Fp black & s1's?
 

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.

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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.