I am doing 350 rwhp at 13.5-14 psi with the older twins and 89k on them. They're dying but I'm sure the 99's can pull a lot more than 350...

thats nice numbers....stock ports?

yeap, stock engine... all I did was turn up the boost and that's it. (mind you all the other stuff like intercooler, injectors and etc...)

twin power

ill say it again...... boostn7 - 400hp on stock non sequential turbos and stock ported motor. 99 spec should make it easier to get to the 400hp

Well, the "99spec" twins are the same as out....the only ones that are different are the RZ (and a couple other trims had them?.



With that out of the way, the "special" RZ twins arent going ot make any more over all power than ours. They are designed for spool up and due to that they use a smaller compressor wheel than ours.



Honestly I think they are a huge waste of money...but thats just my .02



STEPHEN

No his motor was ported when he made the 400...i'm pretty sure..

prior to being ported..... after porting, i dont know what he got

^ fikse is right, he also was pulling some amazing numbers at the strip...but he was putting 18psi through them on those runs.



SPO also makes a good point



The dynamic compressor seals (or are they called abraidable) would be the only advantage i really see over our stock turbos, well that and they are far newer.



Just my opinion

Bob

wow thats damn good...