Tuning with Staged ECU only

[ayoungblood]

Whats the disadvantage?


Lets say a 1:1FPR w/ return obviously, big turbo and a map clamp so the PCM doesnt see all that boost.

Right now Im @ 20psi and im not using any map clamp and im @ ~ 9.8:1 from 4000-4800 and then from 5000-6000 im ~ 11.0- 11.5:1.

I plan on just clamping it so the PCM will only see ~ 18lbs of boost and turning it up to about 23-24lbs along with a little more fuel.

Is there any reason I shouldnt do this?

I know the reason for a fuel computer is to keep take fuel out in certin areas so it wont run so rich so I dont need a lecture on why to use a fuel computer. I just got the car running and just looking for a little more fun

[mario03srt]

Quote: Originally Posted by ayoungblood

Whats the disadvantage?


Lets say a 1:1FPR w/ return obviously, big turbo and a map clamp so the PCM doesnt see all that boost.

Right now Im @ 20psi and im not using any map clamp and im @ ~ 9.8:1 from 4000-4800 and then from 5000-6000 im ~ 11.0- 11.5:1.

I plan on just clamping it so the PCM will only see ~ 18lbs of boost and turning it up to about 23-24lbs along with a little more fuel.

Is there any reason I shouldnt do this?

.

I know the reason for a fuel computer is to keep take fuel out in certin areas so it wont run so rich so I dont need a lecture on why to use a fuel computer. I just got the car running and just looking for a little more fun

One thing to consider is by reducing the map signal you increase timing. High boost and high timing does not always necessarily go hand in hand especially on pump gas. There have been a lot of SRT's cars with rods coming out of the back of the block due to timing detonation issues.

Something to think about.

Marion

[ayoungblood]

Quote: Originally Posted by mario03srt

Quote: Originally Posted by ayoungblood

Whats the disadvantage?


Lets say a 1:1FPR w/ return obviously, big turbo and a map clamp so the PCM doesnt see all that boost.

Right now Im @ 20psi and im not using any map clamp and im @ ~ 9.8:1 from 4000-4800 and then from 5000-6000 im ~ 11.0- 11.5:1.

I plan on just clamping it so the PCM will only see ~ 18lbs of boost and turning it up to about 23-24lbs along with a little more fuel.

Is there any reason I shouldnt do this?

.

I know the reason for a fuel computer is to keep take fuel out in certin areas so it wont run so rich so I dont need a lecture on why to use a fuel computer. I just got the car running and just looking for a little more fun

One thing to consider is by reducing the map signal you increase timing. High boost and high timing does not always necessarily go hand in hand especially on pump gas. There have been a lot of SRT's cars with rods coming out of the back of the block due to timing detonation issues.

Something to think about.

Marion

Well I did think of that;

Ive read the S1 Map can only read 18.5lbs of boost, if thats correct I wanted to clamp it to only see right around 18lbs so it wont pull a ton of timing if it sees 24lbs (even though it cant) and then not run right.

Isnt that pretty much what any fuel controller does? Clamps the map and then takes out fuel at the specified RPM's?

I figured by letting it see almost all the boost the S1 timing/fuel trim can see and just uping the FP a little bit would be ~ the same as a Dtec or a SAFC II just that I cant take fuel out a "XXXX" rpms... correct?

Thanks Marion!

-Adam

[mario03srt]

Quote: Originally Posted by ayoungblood

Quote: Originally Posted by mario03srt

Quote: Originally Posted by ayoungblood

Whats the disadvantage?


Lets say a 1:1FPR w/ return obviously, big turbo and a map clamp so the PCM doesnt see all that boost.

Right now Im @ 20psi and im not using any map clamp and im @ ~ 9.8:1 from 4000-4800 and then from 5000-6000 im ~ 11.0- 11.5:1.

I plan on just clamping it so the PCM will only see ~ 18lbs of boost and turning it up to about 23-24lbs along with a little more fuel.

Is there any reason I shouldnt do this?

.

I know the reason for a fuel computer is to keep take fuel out in certin areas so it wont run so rich so I dont need a lecture on why to use a fuel computer. I just got the car running and just looking for a little more fun

One thing to consider is by reducing the map signal you increase timing. High boost and high timing does not always necessarily go hand in hand especially on pump gas. There have been a lot of SRT's cars with rods coming out of the back of the block due to timing detonation issues.

Something to think about.

Marion

Well I did think of that;

Ive read the S1 Map can only read 18.5lbs of boost, if thats correct I wanted to clamp it to only see right around 18lbs so it wont pull a ton of timing if it sees 24lbs (even though it cant) and then not run right.

Isnt that pretty much what any fuel controller does? Clamps the map and then takes out fuel at the specified RPM's?

I figured by letting it see almost all the boost the S1 timing/fuel trim can see and just uping the FP a little bit would be ~ the same as a Dtec or a SAFC II just that I cant take fuel out a "XXXX" rpms... correct?

Thanks Marion!

-Adam

Yes I agree and so if 18 psi is 4.83 volts clamp it to 4.7 outta do the trick. Just enough to stop fuel/spark cut and keep timing at a minimum. Unless you do W/Inj then you can twist it (timing/afr) up quite a bit.

