I'm in the market to squeeze a little more power out of my set up before upgrade my turbo. On my last dyno session I made 350 @ 22 psi on a DynoJet (Topspeed Atlanta,GA). At the time my mods were as follows;
ETS 3.5 FMIC, Intake, LICP, UICP (short route)
Comp 272 Cams
PTE 780's
255lph fuel pump
10.5 hotside turbo
Megan 3" Downpipe, test pipe, cat-back exhaust
Hallman MBC
IX Bov
Stock (Exhaust manifold, O2 housing, Intake manifold, and Throttlebody)
*Since then I have upgraded to a Tubular exhaust manifold and MAP 3" O2 Eliminator Downpipe
**My car will never see anything larger than a FP Red or E85. Overall power goal is 425-450whp on 93 oct, Dynojet.

-If I go the IM/TB route I will select the MAP Rev3/Milspec 65mmTB or Buschur Ported IM/TB.
-If I go the cam route I will select GSC S2's, Kelford 272's, or FP4R's.


Which would yield more power? Any other suggestions?

 

Remember if you get aggressive cams, you will need to upgrade your springs at minimum.

 

Yeah Ive already factored that in. I figure the MAP Rev3/Milspec combo would be about the same as cams and beehive springs.

 

You will gain substantially more with good cams/springs than an im/tb at those levels. S2's alone are probably worth 30whp+ over those comp cams. Ported IM/TB will most likely be a bit less. Together is would be a great combo but I think most would choose a good set of cams over porter im/tb any day of the weak.

 

This.

I think your best bang for the buck will be bigger cams, and also invest in a good set of springs right away.. I broke my stock ones with comp 280's even though tons of people said it would work (it did, for a year or so ) also, you can never be certain you are getting the power you paid for with the cams unless you are certain the spring pressure is good enough to follow the cam profile consistantly

I'd go with some dual supertechs and get that out of the way right now, sounds like you have some good choices for cams picked out already

 

port for faster spool plus you have cams already

 

cams will give best results for sure over intake mani + tb. stock intake mani + tb isnt all that bad really.

 

this but i would just do it all at the same time to gain all the benifits of it. Fp 4r are great cames i know but i agree the larger gain will always come from bigger cams get dual springs so you dont have to worry as liquid said if you choose to got to a even more aggressive cam later.

 

I'm leaning more towards more aggressive cams. I was looking at the GSC Beehive Springs compliment which ever cams I decide on anyways. Are yall suggesting otherwise on the springs and retainers? I havent heard any complaints about the GSC Beehives Springs so I'm hoping that they will work fine.

 

Single beehives are sufficient for almost every application in our experience, we look forward to helping you out whichever route you go as we guarantee the best pricing on GSC cams

We also recently launched our own MAP beehive valve springs, I run them in my personal DD with some GSC S1 cams so be sure to check them out as well!

 

Chris, what is your personal opinion on your Rev3/Milspec TB vs GSC S2 cams in regards to pwer gain? Your Rev3 mani alone has good advertised gains but are those gains peak hp or through out the powerband?

 

I love GSC cams, don't get me wrong, but how much of a gain would really be realized going from Comp 272 to GSC S2 cams on a stock turbocharger? I really don't have any personal experience to work from in that regard. In regards to our manifold the gains are realized throughout the power band, a customer in the UK actually realized a 500rpm improvement in regards to spool with an FP Black. On the other hand, if you go with the GSC options you can resell your comp cams and use that towards an intake mani and do both! lol