We raised the rear roll center by shortening the cradle bushings. So now the cradle butts to the chassis, and reduced the rear squat angle by lowering the forward inner control arm pivot point. We also removed the rear HICAS and adjusted the height of the inner pivot point to alter toe through travel.
. You made an error you should be raising the rear not lowering the front pivot point . you have gone backwards with your roll centres even though you have raised the subframe . .
It is fine Rob, it is similar to S15, R33, R34, where Nissan lowered the front to reduce squat angle. We went with this option as this car is going to use 335 tyres and wanted less camber change through it's travel, to keep maximum foot print with the super wide tyres.
its not John look at the angle change of the control arm by moving the front vs back pivot points . you are reducing the roll centre (angle) my picture says 1000 words . .
fitted a SARD 5L surge tank with 2x400L/h+ Walbro E85 pumps inside countersunk in the floor Teflon hoses and fittings 2x10 micron fuel filters Magnafuel regulator in the boot rather than engine bay to keep away from heat
No shouldn't be a problem it has been done before. What can be a problem is fuel pressure dropping with heat, from regulators mounted in the engine bay. As for the tyres fitting it is getting custom wide guards.
id like to get the anti squat thing cleared up because now i am starting to doubt myself my understanding was a flatter(front to rear) rear LCA was less desireable as it gives more squat . so to be clear as viewing the lower control arm from the side of the vehicle if the inner pivot points are both parallel to the road then it has zero anti squat . raising the front pivot point of the LCA will give anti squat, so reducing weight transfer. But with heavy springs and coil overs in a race car it might not matter. how to measure the percentage and what the right amount is, i dont know In relation to s13's etc, it seems that s13's had much more anti squat tuned in than s14 and s15. maybe this was to try and increase traction under load or because of space constraints. again i dont know.
Yes the early Nissan's had too much anti squat. Yes it depends on the spring rates, you have to look at the whole picture. By reducing this angle on our race car it made a big improvement to traction.
update 6 differential piston Brembo callipers and rotors from a 997 GT3 cup with hard anodised custom hats and adaptors. Rotors are 380x35mm, 72 vein, pasta slots. Custom made to fit a 300zx TEIN Mono Sport with Active EDFC with GPS
They are some nice brakes! John, is this being built for any particular category or event (ie Prod Sports / Sports Sedans / WTAC)?
Roll cage is now fitted, its currently at our panel shop getting a custom body kit. The engine bay is also getting tidied up at the same time.
John, if this car is intended for CAMS competition under Group 2B eligibility rules (eg: Prod Sports), the entrant is limited to a maximum of 44" of wheel width, and these wheels total 46". Outside Prod Sports, won;t be an issue.
There is not much on this car that will be legal for prod sports lol. I get the impression this is going to be more track car and sprints rather than door to door racer.
The car is no longer here so I can't check and I can't recall the offsets. From memory they were 20 something. And yes you are correct Shane, this car is intended for super sprints. Maybe time attacks. Big-rack off APR wing arrived today, the same as Black Beast's.