Marion

[ayoungblood]

Quote: Originally Posted by mario03srt

Quote: Originally Posted by ayoungblood

Quote: Originally Posted by mario03srt

Quote: Originally Posted by ayoungblood

Whats the disadvantage?


Lets say a 1:1FPR w/ return obviously, big turbo and a map clamp so the PCM doesnt see all that boost.

Right now Im @ 20psi and im not using any map clamp and im @ ~ 9.8:1 from 4000-4800 and then from 5000-6000 im ~ 11.0- 11.5:1.

I plan on just clamping it so the PCM will only see ~ 18lbs of boost and turning it up to about 23-24lbs along with a little more fuel.

Is there any reason I shouldnt do this?

.

I know the reason for a fuel computer is to keep take fuel out in certin areas so it wont run so rich so I dont need a lecture on why to use a fuel computer. I just got the car running and just looking for a little more fun

One thing to consider is by reducing the map signal you increase timing. High boost and high timing does not always necessarily go hand in hand especially on pump gas. There have been a lot of SRT's cars with rods coming out of the back of the block due to timing detonation issues.

Something to think about.

Marion

Well I did think of that;

Ive read the S1 Map can only read 18.5lbs of boost, if thats correct I wanted to clamp it to only see right around 18lbs so it wont pull a ton of timing if it sees 24lbs (even though it cant) and then not run right.

Isnt that pretty much what any fuel controller does? Clamps the map and then takes out fuel at the specified RPM's?

I figured by letting it see almost all the boost the S1 timing/fuel trim can see and just uping the FP a little bit would be ~ the same as a Dtec or a SAFC II just that I cant take fuel out a "XXXX" rpms... correct?

Thanks Marion!

-Adam

Yes I agree and so if 18 psi is 4.83 volts clamp it to 4.7 outta do the trick. Just enough to stop fuel/spark cut and keep timing at a minimum. Unless you do W/Inj then you can twist it (timing/afr) up quite a bit.

Marion

You rock man! Thats the next thing I was going to ask. I didnt know what Voltage was 18psi... figured it was arond 4.7-4.9V but not sure.

Ill prob hook that up today and push the PSI to ~ 22or 23 psi and see what happens.

As is it ALMOST breaks loose in 3rd @ about 50mph, 2nd gear hits boost and blows the tire off easy. I def need to run around in a drag radial or slick

(Its the brand new Azenis sports, 225/40/18 and still not enough traction)

[mario03srt]

Quote: Originally Posted by ayoungblood

Quote: Originally Posted by mario03srt

Quote: Originally Posted by ayoungblood

Quote: Originally Posted by mario03srt

Quote: Originally Posted by ayoungblood

Whats the disadvantage?


Lets say a 1:1FPR w/ return obviously, big turbo and a map clamp so the PCM doesnt see all that boost.

Right now Im @ 20psi and im not using any map clamp and im @ ~ 9.8:1 from 4000-4800 and then from 5000-6000 im ~ 11.0- 11.5:1.

I plan on just clamping it so the PCM will only see ~ 18lbs of boost and turning it up to about 23-24lbs along with a little more fuel.

Is there any reason I shouldnt do this?

.

I know the reason for a fuel computer is to keep take fuel out in certin areas so it wont run so rich so I dont need a lecture on why to use a fuel computer. I just got the car running and just looking for a little more fun

One thing to consider is by reducing the map signal you increase timing. High boost and high timing does not always necessarily go hand in hand especially on pump gas. There have been a lot of SRT's cars with rods coming out of the back of the block due to timing detonation issues.

Something to think about.

Marion

Well I did think of that;

Ive read the S1 Map can only read 18.5lbs of boost, if thats correct I wanted to clamp it to only see right around 18lbs so it wont pull a ton of timing if it sees 24lbs (even though it cant) and then not run right.

Isnt that pretty much what any fuel controller does? Clamps the map and then takes out fuel at the specified RPM's?

I figured by letting it see almost all the boost the S1 timing/fuel trim can see and just uping the FP a little bit would be ~ the same as a Dtec or a SAFC II just that I cant take fuel out a "XXXX" rpms... correct?

Thanks Marion!

-Adam

Yes I agree and so if 18 psi is 4.83 volts clamp it to 4.7 outta do the trick. Just enough to stop fuel/spark cut and keep timing at a minimum. Unless you do W/Inj then you can twist it (timing/afr) up quite a bit.

Marion

You rock man! Thats the next thing I was going to ask. I didnt know what Voltage was 18psi... figured it was arond 4.7-4.9V but not sure.

Ill prob hook that up today and push the PSI to ~ 22or 23 psi and see what happens.

As is it ALMOST breaks loose in 3rd @ about 50mph, 2nd gear hits boost and blows the tire off easy. I def need to run around in a drag radial or slick

(Its the brand new Azenis sports, 225/40/18 and still not enough traction)

What is your setup?

Marion

[ayoungblood]

Quote:

What is your setup?

Marion

Look in Sig... STOCK!!