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Kirkham Motorsports

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Old 09-26-2009, 06:17 PM
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Thanks Guys. I think Rusty Bob described my "short shifting" in a way I like: "and that is easier on the power train so you are doing nothing wrong you are just playing it safe with the power train and thats not a bad thing"

It wasn't long after I joined this forum that I started to wonder just how much performance I could get from my car. From the stories I read, I envisioned all CC members winding out to 6000+ at every stoplight....LOL.

And some of the stories....spinning tires at 75 mph and such.....well, I definately don't have that kind of Hp under the hood......er..maybe if I was in 2nd at the time..... Crane did a computer analysis of my engine and got 480 Hp. I doubt it's that high as their software probably assumes perfect ignition timing and perfect fuel delivery. None the less, I am amazed at the number of people here who claim over 600 hp on the dyno.

Unfortunately, where I live, there is no dyno available. Nor is there much expertise around from which I can learn. So I'm on my own, learning as I go, but it's slow. Finsihed the car in 1996 and still only ahve a little over 5000 miles on it. (We have winter here).

My biggest hurdle is test runs on public roads.....too much darned traffic, and now that Sunday Shopping has been legalized, even mall parking lots are out (not to mention the police might show up).

I guess I'll stick with shifting by feel. It seems to work fine for me, and certainly from a rolling 20 mph in 2nd, I have no trouble with hard acceleration, although I watch it a bit on account of my BFG T/As. Honestly, 12" of rubber on each back tire and a limited slip diff, it just wants to go faster the more I push it. Wheelspin.......I've never done a burn-out yet....just taking it easy I suppose.

Anthony and Patrick have good points, and I suspect I could work out shift points based on a theoretical power curve based on cam specs, but as I mentioned before, I don't look at the tach much when I am test driving.

All in all, I didnt' really mean to ask another question with this thread. I was trying to explain why I asked this before in another thread. Basically, I don't do things like the test charts, so I was wondering if I was really doing something wrong. Or more to the point, if I tried it, would I screw it up really bad based on the enormous torque/power at the rear wheels with full revs in first gear.

Thanks again.

ps: I've watched as many Cobra runs as I could find on Youtube,etc, and to tell the truth, not very many looked (or sounded) much different than what I do. A few did, but some of those "few" also caused an "out-of-control" situation.

................and I really like that one with the Cobra beating the Viper....
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Old 09-27-2009, 06:16 AM
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I worried about shift points when I drag raced,then I had a tach that lit when the shift point hit so I could concentrate down the 1/4.Street driving/racing,depends on what is sitting beside me,and the mood I am in.
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