c5 vette brakes
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I'm going to install spindles from a 94 roadmaster and use LS1 rotors. I need new rotors, pads, and calipers anyway so the 12" brake upgrade is basically costing me the cost of the spindles...$50
I thought that when you do the 94 roadmaster front disk swap you had to buy somee expensive aftermarket armsif this is not true pm me the info or more info on this swap sounds interesting and hopefully don't have to buy the upper arms
IIRC the roadmaster is a tall-splindle, so you would need a set of adjustable upper control arms to correct the alignment. also, the b-body spindles produce worse bumpsteer than the car already has. but there is no cheap way around this.
it's a taller spindle so I'll get some UB machine tubular uppers that are shorter than the stock length UB tubulars I have on there now...these tubulars go for about $65 per side
I started to do this swap years ago when it was still the hot setup. I had the spindles, C5 brakes, and the Global West upper arm. They sent me an arm for a stock spindle and I didn't know it until it was too late to return them. Fortunately I didn't get my car done and after some years found out why it's not such a good idea. Here's a quote from the www.scandc.com website:
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Q: Will SC&C’s SPC arms work with the B car spindle swap? What’s the difference between Street-Comp and the B swap?
A: Yes, our SPC arms will work with the taller B spindles. This swap requires a shorter upper arm so you just adjust the arms to fit and set the alignment. The B swap offers better than stock brakes and improves the camber curves and roll center height due to their taller overall height. That’s the good news, now for the bad news…the B spindles were designed for a totally different car. So while they can be bolted on, not everything lines up correctly. The steering arms are longer which slows the steering ratio and upsets the ackerman angle or the difference in the angles of the tires when you turn. Worse, it doubles the amount of bumpsteer, which isn’t too good to begin with! This can make the car feel very unnerving to drive, especially at speed. The B setup is also quite heavy and increases the track width of the car, which may lead to tire clearance problems with fenders.
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You can get the bracket and bolt the C5 calipers onto your stock g-body spindle and use the stock a-arms. www.flynbye.com If they aren't specifically listed you can email Ed. That's where I got mine. $75
SC&C has an adjustable upper arm that can be used with taller upper and lower ball joints and stock spindles for the needed improvements without the negative bumpsteer issues. I was told this setup gives a better front end geometry than a 2002 f-body setup.
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Q: Will SC&C’s SPC arms work with the B car spindle swap? What’s the difference between Street-Comp and the B swap?
A: Yes, our SPC arms will work with the taller B spindles. This swap requires a shorter upper arm so you just adjust the arms to fit and set the alignment. The B swap offers better than stock brakes and improves the camber curves and roll center height due to their taller overall height. That’s the good news, now for the bad news…the B spindles were designed for a totally different car. So while they can be bolted on, not everything lines up correctly. The steering arms are longer which slows the steering ratio and upsets the ackerman angle or the difference in the angles of the tires when you turn. Worse, it doubles the amount of bumpsteer, which isn’t too good to begin with! This can make the car feel very unnerving to drive, especially at speed. The B setup is also quite heavy and increases the track width of the car, which may lead to tire clearance problems with fenders.
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You can get the bracket and bolt the C5 calipers onto your stock g-body spindle and use the stock a-arms. www.flynbye.com If they aren't specifically listed you can email Ed. That's where I got mine. $75
SC&C has an adjustable upper arm that can be used with taller upper and lower ball joints and stock spindles for the needed improvements without the negative bumpsteer issues. I was told this setup gives a better front end geometry than a 2002 f-body setup.
I'd suggest if you going to do the work to install larger brakes then it makes sense to use the taller spindle and improve cornering at the same time
I'll readily admit that I'm not even close to geing a suspension guru. But I've researched and learned from those who are and are gracious enough to share there knowledge.
The b-body spindle, due to the longer steering arms, doubles the bumpsteer and also slows down the steering ratio. The positive gain you do get with the b spindles is more than offset by the bumpsteer. The taller ball joints (which are rebuildable I believe) provide the positive aspects without the negatives.
The b-body spindle, due to the longer steering arms, doubles the bumpsteer and also slows down the steering ratio. The positive gain you do get with the b spindles is more than offset by the bumpsteer. The taller ball joints (which are rebuildable I believe) provide the positive aspects without the negatives.
pontiacgp said:
As said, this has always been the big negative to the B-body spindle swap from day one. Nothing new there.
By keeping the stock spindle but using the tall upper and lower ball joints, you are effectively making your stock spindle into a "tall" spindle. You gain all of the postives from the better camber curve of the tall spindle without any of the negatives of increased bumpsteer or ackerman angles.
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