Need thoughts about his engine setup
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Joined: Feb 2005
Posts: 56
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From: Leavenworth KS
Need thoughts about his engine setup
I am new to this forum but I am the orginal owner of a 89 Vette. Back in 91 I had some work done to the engine. Here is what was done and I want to get any thoughts on what was done. Given this was back in 91 and some things were not available at the time as they are now.
1989 L98
Stock heads that were flow tested and a 3 angle value job done, there were other things but I can not remember what else was done to the heads, I know some performance improvements but nothing crazy.
TPIS Comp Roller Cam with 210/218 at .50
Roller Lifters, hydraulic
Comp Cams Roller Rockers: (1.6 ratio)
Lingenfelter (LPE) intake manifold
LPE runners, plenum, stock injectors, and throttle body: (52MM)
Accel HEI Super Coil on distributor
LPE Ceramic Coated headers:
High flow cat and true dual pipe mufflers, not only one pipe open
K&N Hi-Flo air filter with breather lid cut out
Air Foil in throttle body
373 rear end
Higher lock up converter
Custom chip for my engine, not one bought but done right there with a guy who could right/change code.
I am also looking for anyone who has the Lingenfelter setup with the Runners and Plenum and had them polished. I have not meet any one who has this mod done to their car.
I would be interested any thoughts on the CAM and its numbers? Thanks, Sean
1989 L98
Stock heads that were flow tested and a 3 angle value job done, there were other things but I can not remember what else was done to the heads, I know some performance improvements but nothing crazy.
TPIS Comp Roller Cam with 210/218 at .50
Roller Lifters, hydraulic
Comp Cams Roller Rockers: (1.6 ratio)
Lingenfelter (LPE) intake manifold
LPE runners, plenum, stock injectors, and throttle body: (52MM)
Accel HEI Super Coil on distributor
LPE Ceramic Coated headers:
High flow cat and true dual pipe mufflers, not only one pipe open
K&N Hi-Flo air filter with breather lid cut out
Air Foil in throttle body
373 rear end
Higher lock up converter
Custom chip for my engine, not one bought but done right there with a guy who could right/change code.
I am also looking for anyone who has the Lingenfelter setup with the Runners and Plenum and had them polished. I have not meet any one who has this mod done to their car.
I would be interested any thoughts on the CAM and its numbers? Thanks, Sean
Pro
Joined: Dec 2002
Posts: 704
Likes: 16
From: Dallas Texas
The cam looks small to me...probably was a good cam w/TPIS intake. If you're running the Accell/Ling. big plenum intake, you could probably use a little more cam. What are the flow numbers on the heads?
Thread Starter
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Joined: Feb 2005
Posts: 56
Likes: 0
From: Leavenworth KS
I do not know the flow numbers (the heads were worked on by a guy kin to Bo Laws (sp?). The intake came from LPE (do not know who supplied them the manifold) and I do not have the box type plenum the one I have looks standard but was enlarged/modified by LPE. I did take the car to a chasis dyno and the Torque high # was 332 at about 3400 RPM, but the horsepower was low # 258. I did not have a high flow cat on the car at the time and have not gone back and tested the car with the high flow cat to see if it increased the horsepower. I think the stock car torque came with around 240 or so, I increased the torque by almost a 100 points. The numbers were compared to a 97 they had done with numbers of 291 for torque and 288 for horsepower.
