Tag: C4

ZF Transmission Recommended

The 6 speed manual transmission in 1989-1996 Corvettes was produced by German automotive components company ZF Industries http://www.zf-group.de/. The Corvette Owners Manual clearly states that this transmission does not need service, but the transmission fluid level should only be checked and kept full. A bit of research confirmed that ZF does not share this recommendation […] More »

  Comments | By - April 21, 2010

Addition Bose Amp Fix

EVERYTHING IN THE OTHER BOSE AMP FIX IS CORRECT INFO, BUT EVERYBODY THINKS IT\’S ONLY THE TWO 820UF CAPS THAT GO BAD BECAUSE THEY ARE THE BIGGEST ONES ON THE BOARD. IN REALITY THERE ARE SEVERAL ELECTROLIC CAPACITORS THAT CAN GO BAD ON THESE CARDS. AS ON ALL ELECTRONIC EQUIPTMENT ELECTROLIC CAPS TEND TO DRY […] More »

  Comments | By - April 21, 2010

C4 Throttle Body Coolant By-Pass

This is just another view of this procedure that was published 6/15/01. Horse power can be increased by cooling the air that passes through the throttle body, My ’93 routes hot coolant through the throttle body to prevent the valve from freezing. The hot coolant also heats the air in the summer months. So, if […] More »

  Comments | By - April 21, 2010

Free Fuel Pressure Increase Modification

This modification was performed on an 87 Vette with approx. 100K on the odometer, a gutted MAF, a K & N air filter, Jacobs 8.5mm plugs wires and Delco sparks that are 2 heat ranges hotter than stock. I tried this modification and my fuel pressure went from 30# to 40# with only this fifteen […] More »

  Comments | By - April 21, 2010

How To Replace a CS-130 Alternator with a CS-144

This subject comes up often in the Tech section so I decided to share my experience as a tech tip. The CS-130 alternator used in many L98 C4 Vettes is famous for its abily to selfdestruct unexpectedly. Many have dreamed about better alt. There is one: CS-144 used in ZR-1\’s (124Amp) and in the very […] More »

  Comments | By - April 21, 2010

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