Injector issue with 1990? - ZR-1 Net Registry Forums

XfireZ51 · 08-02-2017

If I am reading this right, ur cams are 238 intake/232 exhaust? Is this a 5.7L?
Pete could probably chime in, but bigger exhaust cams are not needed for a stock block LT5. And IMO, every motor is different and particularly one with non-stock cams will require custom tuning. I'm not suggesting that is the issue w ur ZR. Before tuning anything, u need to make certain that fuel, air, spark systems are all operating correctly.
Are ur secondary throttles removed or disabled?
Here's Pete's suggestion

http://www.zr1.net/forum/showthread....ight=Pete+cams

08-02-2017	#34
XfireZ51 Join Date: May 2007 Location: Chicagoland, IL Posts: 9,709	Re: Injector issue with 1990? If I am reading this right, ur cams are 238 intake/232 exhaust? Is this a 5.7L? Pete could probably chime in, but bigger exhaust cams are not needed for a stock block LT5. And IMO, every motor is different and particularly one with non-stock cams will require custom tuning. I'm not suggesting that is the issue w ur ZR. Before tuning anything, u need to make certain that fuel, air, spark systems are all operating correctly. Are ur secondary throttles removed or disabled? Here's Pete's suggestion http://www.zr1.net/forum/showthread....ight=Pete+cams __________________ [SIGPIC][/SIGPIC]Former Membership Chairman Former ZR-1 Registry - BOD 1972 Corvette 4speed base Coupe SOLD long time ago 1984 Corvette Z-51/4+3 SOLD 1992 Corvette ZR-1 Aqua/Gray #474 SOLD 1992 Corvette ZR-1 Black Rose/Cognac #458 2014 Honda VFR Interceptor DX