Go Back   SRT Forums - SRT4, SRT6, SRT8, SRT10 & Dodge Forum > SRT-4 Other Discussion > SRT Videos
Register Home ForumForum Rules Photo Gallery Active Topics (D) Chat Mark Forums Read


SRTForums.com is the premier Dodge Neon SRT-4 on the internet. Registered Users do not see the above ads. Please Register - It's Free!


Reply
 
LinkBack Thread Tools Display Modes
Old 06-24-2007, 12:19 PM   #76 (permalink)
Premium Member (Lifetime)
 
OrAnGe-SrT4's Avatar
 
Join Date: Jun 2005
Member Number: 29828
Location: Ft. Worth, TX
Trader Rating: (30)
Posts: 3,468
Lifetime Premium Member
Default

Quote: Originally Posted by Phoenyx
Quote: Originally Posted by OrAnGe-SrT4
But what are you tuned for. What did he tune your a/f's to and timing? How much knock? Al tuned his to 10.9-11 pretty much across the board, I cannot remember how much timing he had tuned to. I forgot to menchen when you dynoed his car he had all the mods above plus a DC manifold which had a hugeee crack in it.

If you have something wrong with your car, why would you tune it? That's ridiculous.

My AFRs were around 11.2 at the upper rpms. AFRs don't stay constant throughout the rpm band... close, but not exact. Timing and knock is all a part of the tune. Noone wants to tune a car with knock, so whatever timing a tuner can get away with - without hearing knock - is what they will shoot for. The other thing is that my car was tuned on a dynojet. Al usually tunes on the road. Regardless, his car wasn't running properly so I wouldn't have given those dyno numbers because they ARE low for the type of car he has with those mods. He should be around 360whp on 93.

-M

No he wasn't tuned for the manifold. At the time he had his stocker on and was tuned. Then bought a used DC from another forum member which was already cracked. He had it re-welded at Alamo Autosports and shortly after it formed a huge crack again. And 360hp? You seriously think, even for a IX, to produce 360hp from TBE, intake, 21psi, fuel pump, and tune to produce that? Even on an agressive tune I would think no more then 340hp.
__________________

OrAnGe-SrT4 is offline   Reply With Quote
Sponsored Links
Advertisement
 
Old 06-24-2007, 01:03 PM   #77 (permalink)
SRTforums Member
 
dsmfan95's Avatar
 
Join Date: Mar 2003
Member Number: 529
Location: North Carolina
Trader Rating: (1)
Posts: 1,674
Default

Quote: Originally Posted by OrAnGe-SrT4
No he wasn't tuned for the manifold. At the time he had his stocker on and was tuned. Then bought a used DC from another forum member which was already cracked. He had it re-welded at Alamo Autosports and shortly after it formed a huge crack again. And 360hp? You seriously think, even for a IX, to produce 360hp from TBE, intake, 21psi, fuel pump, and tune to produce that? Even on an agressive tune I would think no more then 340hp.

It's possible for a IX to make that with the right parts. IX's have bad boost taper from the factory due to the better flowing head, but if you can fix that and get it to hold a little more, you can get some extra power out of it.

There is a way to get rid of some of the taper with the right boost controller.
__________________
2005 Evo VIII - Corn Fed

Installs, Diablo Tuning, Clutch Jobs, Transmission Rebuilds, etc. - PM turbo666

Last edited by dsmfan95 : 06-24-2007 at 04:14 PM.
dsmfan95 is offline   Reply With Quote
Old 06-24-2007, 02:37 PM   #78 (permalink)
SRTforums Member
 
j8123's Avatar
 
Join Date: Apr 2005
Member Number: 27049
Location: Louisville, KY
Trader Rating: (11)
Posts: 1,017
Default

Quote: Originally Posted by OrAnGe-SrT4
Quote: Originally Posted by Phoenyx
Quote: Originally Posted by OrAnGe-SrT4
But what are you tuned for. What did he tune your a/f's to and timing? How much knock? Al tuned his to 10.9-11 pretty much across the board, I cannot remember how much timing he had tuned to. I forgot to menchen when you dynoed his car he had all the mods above plus a DC manifold which had a hugeee crack in it.

If you have something wrong with your car, why would you tune it? That's ridiculous.

