That is a fast port. That will work great. Thanks for sharing.SpeierRacingHeads wrote: ↑Sun Sep 01, 2019 6:31 pmPort is about 188cc. 2.08 LS valve. Flows 300@.500 and 305@.600, and 308@.700
4.165 x 3.48
Scat 9000 crank and rods
Weisco Pro Tru pistons
TPiS 231/236 roller cam
.580 lift
Morel lifters
NHRA legal stocker pan
Bench Data
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Re: Bench Data
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Re: Bench Data
Carnut1 wrote: ↑Sun Sep 01, 2019 7:24 pmThat is a fast port. That will work great. Thanks for sharing.SpeierRacingHeads wrote: ↑Sun Sep 01, 2019 6:31 pmPort is about 188cc. 2.08 LS valve. Flows 300@.500 and 305@.600, and 308@.700
4.165 x 3.48
Scat 9000 crank and rods
Weisco Pro Tru pistons
TPiS 231/236 roller cam
.580 lift
Morel lifters
NHRA legal stocker pan
I'm going to dyno it. Just will need to be with a manifold and carb. My dyno I use doesn't have the injector setup. And that would be a PIA.
Re: Bench Data
You mean a "Rectoval?"
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Re: Bench Data
I think it’s going to be surprisingly good. Looking forward to seeing the dyno resultsSpeierRacingHeads wrote: ↑Sun Sep 01, 2019 6:31 pmPort is about 188cc. 2.08 LS valve. Flows 300@.500 and 305@.600, and 308@.700
4.165 x 3.48
Scat 9000 crank and rods
Weisco Pro Tru pistons
TPiS 231/236 roller cam
.580 lift
Morel lifters
NHRA legal stocker pan
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Re: Bench Data
It may be helpful it you flow it all together with cylinder head, carb and intake vs. Injection and throttle body before you dyno. If the airflow is close you will get a fair idea how the other will be.SpeierRacingHeads wrote: ↑Sun Sep 01, 2019 9:21 pmCarnut1 wrote: ↑Sun Sep 01, 2019 7:24 pmThat is a fast port. That will work great. Thanks for sharing.SpeierRacingHeads wrote: ↑Sun Sep 01, 2019 6:31 pm
Port is about 188cc. 2.08 LS valve. Flows 300@.500 and 305@.600, and 308@.700
4.165 x 3.48
Scat 9000 crank and rods
Weisco Pro Tru pistons
TPiS 231/236 roller cam
.580 lift
Morel lifters
NHRA legal stocker pan
I'm going to dyno it. Just will need to be with a manifold and carb. My dyno I use doesn't have the injector setup. And that would be a PIA.
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Re: Bench Data
It's a street car, I would never race it.econo racer wrote: ↑Mon Sep 02, 2019 5:43 am Chad have you made a pass at the drag strip yet? Something to get a baseline from?
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Re: Bench Data
Peak of 6200 cfm demand is about 290ish. 379ci
Better line of sight the speeds over the short side can be higher is what I found. I bet its pretty dam good. fast.
Better line of sight the speeds over the short side can be higher is what I found. I bet its pretty dam good. fast.
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Re: Bench Data
Chad, with your super-stock heads in mind, what's your velocity "uncle point" over the turn when you're not bound by rules? If it's pushing 420 fps but not separating on the bench up to .800 lift, is that a bad thing in this particular application?
It's not like a circle track deal where you're afraid it's going to trip over it's tongue on the back stretch.
It's not like a circle track deal where you're afraid it's going to trip over it's tongue on the back stretch.
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Re: Bench Data
This is a velocity chart with the different velocities shown in stepped bands of colors.
It illustrates what is going on when you raise the top of a port.
It illustrates what is going on when you raise the top of a port.
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Re: Bench Data
Chad, I`m thinking leave as is, put your whole induction system together and flow it. That should slow things down. That CFM and velocity would really help part throttle response.
Re: Bench Data
Doesn't change as much as one would think.Steve Haaf wrote: ↑Mon Sep 02, 2019 7:08 pm Chad, I`m thinking leave as is, put your whole induction system together and flow it. That should slow things down. That CFM and velocity would really help part throttle response.
Please Note!
THE ABOVE POST IN NO WAY REFLECTS THE VIEWS OF SPEED TALK OR IT'S MEMBERS AND SHOULD BE VIEWED AS ENTERTAINMENT ONLY...Thanks, The Management!
THE ABOVE POST IN NO WAY REFLECTS THE VIEWS OF SPEED TALK OR IT'S MEMBERS AND SHOULD BE VIEWED AS ENTERTAINMENT ONLY...Thanks, The Management!
Re: Bench Data
Walk in the park. 500 tq is more of a challenge than the 500 horsies but neither should be much trouble at all for something with some effort thrown at it. There are out of the box heads that could get that done. I have a suspicion you are intentionally understating your goals because of the TPI///understandable but dynoed with single 4.//solid roller 379 with ported heads and manifold////570 plus or its broken.SpeierRacingHeads wrote: ↑Mon Sep 02, 2019 1:12 pm String of 500hp and string of 500 torque, peaking at 6200ish
Yes, small solid roller