Ok so my buddy's car was tuned yesterday and made dog **** for power.

B18c 82mm CTR RS Machine pistons
GSR head with FF valves and JG valve train
CTR cams
Stock head gasket
Ebay header w/2.5 collector (going in the trash)
Spoon air box
Sk2 exhaust (new style)
s200 p28


Car made 164 whp and 124 Tq. on a Dynamic Dyno.

I know 13.1:1 is to much compression for CTR's. So now it's time

 

GSR stroke or LS stroke?

 

Stock GSR rods.

 

GSR crank.

 

for wats in it i think your right at about expected i would do some pro 2's or rockets better header and she should be fun .. ls rods and crank and she will be even more fun

 

o its 82 mm do u have dyno graph with af... reputable tuner ??

 

I would becareful going to a pro 2 cam unless the head is ported. stay with some tuner series stage 1's.

 

with 13.1 comp .. i would say atleast stg2's the stg1's are onyl a lil more agresive then a type r cams

 

have the dyno graph we can look at?

 

i dont know about yall but them numbers look way too low to me.......you should be atleast around 170

 

need more info...like what kind tb, im, % octane used...personally i dont think its mainly the ctr cams. i've seem them make over 200hp with less cr too. but if you're gonna get new cams dont get anything higher than pro 2's because you need head work to run those. yes, cr is at 13:1 but still need head work so it can power the cams. if he's using stock im and tb, those parts are really robbing his power. maybe its the tuner...

also, you sure they are ctr cams?

 

seems low for for your setup. your header is probably hold n back power. fyi, my old LSVTEC w/ ~12:1 CR and ITR cams made 178whp with a DC 4-2-1 header and stock muffler. Post up ur dyno graph if u have one

 

ummm pro 1's are alot more aggressive than type r cams.... tuner 1's however are not.

 

I bet your tuner is having to pull an A$$ load of timing to make that compression work without having to much detonation. If you had a camshaft designed with a little more overlap you could bleed off some of that compression and probably add some timing back to it and make good power.

 

Are you on drugs? I made 159whp on a stock gsr! And yes, this just happened.

 

I am not familiar with a Dynamic Dyno. How does this compare with Dyno Pack or Dyno Jet?
With stock GSR cams and GSR intake manifold I was in the low 170's whp on Dyno Jet. Do you happen to have the dyno graph? A/F would helpful.
I don't think a cam change is going to solve all the problems some this else is up.

 

I would be more inclined to say this is more the problem then any thing else.

 

Overlap has nothing to do with compression. He hasn't even posted a graph. You don't know what a stock motor would do on that dyno. You can't compare with other dyno's. You are more worried that some idiot is going to tell you they made more with less on x dyno with x setup. Take it to the track. If you do not trap the mph of similar setups then you at least know you are down on power and that you should have been smarter when choosing the compression and trying to run pump gas. Rant.

 

Try using a different intake. Box style intakes dont usually make power. Ive seen two different cases where ARC and the Ice Box were actually restricting power. I made 10-12 whp by removing my ice box. I forget the exact amount.

 

its not going to be the intake

p.s. i gained 10-12 horsepower by using the comptech ice box. its just different with all motors/tuners/conditions and combination of parts.

 

its most likely not going to be the intake

p.s. i gained 10-12 horsepower by using the comptech ice box. its just different with all motors/tuners/conditions and combination of parts.

 

i find this hard to believe.

 

believe it or not. the peak power gains may not have been that high but mid-range it was that high.

 

ive just done intake testing before and the results from buying a 200 dollar short ram intake and a stock intake arm and intake box (resonators removed) with a dirty filter were negligible.

this was on a H series but its all the same concept.

 

what you get for trying to build a good all motor setup with ebay parts