My AFRs were around 11.2 at the upper rpms. AFRs don't stay constant throughout the rpm band... close, but not exact. Timing and knock is all a part of the tune. Noone wants to tune a car with knock, so whatever timing a tuner can get away with - without hearing knock - is what they will shoot for. The other thing is that my car was tuned on a dynojet. Al usually tunes on the road. Regardless, his car wasn't running properly so I wouldn't have given those dyno numbers because they ARE low for the type of car he has with those mods. He should be around 360whp on 93.

-M

No he wasn't tuned for the manifold. At the time he had his stocker on and was tuned. Then bought a used DC from another forum member which was already cracked. He had it re-welded at Alamo Autosports and shortly after it formed a huge crack again. And 360hp? You seriously think, even for a IX, to produce 360hp from TBE, intake, 21psi, fuel pump, and tune to produce that? Even on an agressive tune I would think no more then 340hp.

I would guess the same on stock boost levels with those mods. Maybe the 340awhp range. The IX's can be beastly when you turn the boost up to 28psi and add a meth kit. I just raced an old friend of mine which I have lost to many times in his IX. He runs consistant 11.8's at the track and traps in the 114-116mph range. With basicly the same mods listed above, but with the addition of meth,28psi and an exhaust side cam. From a roll at 60mph we are dead even through middle of third. Once I get traction I pull him in the very top of third and then put a good 2-3 cars on him by about 115mph. We kept going once, but it got real ugly once he shifted into 5th. The same night me and him raced two other Evo 8's with us at the same time both of which had cams and meth. They were two cars behind him. When I get another EVO it is going to be the IX unless the X turns out to be a better choice.
j8123 is offline   Reply With Quote
Old 06-24-2007, 04:10 PM   #79 (permalink)
SRTforums Member
 
NJ DSM's Avatar
 
Join Date: Oct 2006
Member Number: 46989
Location: 908, NJ
Trader Rating: (34)
Posts: 1,671
Default

Quote: Originally Posted by j8123
Quote: Originally Posted by OrAnGe-SrT4
Quote: Originally Posted by Phoenyx
Quote: Originally Posted by OrAnGe-SrT4
But what are you tuned for. What did he tune your a/f's to and timing? How much knock? Al tuned his to 10.9-11 pretty much across the board, I cannot remember how much timing he had tuned to. I forgot to menchen when you dynoed his car he had all the mods above plus a DC manifold which had a hugeee crack in it.

If you have something wrong with your car, why would you tune it? That's ridiculous.

My AFRs were around 11.2 at the upper rpms. AFRs don't stay constant throughout the rpm band... close, but not exact. Timing and knock is all a part of the tune. Noone wants to tune a car with knock, so whatever timing a tuner can get away with - without hearing knock - is what they will shoot for. The other thing is that my car was tuned on a dynojet. Al usually tunes on the road. Regardless, his car wasn't running properly so I wouldn't have given those dyno numbers because they ARE low for the type of car he has with those mods. He should be around 360whp on 93.

-M

No he wasn't tuned for the manifold. At the time he had his stocker on and was tuned. Then bought a used DC from another forum member which was already cracked. He had it re-welded at Alamo Autosports and shortly after it formed a huge crack again. And 360hp? You seriously think, even for a IX, to produce 360hp from TBE, intake, 21psi, fuel pump, and tune to produce that? Even on an agressive tune I would think no more then 340hp.

I would guess the same on stock boost levels with those mods. Maybe the 340awhp range. The IX's can be beastly when you turn the boost up to 28psi and add a meth kit. I just raced an old friend of mine which I have lost to many times in his IX. He runs consistant 11.8's at the track and traps in the 114-116mph range. With basicly the same mods listed above, but with the addition of meth,28psi and an exhaust side cam. From a roll at 60mph we are dead even through middle of third. Once I get traction I pull him in the very top of third and then put a good 2-3 cars on him by about 115mph. We kept going once, but it got real ugly once he shifted into 5th. The same night me and him raced two other Evo 8's with us at the same time both of which had cams and meth. They were two cars behind him. When I get another EVO it is going to be the IX unless the X turns out to be a better choice.


go do some research on evom.net before you think wrong my man, you would amazed at the heat displacement properties of the IX head with the mivec...

