fredds-turbaltSS

Ok, so i recently installed my CIA IC piping my car now seems slower. My boost is actually higher now, holding at ~22PSI, I am tuned and before the IC piping i was holding a constant of 20PSI. Could it be the more PSI im noticing and maybe need a re-tune?? The pipe is very hot could it be that? My PSI is steady so it shouldn't be a boost leak correct? Anyway all information is appreciative. Thanks!!

ogc

Youd need a retune... Car is not tuned for the charge piping

Perfect.disguise

You won't need a re-tune for just hard pipes.

reign1

for CP yes u do need a re tune.

Perfect.disguise

If thats the case it must suck for all the guys waiting for the canned GM Stage.

tomj77

iTrader: (2)

why would u need a retune? maybe u have a leak somewhere hince the higher boost and the slowishness.

40rty

Did you get the performance or appearance?

fredds-turbaltSS

the apperance.....a leak would show higher PSI? How can i check for a leak? I was thinking silly puddy or something around the couplings

07MetallicSC

iTrader: (16)

why would you need to retune for charge piping? it isnt a power adder mod

BLAZIN07SS

iTrader: (7)

slower or laggier? bigger piping is gonna lag a little

fredds-turbaltSS

Hmm i think it deff feels slower...and my girlfriend also thinks so, and it didn't start until i put some miles on it, right after the install i didn't notice anything different

tomj77

iTrader: (2)

maybe u damaged ur map sensor when u put it back in, but that would throw a code probably. if u wanna check for leaks, spray bottle with soapy water, it will bubble where it leaks.

PimpLay2

did you remember to put in the O-ring in lower charge pipe?

fredds-turbaltSS

i only put the hot side on....would the water work with the car idling,reving it only boost under load?>?

Terminator2

You do not need a retune but the car will feel slower at first as it has to relearn. Mine felt the same way for the first 100 miles or so but it got better after that. CPs are post MAF, and because our cars have a factory wideband the only reason retune is necessary is if you have an intake that is skewing the MAF readings . Mine were off by about 8% from stock because of the 3.25" inlet on my Dejon intake. That was causing the ECM to pull fuel even at WOt so I was running too lean. I have that pretty much fixed now.

fredds-turbaltSS

hmm ok...well i do have the Hahn CAI so maybe it is messing with the MAF, im putting a catless DP on and going to get it re-tuned to that anyway so...

buellfooll

Didn't I read somewhere the ECU equires at least 6 "start-run-stop" cycles to fully relearn the stock tune? Just for ***** and giggles disconnect the battery and hook it back up to reset everything to default.

fredds-turbaltSS

See when i first did it it seemed fine after driving and starting/stopping, more then six its feeling slower...Someone said the boost would be higher if i had a leak i guess i should just start looking there, wouldnt it have been slower from the start if it was from a leak? and why would it build more PSI if theres a leak that doesnt make sense

Stamina

You're right. I would disregard that comment.

If you blow up a balloon with a hole in it, the air leaves through the hole and there's no pressure left in the balloon. There's no way you'd have a higher pressure with a leak.

domesticimportls

dude it makes perfect sense, if ur leaking boost then all the air isnt goin where it needs to so it thinks its not enough pressure to make watever ur tuned for so therefor sinse its letting pressure out the ecm ups the boost to make up for the lost pressure.

1badBlueberrySC

Give the car some time to learn it... my car did the same thing... with the charge pipes and the downpipe it will run like **** for about 100-200 miles and then you'll notice it run back like normal!

Stamina

The boost pressure reading is taken at the manifold. Leak or no leak, that gauge is telling you what pressure's going to the engine.

What you're saying would cause the ECU to up the use of the turbo to maintain boost pressure, but it wouldn't raise the boost pressure itself even higher. There's no reason for it to do that. It would also throw a code and be running rich since air the MAF told it it had isn't getting to the engine.

^QFT. Just give it time to figure things out again.

fredds-turbaltSS

I installed the piping a week ago yesturday, it seemed fine when i first installed it. iv put over 1000 miles since then, just drove from NY to VA and back this weekend

Terminator2

That Hahn intake usually causes positive long term fuel trims which will cause it to run rich at WOT. That will cause boging.

Ok. Someone with Hp Tuners needs to scan your car to see what is going on.

fredds-turbaltSS

Yeah, this weekend im having my tuner check it out, putting a catless DP in so. I really want to just get the software and learn how to tune myself, think that's a bad idea for a noob at tuning? Im no idiot and could probable be able to fig. it out with all the forums and stuff that are available.