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

is there a TB bypass to do on a 90 l98

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Old 08-20-2002, 07:23 PM
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guywade
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Default is there a TB bypass to do on a 90 l98

can the TB bypass be done on a 90 L98??
Old 08-20-2002, 07:46 PM
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AS84
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Default Re: is there a TB bypass to do on a 90 l98 (guywade)

yup- same technique as all the others...just unhook the tb from the coolant lines and connect the coolant lines together with a barbed fitting....which you can get at any hardware store.
Old 08-20-2002, 08:18 PM
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vader86
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Default Re: is there a TB bypass to do on a 90 l98 (guywade)

:yesnod: :yesnod: :yesnod:
Old 08-20-2002, 08:48 PM
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jackdaroofer
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Default Re: is there a TB bypass to do on a 90 l98 (vader86)

Probably not worth the effort!

Very little coolant contacts the TB

Plenum gets plenty warm from underhood heat, so reducing a very little bit of heat from the body of the TB is probably useless

I have never seen anybody seriously claim a legitimate power increase

Jack
Old 08-21-2002, 09:34 AM
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Default Re: is there a TB bypass to do on a 90 l98 (jackdaroofer)

Someone from one of the F-body boards posted before and after dyno results showing a 6 hp gain after the throttle body bypass. :yesnod: . I did mine recently and I haven't been back to the track yet, but I can tell you my throttle body is much cooler to the touch now then before the bypass. Yes, it still gets heat soaked by the motor, but before you coudn't even touch the damn thing when the car was warmed up and now I can lay my hand on it no problem.

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