Dan Baldwin Posted September 16, 2003 Share Posted September 16, 2003 That was my first ever run down the drag strip! Not too shabby, equalled Norm's best trap speed (way slower than his quickest ET)! I went with a friend from my time-trialling club. He's never beaten me on the road courses we go to (has been within a tenth, though) in his 260fwhp 2240 lb. Omni GLH-S. I think he figured to beat me at the drags. I won the first two rounds, but my trap speed was dropping as I was having fuel pressure issues, and he beat me on the 3rd and 4th runs (I still had a quicker ET on the 3rd run, SUCK reaction time, though). His best ET was 13.888 @ 107.56, best trap speed was 108.77 (14.097). Needless to say, he was having trouble hooking up:) Quote Link to comment Share on other sites More sharing options...
Guest NorCalZ Posted September 18, 2003 Share Posted September 18, 2003 thats really cool, congratulations. I went to shelby weekend at infineon and watched all the mustangs drag race and that was awesome but you ran faster than a lot of them. I wish I could have an engine set up like yours. BTW how high can one of those things rev. Do you lose revs for stroke? That would be cool if i could hit 7.5 grand with a stroker Quote Link to comment Share on other sites More sharing options...
Dan Baldwin Posted September 18, 2003 Author Share Posted September 18, 2003 General rule regarding strokers is that you lose revs with the square root of stroke. i.e., if you increase stroke 10%, your rev limit should go down on the order of the square root of (1/1.1). So, theoretically, your redline would be reduced by a factor of 0.95. So you've gained 10% more torque EVERYWHERE, and only lost 5% of your rev potential. Specifically regarding the L6 stroker, I limit mine to 7000 rpm. I am assured by a source at Nissan Motorsports that the 240SX pistons I'm using are regularly revved to 7500 in KA motors, which has a much longer stroke than a stroker L6. So they should be good for more than 7500 in a stroker L6. I'm also told that the stock L24 rods are good for 7500rpm in a stroker. I do not know what revs the forged diesel crank is good for, but I'm sure a properly prepared one could be made good for 7500. I have made a 7200 rpm "pill" for the MSD, but I'm not planning on using it anytime soon. I think I'm being fairly conservative at 7000, I don't really feel the need to push it beyond that at the moment. Quote Link to comment Share on other sites More sharing options...
Guest nikko74z Posted September 19, 2003 Share Posted September 19, 2003 What's your set up? Are you running SU's? What gear or tranny are you running? Quote Link to comment Share on other sites More sharing options...
Dan Baldwin Posted September 19, 2003 Author Share Posted September 19, 2003 setup in brief: N42 bored and stroked to 3.1 liters N42 head ported and cammed (.550"/~305deg) by Sunbelt in Atlanta 11:1 CR, 93 octane pump fuel 3x2 45mm OER Racing carbs, 38 or 39mm venturis '84 truck 5-spd (3.321/1.902/1.308/1.0/0.833) 3.70 R200 LSD ('87 turbo) dyno plot here if the image doesn't show up: http://www.classiczcars.com/photopost/showphoto.php?photo=6881&size=big&password=&sort=7&thecat=500 breakup above 6000 due to being forced to use points temporarily Quote Link to comment Share on other sites More sharing options...
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