Ls7/gen 4

[Aussie Mike]

Keeping the lift under 0.600 is probably not a bad idea too. I've got a set of dual springs on my motor now in preparation for the big cam but the lift is getting close to even their max before coil bind. I expect to be replacing springs every 20,000Ks or so as they go off under the extra loads.

What did the guys at TSP reckon you should use?

Cheers

[stiffy]

Aussie,


I emailed Jason last week and had no contact.

I called on the weekend and was informed Jason was on leave (nice to know).

The person I spoke to said he would email me something (still waiting) but he did mention the piston thing. I want a Cam/Head package without touching the pistons. IYO what would I expect HP wise for the Cam and heads seperately??


STIFFY

[Aussie Mike]

The MS4 has produced some big peak numbers in the state on unopened LS1 motors i.e just a cam change with the stock heads. I've seen Dyno sheets showing 420 RWHP. Combined with a set of CNC ported heads that number jumps to 450RWHP.

It'd probably make even more in a 6.0 motor

The thing is that it is a top end cam and the car may still be spanked off the line by milder camed motors making better torque.

Sounds good though.





Cheers

[hsv300]

unopened LS1 motors i.e just a cam change I would not class a cam change as unopened??

[Plums]

Once you've done a cam change it's not unopened anymore. Back when the big "race to the 11's unopened" was happening, the only thing you could do to the motor was change the valve springs....

[Aussie Mike]

I guess Unopened is not the right term. What I'm refering to is just changing the cam and valve springs. A good exhaust, a cold air intake and a tune. No other components other than the cam and springs in the motor being touched.

Cheers