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you may get someone interested if you post it here with all the track prep done to the car https://www.racingjunk.com/ i don't know all the race classes but most of your parts seem pretty mild besides the following: aftermarket ecu tunes e85 aero - i didn't see any installed, so consider...

is it possible the nut was torqued with the spring preload? in other words, the spring was pushing against the nut and preventing the nut from bottoming out when torqued? this is what i have for the top hat nut torque: 21 ft lbs + 90 degrees

Check top hat nut torque again. are these swift lowering springs?

Bump

has anyone confirmed how much bump travel the rear has? if not much to begin with and you lower it further, you'll hit the bump stop more often and cause loss of rear traction.

i wish ohlins would release the dynos for these shocks. on the bmw m2 ohlins sets, full stiff is essentially hydro locked.

bump

someone paying 55k+, such as a supra, is gonna expect some level of creature comfort. so those are typically going to be 'gt' cars. also some cars are designed to ride too stiff to give the feeling of a 'track car'. see the new civic type r.

what makes a car a GT car? what makes a car a track car? there are no real definitions. i suppose if the car comes factory with pilot cup tires, then it's more of a 'track car'. these are all street cars.

I would just get oem springs unless you want a stiffer ride with coilovers. I’m actually selling my Ohlins.

The factory wheels are actually pretty light. Unless you want specific tire sizes from a 18” wheel.

how harsh does that ride? It looks like the fronts are just sitting on top of the bump stops.

The Supra is extremely competitive and relatively easy to prep in B Street based on National results. I just don't know how much money you'd have to throw at it to be competitive in XA. But if you're >90% alien, maybe that won't matter lol. For track duty, you could just set the front sway to...

Fixed

$2600 shipped The kit is brand new. Only assembled once but never installed on vehicle. OEM top hats aren't included in the kit. Reason for selling: I recently picked up another car project and don't have time to use these coilovers.

Edit: Just saw that you're planning to run in B Street. Your autox setup is probably going to be different than your track setup. For autox, most seem to run the stiffest front bar, RE71RS/A052. If you're feeling fancy, you can get MCS Street legal shocks, but you're going to need to find...

If other lowering kits offer a shorter bump stop, then you should probably get a shorter bump stop for the dinan kit. Shorter spring means reduced shock travel and you don’t really want to ride on the bump stops.

Other way around. It’ll ask you to inflate them.

Updated the motion ratios. Looks like HKS makes these numbers available.

I think I’ve seen your company on Savagegeese videos. Would be cool to get a video impression of a modified gr Supra vs a stock one.