my friend drove all the way to ohio to have his IX tuned, and with a leaky boost controller on 93 pump he made 356/348 wheel on 25psi. this translates into a best time of 11.820 with a 1.701 60' trapping 116. hes never had race gas in it, since he has no tune for it.

hes looking into meth and an o2 housing next, i cant wait. he had this car at 12.4 with a downpipe and boost controller lol
__________________

351/390 on Mustang DynoSTOCK TURBO
RUN YOUR CAR NOT YOUR MOUTH
NJ DSM is offline   Reply With Quote
Old 06-24-2007, 05:37 PM   #80 (permalink)
SRTforums Member
 
j8123's Avatar
 
Join Date: Apr 2005
Member Number: 27049
Location: Louisville, KY
Trader Rating: (11)
Posts: 1,017
Default

Quote: Originally Posted by NJ DSM
Quote: Originally Posted by j8123
Quote: Originally Posted by OrAnGe-SrT4
Quote: Originally Posted by Phoenyx
Quote: Originally Posted by OrAnGe-SrT4
But what are you tuned for. What did he tune your a/f's to and timing? How much knock? Al tuned his to 10.9-11 pretty much across the board, I cannot remember how much timing he had tuned to. I forgot to menchen when you dynoed his car he had all the mods above plus a DC manifold which had a hugeee crack in it.

If you have something wrong with your car, why would you tune it? That's ridiculous.

My AFRs were around 11.2 at the upper rpms. AFRs don't stay constant throughout the rpm band... close, but not exact. Timing and knock is all a part of the tune. Noone wants to tune a car with knock, so whatever timing a tuner can get away with - without hearing knock - is what they will shoot for. The other thing is that my car was tuned on a dynojet. Al usually tunes on the road. Regardless, his car wasn't running properly so I wouldn't have given those dyno numbers because they ARE low for the type of car he has with those mods. He should be around 360whp on 93.

-M

No he wasn't tuned for the manifold. At the time he had his stocker on and was tuned. Then bought a used DC from another forum member which was already cracked. He had it re-welded at Alamo Autosports and shortly after it formed a huge crack again. And 360hp? You seriously think, even for a IX, to produce 360hp from TBE, intake, 21psi, fuel pump, and tune to produce that? Even on an agressive tune I would think no more then 340hp.

I would guess the same on stock boost levels with those mods. Maybe the 340awhp range. The IX's can be beastly when you turn the boost up to 28psi and add a meth kit. I just raced an old friend of mine which I have lost to many times in his IX. He runs consistant 11.8's at the track and traps in the 114-116mph range. With basicly the same mods listed above, but with the addition of meth,28psi and an exhaust side cam. From a roll at 60mph we are dead even through middle of third. Once I get traction I pull him in the very top of third and then put a good 2-3 cars on him by about 115mph. We kept going once, but it got real ugly once he shifted into 5th. The same night me and him raced two other Evo 8's with us at the same time both of which had cams and meth. They were two cars behind him. When I get another EVO it is going to be the IX unless the X turns out to be a better choice.


go do some research on evom.net before you think wrong my man, you would amazed at the heat displacement properties of the IX head with the mivec...

my friend drove all the way to ohio to have his IX tuned, and with a leaky boost controller on 93 pump he made 356/348 wheel on 25psi. this translates into a best time of 11.820 with a 1.701 60' trapping 116. hes never had race gas in it, since he has no tune for it.

hes looking into meth and an o2 housing next, i cant wait. he had this car at 12.4 with a downpipe and boost controller lol

I have done reading up on the XI on evolutionm.. Been a member there since 03. I owned an 03 EVO8 for two years. I am very familar with EVO's. I however do not believe everything I read there either. I have seen first hand how much BS is on that forum. It is not that I am saying it is not possible, but the fact that your friend is running 25psi on pump would tell me he has a very aggressive tune on his car, but we are talking about 21psi on the car in question. You can get even HP if you are willing to run high A/F's, aggressive timing, and occationally see knock count, but I tend to tune on the safe side. Cars usually last longer.
j8123 is offline   Reply With Quote
Old 06-24-2007, 07:05 PM   #81 (permalink)
Premium Member (Lifetime)
 
