Turbo Lag Problem STS
Turbo Lag Problem STS Ok guys please no flamin
I went out to the 1/8 mile track tonight and this is the first time I have ever had this problem. Earlier this week I upgraded my turbo from the STS basic kit of a T-60/.81AR to a T-70/.96AR and well when the boost kicks in it hits hard and feels a whole lot stronger. But my problem is I dont even hit boost till right before I shift or am already in second gear. I dont understand how it has become so laggy, there are plenty of people running a t-70 like this with the sts kit. One other thing is I have a 13 pound spring in my wastegate but I am only seeing 10 pounds of boost at the gauge, that is all that I was seeing with the T-60 and the reason I switched is because I thought the 60 was too small.
my list of mods are
fuddle 4000 stall
forged motor with 317 heads and 8.9:1 CR
FMIC TRT Turbo
Meth Injection STS kit
#60 mototron injectors
Fuel Pump
Nelson performance tune
Shift Kit
The best I could get it to run was 7.6 @ 96MPH
I did that way back when I had a stock motor and #8
Please any thoughts on this will greatly help
I went out to the 1/8 mile track tonight and this is the first time I have ever had this problem. Earlier this week I upgraded my turbo from the STS basic kit of a T-60/.81AR to a T-70/.96AR and well when the boost kicks in it hits hard and feels a whole lot stronger. But my problem is I dont even hit boost till right before I shift or am already in second gear. I dont understand how it has become so laggy, there are plenty of people running a t-70 like this with the sts kit. One other thing is I have a 13 pound spring in my wastegate but I am only seeing 10 pounds of boost at the gauge, that is all that I was seeing with the T-60 and the reason I switched is because I thought the 60 was too small.
my list of mods are
fuddle 4000 stall
forged motor with 317 heads and 8.9:1 CR
FMIC TRT Turbo
Meth Injection STS kit
#60 mototron injectors
Fuel Pump
Nelson performance tune
Shift Kit
The best I could get it to run was 7.6 @ 96MPH
I did that way back when I had a stock motor and #8
Please any thoughts on this will greatly help
I do not have a 2-step but I really want one I think Harlen or what ever his name is, is almost done with new ones hes coming out with. Is there another brand that will work for our cars?
The stall was what Fuddle wanted me to go with, after he looked at my dino sheet with the T-60 I am sure the dino curve has changed. So I might need to contact him again.
As for the A/R what do you think I need to go with? I know when you upgrade to the t67 or t70 from sts it comes with the bigger A/R. Do you think I can use my .81 on this?
crap you know what now that I got some sleep I cant remember if it was a .86 and I went to a .91 or .81 and went to a .96 I will check on that
thanks for the input
The stall was what Fuddle wanted me to go with, after he looked at my dino sheet with the T-60 I am sure the dino curve has changed. So I might need to contact him again.
As for the A/R what do you think I need to go with? I know when you upgrade to the t67 or t70 from sts it comes with the bigger A/R. Do you think I can use my .81 on this?
crap you know what now that I got some sleep I cant remember if it was a .86 and I went to a .91 or .81 and went to a .96 I will check on that
thanks for the input
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Joined: Jun 2004
Posts: 1,501
Likes: 7
From: Ft. Irwin, California (But Virginia is home)
Originally Posted by turbo'd stang
Might also check for exhaust leaks.
Stall sounds WAAAAY too big, as does the a/r on your turbo. I'd suggest going with something like a 2800 stall and a .68 a/r, at least if you like having a fun car to drive on the street.
I'm running a .70 a/r on my R trim T76. My stall is way too loose and my 3.5 is too much gear for what my plans are for the car. I'm changing my stall so it's 800-1000 rpms tighter and my gears to 2.75's. PI rated my current stall at 3000 rpms. Under medium throttle it goes against the converter around 3500, at 0 psi around 4200 on the flash and at 10 psi around 5500 on the flash.
I'm running a .70 a/r on my R trim T76. My stall is way too loose and my 3.5 is too much gear for what my plans are for the car. I'm changing my stall so it's 800-1000 rpms tighter and my gears to 2.75's. PI rated my current stall at 3000 rpms. Under medium throttle it goes against the converter around 3500, at 0 psi around 4200 on the flash and at 10 psi around 5500 on the flash.
