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Old 12-24-2012, 11:35 AM   #1 (permalink)
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Default Faster spooling turbo than the Garrett dbb 3076

Having some issues with my Garrett 3076 and was thinking just tossing another turbo in their. I have a built bottom end, ragetek head and stage 3 cams. Been awhile since Iíve done turbo research and wondering if anyone already has the answer. Anyway, the question is, is there any new turbos on the market that are comparable to the 3076 but spool faster and maybe add little more power. Just looking for a turbo to run on 93 octane around 21lbs of boost. Thanks for any help.
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Old 12-24-2012, 11:50 AM   #2 (permalink)
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GTX3076 - It has a similar spool but with a billet wheel that makes more power. Your cams and head are killing the low end, trust me I know, I have the same kind of setup. IF you don't have cam gears, they can get you back some of the low end.

One thing you could do is get a slightly smaller turbo that spools quicker, and let the cams and head give you the power on the top end.

Some of the other guys with other turbo type experience should chime in.
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Old 12-24-2012, 01:11 PM   #3 (permalink)
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Bigger cams dont necessarily kill low end.

HTA30r, full spool at 23psi with crower s2 cams (bigger than BC s3) was at 3300rpm on 91oct/meth (same spoolup as a local's 47lb s3 on the same dynosheet overlay).

What cams do you have? If you are having considerable low end loss enginejoe, I'd make sure that you have the cams set at true 0,0 with a cam setting tool. Crower and BC cams seem to vary greatly in their quality control, and if not set to true 0,0 your results can vary a great deal.

I have a gtx30, and had an HTA30, OP...It's the business. I dropped my 6262 I had for the GTX30 because I missed my HTA30 for street duty purposes. Send your turbo to FP and get your turbo upgraded and refreshed.
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Old 12-24-2012, 01:22 PM   #4 (permalink)
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Get the GTX series as mentioned earlier. They are hugely more efficient than the old GT series turbo.

Check out this thread and see my Dyno sheet and mods list in post #20.

DYNO DAY @ FWD-Performance ( Post your dyno sheet up!!! )
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Old 12-24-2012, 01:58 PM   #5 (permalink)
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Man, I know nigel made a thread about your initial tune that he did right? I was looking around and noticed the build is very similar to what I'm building. I bought my tunergeeks top mount kit last month with a gtx3076r. Can't build the car until after upcoming deployment though / August-ish.

But yeah, gtx3076r seems pretty sweet. Hopefully it's what I was looking for.

Edit: Found it. GTX 3071R Dyno
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Old 12-24-2012, 02:35 PM   #6 (permalink)
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Quote: Originally Posted by D-SRT View Post
Bigger cams dont necessarily kill low end.

HTA30r, full spool at 23psi with crower s2 cams (bigger than BC s3) was at 3300rpm on 91oct/meth (same spoolup as a local's 47lb s3 on the same dynosheet overlay).

What cams do you have? If you are having considerable low end loss enginejoe, I'd make sure that you have the cams set at true 0,0 with a cam setting tool. Crower and BC cams seem to vary greatly in their quality control, and if not set to true 0,0 your results can vary a great deal.

I have a gtx30, and had an HTA30, OP...It's the business. I dropped my 6262 I had for the GTX30 because I missed my HTA30 for street duty purposes. Send your turbo to FP and get your turbo upgraded and refreshed.

I didn't get cam gears, so I can't adjust the cams. I have worse low end than before. I used to get full spool around 3400 with the stock motor and cams. So, you can't just throw cams in there and expect to keep your low end. You need cam gears - I think I said that above...
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Old 12-24-2012, 03:18 PM   #7 (permalink)
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Im guessing that was on E85... huge numbers though. What will it do on 93 octane and 21 lbs of boost?

Quote: Originally Posted by 1LAPSRT View Post
Get the GTX series as mentioned earlier. They are hugely more efficient than the old GT series turbo.

Check out this thread and see my Dyno sheet and mods list in post #20.

DYNO DAY @ FWD-Performance ( Post your dyno sheet up!!! )

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Old 12-24-2012, 03:29 PM   #8 (permalink)
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Quote: Originally Posted by enginjoe View Post
I didn't get cam gears, so I can't adjust the cams. I have worse low end than before. I used to get full spool around 3400 with the stock motor and cams. So, you can't just throw cams in there and expect to keep your low end. You need cam gears - I think I said that above...

you also insinuated cams alone hurt your low end, if you want to nitpick.


true 0,0 with the cam setting tool put my cam gears at -2, +7. So you can see if you had cams at "tdc" on stock cam gears, what type of effect that'd have, not only for your spool, but your entire powerband..
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Old 12-24-2012, 04:31 PM   #9 (permalink)
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Quote: Originally Posted by SRT4-305 View Post
Im guessing that was on E85... huge numbers though. What will it do on 93 octane and 21 lbs of boost?

