New Rotrex C38R Supercharger

Originally Posted by tiller

Good to hear there actually getting out to customers, have they said when there gona be available for anyone to purchase?I’ve been waiting on info for awhile as iam thinking about upgrading my rotrex on my gtm stage 2 kit.

What was the final cost if you don’t mind me asking? I believe the c38-91 that is on my car is already 3” inlet.

Keep me posted thanks

Originally Posted by jefftang04

It's almost 3k Euros for the complete kit with coolers reservior plumbing etc.

Sorry it is 3.5" not 3". I corrected my post.

Thanks

Originally Posted by tiller

Ya I was told the c38r will work on existing sc kits out there, I already have the c38-91 installed on my z, so I just need the pump itself, keep us posted on what changes you had to make and the performance of this unit, lbs of boost etc, this pump could determine wether I sell my kit or not, if I can get 17lbs out of this unit that be perfect.

Originally Posted by jefftang04

The charge cooler definitely needs an upgrade. The gtm one most prob will be to limited.

Next would be the serpentine belt. Are you still on stock 7pk? Min it should be 8pk and even that's a stretch. 10pk would be perfect.

Originally Posted by tiller

Have you found a 10pk that fits your gtm? Doubt there is one, I haven’t had any issue so far with the belt on my kit with c38-91, and it’s maxed out ,but I always keep a spare with me.

Originally Posted by jefftang04

I'm currently on 8pk. Had to custom most of the pulleys. But it was worth it as the belt is able to last much longer now.

Originally Posted by Jinxx

The belt wrap is like 80% so there isn’t much chance of slip ....you can also get a belt a little shorter from any parts store to get more tension