angelo1000r

Below is my current ls2 Gto set up, please advise if you think the cam is to small for this combo! Are if something else is off????

Short block is a stock 2005 ls2 364
Torquer v2 112 cam
Prc 2.5 ls6 heads
Fast 102 intake
42lb injectors
Ported stock 90mm T.B.
Hendrix's power chamber
AR 1-7/8 headers
UD pulleys
SD tune

angelo1000r

All I see at the track and on the street is a ton of ported stock intakes, 243 heads with other bolt-on, with huge cams kicking butt????

Would I benefit from a cam with more duration?
Are a cam in the tick polluter range "huge azz" cam???

Thanks forum members for any help!!!!

HCI2000SS

iTrader: (2)

A budy of mine ran that cam in his 06 GTO, and it was a good fit with stock heads, but you could probably benefit going a little bigger with those heads

angelo1000r

That's what I was thinking just more duration and maybe a 111lsa???

HCI2000SS

iTrader: (2)

Yeah maybe something like a 235-238 intake, and a 240/245 exhaust with a 111+2. A little more lift wouldn't be a bad idea either. Of course that's just a big generalization, but I think you get the idea

angelo1000r

Yep, that was what I was thinking, I just think the fast 102 isn't even working with my current set up! just needs more top end HP

Sales4@Texas-Speed

iTrader: (4)

You would benefit from more duration, but drive-ability would suffer. It's a trade off but if you're looking for a max effort all out performance cam, MS4 will be the best choice. We just need to make sure the heads aren't milled too much.

angelo1000r

Beau, I talked to Arron at Texas speed last week about my set up! Thank you guys for everything!!!
Would I have to change the springs to go with the ms4???

I'm pulling the valve cover and rocker arm's to find the Texas speed serial # this weekend to find out the cc's of the head, I'll get back with Arron on Monday! Thanks again!

HCI2000SS

iTrader: (2)

Yes, especially having the fast 102, you want to shove as much air as you can into that sucker to get the most out of it. What lift springs do you have in right now? IIRC, the MS4 cam is damn near a 650 lift

Sales4@Texas-Speed

iTrader: (4)

Good deal. If you do not already have the PRC .650' dual springs, yes, you would want to change to those.

angelo1000r

The heads are .650 prc springs

With prc 7.4 pushrods

Sales4@Texas-Speed

iTrader: (4)

Springs will be fine, would need to know how much was milled to recommend pushrod length, and even then, it's probably still best to measure.

angelo1000r

Bump!

angelo1000r

Heads are 62cc milled dam!!!! So ms4 out is the question, I'm thinking of maybe going for the 233/239 595' - 603' 111lsa

Not sure if it is worth it?????

newschool72

iTrader: (12)

You will see roughly 10-15 more HP for each 10* you increase the duration. In most cases you will move the TQ peak of the engine up a few hundred RPMs for each 10*. You loose down low to gain up top. What trans are you running? If its an auto, you need to start looking at converters if you go much past the mid 220s on duration. If its a manual, be very careful if you drive it much on the interstate, because 6th gear can become useless if the RPM range of the engine go up too much, as in lugging and surging at interstate speeds.
I like to go on the small side with cam selection, if its going to be an all around driver. Save the 240 cams for the drag guys or dyno queens. In many cases you will be quicker with the smaller cam in a street car. Great TQ makes a street car fun to drive. High RPM HP wont be felt till you wind that LS2 up. The guy with the small cam will already be on his brakes for the next red light, LOL. Just my opinion, and not a popular one on this site, but it works really well for me.

angelo1000r

So you think the torquer v2 is fine?

newschool72

iTrader: (12)

I think so, IF its something you drive a lot. Big dyno #s are cool on here, but seldom so out on the street everyday.

sublime1996525

iTrader: (2)

In my 02 Z06 I had that cam with TFS 215 heads milled to 59cc, ported FAST 90/90, and made 457rwhp and 400rwtq. It was fine driving on the street, made decent mid range power. If you're looking for dyno or just using this for racing maybe go bigger but if you drive it a lot on the street, especially in traffic I wouldn't go bigger. The only problem I had with that cam was stop and go traffic and speed bumps lol.

angelo1000r

All right checked the car out everything is fine!

But, I got the same answer from 2 different Technicians that the intake and exhaust is to big? As in the exhaust is 1-7/8 and would be better at 1-3/4 & the 102mm intake is to big and a ported ls2 would have been fine? For Better down low acceleration?

So bigger camshaft would help the car out? Which = big headers and intake would work? Lol

angelo1000r

Just orders the tsp 233/239 595"/603" 111lsa can't wait to get it installed and tuned!!!'

Thanks everyone on the forum and thanks TSP!!'