The setup:

-Garrett GTX3071r with TiAL V-band .63 SS housing
-Tunergeeks turbo kit
-Built 2.4
-CNC SS head with Crane 16's
-DW 1300's
-3" exhaust with high flow cat
-Custom fuel setup with Stock canister (modified by Gizimodo) using a Walbro 255 feeding a Integrated Engineering surge tank that houses a Bosch 044
-Boomba Fuel Rail

Fuel is Ignite 114

Peak boost was 28psi, but peak power was made at 27psi.

GTX 3071R Dyno
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Old 12-24-2012, 04:41 PM   #10 (permalink)
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Quote: Originally Posted by D-SRT View Post
you also insinuated cams alone hurt your low end, if you want to nitpick.


true 0,0 with the cam setting tool put my cam gears at -2, +7. So you can see if you had cams at "tdc" on stock cam gears, what type of effect that'd have, not only for your spool, but your entire powerband..

If you look at the dyno's of before and after cams, even with cam gears, the really low parts (2k - 3k rpms) of the graphs are lower even if the turbo ends up spooling around the same. The thing is that how much time does someone spend down low when racing? Not much, but you notice it driving around. If you dial in the cams, the loss is minor, but I doubt it would ever would go away unless other parts of the setup were changed.
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Old 12-26-2012, 02:33 AM   #11 (permalink)
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Borg Warner EFR 7064 $1708hands down it has better transient boost response than any other turbo currently available pricing is about the same as a FP hta3076 $1999 or the gtx3071r 1399 with no turbine housing housing cost like 300 if you want tial its closer to $500 with the EFR7064 you get one of the newest designs for turbine and compressors (Garrett turbine wheels are hold overs from the 70s and 80's btw) the technology is brand new cutting edge as far as turbos go soon there is gonna be the efr 7163 which will be faster spooling than the 7064 and produce only 10 less hp i highly suggest taking a look at the efr stuff they really make the garret units look bad
Borg Warner 7064 EFR Turbo- TREADSTONE PERFORMANCE
on top of all that the efr can be internally gated and comes with a built in bov liek the stock turbo so if you wanted you could sell off your current bov and wg to really offset the cost im considering this upgrade my self from my PTE CEA5557
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Old 12-26-2012, 06:39 AM   #12 (permalink)
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Quote: Originally Posted by loroku View Post
Borg Warner EFR 7064 $1708hands down it has better transient boost response than any other turbo currently available pricing is about the same as a FP hta3076 $1999 or the gtx3071r 1399 with no turbine housing housing cost like 300 if you want tial its closer to $500 with the EFR7064 you get one of the newest designs for turbine and compressors (Garrett turbine wheels are hold overs from the 70s and 80's btw) the technology is brand new cutting edge as far as turbos go soon there is gonna be the efr 7163 which will be faster spooling than the 7064 and produce only 10 less hp i highly suggest taking a look at the efr stuff they really make the garret units look bad
Borg Warner 7064 EFR Turbo- TREADSTONE PERFORMANCE
on top of all that the efr can be internally gated and comes with a built in bov liek the stock turbo so if you wanted you could sell off your current bov and wg to really offset the cost im considering this upgrade my self from my PTE CEA5557

The Both Warner EFR is a great product but the comment about Garrett be held over from seventies and eighties technology is complete BS . The GTX series billet wheels are all new and hugely more efficient than the older GT series.
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Old 12-26-2012, 09:17 AM   #13 (permalink)
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The EFR turbos are pretty cool, but you need a fancy custom made manifold to use them. Definitely an option though.
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Old 12-26-2012, 10:54 AM   #14 (permalink)
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Quote: Originally Posted by enginjoe View Post
The EFR turbos are pretty cool, but you need a fancy custom made manifold to use them. Definitely an option though.

WRONG!, you only need a fancy manifold if you are using the twinscroll, they are available without it. however the 7064 has a .83 T3 hotside as an option while larger ones use an undivided T4.
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Old 12-26-2012, 11:01 AM   #15 (permalink)
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So they will bolt right up to an ATP, AGP, or whatever log manifold and fit?
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