As title says we did some dyno testing on sat with a gt42 roller and a gt47 roller vs borgwarners in same size with the new borgy billet wheels both cars put on 30 to 40 more hp on same boost was amazed and the borgwarners wernt ever rollers thort i would share i think ill be putting one of there wheels in my gt42 now seem to be the go

Awesome, I have been waiting for someone to test this. Can I get a copy of the dyno sheets please?? GT42 im interested in, were there any differences to torque and response? Cheers

Ill let ya no mate the cars are racing this weekend at calder park

man, wish this info came out earlier when i was turbo shopping. i was looking at the S300 series for my VL, then i bought a roller Z instead, due to lack of information on the market. Awesome move boys.

What are they like dollar wise? Are they like for like compressor wheel size or comparable?

Quote: Originally Posted by Duke57TT [View Post] What are they like dollar wise? Are they like for like compressor wheel size or comparable? cheap bang for buck luke, i only went with the 42 on the ls1 because i got it cheaper 2nd hand an s300 2nd hand is like $700ish

Ill find out what they are one was 1500 no ex housing other was 2100 full turbo these are flash tho the comp wheel looks crazy

Will be interesting when Borg Warner variable vane series become available. Huge turbos with fast spool!

Yeah the cheaper ones are on every 2nd LS kit, these newer billet ones are interesting though. Quote: Originally Posted by vltrb-0 [View Post] cheap bang for buck luke, i only went with the 42 on the ls1 because i got it cheaper 2nd hand an s300 2nd hand is like $700ish

http://www.himni-racing.com/index.ph...u cts_id=1747 (http://www.himni-racing.com/index.php?main_page=product_info&cPath=25_28&products_id=1747) pick up one of theses gt42r $1450 to your front door oil cooled