C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

how much power will i gain....

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Old Aug 8, 2002 | 01:56 AM
  #1  
blackonblackLT1's Avatar
blackonblackLT1
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Default how much power will i gain....

Hey guys i was wondering how much power i will gain with an 86 vette if i install 58" throttle body and port match it,and also install a mass air flow sensor??

MY mods now are an....

Adjustable fuel pressure reg.
K&N air filter
low temp. thermostat 160
high perf. pulleys
straight through exhaust
B&B cat back
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Old Aug 8, 2002 | 02:24 AM
  #2  
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Default Re: how much power will i gain.... (blackonblackLT1)

a grand total of 0hp

58mm is worthless on a 350 TPI
Removing your current MAF for a new one is pointless unless yours is broken. But removing the screens in your current MAF is a good idea and might yield a few hp.
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Old Aug 8, 2002 | 02:54 AM
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Default Re: how much power will i gain.... (vader86)

a grand total of 0hp

58mm is worthless on a 350 TPI
Removing your current MAF for a new one is pointless unless yours is broken. But removing the screens in your current MAF is a good idea and might yield a few hp.
What he said...58 would only do something if you had new heads, cam and headers, somethin thats gunna need alot more air flow.
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Old Aug 8, 2002 | 10:54 AM
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Default Re: how much power will i gain.... (blackonblackLT1)

Well I've got a dyno proven 0 gain with a 52mm TB. I'm sure the 58 would at least double that gain.
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Old Aug 8, 2002 | 11:58 AM
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Default Re: how much power will i gain.... (Nathan Plemons)

install 58" throttle body
You'd probably see quite a power loss if you installed a 58 inch throttle body, since you'd need to remove the hood and the almost 5 foot-wide throttle body would give you too much air drag (j/k). :D :D :D

Actually, unless you have modified the cams, heads, and headers, your car won't need so much air that even a 52-mm throttle body can provide. Other bottlenecks are limiting your power, not the throttle body.


[Modified by MTVette, 11:05 AM 8/8/2002]
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