rexset

I need to know wich are the maximun grip configuration of the wheels for a 350whp Rx-7 Gen 3.

I'm thinking of buy a nice wheels , with 235/40 R18 on front , and 265/35 R18 on the rear ones , but I don't know if this messures are correct to have the maximun grip on a street radial.

I don't know the rigth wheels that I have to buy , please if someone can help me.

I want to make 188mph , safe , so I have to be 100% sure that the car is gone have grip at that speed.

Please let me know you opinion , and if it posible a cheap please where I can buy a nice wheels for my Rx-7.

dradon03

iTrader: (2)

Know this is old but I have Fiskes running those sizes and feel very comfortable at 250km/h

rexset

Do you have the original suspencion?

I have Koni with eibach springs I think that the car is 1" lower on the front , and 1,5" and the rear.

I can drop the car more , cause the Koni shock are semi regulables , but I don't know if that can be dangerous at Hi speed , cause I know that if I change for the 18" wheels the car get hier , and that is not goo for Hi speed stability.

I made 175Mph in a single turbo rx-7 3 gen with the same suspencion and 16" wheels (225/50 r16) , the car feels stable at that speed but I know that the 16" tires have a lower hi speed performance that the 18" ones , so I do not try to push the car to get more speed , cause I was I litle afraid for that.

I want to made 188mph (300kph) in my car , but I don't want to die tring to make history. (:

I'm working with full race 3mm aphex seals pettit racing engine on a rx-7 gen 3 , with AEM EMS , Pettit racing Stage 3 intercooler, and no restricitve exaust , with the original twin turbos , but ported. I'm working with 12 Psi of boost , cause the load at hi speeds is to hard , cause of the wind force.

Please if you have more experience in this area , I will apreciate if you can share with me , in this moment my biggest consern is the security.

Wargasm

I have taken my 400 rwhp FD up to 165+ mph several times on stock 225/50-16 tires with R-Compound tires... Toyo RA-01.

Just make sure your pressures are good and the tires can do it (good tires, not crappy ones)... and inspect them for any cracks or other defects like nails, screws, etc before you go out.