PRH
Well-Known Member
I’m looking forward to seeing how it all unfolds……. No matter the results.
I have said many times, there is more to HP than cfm. They can be related, but flow isn't the end-all be-all. I think the trick flow is a good example of that. And I also happen to know what the bloomers flow, and I'm not gonna say what the numbers are, but they appear to make power beyond what the flowbench would indicate.
11.8-12.0 dependingWhat's the comp, ratio going to be?
Any reason all the important data reads 0?
Not that I know of. That's what I was given when I purchased the engine. In that configuration the car went 113.9 mph in the 1/8 at 2870 lbs. We changed the cam, alcohol fuel, and a vacuum pump now it goes 116.6 mph at 2880 lbsAny reason all the important data reads 0?
this is kinda what my porter believes. He actually told me he can tell how good they are just by the SOUND. I know nothing about flow benches but my guy makes it "understandable"I have said many times, there is more to HP than cfm. They can be related, but flow isn't the end-all be-all. I think the trick flow is a good example of that. And I also happen to know what the bloomers flow, and I'm not gonna say what the numbers are, but they appear to make power beyond what the flowbench would indicate.
I'm curious how these numbers would stack up against the same combination on race gas. Just thinking out loud how much difference the e85 makes (if any!) at different points in the curve as opposed to gasoline.I dug out a sheet a customer sent me.
408 w-flat tops, TF heads with some rework, Wilson ported SV intake, PRH cam, 1.6 HS, E85 Book carb, 1.75-1.875x3.5 dyno headers:
View attachment 1716368572
Not saying I'm right but from what I've read and watched, seems like they will sacrifice almost everything else if they have to, to get the size needed to turn the rpm they want (peak/shift) without choking the port. And the better the shape the higher velocity their able to run. Hp per cfm has a fairly wide range seem like as long their in the ball park with flow it will work.Yep. You can say this until your tongue wears out but the vast majority of people will go right to flow.
It’s all about shape and sizing. Flow is down on the list of things to look at when flowing a head.
Impressive numbers. What intake manifold was used for this test?
It's a unported Super VictorImpressive numbers. What intake manifold was used for this test?
velocity with the small runners?That makes it even more impressive. Shocking honestly. A Super Vic has some small runners.
any chance you would throw it back on the dyno to see how much more HP it's making after the changes?
And lots of it.velocity with the small runners?
I'd love to , but time and money are holding me back. I'm deep into my W5 Dakota project. According to the Wallace power speed calculator it probably picked up about 50 hp with the cam swap, alcohol swap and Star vacuum pump. Wallace power speed calculator says that it takes 707 hp to run 116.6 mph in the 1/8 at 2880 lbs. BTW The AMX will be for sale later this year when I get my Dakota race ready.any chance you would throw it back on the dyno to see how much more HP it's making after the changes?
both time and money are limited in my world as well. just switching over to the W8 from the W2 cost more then i thought. all the little things add up quickly.I'd love to , but time and money are holding me back. I'm deep into my W5 Dakota project. According to the Wallace power speed calculator it probably picked up about 50 hp with the cam swap, alcohol swap and Star vacuum pump. Wallace power speed calculator says that it takes 707 hp to run 116.6 mph in the 1/8 at 2880 lbs. BTW The AMX will be for sale later this year when I get my Dakota race ready.
Behind the scenes we are progressing with the 408 dyno mule, and would really like to find a old milodon superstock oil pan and pickup to borrow for dyno testing. @Earlie A is going to buy the shortblock at the conclusion of our testing, and it will be going into a early A body, and I dont know if there is a suitable oil pan that fits those cars, that will be up to high rpm dyno testing. Definitely like to keep the bearings happy during our flogging!
PM me on the pan. We might work something out.