I'm ordering rims from iforged but want to fit the same tires that I currently have on my stock porsche sporttechno's. Does anyone know what the offsets are on these so I can order the apropriate wheels ??? Thanks.

Mine:

 

18x8 have offset of 40mm
18x10 = 47mm
18x11= 63mm

Hope this helps!
-z

 

Thanks. Do you know whats a quick way of finding out what are the offsets on mine ? And do all TT's come with 18's or is there a 19" option ? How many inches do mine look like from the pic ??

Thanks for anyone who can answer

 

A qiuck and easy way to determine the sizes is to look next to the valve stems. Stamped into the wheel are the widths and offsets. Also, if you look on the backside of the wheels they should also be stamped. with sizing and or part numbers.

All 996tt come with 18" stock. Porsche did not put 19" wheels on cars until the 997's. 19's will work, but you may have to use spacers if using a factory 19" wheel. Aftermarket 19's also work and usually sized for the make of vehicle, so spacers should not be required.
-z

 

Just a bit of info:

The Sport Techno's that Porsche installed on 996tt's all used spacers on the rear. The 63mm offset/ 11" wheel was really designed for narrow body cars. This was the only 996tt wheel that used a factory spacer. If you are having wheels made to match your existing wheels, make sure they use the dimensions from a non-Techno 996tt. This way you will not need to run spacers.

996TT Hollow spoke sizes are:
8x18/ 50 offset
11x18/ 45 offset

GT2 sizing will also work, but you may have to roll the fenders and increase your tire sizing to 235's and 315's :
8.5x15/ 40mm offset
12x18/ 45mm offset

-z


[quote=ramone]I'm ordering rims from iforged but want to fit the same tires that I currently have on my stock porsche sporttechno's. Does anyone know what the offsets are on these so I can order the apropriate wheels ??? Thanks.

 

Thanks for the info Zona. This might be a stupid question but will the tires that currently fit on my 18" Technosports fit on aftermarket 19's ?

Also what do most people who mod their TT's for the street ride on: 18's or 19's ? Whats best for both looks and performance ?

Do 19's look noticabley much better and is the performance decrease that noticable ?

What I mean is is there a trade off ??? and most importantly is the trade off actually noticable ?

Sorry for all the questions, i'm just pretty clueless about this stuff and just getting wet behind the ears so to speak

Thanks again

 

My philosophy:
No such thing as a stupid question!

Responses in red-

 

Very informative post. Thank you Zona.

 

I found out my SportTechnos are Pirelli Tires:

Front
225/40 ZR 18

Rear
295/30 ZR 18

Are these the usual offsets for the TT ??