Fast Fred's Secrets of the OMC MOD50's Thread #1

[Jeff Akers]

I have a factory Mod 50 exhaust and part of an exhaust that is similar to the factory Mod 50 exhaust that was built by Ray Nydahl. I am hoping that one of those will run well on a non-factory tower. I'm not yet sure what kind of tower I'll use.

David,

You should have sold that "THING" to me a long time ago!

I think it would flow nicely on my mid

[Fast Fred]

well gots to go for now , gots more hear, see what else we can see
or maybe i'll see yous in FL, at the airport i herd, someware

[NERSTROM]

David,
Not sure if you have to exhaust through the midsection or can run an open stack. The motor Fred used for the Mod 50 record had the exhaust into the midsection because of the rules for Mod 50. We could have just as easily made a system which came out above the midsection. We also raced this setup at the alky nationals in Minn. If you want to use one of the cast systems use the OMC parts. Ray's system did not require machining the block and compromised the exhaust passage. Look very closely at the rest of the Mod 50 system when you design yours, especially the area ratios. You will be surprised by what you find.

[David_L6]

David,
Not sure if you have to exhaust through the midsection or can run an open stack.

I can run any tower and any exhaust. No rules on those.

[David_L6]

David,
Look very closely at the rest of the Mod 50 system when you design yours, especially the area ratios. You will be surprised by what you find.

If you knew me, you'd be surprised if I found anything. I don't have a clue what I am supposed to be looking for and probably wouldn't realize I was looking at it if I was looking at it.

[Fast Fred]

on the exhaust, the distance from the port to the back of the exhaust plate is grater, the spent charge turns once (down)

[Mark75H]

I'm still confused. Greater in relation to what?

[Fast Fred]

stock,stock plates, the mod50 plates have more volume right in front of the port window, just like that Runne set , you follow?

[David_L6]

David,

You should have sold that "THING" to me a long time ago!

I think it would flow nicely on my mid

I like the looks of your exhaust! I bought that thing for a knucklhead over in Mississippi while I was chasing parts for him......