Its a 6.0, good link.

 

For comparison the stock LS1 cam specs :

01-02 F-body 197/207 .467/.479 116 LSA

The 02+ LS6 cam: 204/218 .551/.547 117 LSA

05-06 GTO 204/211 .525/.525 116 LSA

Heres something more amusing to consider, this is a stock LS7 Z06 engine with some high $ headers on it, not too much else, damned 427 is evil.




Weeeee, over 400 RWTQ from 3k-6300, yeah that will put an owie on the competition.

 

Thats a ridiculous powerband.

I drove my buddy's pro charged cobra recently and that was ridiculous, i cant even imagine how that LS7 feels.

 

torque drop off like a mutha!

I originally made the spreadsheet to compare my last car to a C6 Z06, and see what a Z33 6-speed would do to it. It was close, but things like wheelspin and drag weren't taken into account. I do have shift time in there. It can only do roll racing, too.

It's not ready for public use yet. I'll work on it a bit over the break.

 

Drop off ? its just got a nice curve to it

Compared to the dyno i can find for a twinscroll GT30R SR20, which makes *ALMOST* 300 ft lbs @ 4500, and holds to 7k

I'll take the OVER 400 @ 3k, oh crap its still climbing till 450 ft lbs at 4250, and slowly coming back down, to even if we compare it to the twinscroll GT30R at 7k, still being what 70 ft lbs ahead right around 6900 ?

You also gotta keep in mind thats the stock camshaft dyno, heres one for ya Ep, ported heads, cam, ported stock intake, headers, remember these are usually going for street performance with hydro roller setups, solid lifters and something more RPM oriented can be done also if you really wanted to.



400 RWTQ @ 4k, 4250 rshared_pm leaves you with over 450 rwtq, climing to over 520 ft lbs, and slowly gently putting you back down with still over 450 ftlbs at 6700

 

Eh, not the same. The first cammed one drops 125tq by redline which is 27% of peak. The second drops about 80tq, only 15%.

Tq drop-off isn't that bad as long as your drop-off ratio isn't greater than your next gear. Then you're in that situation where short shifting it makes it faster. Tq drop charts also have a pile more area under the curve than a flat chart if you compare peak HP numbers. That's why your cammed GTO plot is roughly equal to my old S13, even with 10% power difference. Area under the curve.

The tq number really doesn't mean as much as you think. Yeah, you might have 450tq versus my 330tq, but you're pushing through taller gears and shorter redline. Your first is 2.97x3.54, mine was 3.321x4.363. Multiply that out and the wheel torque is roughly equal! The down side is that because the overall ratio is shorter, I'll run out of gear faster. The difference is about 35% faster for me to run out. This is countered by my 15% higher redline (8k vs 7k). So the GTO setup adds to be more, but not by the amount of the tq difference. This is all in the spreadsheet. It's like staring at the matrix.

I'm glad to see that these big displacement motors can actually make the power!

So is that a 4k stall that's responsible for that bump in the chart?

 

Those cars werent available auto, its stick

It does mean what I think, its that I can have similar acceleration to a large turbo'd SR, while maintaining a car that doesnt have any sort of turbo lag, and cruises at low rpm, dont forget I can easily swap in that 3.69 or 3.91 ratio, for track events

And like I mentioned, if you wanted a flatter more rshared_pm biased curve, the cams are available for it
Heres one on a stock ci, stock headed LS1 346 ci, vs the 6.0's 364 ci, these are unported stock heads on it also.




Keep in mind, none of these have gotten into ported heads, the previous dyno's other than the LS7 one, were very mild cams, this last one is something a little more RPM biased, still on a hydro roller lifter, and something some people consider daily driveable