Supercharged saleen cold start trouble

[noodle]

I have a 2008 saleen red flag with 2600 miles on it.

Mods are:
3.4 pulley producing 9 lbs boost
Kooks long tube headers h pipe with cats
Vacumm line upgrade kit
Kenne bell BAP
JLT oil separator
HTO spark plugs
60lb injector
Stock saleen 98mm mass air
Sct tuner

All work done professional by a local shop to me.
Car was dynoed and maxxed out 39lbs injectors.
So i bought 60's and went back. Re dyno tuned the car and air fuel came out perfect he said.
Put down 460/440
Now when i start the car it does not run right until completely warmed up.
If the needle on temp gauge is half way to middle and you start to drive the car is bogs spits sputters and runs horrible right around 1500 to 2,000 rpms.
Tuner said its too rich and has to do with the cold table in the tune.

Has anyone experienced this and any suggestions?!?

 

[zuritausmc]

I have a 2008 saleen red flag with 2600 miles on it.

Mods are:
3.4 pulley producing 9 lbs boost
Kooks long tube headers h pipe with cats
Vacumm line upgrade kit
Kenne bell BAP
JLT oil separator
HTO spark plugs
60lb injector
Stock saleen 98mm mass air
Sct tuner

All work done professional by a local shop to me.
Car was dynoed and maxxed out 39lbs injectors.
So i bought 60's and went back. Re dyno tuned the car and air fuel came out perfect he said.
Put down 460/440
Now when i start the car it does not run right until completely warmed up.
If the needle on temp gauge is half way to middle and you start to drive the car is bogs spits sputters and runs horrible right around 1500 to 2,000 rpms.
Tuner said its too rich and has to do with the cold table in the tune.

Has anyone experienced this and any suggestions?!?

Did it do that before the LTs or did you buy the car with them already on? Mine did that after I installed the LTs. Something about the altered distance of the o2 sensor. Never did get it quite right, but I would run really rich until it warmed up for a few too.

 

[noodle]

Ya i had the longtubes installed. Never drove the car much before i did the work. Bought in end of january with 1870 miles. But no it didnt have an issue previous.

 

[Marc s]

cold drivability issues with 60's are common. It can be sorted out with a good dyno tune though.

 

[zuritausmc]

cold drivability issues with 60's are common. It can be sorted out with a good dyno tune though.

This too. Although I did have 60s before the lts and never had an issue.

 

[noodle]

Who does everyone use for tuners? Im in CT

Some people are telling me 60's on a "stock" motor are too big.

 

[NjsGT]

Who does everyone use for tuners? Im in CT

www.efilogics.com He tuned my car last year, he knows his shit.... Id go back to him but he is kidna hard to get in touch with... Call talk to Pete and set up a day to tune

Some people are telling me 60's on a "stock" motor are too big.

IMHO, you didnt need them.... 39's can support your mods and power numbers..... Are you running a BAP or gt500 pumps?

 

[noodle]

Efi logics did tune it. Chris said i maxxed out the 39's and we need 60's. And yes i have a kenne bell BAP

 

[06Saleen E]

I have a 2008 saleen red flag with 2600 miles on it.

Mods are:
3.4 pulley producing 9 lbs boost
Kooks long tube headers h pipe with cats
Vacumm line upgrade kit
Kenne bell BAP
JLT oil separator
HTO spark plugs
60lb injector
Stock saleen 98mm mass air
Sct tuner

All work done professional by a local shop to me.
Car was dynoed and maxxed out 39lbs injectors.
So i bought 60's and went back. Re dyno tuned the car and air fuel came out perfect he said.
Put down 460/440
Now when i start the car it does not run right until completely warmed up.
If the needle on temp gauge is half way to middle and you start to drive the car is bogs spits sputters and runs horrible right around 1500 to 2,000 rpms.
Tuner said its too rich and has to do with the cold table in the tune.

Has anyone experienced this and any suggestions?!?

Man,

I have the same issue with my Extreme and I have to let it warm longer than before, but I guess I'm a bit patient and it doesn't bother me. However if I see my tuner I'll ask him an dlet you know.

 

[NjsGT]

Efi logics did tune it. Chris said i maxxed out the 39's and we need 60's. And yes i have a kenne bell BAP

Does chris know your having this probelm?

 

[noodle]

Man,

I have the same issue with my Extreme and I have to let it warm longer than before, but I guess I'm a bit patient and it doesn't bother me. However if I see my tuner I'll ask him an dlet you know.

Thanks. It bothers me and i am just trying to figure out why. You look pretty stupid with a $40,000 saleen and you have to wait till its warm to leave a car show.

 

[noodle]

Does chris know your having this probelm?

Yes he does. He said i can bring it back to him and he'd look at it, but said he has an 05 s281 sc doing the samething. Im trying to figure out the issue without wasting his time and a bunch of my money. He said he has put saleen blowers on on a s197 and not seen the issue. Could it be something in the saleen ECU? Or the tune? I had a 2005 gt with a whipple. 460/440 same numbers as my saleen with 39lb injectors and a ford tune with stock exhaust manifolds. Cat ran awesome. Never an isssue.

Chris is by far an amazing tuner and a very knowledable guy in my eyes. I just wanted to research the issue before bring it back, maybe dig up some answers

 

[frarmar]

Mine stumbles if you give it too much throttle when it's cold. Wideband goes lean. It has done it from day one. If you take it easy until it's warmed up a bit it's fine.

Yours may be worse or a different issue altogether if it's bothering you this much, because with mine it is no issue at all to keep it from stumbling. I have heard it is a transient fuel issue in the tune.

 

[SherrodMustang]

I had alot of trouble with cold starts with my 60lb injectors. There was alot of times I had to pull the plugs and clean them off to get the car to start. Upgraded to the ID1000'S and e85 and so far it starts almost like stock.

 

[Swarzkopf]

ne stumbles if you give it too much throttle when it's cold. Wideband goes lean. It has done it from day one. If you take it easy until it's warmed up a bit it's fine.

Yep- I had the exact same cold start issues with my Paxton blown '05 GT with 39lb injectors- I was also going lean around 1500-2000 RPM during the warm up period- I added some fuel to my cold start fuel table and it helped, then fattened up the MAF transfer a bit in the range it was going lean and it's resolved completely now.

 

[Vapour Trails]

I had the same problem when I temporarily switched to GT500 injectors, it's tune issue for sure.

 

[Starfire]

I had that too, ended up changing out the MAF (it was the Saleen one on the extreme intake) and a retune, solved it 95%, still a tiny bit of stutter at times but it's so minor I don't care.

I have 39's though

 

[Kraftsman]

I have the same problem, but mine didnt start until I ran 110 leaded race gas at the track. I was thinking it was my o2's. What do you guys think?

 

[LTHLCHRG]

Had the same issue years ago. JDM know that system inside out,and can email you a tune to fix the problem.

 

[Bestangyet 07]

Reading the word LEAN makes me want to call Brenspeed to have this issue resolved on mine. I always assumed it was a rich condition or a throttle angle problem. As long as a left turn is not required i don't care that much. I just baby it for the first two miles or so and it is fine. Thank god I have never hammered on it when it was cold. Still on the 39's with no long tubes.