C4 ZR-1 Discussion General ZR-1 Corvette Discussion, LT5 Corvette Technical Info, Performance Upgrades, Suspension Setup for Street or Track

92 ZR-1 on the dyno today

Old 05-24-2019, 11:19 AM
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St. Jude Donor '05

Originally Posted by DDSLT5 View Post
It`s all in the tuning. My 415 has big valves, stage III cams on the intake and exhaust. I instructed Marc to ensure it would idle like stock. It idles at 750 rpm all day long and has a seductive thump thump at idle. It can be done - just choose your tuner wisely!
x2 dont use the stock got 415 cubes they need air, lots of it. Need to hang the valve open longer period. It wont be like your old Gen 1
The stocker runs out of breath sooner than most think, stick them in a 415 it will make things worse no matter what that tach says.

Last edited by cuisinartvette; 05-24-2019 at 11:19 AM.
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