formulaF302

Does anybody know anything pro or con about revolution marine cast aluminum exhaust and risers? Feel free to give me any opinion .....its would be for modified 502's putting out about 490-500 hp on a 30 ft formula with transmissions and TRS.... or email at [email protected] if you prefer ..... thanks.... Glenn

russ

I would like to get some feedback also. Going to be looking for exhaust in a couple of months.

Thanks

Russ

Dave1972

I was asking some questions about them as well and I contacted them via email. Sounds like a first-class operation but have never used their products. Their response is below:

David,
Thank you for your interest in our products. Our manifolds share similar designs to many of the popular performance manifolds and our testing on the dyno show they match up to the Gil performance manifolds very well, even squeaking out 5-8 more hp in the upper 5000s. We use a dry riser joint where all water is transferred through a hose to eliminate water ingestion from failed gaskets. We also employ a reversion dam which helps to control water drawn back up the riser due to long cam overlaps, and engine shut down.

Regards,

Todd Wondrow
Revolution Marine Inc.
[email protected]
www.revolutionmarine.com

formulaF302

I bought two sets and installed them. Everything lined up nice, and they sound better than stock. Hav'nt found a performance increase yet though, but I'm still playing with carbs. Some of the grinding marks on the risers were a bit heavy though and it made them look crummy, so I did spend some time reshooting them with spray can engine enamel though as a primer, wet sanding them with 400 grit paper, then doing it again a few times till they got smoothed out and then shooting them in black imron. They look fantastic now. I did have to modify the power steering bracket a bit to get the power steering belt to clear the water pump pulley. This was on an 86 Formula that had come from the factory with 454/330's and I'm still using all that factory hardware on the 502 Gen VI motors. Todd was a good guy to work with and did his best to help me out. So...if they last 15 years like the stock ones did I'd have to give them a definate "thumbs up".....

russ

Formula302

Where did you get yours?
How much did they cost per set?

Thanks

Russ

Caincando1

I've met Todd and he's a class act.

I was told that they have improved the casting so they are much cleaner looking now. I belive they are available in black or polished. They are priced quite resonable. I won't repeat the price becasue it was second hand info.

I haven't seen them in person yet. But I believe memebers Thirsty Turtle and Wildchild212 both have.

Brian

26sonic

i'm thinking of purchasing a set of the polished units for my basically stock 1998 502efi but wanted to know if they really made a difference performance wise ? and how they compare to other brands out there ?

NEXTASEX

I have seen them on e-bay everytime i have looked for manifolds.....just checked ebay 950.00 pair.

Caincando1

They will be comperable to or better than any brand offered.

Do some reseach on headers before you invest. You'll find that they usually don't make a difference on a stock motor. No matter what brand.

formulaF302

I got them off of ebay for around $850 per engine I believe.....