tennerv8

iTrader: (7)

Holy cam swap results batman!

Gsmwover

Cool thank you for the info Matt! I think im going to pull these 918's anyway they are not helping my cause so big cam here I come!

86lxnotch

iTrader: (3)

matt 1218's are .600 and the 1518's are .650

denmah

iTrader: (2)

yeah, i know that, did i mess it up in my post.

86lxnotch

iTrader: (3)

no you just put they are good for .600 somethin lol

Checkmate

iTrader: (2)

damn that is nice, should definitely move out.
Maryland INTL raceway opens first weekend of march. Can't wait to see the new track #'s.

denmah

iTrader: (2)

i wrote if you have martin spec you under .600 use the 1218 if over that use the 1518s they are only a little more money

Sales@Tick

iTrader: (3)

Thank you. Guys will tell you all day long not to mess with an aftermarket cam and that the LS6/LS9 etc. cams will do the job and they will, but 75rwhp for 400 bucks? Seriously, that is an awesome return for the investment, not to mention your car will have an idle that you will love turning the key over to listen to, and it will perform better overall. There is no denying that.
I have lobes that would work well for something like this. It would need to be custom though.

denmah

iTrader: (2)

whats better for the gen3 cathedral port turbo car, generally a 600+ lift or under 600

Gsmwover

Please Martin by all means due tell!!!! Send me a PM and I can send you a parts list thats on the car and or waiting for the car to go down the track and will be put on the car...

I too would like to know this!!! Looking for the best bang for the buck, but not scared of spending money also!!!

86lxnotch

iTrader: (3)

ok re-reading i see what ya meant! anyways info is there for whoever isnt sure

scatesracing

Awesome gains. Money well spent.

CameronVic

iTrader: (5)

Denmah is going 9.70s with no nitrous this spring. You heard it here first.

atomic 6

Should be interesting, seeing what it will 60 ft now, and the rest of incrementals.

For 400 bucks I would just turn up the boost instead, But since(I read somewhere) you had that cam from the G8, might as well see how it sounds in with the 5.3.

95bowtie

I knew there was a restriction there just judging by you making 20+ psi and nitrous to make only 700whp.

Like I said before I'm on a 76mm rearmount making 610whp on 10#. Only difference in our motors was the cam. That's all I have, the rest is showroom stock.

My cam is a 238/240 .600/.605 112 lsa

Sales@Tick

iTrader: (3)

I don't understand why guys still want to argue that spending 400 dollars on a cam and getting a return of 75rwhp isn't money well spent. What happens when you turn the boost up and nothing happens?

Boost is a measure of restriction as the guy above me pointed out. Denmah is now making the same amount of power on 11psi that he made with a much higher boost level before. If that is not the most tell tale sign that the restriction has been removed(The Camshaft was the restriction) then I don't know what else to say. Everyone has their own opinion and I respect that, and because of that I won't resort to name calling or dirt slinging to make my opinion known.

I know I quoted your post, but I'm speaking in general terms here so don't take it as me speaking directly to you bud.

PM sent.

skinnies

iTrader: (33)

The problem becomes when you have a power restriction(stock shortblock) before the cam is a restriction. Most can use the stock l33 cam or ls6 cam and be fine at sub 850rwhp IF they build everything right. We've done it as have others plenty of times.

Now will your cam gain power over an ls6 cam, probably, but is it needed at sub 850rwhp on a stock shortblock, IMO no.

Sales@Tick

iTrader: (3)

So every turbo car in the world has a stock short block? 700rwhp in Denmah's case is not 850rwhp and that turbo is going to be pretty much done at 20psi where it made 700rwhp on his car. So if it's a restriction at 20psi, the turbo is done right around 20psi, how does he get to 850rwhp?

This has nothing to do with my cam, his cam or any other vendors cam. It is about returns on the dollar amount invested. That is all. I'm tired of arguing about this stuff.

offaxis

iTrader: (19)

I am alittle confused since I always was led to believe that the 799 and 243 are the exact same head with a different casting number . But you are saying that one is giving you lower compression. was your 243 head milled at all?

HRHohio

I think the big takeaway from all this is that with the cam swap, he was able to go from 600-611 rwhp while dropping from 20psi to 12psi. That's a HUGE improvement in efficiency of the system. 8 psi drop in pressure and 11 hp more! That's awesome! I would love to see that in any setup.

While true, you could just turn up the boost a few more pounds to get to 700, but doing that has some drawbacks. Think of the heat generated by 30 psi vs a better flowing system that would do it at 20. We already know that a reduced IAT = Safer setup. Not to mention, I've seen a friend's LS6 intake crack and blow out the back at 26 psi. I don't think they were designed for that much pressure, not to mention the strain on the rest of the systems (30 psi backpressure on the fuel system, increased backpressure on the engine to push 30 psi through the compressor, blown boots/couplers, etc).

Lastly, with the lower LSA (valve overlap), I'm sure there an improved hp/tq curve due to faster spooling. Overall, my opinion is that this cam swap was a huge success. I'm glad Matt and Martin shared the results with us.

As for maxing out the shortblock, there's a huge gap between where he is now (~650) and where we've seen these engines go (Hot Rod Big Bang Theory ->1200). I think this cam will help him get there better than an LS6/LS9 cam.

And I'm sure he'll let us come along for the ride!