I recently bought a 2 owner 91 .
The only thing that seemed not stock/original for the first 100 miles I drove it was the 1-4 skip shift (CAGS) was disabled.
I thought they must have used the bypass plug.
I knew when I bought it that it ran rough and had fuel/ignition gremlins.
I installed a set of 16 all new FIC injectors, new coils, plugs and wires.
Car runs strong and very smooth now.
I bought a Chip from Marc Haibeck, went to install it today and when I pulled the cover off of ECM, to my surprise I noticed it had a Doug Rippie chip installed.
Reading Marc’s directions it ends up being a hybrid, where The DR plugs into the Haibeck and the Haibeck plugs into the ECM.
The DR did allow fans to run continuously, once I installed Haibeck they cycle on and off once it reaches temp.
The Haibeck does default to full power which I like.
1)My thought is that fan life would be longer with continued running after reaching temp instead of the constant cycling on and off endlessly ? Virtually any electric motor is going to be happier running constant.
2) Has anyone had this same situation or have extensive knowledge of both e DR CHIP and the Haibeck Chip ?
3) I have no idea if the DR added any torque or HP?
I installed the Haibeck Chip and because of rain coming in I was only able to run it in my shop for 10-15 minutes.
Upon startup the rpm’s Jump up high 1500-1800 for a couple seconds then The idle would settle down and be lower and smoother than the DR.
Any input here would help me tremendously
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1967 Corvette 427/L36 Goodwood Green Convertible NCRS Top Flight
1969 Z/28 DZ302 Fathom Green
1971 Corvette 454/LS5 Brands Hatch Green Coupe NCRS Top Flight
1980 Z/28 Coupe 383 Stroker 450hp Black/Black
1987 Corvette Z51 4+3 Coupe Bright Blue (SOLD)
1991 Corvette ZR-1 LT5 Bright Red/Red #141
1997 Viper GTS Hennessey Venom 700hp GTS Blue
2006 Ferrari F430 Gated 6M Rosso Corsa/Nero(SOLD)
2007 Corvette Z06 Victory Red
2009 Corvette ZR1 Cyber Gray 3ZR #1037
2011 Ferrari 458 Italia Grigio Silverstone/ Nero
2015 Corvette Coupe Z06/Z07/3LZ 7speed Torch Red/Jet Black
2015 Camaro Z/28 LS7 #854 Black/Black
2019 Corvette ZR1 Sebring Orange ZR1/ZLZ/ZTK/3ZR 7 speed #289