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24x / stealthram no power?

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Old Sep 27, 2017 | 12:22 PM
  #1  
19irocz85's Avatar
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From: Wappingers falls ny
Car: 1985 iroc z
Engine: Crate 350
Transmission: T56
Axle/Gears: 3:24
24x / stealthram no power?

I finialy got my 24x conversion done and a holley stealth ram on, the car is tuned( my tuner screwed up i believe) the car runs ok but has no low end torque at all, less then with the factory tpi, it wont even break the tires free, it has a hard time getting to 2500 rpm but once its there and past its a rocket, it also used a full tank of gas in 60 miles! What the hell is going on?! The car has a 92 crate 350 with l89 heads on it, it should be making decent power, is it my engine or do i need to get it tuned again? Also, the tuner didnt delete any dtc's it has 12 emission related codes along with maf code that the car doesnt even have, i dont know what else to do any help/ advice would be greatly apprieciated!
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Old Sep 27, 2017 | 12:59 PM
  #2  
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From: Bright, IN
Car: '86 Bird, 96 ImpalaSS, 98 C1500XCab
Engine: LG4, LT1, L31
Transmission: 700R4, 4L60E, 4L60E
Axle/Gears: 3.73 Tors, 4.88 spool, 3.73 Eaton
Re: 24x / stealthram no power?

Originally Posted by 19irocz85
....( my tuner screwed up i believe) .... used a full tank of gas in 60 miles! ...
Yes, I believe so too!
I believe you've answered your own question; it needs a proper tune before you run it any more at all. Hopefully you've not already destroyed the ring seal by washing down the cylinder walls with excess fuel.
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Old Sep 27, 2017 | 02:07 PM
  #3  
ULTM8Z's Avatar
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Re: 24x / stealthram no power?

Yeah sounds like a tuning issue for sure.

What ECM are you running?
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Old Sep 27, 2017 | 02:15 PM
  #4  
19irocz85's Avatar
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From: Wappingers falls ny
Car: 1985 iroc z
Engine: Crate 350
Transmission: T56
Axle/Gears: 3:24
Re: 24x / stealthram no power?

0411 out of an 01 escilade
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Old Sep 27, 2017 | 05:28 PM
  #5  
Fast355's Avatar
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From: Hurst, Texas
Car: 1983 G20 Chevy
Engine: 305 TPI
Transmission: 4L60
Axle/Gears: 14 bolt with 3.07 gears
Re: 24x / stealthram no power?

Tuner should have gone to a custom MAP only operating system or you need to add a MAF in. I prefer staying with the MAF because they work really well and the driveability is better. It sounds like the tuner screwed up. I bet if I were to look at the tune I would find numerous things wrong with it.
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Old Sep 27, 2017 | 06:31 PM
  #6  
19irocz85's Avatar
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From: Wappingers falls ny
Car: 1985 iroc z
Engine: Crate 350
Transmission: T56
Axle/Gears: 3:24
Re: 24x / stealthram no power?

I wouldnt be suprised, its definately not right thats for sure. Well i guess back to the tuner it is, its a challange to find a reputable place where i am if you can find one at all
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