Thread: Fast Cars IFS
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Old 12-18-2011, 02:02 AM
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lal Naja lal Naja is offline
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Join Date: Oct 2003
Location: Golden Isles, GA
Cobra Make, Engine: Butler Cobra. 350 Chevy Engine, blueprinted, heads cc'd, ported, polished, manifolds matched, big valves, 1.6 roller rockers, TB Injected, mild cam, MSD crank trigger electronic ignition. TKO-600 transmission. XKE Jaguar rear. IFS by Fast Cars
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Quote:
Originally Posted by Donunder View Post
REALLY quick update.

The installation is pretty much done. The difference to the handling is what we expected--amazing. There are two niggling problems 1) the steering is binding slightly, it has too much freeplay at dead-ahead, and it's not self-centering, and 2) the brakes need work.

Where could the binding be taking place? If you have the MBG steering it a simple setup, although primitive, the bushings are normally sloppy and dont have a tendency to bind. So where else could it be binding?

Is the freeplay in the universal? both are new, Right?

Is the secondary steering shaft too long causing the universal to bind. Mine was 1/8" too long and was binding in the universal. Easy fix.

Self centering. Is the alignment okay?

The steering is not down to the geometry or Ted's IFS or the universals. It's
either the rack itself (unlikely) or the column internals where they go through the dash. Do you have a steering column other than MGB?
The brakes. Peter is going to rethink the whole master cylinder set up and also rework the balance bar because there appears there may be too much rear brakes bias at present. Balance bar is adjustable to balance the bias, should be simple to adjust. You will have to do a bit of testing to get it exact. A remote adjusting system would be great. But I could not find a good solution.
If your master cylinder reservoirs are below the height of the front caliper you may have some drain-back issues causing you to have to pump up the brakes. Raise the reservoirs or use risidual pressure valves to keep about 2psi on the front calipers.


But man, even with the big ole 255 BFGs on the front, the steering (once you get past the initial stickiness) is nicely weighted, and the car just tracks beautifully through corners. Once we get it to behave in a straight line and the brakes start doing their thing, it should be really fun to drive.

Do you have photos showing your steering setup?

Arthur
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