Just as the title states does anyone have any dyno charts or first hand experience NOT HEARSAY with running GSC S1's and the BLACK? I have full bolt on and ported everything on a built 2.0, im willing to sacrifice 35-40 hp for faster spool up and more bottom end tq, I have a VIII so S1's will give me more hp then they would on a IX.

The reason I ask is because I saw a couple posts throughout my search on these cams with larger turbo's, the two that I saw were running the 80MM RED and they both had an amazing powerband, torque and horsepower everywhere from about 3800 and up just a crazy looking table top looking curve. Here is one example below, I will be running E-85 and much more boost which of course will = mor HP.... but GEEZ that is a beautiful graph.

https://www.evolutionm.net/forums/ev...sh-racing.html

Thanks.

 

I dont have charts but...logically it wouldnt make sense to do so, you'll probably lose 300rpms at most with the S2's(which you wont feel) but those 35-40WHP(you WILL feel the difference) besides you have a fully built block with ported parts, you're gonna want the most flow you can.

 

I have brand new s2's already, I'll be on SD also, so I could still hit 580 Dynojet hopefully on 36+ PSI and Im not revving past 8100 rpm anyway so.....

I want actual info or data please.

 

i would call greg@gsc. he will have some good insight for you.

 

I am pretty sure I have a dyno graph of that combo. I need to go look for it though and that might take awhile

aaron

 

Kelford 272's are great cams. Ive read gsc s2's are the same cams sold for more money.

 

 

 

Ummm no.

Anyway the Black/S1 car did 497/400 at 31psi on an M5 meth jet 100%. I need to look for the map and doublecheck the torque...it might have been a tad higher. That was through a MAF as well. It also had an O2 dump for whats its worth.

I have it written down as S1s....but I am checking to make sure it wasnt actually S2s which seems more inline for the power.

 

Thanks for the info sir, let me know what you find.