personally i would just give JBP a call and tell them i want xxxWHP and tell them to give you are price.

 

lol he would be broke after that

 

Regrind the stockers to something with around 260+ duration (210+ @ .050) and 110-113 LSA, crower can do it for you. Throw in a set of Supertech 78lb (good price) or Ferrea valve springs and rev to 7500rpm. Throw in neutral balance shafts if you want to go higher, its easy if you or someone you know has done it before. Higher engine speed = more horsepower.

I personally wouldn't worry about the head too much on an NA build because your cam lift is your limiting factor but some machine shops can hog out the head if you wish.

An E85 conversion would be simple as well on an NA build. Well within the limits of the stock fuel pump.

 

To clearify when I said port and polish I ment port match the head to the intake and header, not go nuts with a die-grinder. Sorry for me not being more clear.

 

Won't work without a standalone. The only off the shelf application that I'm aware of for an Ecotec individual TB kit has to be run with an "alpha-n" TPS fueling system as the kit doesn't have a provision for a MAF or a MAP sensor.

I can't see 220whp+ without cam regrinds imo.

 

seriously witt you have to be the smartest person on these forums

 

yeah but if you are going to P&P, blueprint, bore and stroke, etc. you are just better off buying it that way. Then just have to worry about the swap. and the costs should be roughly the same, but i would give JBP the HP edge

 

No, just the stupid kid thats allowed more play money than most from his better half.

Honestly though, you won't regret going the big cam route. A cammed four banger is "megalolz" at stop lights in my opinion.

 

So you think 220 is possible without head work Witt?

 

if by head work u mean PnP then yes...but if u mean valve train no

 

Sorry, I mean without PnP

 

Just trade it in for a turbo'd balt dude












J/k

 

its like hondas bro...u just need high compression and some valve train work...

 

hey im just tossing ideas out there..what about custom intake/bigger thortle body (witt?)

and as for na build..me and reign where discussing this and i am looking to go this route, i.E cams and other things like porting the head

 

I personally believe its not necessary but I don't have any data to back that claim up.

If you can find a set of 2.4 cams out of a junkyard send them to Crower for a base circle regrind. Call them up and they'll recommend a grind for your desired build and engine speed.

The bigger throttle body won't hurt, especially because you can tune for it. The intake manifold can be iffy. They technically should be tuned via port length and diameter for your desired powerband and can have negative effects if done incorrectly.

 

really not needed because a CAI is flowing enough for the head to handle...its not like the CAI isnt supplying enough air

 

I port matched my head myself in my old 2.2 5spd Cavi and when I was done that and my other mods the car ran 14.6 1/4 mile times every weekend. Needless to say it surprised quite a few people.

 

Yeah... port matching the intake to the head is very beneficial, as it keeps the intake velocity constant.
The results are indeed quite surprising a lot of the time.

 

well i have a sai intake and i was thinking of concokting somone along the lines of a z06 intake..that splits off two ways..then i thought about it and really how much air can i cram in there kinda thing..

boys and gals, i just found this

https://www.cobaltss.net/forums/jbodyperformance-121/jbp-camshafts-valvetrain-accessories-sale-99742/

 

I'll try to go as far as I can without vendor bashing, but I haven't seen any before and after dyno results of a "tri-flow" grind. Its staggered intake lobes and on paper looks to me as nothing more than having slightly longer duration with less effective lift than stock. I'd gladly eat my words if I saw a before and after dyno though.

 

yeah thats fair, i have not heard good things about them ether, i just dont know where else i would get cams

 

CROWER!

 

I LIVE IN CANADA!

 

At least one LSJ guy had Crower grind his and WSFrazier spoke with them on the phone last year and they were reasonably priced from what I remember (~250-300 maybe?). I can't remember the turn around time but I'm thinking about 2 weeks.

I'll call Wes and see if I can get him to post some info in this thread.

 

AND? Seriously tho Cromer and Crane both grind cams for our cars now. In fact Crower does the grinding for the GMPPcams you can buy from GM. When they first came out with them a few years ago I made a bunch of calls (it helped working at a GMPP dealer) and found Crower does the work for GM. A quick call to Crower and I was talking with a very nice guy who told me they can custom grind any profile I want. GMPP sells the cam blanks and they grind them. I believe Crane does regrinding. Not a fan of the whole regrind idea as I had nothing but problems with regrinds the 2 times I used them in my V8 builds. I prefer useing non regrinds.