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  1. J

    SHM stroker kit, results... help.

    Manny's only thought was that it could be just a bad head/cam combination. not much input other than that. Yes, Dan Soprano, if this were a 2v with these numbers n/a, i would be quite the happy camper. it is a 4v, however, leading to my quandary. 69fb00GT, what do you mean by helping to...
  2. J

    SHM stroker kit, results... help.

    what would cause the a/f to need to be that rich though? that is what i still dont understand, and SHM doesnt have an answer for it either. the timing is at stock. when they tried to advance it, it started detonating again. SHM recommended the stroker and cam combination, and when i told them...
  3. J

    SHM stroker kit, results... help.

    are you referring to the A/F ratio being 11.0:1 or the compression ratio? either way, yea, i would have expected leaning the compression ratio out would give it more power. that is the general rule of thumb. that was the first thing they tried to do when tuning it, and it lost power and...
  4. J

    SHM stroker kit, results... help.

    yea, leaning out is what i would have expected as well. but every time they made it more rich, it got more power. it didnt want to be lean at all. (much to the shock of everyone in the shop). the CR as advertised by SHM should be between 10.25 and 10.5:1. however, oddly, the Manley...
  5. J

    SHM stroker kit, results... help.

    Just got off the phone with SHM tech support. this guy, (contrary to Chris in the sales dept.), told me to expect between 310-330rwhp with my setup. He said the odd thing in my case was the fact that the A/F mix was 11.4 (as they usually run 13:1 on their cars) and that my torque was lower than...
  6. J

    SHM stroker kit, results... help.

    HPP Racing did the tune. www.hppracing.com. I cant find a single negative thing about them on the boards. as for the guy that assembled the engine, it was a middle-aged guy who has a good name and has been in the business for years. the car runs fine, no misfiring or bucking or anything...
  7. J

    SHM stroker kit, results... help.

    First, I appreciate all the input and the numbers. irregardless of the numbers, the curves are good, and the car runs great. that is the upside. the downside is, like mogs01gt, i know a lot of people who have way more power with similar and sometimes fewer mods. a friend of mine has around...
  8. J

    SHM stroker kit, results... help.

    see, i had heard that too... in this case, i gained 40 rwhp, but only 31 rw torque... is that right?
  9. J

    SHM stroker kit, results... help.

    i have a 98 cobra with an SHM 5.0 stroker kit and SHM stage 1 cams. The stock motor threw a rod and broke several other things after approx. 166,000 miles. Damn good motor. puttin around 280hp to the ground to the day it died. so, time for rebuild comes... I went with SHM because of the name...
  10. J

    When I drive too long at 4-5000 RPM, My 4V...

    had that problem once i once got a check engine light while flying down the highway (not racing or anything :rlaugh: ) and the check engine light came on. every few days or so it would turn back off, and then repeat the process, off and on. i had the code checked, turned out it was the IMRC...
  11. J

    highest mileage on a four cam Cobra??

    i use royal purple, change it regularly, and it doesnt use much at all.
  12. J

    highest mileage on a four cam Cobra??

    155,000 i have a black 1998 Cobra, only bolt-ons, stock engine. whats your mileage, or the highest you have heard of?
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