I'm looking at fitting some Astra-H rims to my Astra-G track car.
The offsets are smaller (ET37 vs ET49) therefore this should increase the track by 24mm so should improve turn-in & grip.
I also found that the OEM scrub radius is approx. -5mm, so fitting the ET37 wheels will result in a positive scrub radius of +7mm.
I've researched a bit about the affects of positive scrub on FWD and the effects don't look too encouraging, however as it's only going to be used on track I'm sitting on the...
Scrub Radius vs Offset
The offsets are smaller (ET37 vs ET49) therefore this should increase the track by 24mm so should improve turn-in & grip.
I also found that the OEM scrub radius is approx. -5mm, so fitting the ET37 wheels will result in a positive scrub radius of +7mm.
I've researched a bit about the affects of positive scrub on FWD and the effects don't look too encouraging, however as it's only going to be used on track I'm sitting on the...
Scrub Radius vs Offset