Drag Boat Race

LivermoreDave wrote:

1. Is the Lenco unit used as a transmission or an "in-out" box?
2. If the Lenco unit provides an overdrive increase, what's the overdrive percentage?
3. If an increase in overdrive exist, it's hard to hear in the video although you can sure see the prop speed increase!

Dave.

1. The case bolted to the bell housing is not a trans per se but a clutch, technically speaking. Ultimately, it serves the same purpose as an in/out on the v-drive gear box.
2. Most Lenco 2-speeds in 8-9 second drag hydros have a low gear that is in the 30% underdrive range. I have a two speed drag hydro that's been stashed away for some years now, it's Lenco CS-1 has a low gear that is 32% under...but my boat was previously powered with a blower engine so that gear (and it's Casale v-drive gear) might change. But that's the ball park for you.
3. Right, because Ronnies boat ain't shifting. Yes, a shift is obvious and distinct. And the spray behind Ronnie's boat "cleans up" (at 8 seconds in the video) pretty much because the boat finally blows the tail (to the uninformed, "blows the tail" means that the stern of the boat rises out of the water; hydros ride on 3 points: the two front sponsons and the bottom half of the propeller).

I looked Ronnie's boat over and it is a very nicely prepared drag boat, let alone being one of the most winning and sought after brands made (KurtisKraft 501).

Paul

Lem Evans wrote:B.T.W. there were 8 boats in the class...One BBF w/carb & gas [Ronnie] and six blown BBC with injected methanol .....I assume the BBC had green oil.

I'm guessing that Leo with the blown Big Block A-headed Ford, Texas Tunnel didn't make it this year. He only makes it to only so many NON association races other than his association every year.
At least he runs gasoline and Red Line oil... lol. I think that oil is turquoise though.

I didn't go looking for them .....but... I was told that the Michigan Mafia was there.

Lem Evans wrote:I didn't go looking for them .....but... I was told that the Michigan Mafia was there.

I thought the class you listed was also his class and I didn't see a supercharged big block Ford listed; must be a different class; props, jets, hydro's, flat bottoms ... I can't keep track.
Us uneducated and uninformed about drag boat racing get those things all mixed-up sometimes, LOL.

Sounded great!
Do they have to heat the prop like we do tires

rmcomprandy wrote:

Lem Evans wrote:I didn't go looking for them .....but... I was told that the Michigan Mafia was there.

I thought the class you listed was also his class and I didn't see a supercharged big block Ford listed; must be a different class; props, jets, hydro's, flat bottoms ... I can't keep track.
Us uneducated and uninformed about drag boat racing get those things all mixed-up sometimes, LOL.

Ronnie runs the 8 second class. i think your guy is in the 9.