Originally Posted by
imrob
i run oddoneels speed blend which is a 30 percentage. aS MY hEAD CLEARACNCE AND STUFF I DONT HAVE THAT CAUSE IM NOT AT HOME JUST YET. but i have the 3.3 tmaxx which is on 5 gallons and still strong. i have the 427 i think it the losi one but it got a big red cooling head on it and i have a mach 2 .28. most of my guy at my track run the go .25 or the werks. I think we have two big straghit on the two track i go too. i had some guy almost catch me on the strait running a werks not sure which one but it caused us to fight in the corner on the second turn after it tell he jumped the track the go guys past me right up on th stragiht with the 427. but they were modded from someone. so this year i dont want to get past on a straight. so i got this mach 2 .28 for 50 buck and i can push the sleve out just buy turning the fly so it a good deal but after watching you video on the werks and the os .25 i dont thinks it gonna have the balls to pass them on the straight i want to win a race this year not come in 5th
I see ! well a modded race .21 is always going to have the advantage over any of the Mach engines...The Mach's are not bad of course, but they are definitely outgunned against some of the higher end race engines...You probably can squeeze a little more out of the Mach with head clearance, but unfortunately its not going to be the silver bullet I think you are looking for...My best advice is to slowly reduce your head clearance in small increments and test the performance........lower it down by 0.05 mm at a time if you have the shim options...... what you will see is when the engine hits the sweet spot the engine will run crisper at lower temps and idle down very clean...if your too tight the engine will start being picky to tune, high idling being one of the first signs......If your too loose the engine will run decent, but tend to load up easier and need to run at higher temps to make good power......