Summit stage 5 cam, c6 build progress.
That will be a nice converter. Not fun to install, but nice. 😊
So true apples to apples in the head test. It will wake up with the cam change.
My buddy Corey did Rocky Mtn last year with his Chevelle. Said it was a blast. He nearly won the whole thing.
A couple other friends are planning to do it this year.
So true apples to apples in the head test. It will wake up with the cam change.
My buddy Corey did Rocky Mtn last year with his Chevelle. Said it was a blast. He nearly won the whole thing.
A couple other friends are planning to do it this year.
That will be a nice converter. Not fun to install, but nice. 😊
So true apples to apples in the head test. It will wake up with the cam change.
My buddy Corey did Rocky Mtn last year with his Chevelle. Said it was a blast. He nearly won the whole thing.
A couple other friends are planning to do it this year.
So true apples to apples in the head test. It will wake up with the cam change.
My buddy Corey did Rocky Mtn last year with his Chevelle. Said it was a blast. He nearly won the whole thing.
A couple other friends are planning to do it this year.
I think the rodded stock intake and low lift cam contributed to the low gain from the heads. LS3 stuff needs as much lift as you can possibly get away with. The flow sheets show it on basically every version of LS3 head I have seen. If you didnt already have it coming, I would throw the hyd roller stuff out and go solid w/ a ported Fast and turn it up. .700 lift and supporting intake would do wonders. If you wanted to calculate the 8hp, I would look at your flow sheet on the Hooper heads and lay it over a flow sheet from similar set of OEM's. W: that .600 lift cam, you are probably getting barely a true .580 at the valve.
I think the rodded stock intake and low lift cam contributed to the low gain from the heads. LS3 stuff needs as much lift as you can possibly get away with. The flow sheets show it on basically every version of LS3 head I have seen. If you didnt already have it coming, I would throw the hyd roller stuff out and go solid w/ a ported Fast and turn it up. .700 lift and supporting intake would do wonders. If you wanted to calculate the 8hp, I would look at your flow sheet on the Hooper heads and lay it over a flow sheet from similar set of OEM's. W: that .600 lift cam, you are probably getting barely a true .580 at the valve.
I have yet to see anyone actually do it, but I have a theory that a solid roller w/ .700-740 lift on the intake, mid 230's duration w/ a ported Fast intake w/ ported stock 823's can make an easy 580-600whp. Maybe a touch more. Every combo I see has a max .640 lift hyd cam w/ .660 springs which means you never get to the sweet spot of that head. Honestly, that head is just getting started at .600.
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Verdad Gallardo I have yet to see anyone actually do it, but I have a theory that a solid roller w/ .700-740 lift on the intake, mid 230's duration w/ a ported Fast intake w/ ported stock 823's can make an easy 580-600whp. Maybe a touch more. Every combo I see has a max .640 lift hyd cam w/ .660 springs which means you never get to the sweet spot of that head. Honestly, that head is just getting started at .600.
I think the rodded stock intake and low lift cam contributed to the low gain from the heads. LS3 stuff needs as much lift as you can possibly get away with. The flow sheets show it on basically every version of LS3 head I have seen. If you didnt already have it coming, I would throw the hyd roller stuff out and go solid w/ a ported Fast and turn it up. .700 lift and supporting intake would do wonders. If you wanted to calculate the 8hp, I would look at your flow sheet on the Hooper heads and lay it over a flow sheet from similar set of OEM's. W: that .600 lift cam, you are probably getting barely a true .580 at the valve.
IDK, it'll sound great and it"ll rev to the moon, but I wonder how much more power it'll actually make. Lift is still in the same boat. Somebody needs to engineer a 1.9/2.0 rocker and get the geometry on point. The SB2/R0 heads use those ratios an more. I think there is big power hiding in the valvetrain as the LS/LT evolve.
IDK, it'll sound great and it"ll rev to the moon, but I wonder how much more power it'll actually make. Lift is still in the same boat. Somebody needs to engineer a 1.9/2.0 rocker and get the geometry on point. The SB2/R0 heads use those ratios an more. I think there is big power hiding in the valvetrain as the LS/LT evolve.
i do agree, it's better to do it in the lobe, but you also have some natural effects of going big that higher rocker ratios sometimes make it easier on the driveabilty side. There is no absolute answer, just have to experiment w/ each individual combo. I'm waiting on Summit to have a sale on a Spintron, lol.
i went back and didnt see a Fast on the list. I just saw mention of the ported stocker which gained 1hp. Then saw the 8hp gain from the heads. The interesting part of this is the fact that 1hp gained with the ported intake gives you a window into how much air the head is moving. You could probably reverse engineer some flow #'s of a stock intake flowed on a stock or ported stock 823 head and look at where the .550-.600#'s are and guesstimate that is actually how much is getting used when the valve is open. Maybe