what did your 76 spool at with that cam?

 

I just agreed to trade a member I sold my old BIG turbo cam to, but it spooled around 3600ish. My car never spooled instantly no matter which cam I threw in it.

If you want INSTANT spool, ask member Mr_president about his small reverse split from Camotion. You sneeze on his ******' gas peddle and see 10 pounds, lol.

 

Contact PatricG that is what he does.

 

Thanks! I PM'ed them.

 

im currently putting my incon tt set up on my forged 364 lq9 and after searching for a while and surffing this site, i ended up going with the zo6 cam myself!

 

I ran the 224/230 cam .581/.588 lift on a 115.

decent cam, but for a street car that spends more time in the low to midrange I would have went with a 220/224 cam. I would have liked to see how it would have performed with a smaller lsa like a 112 to see if that would have brought the midrange back.

you don't need a lot of cam with forced induction, we're pressurizing the manifold, its not like we have normally aspirated engines.

patrick g knows his stuff but I'm not sure how much experience he has with forced induction.

 

I know it is not the best cam for forced induction but I had the MS4 when I was N/A and wanted to see how it would do with a T-70, and I was very suprized how this cam works with a turbo, I really love the power it makes, I start spooling around 2600 to 3000 all the way to 6900 when I shift. I bleed off little boost since it is on a 110lsa, going to swap cams one day but for now this cam does really good and surpassed my expectations. I would ask Patrick G about a custom grind though.

 

I'd have to disagree with that. The cam still determines spool characteristics, powerband, peak power, and specs need to be designed for desired max RPM as well.....IMO

 

good info guys keep it comin!

 

you're right. but its proven a cam isn't needed. over 800 rwhp has been attained with a stock cam.

the people that swear that there cams give them 150 rwhp increase I do not believe at all.

 

Its proven a cam isn't needed huh? Then a turbo isn't needed. They both add rwhp....right? Where was thios proved? Did someone do a cam swap and gain 0 rwhp? Nope. Sorry pal.

EPP had proved something like 100rwhp gains with their blower cams. And of course, if you boost the **** out of a stock cam......then you will see big numbers. Its just that the numbers can be BIGGER with a simple cam swap.

With the "stock cam works" reasoning.......I mean ****, people have gone 10s with STOCK INTERNAL N/A ls1 cars......so why do we need forced induction?????!?!?!??!?! Because every mod counts. Speed and power is addicting and we can never have enough. When we are spending 10s of thousands of dollars on the build ups.....why skimp with a "mediocre" cam when you can grab a nice little extra chunk of power for $400?

 

Ninetres is dead on. I have personally known people who have picked up well over 100rwhp with a cam swap on FI. I would never even think of building a set up with out a properly matched cam. Cams are the brains of the motor, controls all valve evens which is directly related to power output.

 

DING DING DING DING

 

Different FI motors will need different cams. A PD blower makes a ton of low end TQ, so they can get away with a bigger cam that would normally lose low end TQ.
When I had my Turbo Harley, I tried 3 different cams, and the bigger I went, the more power I made. Having to use small cams with no overlap is an old myth. Matter of fact, having some overlap with a turbo motor can also help cool the exhaust valves.
So you think these guys with 7000 HP Top fuel motors are running little cams? Yes, you will loose some boost out of the overlap, but boost is adjustable.

 

There should be a sticky linked to a turbo buick forum for this topic. I know the heads are a little better today, but other than that, they are running the same (approx.) displacement per cylinder as most on here, and have 20 years of experience with turbo grinds for any application.

 

so does everyone agree its worth the extra $10-25 for a custom grind cam?

 

KP has our cam in his car, as we do in my Z28, and here is a twin turbo Z06 that we installed the same camshaft into.
http://video.google.com/url?docid=30...HCAO9kkY_gce6w
http://www.exoticperformanceplus.com...Car.php?car=26

Here is an STS Camaro SS that we built that also has this camshaft in it.
http://s81.photobucket.com/albums/j2...MOV00004-1.flv
http://www.exoticperformanceplus.com...Car.php?car=32

 

IMO no.

There are more than enough "off the shelf" grinds, to suit. I was specced something like a 240deg cam, to meet my goals of a consistent 10sec car and 140+ with my setup when I built it in May 06 by a reputable grinder.
Fearing that would leave it driving like a POS down low, I opted for a smaller cam like Get me Som at 224/230 on 115.
This allowed me to run 10.04 at 148mph+ with nice road manners, and a fairly smooth idle..

And for me to find out recently, half the air was probably getting dumped out the exhaust due to weak valve springs....

Well.....it could have done better.

That said...I am now going to try EPP's cam to see what it does for me along with new cylinder heads.
The only reason Im doing this, is I want to ensure I can pull very hard to 7k+ as that will allow me an easy 150+ in 4th gear, as 150mph comes up at 7000rpm, which with the other cam, and spring/rocker problems, was a struggle.

But whether it was the cam, the springs or the rockers causing that top end problem....dont know. But the springs defo were very weak.

If I dont like the bigger cams road manners, I'll put the smaller one back in.

So I still remain unconvinced that a bigger cam is better. Especially considering what you could lose at the lower end...although on auto cars this is probably irrelevant.

 

I have not seen a graph where someone picked up 100 rwhp with a mere cam change sorry. If that were the case when KP changed from his "stock" z06 cam to the big cam he has now he would have picked up a lot in et/mph but he didn't, that wouldn't make sense if he gained 100 rwhp like your saying. He gained more by lightening his car.

I agree you want the best out of your setup. But simply saying for example with my old car making 526 rear wheel and putting in a cam from EPP and then I'd magically make 626rear wheel is just plain silly.

The most I've PERSONALLY witnessed was 50 rwhp gain and I thougtht that was a lot and very good.

 

I guess some setups would gain more from a big cam change than others.

Like say a 427, with a big blower, big heads...using a stock F-body cam, then going to a monster cam.

No doubt that would give a big power change.

But then, it would probably have been daft to put such a small cam in there in the first place.