OrAnGe-SrT4's Avatar
 
Join Date: Jun 2005
Member Number: 29828
Location: Ft. Worth, TX
Trader Rating: (30)
Posts: 3,468
Lifetime Premium Member
Default

Quote: Originally Posted by j8123
Quote: Originally Posted by NJ DSM
Quote: Originally Posted by j8123
Quote: Originally Posted by OrAnGe-SrT4
Quote: Originally Posted by Phoenyx
Quote: Originally Posted by OrAnGe-SrT4
But what are you tuned for. What did he tune your a/f's to and timing? How much knock? Al tuned his to 10.9-11 pretty much across the board, I cannot remember how much timing he had tuned to. I forgot to menchen when you dynoed his car he had all the mods above plus a DC manifold which had a hugeee crack in it.

If you have something wrong with your car, why would you tune it? That's ridiculous.

My AFRs were around 11.2 at the upper rpms. AFRs don't stay constant throughout the rpm band... close, but not exact. Timing and knock is all a part of the tune. Noone wants to tune a car with knock, so whatever timing a tuner can get away with - without hearing knock - is what they will shoot for. The other thing is that my car was tuned on a dynojet. Al usually tunes on the road. Regardless, his car wasn't running properly so I wouldn't have given those dyno numbers because they ARE low for the type of car he has with those mods. He should be around 360whp on 93.

-M

No he wasn't tuned for the manifold. At the time he had his stocker on and was tuned. Then bought a used DC from another forum member which was already cracked. He had it re-welded at Alamo Autosports and shortly after it formed a huge crack again. And 360hp? You seriously think, even for a IX, to produce 360hp from TBE, intake, 21psi, fuel pump, and tune to produce that? Even on an agressive tune I would think no more then 340hp.

I would guess the same on stock boost levels with those mods. Maybe the 340awhp range. The IX's can be beastly when you turn the boost up to 28psi and add a meth kit. I just raced an old friend of mine which I have lost to many times in his IX. He runs consistant 11.8's at the track and traps in the 114-116mph range. With basicly the same mods listed above, but with the addition of meth,28psi and an exhaust side cam. From a roll at 60mph we are dead even through middle of third. Once I get traction I pull him in the very top of third and then put a good 2-3 cars on him by about 115mph. We kept going once, but it got real ugly once he shifted into 5th. The same night me and him raced two other Evo 8's with us at the same time both of which had cams and meth. They were two cars behind him. When I get another EVO it is going to be the IX unless the X turns out to be a better choice.


go do some research on evom.net before you think wrong my man, you would amazed at the heat displacement properties of the IX head with the mivec...

my friend drove all the way to ohio to have his IX tuned, and with a leaky boost controller on 93 pump he made 356/348 wheel on 25psi. this translates into a best time of 11.820 with a 1.701 60' trapping 116. hes never had race gas in it, since he has no tune for it.

hes looking into meth and an o2 housing next, i cant wait. he had this car at 12.4 with a downpipe and boost controller lol

I have done reading up on the XI on evolutionm.. Been a member there since 03. I owned an 03 EVO8 for two years. I am very familar with EVO's. I however do not believe everything I read there either. I have seen first hand how much BS is on that forum. It is not that I am saying it is not possible, but the fact that your friend is running 25psi on pump would tell me he has a very aggressive tune on his car, but we are talking about 21psi on the car in question. You can get even HP if you are willing to run high A/F's, aggressive timing, and occationally see knock count, but I tend to tune on the safe side. Cars usually last longer.

There is always BS on every forum you go to. There's always a jackass lien about mods or how much horsepower they make. Like I said though, TBE, Intake, MBC at 21psi, fuel pump, and tune would not get you 360. Maybe with a meth kit and a lot more aggresive timing yes, or even a cammed evo but not with just those mods.
OrAnGe-SrT4 is offline   Reply With Quote
Old 06-24-2007, 09:54 PM   #82 (permalink)
SRTforums Member
 
Phoenyx's Avatar
 
Join Date: Mar 2003
Member Number: 421
Location: Plano, TX
Trader Rating: (0)
Posts: 817
Default

Quote: Originally Posted by OrAnGe-SrT4
There is always BS on every forum you go to. There's always a jackass lien about mods or how much horsepower they make. Like I said though, TBE, Intake, MBC at 21psi, fuel pump, and tune would not get you 360. Maybe with a meth kit and a lot more aggresive timing yes, or even a cammed evo but not with just those mods.

