virus projects? - ZR-1 Net Registry Forums

Corvette95 · 03-27-2020

from the action center...I spoke with Jim Ingle recently who was a Corvette Powertrain Engineer and did a lot of the develoment testing on the ZR-1s. Most of the GM performance figures you see for the various years on the ZR-1 were established by him. I asked him about the use of steel half shafts and why the switch to aluminum. This is what he had to say:

"We had difficulties staying in the EPA weight class we needed to be in to avoid paying gas guzzler tax. Of course, this was prompted by crash and bumper standards that resulted in weight increases. The aluminum axles were part of the weight reductions used." -- Jim Ingle

The half-shaft was changed early in the 1990 model year starting with VIN # 800621.

03-27-2020	#13
Corvette95 Join Date: Jan 2006 Location: Decatur, AL Posts: 1,119	Re: virus projects? from the action center...I spoke with Jim Ingle recently who was a Corvette Powertrain Engineer and did a lot of the develoment testing on the ZR-1s. Most of the GM performance figures you see for the various years on the ZR-1 were established by him. I asked him about the use of steel half shafts and why the switch to aluminum. This is what he had to say: "We had difficulties staying in the EPA weight class we needed to be in to avoid paying gas guzzler tax. Of course, this was prompted by crash and bumper standards that resulted in weight increases. The aluminum axles were part of the weight reductions used." -- Jim Ingle The half-shaft was changed early in the 1990 model year starting with VIN # 800621. __________________ Corvette95 Registry and Forum (************) 1989 C4 Conv Wht/Gry Auto Hardtop Top Flight SOLD 1995 C4 Coupe Purple/Blk 6 Speed 1989 C4 Conv Wht/Red Auto SOLD 1996 C4 Conv Black/Tan Auto SOLD 1994 C4 Coupe Wht/Blk SOLD 1995 C4 ZR-1 White/Gry #278 Dual Dunn Head SOLD 1986 C4 Coupe Black/Red 4+3 SOLD 1990 C4 ZR-1 Red/Red #0454 Last edited by Corvette95; 03-27-2020 at 08:29 PM.*