Drag Racing Discussions > Front Engine Dragsters

DRAGSTER LENGTH

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hemidakota:
Quite a few people have been telling me if I want to run a 7.60/NE1 dragster, I should build one 225" long. What is everyone else running? I have been thinking I would like to build a 200". What are the pros and cons? I have room for a 225" where it would be kept but I do see a lot of shorter ones out there. Is 225" really going to make that much difference?

H.G. Wells:
Hopefully folks with more experience will chime in, but there are a bunch of 200" or less cars running mid 7's.
Mine is at 196 and my next one will be 196-200, mainly due to trailer configuration.
Would the 225" car be more stable? perhaps. Longer is better but I suspect there is some point of diminishing returns.
lots of short 150 cars out there that go straight, but are a handful when they get out of shape.

dreracecar:
Wheelbase is a state of mind and its a load of crap when some "wanker" says that short wheelbase cars are squirlly or dont handle. I have wingless 105" fuel altereds running straight, my car runs 7.0Pro and is only 193" The lenght was determind by buying 2 lenghts of tubing for the front and cutting them in half for the 4 rails and where they came together THAT determind my wheelbase. Run away from anybody that tells you different, Their opinion means nothing.
General rule is the shorter the wheelbase- the wider the front axle.

FEDNV:
Is there some kind of formula for front axle width to chassis length and does the type of front axle matter on how wide the axle will be?  I have a 185" with a fairly narrow front axle (in comparison to some) but mine is solid mounted with steering rack and have never had any issues, but my car only goes 175ish.

dreracecar:
Early 135" jr Fuelers ran as wide 48"
What one has to look at is when the back end wants to come around and pivots around the front axle. The wider the axle the more angle the car can acheive before it tips over because the axle acts as an outriger.The longer car can get away with a narrower axle because of its wheelbase and the sensation of coming around is slower which give more time to react to it- the downside is that the longer wheel base chassie is more flexable and needs greater steering input at that point and that when it tends to oversteer when things start to catch up- and zap , you are going in the other direction.

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