OK. I'll bite. Let's say it averages 330-340awhp tops. It should be in the 11s with those mods.

In any case, 315awhp is too low. period (especially on 93 octane).

-M
__________________

EVO VIII: Exhaust+Meth
MR2 Turbo: Exhaust
Phoenyx is offline   Reply With Quote
Old 06-25-2007, 06:51 AM   #83 (permalink)
Premium Member (Lifetime)
 
OrAnGe-SrT4's Avatar
 
Join Date: Jun 2005
Member Number: 29828
Location: Ft. Worth, TX
Trader Rating: (30)
Posts: 3,468
Lifetime Premium Member
Default

Quote: Originally Posted by Phoenyx
Quote: Originally Posted by OrAnGe-SrT4
There is always BS on every forum you go to. There's always a jackass lien about mods or how much horsepower they make. Like I said though, TBE, Intake, MBC at 21psi, fuel pump, and tune would not get you 360. Maybe with a meth kit and a lot more aggresive timing yes, or even a cammed evo but not with just those mods.

OK. I'll bite. Let's say it averages 330-340awhp tops. It should be in the 11s with those mods.

In any case, 315awhp is too low. period (especially on 93 octane).

-M

Yea it should. We were all hoping for 330, but we had been to the track so much that the stock clutch was just crapping out. You know, those 5800 rpm launches will do that to the stocker. He's saving right now for a Exedy twin plate. We'll see what he can make after that.
OrAnGe-SrT4 is offline   Reply With Quote
Old 06-25-2007, 09:16 AM   #84 (permalink)
SRTforums Member
 
dsmfan95's Avatar
 
Join Date: Mar 2003
Member Number: 529
Location: North Carolina
Trader Rating: (1)
Posts: 1,674
Default

Quote: Originally Posted by j8123

I have done reading up on the XI on evolutionm.. Been a member there since 03. I owned an 03 EVO8 for two years. I am very familar with EVO's. I however do not believe everything I read there either. I have seen first hand how much BS is on that forum. It is not that I am saying it is not possible, but the fact that your friend is running 25psi on pump would tell me he has a very aggressive tune on his car, but we are talking about 21psi on the car in question. You can get even HP if you are willing to run high A/F's, aggressive timing, and occationally see knock count, but I tend to tune on the safe side. Cars usually last longer.

25psi on pump would mean a non-aggressive tune so that it wouldn't knock.
dsmfan95 is offline   Reply With Quote
Old 06-25-2007, 03:06 PM   #85 (permalink)
SRTforums Member
 
j8123's Avatar
 
Join Date: Apr 2005
Member Number: 27049
Location: Louisville, KY
Trader Rating: (11)
Posts: 1,017
Default

Quote: Originally Posted by dsmfan95
Quote: Originally Posted by j8123

I have done reading up on the XI on evolutionm.. Been a member there since 03. I owned an 03 EVO8 for two years. I am very familar with EVO's. I however do not believe everything I read there either. I have seen first hand how much BS is on that forum. It is not that I am saying it is not possible, but the fact that your friend is running 25psi on pump would tell me he has a very aggressive tune on his car, but we are talking about 21psi on the car in question. You can get even HP if you are willing to run high A/F's, aggressive timing, and occationally see knock count, but I tend to tune on the safe side. Cars usually last longer.

25psi on pump would mean a non-aggressive tune so that it wouldn't knock.

Are you saying that 25psi on pump is a non-aggressive boost level?
j8123 is offline   Reply With Quote
Old 06-25-2007, 05:03 PM   #86 (permalink)
Premium Member (Lifetime)
 
OrAnGe-SrT4's Avatar
 
Join Date: Jun 2005
Member Number: 29828
Location: Ft. Worth, TX
Trader Rating: (30)
Posts: 3,468
Lifetime Premium Member
Default

Quote: Originally Posted by j8123
Quote: Originally Posted by dsmfan95
Quote: Originally Posted by j8123

I have done reading up on the XI on evolutionm.. Been a member there since 03. I owned an 03 EVO8 for two years. I am very familar with EVO's. I however do not believe everything I read there either. I have seen first hand how much BS is on that forum. It is not that I am saying it is not possible, but the fact that your friend is running 25psi on pump would tell me he has a very aggressive tune on his car, but we are talking about 21psi on the car in question. You can get even HP if you are willing to run high A/F's, aggressive timing, and occationally see knock count, but I tend to tune on the safe side. Cars usually last longer.

