Is 400 RWHP possible without cam on a L99?

[saluki]

To do Rocker arms on an L99 wouldn't he need to do lifters since the stock AFM/DOD ones suck ass for the upgraded springs? IMO If he did rockers it would make more sense to just do a cam.

[pyroguy]

You might be able to get 400 to the wheels without a cam if you have some head work done, but if you're pulling the heads you might as well do a cam because there's not much more work required to get there.

[lazerlemonta]

Originally Posted by pyroguy

You might be able to get 400 to the wheels without a cam if you have some head work done, but if you're pulling the heads you might as well do a cam because there's not much more work required to get there.

I just can't imagine a L99 making 53whp less then a ls3 with the same set up.

[Sturgill_SS]

Its going to be tough.. The mods that it would take to get you to 400+ would make no sense to not just replace the cam.. Even a small cam could make a difference in power if you're worried about drivability.
BTW Lazer.. Seen LOD post your vids on facebook. Love the car man!

[Livernois Motorsports]

Just was showing our most popular package. But if you read the description I was explaining that without a cam swap or head upgrade you will end up just shy of his goal. But like I said you could do one or the other to obtain 400rwhp but most people do them at same time.

[LCPLPunk]

I'm trying not to pull the heads because if I do that then I might as well throw a cam in.


I can afford a $1500 cam install, but I don't plan on installing it myself so now I'm looking at at least $3k. I will do a UDP and ported manifold too so then thats like anouther 650.... :(

[pyroguy]

Originally Posted by lazerlemonta

I just can't imagine a L99 making 53whp less then a ls3 with the same set up.

Well to compare, my car had rotofab intake, bo white ported throttle body, kooks headers with cats and solo mach xl catback through an automatic transmission while my friend had rotofab intake, bo white ported throttle body stainless works headers with cats and stainless works retro chambered catback with a manual transmission. I made 365hp390tq, he made 427hp431tq on the same dyno.

[rontammy0]

Originally Posted by lazerlemonta

Throw on EWP and a crank scraper theres another 15 easy add a ported rod mod intake another 6-8. Lots of little things to get the power freed up. You have to open the wallet for the little things for sure. But thats the difference between joes FBO < average and going all out > not many of us lol

I have seen zero 400 whp l99s with anything but a cam. Zero....if there out there I need to see how they got there. I would like to see a build that includes every single mod you could do. But it doesn't seem that many...if any have done it.

[pyroguy]

Originally Posted by rontammy0

I have seen zero 400 whp l99s with anything but a cam. Zero....if there out there I need to see how they got there. I would like to see a build that includes every single mod you could do. But it doesn't seem that many...if any have done it.

I'm guessing if a L99 car made NA 400rwhp without a cam, it would involve head work in addition to every other bolt on you could throw at it. The problem is if you're that far into the engine 99.99999999% of people would go ahead and put a cam in the car. I mean unless you're trying to set some sort of stock cam record for speed why wouldn't you go ahead and change the cam out if you've got the heads off already?

[LCPLPunk]

Good point, I'm not trying to remove the heads.

[InFiD3ViL]

Originally Posted by saluki

To do Rocker arms on an L99 wouldn't he need to do lifters since the stock AFM/DOD ones suck ass for the upgraded springs? IMO If he did rockers it would make more sense to just do a cam.

Exactly my thought. It just doesn't seem feasible.

It is Lazer who has had me thinking of 1.85 ratio rockers for the last 2 years, but after pondering about for that length of time, it just doesn't make sense.

GM really shafted us with these AFM lifters.

[krisprz2010camaross]

Definitely possible! Before I had my stage 3 cam, ported AFR heads, and ls3 conversion done, my camaro was making 403hp and 397 lb ft of tq to the wheels on E85 and it was on a mustang dyno. So, would have made a little more if it was dynojet. That was also before I had my 3600-3700 multi disk stall installed.
I did everything I could do FBO (UDP, headers, exhaust, no cats, 102mm throttle body, fast lsxr 102 intake, vararam intake, carbon fiber driveshaft, upgraded stall, spark plug wires, spark plugs, injectors, fuel pump, 3.91 gears...) before I went the stage 3 cam and heads route. Was happy with it, but wanted more power. Kinda miss the drivability I had before, but love the chop and the extra NA power!

[InFiD3ViL]

Originally Posted by krisprz2010camaross

Definitely possible! Before I had my stage 3 cam, ported AFR heads, and ls3 conversion done, my camaro was making 403hp and 397 lb ft of tq to the wheels on E85 and it was on a mustang dyno. So, would have made a little more if it was dynojet. That was also before I had my 3600-3700 multi disk stall installed.
I did everything I could do FBO (UDP, headers, exhaust, no cats, 102mm throttle body, fast lsxr 102 intake, vararam intake, carbon fiber driveshaft, upgraded stall, spark plug wires, spark plugs, injectors, fuel pump, 3.91 gears...) before I went the stage 3 cam and heads route. Was happy with it, but wanted more power. Kinda miss the drivability I had before, but love the chop and the extra NA power!

Now that is full bolt on!

[IASS]

Originally Posted by LCPLPunk

I'm trying not to pull the heads because if I do that then I might as well throw a cam in.


I can afford a $1500 cam install, but I don't plan on installing it myself so now I'm looking at at least $3k. I will do a UDP and ported manifold too so then thats like anouther 650.... :(

Honestly if you can have the car down for a couple days and just take your time this is a fairly straightforward swap. The only pain in the ass things are the harmonic balancer (retorquing) and the oil pump pickup tube can be a rascal.