Grimgrak

iTrader: (3)

Who here runs s3's on a small turbo? I've been told there are even people running stock turbos with s3's making good power and not sacrificing having a meaty powerband. If this is the case why do people even bother with s2's?
Looking to pick up 75whp on a dyno with buschur dyno specs. On a maxed out gt3076R. The documentation on the s3 description however says you shouldn't even consider these cams unless you have a gt42... Since I plan to road race the car..... I'm worried.

If there is another thread on this please link me.

Svendiesel

iTrader: (25)

It is silly to say S3's wont work with anything really, and they do work really well on small stock upgrades or stock turbos. I have S3's in my car and Im running nowhere near a 42R, and no one does really haha.

People typically go with S2's because you dont really need to do any wild valvetrain upgrading

Grimgrak

iTrader: (3)

I'm not sure what lifters my car has on it but i've already got the supertech dualsprings/retainers how much wilder would I have to get to do the s3's?
Since my turbo is able to pump out more boost but it doesn't increase any power... I'm just wondering what else might be a limiting factor. I'm getting 20psi @3900rpm now what would s3's be like in comparison to that?

RussellDaniel

iTrader: (9)

I know s3s on a fp green is a torque animal that can make 500 whp.

LOLZFWD

iTrader: (17)

s3's are good cams. But you would be wise to fully build your head to run them, esp at high rpm. And make sure your guides/valve tolerances are to spec if your head is ported.

LOLZFWD

iTrader: (17)

s3's are good cams. But you would be wise to fully build your head to run them, esp at high rpm. And make sure your guides/valve tolerances are to spec if your head is ported.

slimjim1804

I believe TSCOMP recently tuned a stock turbo VIII with S3's.
Check the dyno numbers section.

Tekniq

iTrader: (11)

https://www.evolutionm.net/forums/ev...tock-cams.html