25psi on pump would mean a non-aggressive tune so that it wouldn't knock.

Are you saying that 25psi on pump is a non-aggressive boost level?

Depends on the way you look at it. Some people run 25 psi all day long on pump gas with either a decent tune or running meth. A lot of people run up to 28 sometimes even 30 on pump gas with the help of meth or alky.
OrAnGe-SrT4 is offline   Reply With Quote
Old 06-25-2007, 05:33 PM   #87 (permalink)
SRTforums Member
 
Phoenyx's Avatar
 
Join Date: Mar 2003
Member Number: 421
Location: Plano, TX
Trader Rating: (0)
Posts: 817
Default

Actually I think the poster is trying to say that if you increase the boost levels to 25psi, then you must be looking for a lot more power which would in turn mean an aggressive tune since you'd have to add more fuel, lower timing, etc.. But that's not really an aggressive tune definition.

PSI numbers don't indicate an aggressive tune. What does indicate an aggressive tune is squeezing every ounce of whp you can just before the knock threshold. This can be a combination of things, increased boost, increased timing, higher AFRs, etc..

My car is aggressively tuned to get the numbers that it did on 91 oct. If I were to go to a track on a very hot day (~above 90F) or a very cold day (below ~50F), I'd either have to lower my boost, or put race gas in it to prevent knock.

-M

Last edited by Phoenyx : 06-25-2007 at 05:35 PM.
Phoenyx is offline   Reply With Quote
Old 06-25-2007, 06:25 PM   #88 (permalink)
SRTforums Member
 
j8123's Avatar
 
Join Date: Apr 2005
Member Number: 27049
Location: Louisville, KY
Trader Rating: (11)
Posts: 1,017
Default

Quote: Originally Posted by Phoenyx
Actually I think the poster is trying to say that if you increase the boost levels to 25psi, then you must be looking for a lot more power which would in turn mean an aggressive tune since you'd have to add more fuel, lower timing, etc.. But that's not really an aggressive tune definition.

PSI numbers don't indicate an aggressive tune. What does indicate an aggressive tune is squeezing every ounce of whp you can just before the knock threshold. This can be a combination of things, increased boost, increased timing, higher AFRs, etc..

My car is aggressively tuned to get the numbers that it did on 91 oct. If I were to go to a track on a very hot day (~above 90F) or a very cold day (below ~50F), I'd either have to lower my boost, or put race gas in it to prevent knock.

-M

I get your point. It does depend on timing, A/F, and how the load cells are mapped out with said timing and fuel, but if the person is putting down 358whp on said mods I would consider that an aggressive tune on that 25psi on pump gas. That is why I made the comment. I would not consider only the amount of boost as the only indicator of an aggressive tune. You are 100% right.
j8123 is offline   Reply With Quote
Old 06-25-2007, 06:28 PM   #89 (permalink)
SRTforums Member
 
j8123's Avatar
 
Join Date: Apr 2005
Member Number: 27049
Location: Louisville, KY
Trader Rating: (11)
Posts: 1,017
Default

Quote: Originally Posted by OrAnGe-SrT4
Quote: Originally Posted by j8123
Quote: Originally Posted by dsmfan95
Quote: Originally Posted by j8123

I have done reading up on the XI on evolutionm.. Been a member there since 03. I owned an 03 EVO8 for two years. I am very familar with EVO's. I however do not believe everything I read there either. I have seen first hand how much BS is on that forum. It is not that I am saying it is not possible, but the fact that your friend is running 25psi on pump would tell me he has a very aggressive tune on his car, but we are talking about 21psi on the car in question. You can get even HP if you are willing to run high A/F's, aggressive timing, and occationally see knock count, but I tend to tune on the safe side. Cars usually last longer.

