I have a 99FRC that had a LPE top end kit installed at 15k miles in 2002. The car had 383hp and 360tq on Lingenfelters dyno at that time.
Just installed a 112 IC Maggie and had the car re tuned a couple of weeks ago. Although I was not concerned about having a 500+ RWHP engine , I guess with a starting point of about 383 hp I kind of expected close to that. Was not real excited when the tuner said he was able to get 428 hp and 398 tq ? Tuner said with the ambient air temp at 92 to 95 which made the IAT 130+ , these two factors limited the total timing to 22 degrees , which he felt contributed to the lower than expected numbers.
Guess I should also add the Maggie has the stock 3.4 pulley and the blower was fairly consistent at 6.4. to 6.95 lbs of boost. AFR stayed at a fairly consistent 11.4 all the way to 6300rpm.
The cam installed by Lingenfelter is their GT2 cam, although it may not be a perfect blower cam I can't imagine that is a problem.
The car does idle and runs pretty good , kills the tires in 1st gear , and as expected with a Maggie runs as stock during regular driving.
Guess the question is , does this appear to be a tuning problem? Also both dyno's are dynojets. Car currently has 39k miles
What size pulley did you change to? Before going on the Dyno the tuner said he expected to have to go to a 3.1. or a 3.2 to get near 7lbs of boost, considering I have a cam headers and full exhaust on the car. Was also surprised the engine had near 7 lbs. Do you need to run alky injection for 8.5 lbs of boost ?
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Maggie tune question
