A Arms in the Rear!

[tim_krueger]

ok lets try this again

josh i'd like to see a drag race between the green weenie and kung fu

for some reason kung fu feels like it hooks up better than most, even under boost. i liked being pinned in the seat rather than just shooting a roost (not thet the weenie dosnt pull)

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[matt_helton]

oh hell..........

[Josh_K]

Tim...
How do I say this so it doesn’t insult anyone...?

Dan’s truck is really nice and well built but I don’t think that would be a far comparison. After all my truck weighs about 6k and his weighs about 4,000-4,500lbs (guessing).

I do know that Dan told me the most speed he could hit the ror jump with was 65 and I had 67 mph once or twice. So there pretty close in acceleration.

[ntsqd]

On a 3 or 4 link it's not pinion angle but the location of instant center that determines the forward bite. It's referred to anti-squat. The lower instant center is the less anti-squat you will have and also less forward bite. More anti-squat = higher instant center = more bite. The more bite it has the faster you can apply throttle. NHRA Pro-stock drivers have extremely adjustable 4-link setups so they can get the car to hook up on all the different tracks they run. The traction is never the same from track to track. There are several good books on the subject but the whole thing boils down to if you want it correct you gotta do the math. That's why guys like Trevor Harris make the big bucks!

Thanks for the lesson in what I already knew. The reason I brought it up is b/c it runs counter to everything I've seen and done. If it isn't discussed, then it can't be dismissed or considered for what they're really changing. For instance, how do they change pinion angle on a dirt oval car? My guess is that they alter the suspension linkage in some way. Odds are high that whatever they do changes the IC's location.

As to Anti-Dive/Squat and locking out suspension movement, I agree. But, I think a small amount of one or the other can be an advantage. You don't want the Anti-Dive to lock out the suspension when you suddenly discover that that Whoop got deeper since that last lap, but it would be handy if you had just enough AD that you don't smash the front end down into the oil-pan grabbing Lunkhead just b4 the ramp into that Whoop.