Traction For Street 1/4

[180bfj20det]

Car is a street-registered 180b datsun. Aim is for fastest 1/4 possible on street tyres. Car has fj20 with about 400rwhp with another engine getting built for more power.

I have modified the read end so it sits at 0 degrees camber with 9inch rims at the back which has currently 255s. They are 17 40s.

(1) Should have I just run a 13 inch rim with a 225 street drag tyre with high profile??? High profile seems to make straigth line performance great.

(2) If I keep these 9inch rims and go to a MT street drag radial tyre which is what I want to do, do i keep the 255 or should I move onto 275?

Any other info appreciated without input about suspension as thats another story.

Cheers

[r33_racer]

isnt your best bet always going to be get the widest slick you can fit under your guards and on the rim? So if you can fit the 275's under then go for that.

[DOUGMO]

I WOULD BE GOING FOR A SMALLER RIM WITH

A TALLER TYRE MATE, SO THE TYRE CAN MOVE A BIT

AND HELP PUT THE POWER DOWN. LOW PROFILE TYRES

WILL GIVE LESS GRIP BECAUSE THE TYRE IS TOO STIFF

IN THE SIDE WALLS

[180bfj20det]

Thats what I thought doug,

I really want to get this sorted before i get this car back onto the road and head for the strip.

Any suggestions into tyre sizes please, rim size and what tyre (street-legal)

Thanks

I WOULD BE GOING FOR A SMALLER RIM WITH

A TALLER TYRE MATE, SO THE TYRE CAN MOVE A BIT

AND HELP PUT THE POWER DOWN. LOW PROFILE TYRES

WILL GIVE LESS GRIP BECAUSE THE TYRE IS TOO STIFF

IN THE SIDE WALLS

[2rismo]

You don't need a taller tyre at all. Fit some MT Drag Radials in ANY dimension that suits your rims for the best results.