Forced Induction Superchargers | Turbochargers | Intercoolers

sts turbo lag?

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Old Oct 27, 2008 | 07:59 PM
  #21  
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i'm also running 42lb. injectors
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Old Oct 27, 2008 | 08:05 PM
  #22  
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I see 12 psi in first gear six speed 3.73 gears. I see full boost at 3.8k and no drop to 7k. I dont understand the dip in tq in my dyno but the car on the street never noses over in the upper power band.
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Old Oct 27, 2008 | 08:16 PM
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Originally Posted by hawk584
i'm also running 42lb. injectors
At the PSI you are running, your injectors should be fine, again discuss your set up with a reputable LT1 turbo tuner (other than the one who tuned your car). What is happening to your car is abnormal for sure.
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Old Oct 27, 2008 | 08:45 PM
  #24  
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driving the car and playing isn't going to hurt the motor or turbo is it?
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Old Oct 27, 2008 | 08:57 PM
  #25  
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Based on your A/F ratio on the dyno you provided, you should be ok. I wouldn't be going to the track with it or racing it for money until the issue you have is addressed. I don't see a problem with driving around and hurting the car.
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Old Oct 27, 2008 | 09:09 PM
  #26  
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good deal. i dont have the $$ what so ever for any kind of repairs for another 3years. it seams to drive fine. to late about the track. spun through 1,2&3rd. about 115 at the 1/4mile line. best time 13.9 on street tires, spun the pilot bearing, lost 5th gear and punctured the rear passenger side tire. new D&D trans w/viper upgrade going in tomorrow with a custom brass bushing from Eagle cranks and cheep tires on order... i'm freaking done driving till next year. it's either park her and not drive for a long time or do the somewhat smarter thing and sell it. it's getting way to expensive for this Air Force guy's wallet
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Old Oct 27, 2008 | 09:56 PM
  #27  
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Originally Posted by hawk584
good deal. i dont have the $$ what so ever for any kind of repairs for another 3years. it seams to drive fine. to late about the track. spun through 1,2&3rd. about 115 at the 1/4mile line. best time 13.9 on street tires, spun the pilot bearing, lost 5th gear and punctured the rear passenger side tire. new D&D trans w/viper upgrade going in tomorrow with a custom brass bushing from Eagle cranks and cheep tires on order... i'm freaking done driving till next year. it's either park her and not drive for a long time or do the somewhat smarter thing and sell it. it's getting way to expensive for this Air Force guy's wallet
That's harsh man! I would be pissed with just the power drop at 4.7K+. I wouldn't sell it man, you are too deeply involved with it plus the car has a super sleeper "Oh look, it's a 14 sec LT1, those are cows..." vibe and has potential to run 11's with some tires and all the bugs worked out. The car looks bad *** and needs minor repairs, the glass is more than half full.
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Old Oct 27, 2008 | 10:08 PM
  #28  
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i'll have to see how things pan out over winter...
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Old Oct 28, 2008 | 07:56 AM
  #29  
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My STS kit just put down 425hp/446tq on the first run, and 415hp/451tq on the second run. This was with 4psi and a messed up pressure switch, so no higher boost or meth.
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Old Oct 28, 2008 | 08:02 AM
  #30  
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shawn is that with stock injectors? Those are nice numbers for 4lbs.
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Old Oct 28, 2008 | 09:49 AM
  #31  
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100% stock everything.
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Old Oct 28, 2008 | 11:32 PM
  #32  
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the lag isnt bad UNLESS you have exhaust leaks!
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Old Oct 29, 2008 | 02:19 AM
  #33  
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i just had my s-10 w/ an lq4 and rear mount 76mm. dynoed today
@ 5lbs it made 471hp/471tq

if you step on it it wont have lag if your around 2600 or up anything below it and its laggy, but still much faster than it was naturally aspirated.

props to nick @ newtech

Last edited by extremetoy; Oct 29, 2008 at 02:55 AM.
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Old Oct 30, 2008 | 02:35 PM
  #34  
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Originally Posted by GM WORLD CLASS
ok someone give me the truth about sts turbo system. noticable lag? or just b.s. hassle.
The trick with STS is keeping the heat so, pull the exhaust down, keep your shorty headers(get them ported tho), Paint the exhaust with black high temp paint(a few coats), let dry, Then wrap exhaust turbo to headers, you can wrap twice but that just gonna be a pain in the ***...no i promise you will see a jump and less lag. Good luck.
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