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

91 autocross convert

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Old Aug 10, 2009 | 08:32 PM
  #1  
danvan1's Avatar
danvan1
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From: pg bc
Default 91 autocross convert

just a few questions about converting my car to a carb setup
motor will be a forged internal 383 stroker with aprox 10.5 to 1 compression internaly ballanced, hyd roller cam fluid damper and lightweight flywheel and clutch no ac or airpump will be using the tpsi delete idlers if i have to or can i just reroute the belt??
the big question is hood clearance with a stock hood intake will be a rpm airgap carb will be a holly
any input will be apprecated
tks
dan
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Old Aug 10, 2009 | 08:38 PM
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you can buy a standard water pump like for an 82' vette, and put a shorter belt on. That is what people have been doing instead of paying $300+ for pulley setups.
old style WP and belt probably still less than 200, and cleaner engine bay, and less weight.

don't know about the intake, but I think it has like 9+ inches maybe (not sure)
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Old Aug 10, 2009 | 09:04 PM
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From: pg bc
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thanks for the info
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Old Aug 10, 2009 | 11:11 PM
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From: pg bc
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i think my car has a t56 trans is it worth changeing to a zf ???
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Old Aug 11, 2009 | 12:05 AM
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Originally Posted by danvan1
i think my car has a t56 trans is it worth changeing to a zf ???
What? C4's did not come with T56's from the factory. Did someone swap one in? I highly doubt it. If it really does have a T56, I wouldn't swap it for a ZF, but that's just me.

I'll trade you a ZF if you want to swap, though.
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Old Aug 11, 2009 | 12:12 AM
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You are going straight for SSM... that is gonna be tough. (I know, I raced a Porsche this weekend with more money in his 4 shocks than I have in my entire car...)
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Old Aug 11, 2009 | 02:19 AM
  #7  
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From: pg bc
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the shifter in my 96 dosent have a reverse lock out {on the 91 im going to auto cross you have to pullup a detent under the shift **** to get reverse } so i thought it was a diferent trans

up here in canada we race with a group called quadc [canadian counsel of corvette clubs ] when done this car will be superstock so its anything goes but we only race against vetes
tks
dan
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