Engine Dyno Guesses anyone
Thread Starter
Le Mans Master
Joined: Mar 2001
Posts: 6,241
Likes: 1,014
From: Watkinsville, GA and Glen Cove, NY
Re: Engine Dyno Guesses anyone (Turbo-Jet)
Just for comparison, the former version of this 502 with a hydraulic flat tappet came of 220 @ .050 and .500 lift and the iron rect. port heads made 353 horsepower at the wheels and that was with the probably very optimistic compression ratio of 8.75 to 1. It was dead by 5200 rpms, so I have to believe I will be able to pull at least 500 at the wheels which should be at least 600 at the crank.
Safety Car
Joined: Aug 2001
Posts: 3,892
Likes: 13
From: Pettis Performance 565 with two stages of Nitrous Supply nitrous 1.082, 4.61 at 155, 7.17 at 192
Re: Engine Dyno Guesses anyone (69ttop502)
Turbo jet: I see what you mean, it all depends on your definition of "Streetability"
Mine is a 620 hp 454 with two stages of nitrous, trying to make 800 rwhp. How far off is that from your definition of streetability :lol:
69Ttop: Do you plan on a chassis dyno run as well, would be interesting how the numbers compare
Mine is a 620 hp 454 with two stages of nitrous, trying to make 800 rwhp. How far off is that from your definition of streetability :lol:
69Ttop: Do you plan on a chassis dyno run as well, would be interesting how the numbers compare
Race Director
Joined: Jan 2000
Posts: 13,024
Likes: 2,266
From: Corsicana, Tx
2020 C2 of the Year - Modified Winner
2020 Corvette of the Year (performance mods)
C2 of Year Winner (performance mods) 2019
2017 C2 of Year Finalist
Re: Engine Dyno Guesses anyone (69ttop502)
It would be neat to see a back to back test of the Victor against the Holley. From what I've been told, the Jr. is the easiest to port match to the AFR's unusual port radius. It has enough meat to work with.
Is it going to be dyno'd with belt driven water pump or electric?
Let us know what temp it likes. Every engine seems to have it's own preference and they can cool or warm it quickly on the dyno to see what it likes.
This is going to be a really sweet little street motor. I think you're going to love it! No need to be radical if you build it big enough right?
I've got some pictures of mine where we took a 11.0 comp domed 350 piston and turned it sideways and dropped it into the cylinder! It goes all the way through!
JIM
Is it going to be dyno'd with belt driven water pump or electric?
Let us know what temp it likes. Every engine seems to have it's own preference and they can cool or warm it quickly on the dyno to see what it likes.
This is going to be a really sweet little street motor. I think you're going to love it! No need to be radical if you build it big enough right?
I've got some pictures of mine where we took a 11.0 comp domed 350 piston and turned it sideways and dropped it into the cylinder! It goes all the way through!
JIM
Thread Starter
Le Mans Master
Joined: Mar 2001
Posts: 6,241
Likes: 1,014
From: Watkinsville, GA and Glen Cove, NY
Re: Engine Dyno Guesses anyone (69ttop502)
John, yes I do plan to chassis dyno it at the same shop I did the previous chassis dyno pulls. I am very curious as well. Jim, not sure on the water pump but that big 615 cube motor was on there with an electric but I suppose I can use whatever I want. Maybe I will try a pull with each manifold to see what happens. Would love to mess with the exhaust as well like capped and uncapped JCL baffles too but don't know if it will work with the dyno set-up. He runs mufflers after the headers and then a couple of huge mufflers right before it leaves the building because he is in a residential area. He also monitors each individual cylinder for temp. and air fuel and a bunch of other stuff. Help me understand what to look for and some good questions to ask. Thanks everyone, Bill.
Thread Starter
Le Mans Master
Joined: Mar 2001
Posts: 6,241
Likes: 1,014
From: Watkinsville, GA and Glen Cove, NY
Re: Engine Dyno Guesses anyone (427Hotrod)
By the way Jim, love the image of an 11 to 1 piston being swallowed by that 540. Scary huh. Hopefully I will only be 200 horsepower behind you and John with that laughing gas.
Burning Brakes
Joined: Feb 2001
Posts: 854
Likes: 0
Re: Engine Dyno Guesses anyone (69ttop502)
Hey Bill. Find out how much space he has to work with. And find out what size adapters he would need to try the STS Baffles. I can get some made up. We can hook up to his set up. JCL :yesnod: :yesnod:
