25psi Spike on GM Tune

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01-21-2010, 01:40 PM

#26

Permafried-

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Quote:

Originally Posted by Psytocrophic

I kind of have an off topic question.. Do you think having a GMS1 Trifecta or HPTuners will make your car less efficiant on the track (like autocross not drag) due to traction issues, losing control on turns ect ect? or do you think if you can maintain proper speed and know what your doing it will be even quicker?

Continue..

You'll need to practice more throttle control particularly in 2nd and 3rd gear with the increased HP/TQ comes increased wheelspin being FWD. Beyond that I can't see it as being less efficient since it gets up to speed faster and digs harder out of the corners even in the lower RPM band. This is with the GMS1 anyways; with Trifecta and HP Tuners it entirely depends how your boost is controlled and when it comes on strong, etc.

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01-21-2010, 03:46 PM

#27

BYT*SS*TURBO

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25psi!!???!?!?!? You're going to have piston failure.

(Obviously sarcasm if you couldn't figure it out)

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01-21-2010, 04:10 PM

#28

crypticscifer

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Quote:

Originally Posted by BYT*SS*TURBO

25psi!!???!?!?!? You're going to have piston failure.

I say he blows the floor bolts.

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01-21-2010, 05:06 PM

#29

SSlobalt

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Quote:

Originally Posted by crypticscifer

I say he blows the floor bolts.

Nah. Manifold welds, fo sho!

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01-21-2010, 08:21 PM

#30

RYRO14

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Quote:

Originally Posted by JPizzle

It only spikes 25psi after I clear the code: P2096 Post Catalytic Fuel Trim Bank 1 System Too Lean. And then it pulls like a raped ape at 25 psi, then I try a minute or so later, and it holds 20psi like it should....

Is this the ECU not being about to compensate for the first WOT after I clear the code (Kinda like learn down?)

Yeah the ECU knows somethings up, then you clear the code and it forgets and then compensates to prevent overspinning the turbo. Your pretty much ******* with your ECU and the turbo is paying the price lol

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01-21-2010, 08:33 PM

#31

JPizzle

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Quote:

Originally Posted by crypticscifer

I say he blows the floor bolts.

Quote:

Originally Posted by SSlobalt

Nah. Manifold welds, fo sho!

Quote:

Originally Posted by RYRO14

Yea, that's what I'm thinking. I just hope the Hahn DP fixes this problem.

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07-18-2011, 10:02 AM

#32

kebbester

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I have a 09 tc with stage 1 a k&n drop in and a forge bpv and im holding not spiking at 24-25 psi every now and then! It stops at 20psi for a sec then goes to 24 psi at wot .

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07-18-2011, 10:07 AM

#33

BartSS

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Quote:

Originally Posted by 80vetteL82

Yah, Ive spiked up to about 24-25psi with just a Dejon SRI.

You should dyno'd. I dont think anybody has dynod the GMS1 with that many bolt ons. Id be curious to see what it does.

I dynod mine with full boltons and the stage kit... dyno was a little gay but i got 286whp and 297tq

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07-18-2011, 11:18 AM

#34

CudaJoe

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Thanks for bringing this thread back, otherwise I would have never seen it...

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07-18-2011, 11:20 AM

#35

RYRO14

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Damn old thread lol

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07-18-2011, 11:26 AM

#36

DoMiStIc_RuSh_06

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Quote:

Originally Posted by BartSS

I dynod mine with full boltons and the stage kit... dyno was a little gay but i got 286whp and 297tq

That's pretty close to what I got, mines down in hp a bit tho. With gms1, Kn Sri and tbe I made 271Whp & 297wtq with my car acting wonky.

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07-18-2011, 11:38 AM

#37

gdubs

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Quote:

Originally Posted by 80vetteL82

Yah, Ive spiked up to about 24-25psi with just a Dejon SRI.

You should dyno'd. I dont think anybody has dynod the GMS1 with that many bolt ons. Id be curious to see what it does.

I have.