25psi on pump would mean a non-aggressive tune so that it wouldn't knock.

Are you saying that 25psi on pump is a non-aggressive boost level?

Depends on the way you look at it. Some people run 25 psi all day long on pump gas with either a decent tune or running meth. A lot of people run up to 28 sometimes even 30 on pump gas with the help of meth or alky.

Meth is a whole different ball game. I run 27psi on HOM right now with 0KR on meth with a very safe A/F. If I ran any more than 23psi on pure pump gas I would see KR. I think I explained my other reasons in the post above.
j8123 is offline   Reply With Quote
Old 06-25-2007, 06:48 PM   #90 (permalink)
Premium Member (Lifetime)
 
OrAnGe-SrT4's Avatar
 
Join Date: Jun 2005
Member Number: 29828
Location: Ft. Worth, TX
Trader Rating: (30)
Posts: 3,468
Lifetime Premium Member
Default

Quote: Originally Posted by Phoenyx
Actually I think the poster is trying to say that if you increase the boost levels to 25psi, then you must be looking for a lot more power which would in turn mean an aggressive tune since you'd have to add more fuel, lower timing, etc.. But that's not really an aggressive tune definition.

PSI numbers don't indicate an aggressive tune. What does indicate an aggressive tune is squeezing every ounce of whp you can just before the knock threshold. This can be a combination of things, increased boost, increased timing, higher AFRs, etc..

My car is aggressively tuned to get the numbers that it did on 91 oct. If I were to go to a track on a very hot day (~above 90F) or a very cold day (below ~50F), I'd either have to lower my boost, or put race gas in it to prevent knock.

-M

True, a very aggresive tune would be an increase in timing to the limits and say a 12 a/f ratio. Basically pushing the motor to the very edge before it blows. This isn't the best for logitivity of both turbo and motor, but some people are willing to risk that for the increase of power. My friend as spoken above wasn't wiling to risk that so keeping timing at a fairly low level and a/f in the 10.9-lowwww 11's is where he was comfortable at.

Quote: Originally Posted by j8123
Quote: Originally Posted by OrAnGe-SrT4
Quote: Originally Posted by j8123
Quote: Originally Posted by dsmfan95
Quote: Originally Posted by j8123

I have done reading up on the XI on evolutionm.. Been a member there since 03. I owned an 03 EVO8 for two years. I am very familar with EVO's. I however do not believe everything I read there either. I have seen first hand how much BS is on that forum. It is not that I am saying it is not possible, but the fact that your friend is running 25psi on pump would tell me he has a very aggressive tune on his car, but we are talking about 21psi on the car in question. You can get even HP if you are willing to run high A/F's, aggressive timing, and occationally see knock count, but I tend to tune on the safe side. Cars usually last longer.

25psi on pump would mean a non-aggressive tune so that it wouldn't knock.

Are you saying that 25psi on pump is a non-aggressive boost level?

Depends on the way you look at it. Some people run 25 psi all day long on pump gas with either a decent tune or running meth. A lot of people run up to 28 sometimes even 30 on pump gas with the help of meth or alky.

Meth is a whole different ball game. I run 27psi on HOM right now with 0KR on meth with a very safe A/F. If I ran any more than 23psi on pure pump gas I would see KR. I think I explained my other reasons in the post above.

But see we have no way of tuning our ecu's unless we go standalone of those new programs that are coming out. So increasing boost isn't the best way to make power on our cars. But if you were to tune your car on 25 psi im sure you could get away with limited knock. Although I can't see much power being made on 25 psi since you'd have to retard more timing for the added knock you will be getting on pump gas and that high of boost.
OrAnGe-SrT4 is offline   Reply With Quote
Sponsored Links
Advertisement
 
Reply

Register Home Forum Photo Gallery Active Topics (D) Chat Mark Forums Read
  SRT Forums - SRT4, SRT6, SRT8, SRT10 & Dodge Forum > SRT-4 Other Discussion > SRT Videos




Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

vB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

» Wheel & Tire Center

Sponsors

Powered by vBadvanced CMPS v3.0 RC2

All times are GMT -6. The time now is 10:01 PM.

(C) SRTforums.com
Page generated in 0.32961 seconds with 13 queries

Search Engine Optimization by vBSEO 3.1.0