Fun day at the Dyno!

[fastTa]

For whoever hasn't seen the article, Hot Rod Magazine posted their own stock LS7 headflow results. They were in Metric form, so I converted the LS7 flow data to standard:

[Performin Norman]

Good stuff there Kevin.

[fastTa]

Those are incredible off the seat, mid, and upper flow numbers for a factory head! This LS7 is just kick (_|_) in every way. I can't wait to see someone throw in a set of dished pistons to get the compression down and add some boost!

[Jay 02 TA ws6]

120 LSA ?!?!?! Wow!

[Craig 94 TA GT]

Those are incredible flow numbers. The flow is almost comparable to a moderately ported set of SB2.2 heads, up to .6 lift of course.

I just noticed something. LS6 heads flow very minimally more than the LS1 on the intake side, and somewhat more on the exhaust side.

[fastTa]

120 LSA ?!?!?! Wow!

Emissions and gas mileage.

[fastTa]

Those are incredible flow numbers. The flow is almost comparable to a moderately ported set of SB2.2 heads, up to .6 lift of course.

I just noticed something. LS6 heads flow very minimally more than the LS1 on the intake side, and somewhat more on the exhaust side.

I haven't personally seen a set of LS7 heads, but from what I've heard, GM (or actually Lotus) left a little on the table. I bet there is room for another 50 HP in just additional headwork.

[Performin Norman]

Here's a pic and a vid, just for the heck of it.


Video
http://performin.homeip.net/videos/06z06.mov

Without the filter.

[Steel2686]

Just awesome, Norm. It's nice to see GM isn't fooling around with their "factory tuners". Putting that much torque and HP on the ground - bone stock no less - is incredible.

I'm just surprised with the low numbers the '01 put down (relatively speaking, of course). Is it an automatic?

[Jay 02 TA ws6]

Emissions and gas mileage.

Yeah, but 7,000 RPMs with that LSA is pretty amazing!!!

[Performin Norman]

Just awesome, Norm. It's nice to see GM isn't fooling around with their "factory tuners". Putting that much torque and HP on the ground - bone stock no less - is incredible.

I'm just surprised with the low numbers the '01 put down (relatively speaking, of course). Is it an automatic?

I don't know why it is so weak. Maybe it was abused before I bought it. It actually feels strong. It is fat as a pig too. I would have had him tune it but what is the point. My 02 put down 372. Oh well, it won't matter here in a couple months.

[Jay 02 TA ws6]

I don't know why it is so weak. Maybe it was abused before I bought it. It actually feels strong. It is fat as a pig too. I would have had him tune it but what is the point. My 02 put down 372. Oh well, it won't matter here in a couple months.

Looks like the C6 Z06 would benefit from a little tune as well

[fastTa]

Yeah, but 7,000 RPMs with that LSA is pretty amazing!!!

They make up for the wide LSA with the big exhaust split and relatively higher lift on both side. Pretty smart cam design to make good power and still pass emissions.

[Steel2686]

I don't know why it is so weak. Maybe it was abused before I bought it. It actually feels strong. It is fat as a pig too. I would have had him tune it but what is the point. My 02 put down 372. Oh well, it won't matter here in a couple months.

Again... weak is a relative term.

Still, I was surprised to see the rwhp numbers below the 350 mark. I would have guessed somewhere around 365. Either way, it won't matter as you said. Plus your '06 could be a factory freak.

[Performin Norman]

Again... weak is a relative term.

Still, I was surprised to see the rwhp numbers below the 350 mark. I would have guessed somewhere around 365. Either way, it won't matter as you said. Plus your '06 could be a factory freak.

I hear ya. I was thinking it would put down 345 to 350. I didn't expect nearly as much as the 02 but expected more.