Fear VVT No More....Mast Motorsports Stage III Track Package adds up to 125 rwhp!

[MastMotorsports]

L99 Guys, FEAR VVT NO MORE! Mast Motorsports Stage III Camaro L99 Track Package p/n 981-203 will get you around 630hp at the flywheel! (With 1" 7/8 headers and CAI, sold seperatly) This package includes the following:

L99 VVT cam for automatic transmission Camaros
Mast premium nitrided valve springs
Mast phase restrictor
Mast 12 degree LS3 cylinder heads
Mast stainless steel intake and exhaust valves, retainers and locks
Mast 8.150” pushrods
Valley cover
LS7 lifter kit (to replace the DOD lifters)
Lifter buckets

L99 Track Packages:
Stage 1 p/n 981-201 up to 68 RWHP
Stage 2 p/n 981-202 up to 78 RWHP
Stage 3 p/n 981-203 up to 125 RWHP


For more information goto: Track Packages

[trudawg660]

videos and dyno sheets would be nice

[Brettscamaro]

Prices

[trudawg660]

http://www.byunspeed.com/product_inf...ducts_id=12441

[RedJewel2SS]

when you factor in installation costs, it looks to be cheaper than a supercharger with the same amount of power! NICE!!!

[trudawg660]

some people like to stay N/A though

[Heliwrench]

You claim +125RWHP for your stage 3 LS3 package...

What are your stock dyno numbers for an LS3? 630 from a heads cam seems kind of high unless you're looking at like a 20+% drivetrain loss on an LS3 and even higher on an L99.

Maybe I'm an idiot though.

[Oldrocker]

Originally Posted by RedJewel2SS

when you factor in installation costs, it looks to be cheaper than a supercharger with the same amount of power! NICE!!!

I wouldn't think so. The kit doesn't appear to include a new torque converter (I assume one would be needed to make the power useful), headers, CAI or a tune. There is a lot more labor involved replacing a cam and heads than to install a super charger, not to mention the labor needed to install the torque converter. I would rather have this package for my car than a supercharger though.

[thesnoopster]

I think Matt @ Tune Time did an article with most of this package and with DR's and stuff he ran high 11's all motor with the test Camaro.

Super Chevy Article

For the price of this package for the VVT Cam and stuff and clicking high 11's on all motor... I must say this sounds tempting.

[1977and2010]

I'm having trouble with the numbers. These packages are for an L99 which is 400 hp at flywheel. Stage 3 says it adds up to 125 hp. But it also says up to 630 fwhp. Not trying to be a smart ass but I'm adding 400 plus 125 = 525, is there a typo?

Just saw that it says 125 rwhp, my bad.

[Kyle2k]

Just curious if there is any surging or driveability issues with the stage 3 cam?

[thesnoopster]

Originally Posted by Kyle2k

Just curious if there is any surging or driveability issues with the stage 3 cam?

Good question !

[Heliwrench]

Originally Posted by thesnoopster

I think Matt @ Tune Time did an article with most of this package and with DR's and stuff he ran high 11's all motor with the test Camaro.

Super Chevy Article

For the price of this package for the VVT Cam and stuff and clicking high 11's on all motor... I must say this sounds tempting.

That article cleared up this up a bit. That dyno had an 18.5% drivetrain loss (400FWHP made 326RWHP)

Given that loss, their final result of 452RWHP would equal 555FWHP.

while the flywheel HP may be a tad high in the original post.... that article does indeed state a 126HP gain, 46HP on the heads alone.


Those heads are sex and I want them!

[Kyle2k]

Originally Posted by Heliwrench

That article cleared up this up a bit. That dyno had an 18.5% drivetrain loss (400FWHP made 326RWHP)

Given that loss, their final result of 452RWHP would equal 555FWHP.

while the flywheel HP may be a tad high in the original post.... that article does indeed state a 126HP gain, 46HP on the heads alone.


Those heads are sex and I want them!

As far as I know he was running the Stage 1 cam with the heads too, not the stage 3 cam!