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View Full Version : Correct tire pressure for 215/40-17 setup



pk9394
04-29-2014, 11:46 AM
I am running them with 37psi front and 32psi rear same as the 205 and I feel very comfortable right now! will that be too low?

I always had full house in the car (2 small passengers about 130 lb total weight in the back seats). so what is the correct psi should I go for?

Robert Nixon
04-29-2014, 12:15 PM
I thought the recommended is 38 front and 32 rear, I don't think the slightly wider size would matter much.

pk9394
04-29-2014, 12:24 PM
My bad, it is 38

jguerdat
04-30-2014, 07:32 AM
I've been running 38/32 on mine with no wear issues. The width difference is minimal.

N2MYE30
04-30-2014, 11:22 AM
Any pix of this setup? what tires did you go with? Thanks.

shagghie
04-30-2014, 12:15 PM
For solo2 auto-x I ran 42F/36R for the best wear pattern on the sidewall. That was on 215/40/17 Direzza ZII's.
For street it was a little harsh, and also un-needed but i liked 1-2 PSI higher still with the 215 overall.

jguerdat
05-01-2014, 07:55 AM
Any pix of this setup? what tires did you go with? Thanks.

No static pics, only autocross ones. Like Shagghie, Dunlop Direzza ZII. Might consider the latest Yoko AD08-R in the same size.

BigDaddySRT
05-01-2014, 08:36 AM
No static pics, only autocross ones. Like Shagghie, Dunlop Direzza ZII. Might consider the latest Yoko AD08-R in the same size.

I want a set of the AD08R's so bad... run them before they make the minimum UTQG 200 for Street Classes.

What rims you running the Direzza ZII's on??

pk9394
05-01-2014, 01:32 PM
Any pix of this setup? what tires did you go with? Thanks.

Kumho Ecsta LE Sport 215/40-17 on stock 17 wheels. lower with Eibach Pro-Kit and koni yellow.

the right rear had small rubbing doing high speed hwy exit or entering the driveway too fast. 5mm spacer clear the rub.
No spacer needed at the front.

front
http://www.whatsfree.net/ebay/front.jpg

rear with 5mm spacer
http://www.whatsfree.net/ebay/rear.jpg

jguerdat
05-01-2014, 04:11 PM
No static pics, only autocross ones. Like Shagghie, Dunlop Direzza ZII. Might consider the latest Yoko AD08-R in the same size.

Here's a couple of pics since I just put the summer tires on (long winter).

11576

11577

jguerdat
05-01-2014, 04:13 PM
I want a set of the AD08R's so bad... run them before they make the minimum UTQG 200 for Street Classes.

What rims you running the Direzza ZII's on??

I had them on my '12 17" Abarth wheels but had to switch them to my Ciao set from Tire rack.

Wouldn't be too surprised to see the UTQG rating get marked up to 200 soon...

BigDaddySRT
05-02-2014, 06:44 AM
I had them on my '12 17" Abarth wheels but had to switch them to my Ciao set from Tire rack.

Wouldn't be too surprised to see the UTQG rating get marked up to 200 soon...

Well... it is noted to change in the Current Rulebook on 01/01/2015... I don't think they would change it before then.

Have you been happy with the Dunlops?

jguerdat
05-02-2014, 07:58 AM
Have you been happy with the Dunlops?

Yes. They're a huge step up from virtually any UHP-rated tire and certainly more so from the MHP-rated Pirellis. The big thing is that they have a narrow peak grip slip angle zone and I tend to over-drive. Slow down to go faster and all that. The AD08Rs sound interesting partly because at least one National class winner has stated that he really likes them. The treadwear rating might be the killer if that doesn't get upgraded...