Ian F wrote: In reply to Steve Chryssos: True... I read an article about the R8 recently and it mentioned the whole transmission sub-frame assembly could be swapped in something like 15 minutes. On the plus side... an errant pass in a Prototype would not fair well against a Cup car...
Audi team changed out the gearbox/ subframe in 4 minutes at 2000 LeMans
In reply to Duke:
My 1973 Charger came with 14 inch wheels. 15x6 wheels were optional.
btp76 wrote: If memory serves, they stopped being stock cars by around 1970. After that they were custom chassis. I think the "truck arms" date that far back.
Oh, it started well before that. I seem to recall Galaxie spindles, Chrysler ball joints, being used by all of the makes...
Wasn't there some arcane rule about NA$CAR having to use some sort of Ford floor pan after they made the move to the tube chassis? For some reason, a '57 Ford floor pan sticks in my miniscule brain.
Wally wrote: In reply to 93EXCivic: I'm trying to get my Monte that low and it may not be possible without cutting out the floor and gong with a tube frame. Here's a picture of what was done to those ChargersThey were pretty much built up from scratch, although the Pettys did still run torsion bars and leaf springs to the end just like the production Chargers
I didn't know Bob Dylan fabbed racecars?!?!?
That's pretty cool that two guys from my home town not only made it to LeMans, but were invited to do so! Neat!
In that era (late 1960s up through the 1980s at least) the basic formula was 1965 Ford Galaxie front suspension and 1967 Chevy pickup rear suspension. I don't recall that there was a standardized floor pan.
Floor pan rings a bell with me too, and I'd agree its a Ford full size thing.
They still use the truck arms today.
Curmudgeon wrote: Wasn't there some arcane rule about NA$CAR having to use some sort of Ford floor pan after they made the move to the tube chassis? For some reason, a '57 Ford floor pan sticks in my miniscule brain.
Either it was a show car, or Alan Kulwicki's Thunderbird was a tubeframe that had a genuine T-bird skin and floor stuck to it. Nothing in front of the A-pillars was there, but the floor looked for all the world like production MN10.
There were a few variations on the same basic idea in the 60's and 70's between truck arms, three links or leafs for the rear end and either Ford style "rear steer" or GM style front steer front suspensions. Everyone had a theory on why one worked better then the others. Once radial tires became standard the front steer/truck arm car seened to be the way to go. Our Busch North cars were rear steer, one a three link and the rest truck arms. The truck arms stayed more consistant over a long run where if a three link was off it could be way off.
I forget what Ford the floorpans came from but the were but they were pretty much all the same.
You'll need to log in to post.
