MavrikTA

iTrader: (27)

Just got off the phone with Jon over at TSP(great guy by the way). He reccommended running the MS4 with their LS6 stg1 heads. Im wanting to keep from flycutting and run on a stock bottom end. Anyone here running this setup(of course with headers and such)? Id be curious to know what your actual numbers are. Jon is thinking mid to upper 400's. Any advise? Thanks.

Beasst8

iTrader: (1)

I am right in the middle of this swap as we speak. Car is tore down and H/C will be here tuesday. , Anyway, no need to flycut or anything special. Look at my sig on the IN WORK section. The only other thing I can think is the Injectors. They are not a MUST, but a good idea. My tuner said that they have an MS3 that is running the stock injectors to 105%. TSP told me that they made 550 flywheel with this package so im hopeing for 440ish. I made 340 through my chokemaster exhaust. I got a cutout now. So the dyno will prove the results of that. Good luck.

Beasst8

iTrader: (1)

Oh and its a good idea to get either TSP to Mail a tune, or get a base tune prior to the first startup. A little easier to drive to the shop after the install. Unless you are getting a local shop to do the install.

Fad2blk_98

I have this exact setup in the car right now, but working on a coolant bolt issue before going to the dyno. Should have some numbers by the end of next week though and I'll post them up with video.

SVT THIS

iTrader: (27)

I have seen awesome numbers from TSPs MS3 cam and the PRC 200cc Terminator heads with a 90/90 setup. I believe his hp was over 480. You won't have to flycut with the Terminator heads with the MS3, you will have to with the MS4. You will be fine with most any cam under the size of a 242/248 with stock valved LS6 heads.

Fad2blk_98

He won't have to flycut with the MS4 if he stays with the stg 1 LS6 heads. Only if he goes to a stg2.

JZ'sTA

iTrader: (23)

Why not go with a smaller cam and more compression?
Make the same power, have less valvetrain ware, and how a more streetable car?
Like a Torquer2 with the same heads milled to 62cc's and a .040 gasket...

01blkz

iTrader: (3)

i'm about to pick up the ms4 and keep the stock heads for a lil while. from what i've heard/read and talked to tsp it has no issues at all on dd vehicles and is very streetable. i want the lobe and aggressive-nessss

MavrikTA

iTrader: (27)

I inquired about the MS4 and stg2 heads and he said there would be interfenence. I like the numbers of the MS4 because it looks like it will have the screaming top end of the MS3, but with better midrange. My only concern, is with the LS6 heads combustion chamber size will cause me to lose that midrange?

SVT THIS

iTrader: (27)

You won't lose midrange power, you will pick up power everywhere with the addition of heads. However, you will have less midrange and torque with the larger (unmilled) combustion chamber and the 240ish CC intake runner. The larger combustion chambers will hurt your compression. You can fix that by milling the heads and running a .040ish sized gasket. You will need to flycut with that route with that cam (unless you run ETP or TEA Trickflow). The LS6's also have a 240ish intake runner due to the CNC process. This causes less port velocity than the smaller runner heads (225, 215, 205, 200) which will affect your in the curve and peak numbers.

If you are going to go with a TSP head/cam combo, I believe the 200cc Terminators and the MS3 will make a quicker car than unmilled LS6's with the MS4 in cars with equal mods. I haven't seen a race though, so it is only speculation. Anyone else correct me if any of my info is incorrect.

QuickSilver

iTrader: (22)

i should have this combo at the N vs S shootout.
Josh

The Dragon

iTrader: (6)

You heard right.

If you can't daily-drive this cam on a set of decent heads then your tuner needs to be fired

Cold-start, hot-start, whatever start it actually behaves better than my MS3 cam did.

You will hear a whistle from the air rushing up through the intake system . . . reminds me of a supercharger

01blkz

iTrader: (3)

how do u like ur ls6/ms4 combo?

4yall2nv

iTrader: (3)

hey dragon, have you gone to the dyno or to the track?

SDMForever

upgrade your springs, retainers and pushrods trust me that cam has a pretty big lift

The Dragon

iTrader: (6)

With any cam I would recommend upgrading the entire valvetrain and pushrods. My cam card actually said .651 int and .610 exh

Don't cut corners when modifying your motor; it will be more costly in the long run if you do. I know from experience when I didn't upgrade my oil pump on my first H/C NA set-up

I'm gonna try to get to the dyno and rip it all motor and on the shot Monday

And I posted my impressions of the cam in a thread the other day . . . the cam behaves BETTER than my MS3 cam did; that's just crazy for a cam of this size

I haven't taken it above 4K yet (only have 80 mi. since install) because I installed a host of other parts including rod bolts along with the MS4.

The power increase in the lower rpm's at part-throttle is substantial; I was VERY pleased in that department so far.

I'm gonna rip this b!tch to 7100 rpm's tomorrow though