Good fun C/M vs A/C racing

Waterthunder

Well-known member
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I was at one of our block parties last night in my neighborhood. For those of you that don’t know everyone in my neighborhood has two airboats in their yard. There is no where else I would rather live and pretty much everyone here has built their own airboat. Our hood is about 50/50 when it comes to car motor and a/c motor boats. Well at all these gatherings it comes down to me Jay and Quick Diesel and sometimes, Matthew, Scott and a few others arguing the old car motor vs A/C motor. Funny it always ends the same. Were all good friends and know the other guy’s knows what the hell he is doing. Jay and Joey have always had very fast boats and sometimes the fastest. We are always battling back and forth but at the same time will help each other out in a second.

So once again the take of the gearbox and run me comment came up. I said I only have a 360 cubic inch motor and you have a 540 cubic inch motor I guess they didn’t think that was a valid point! So I finally said if I build a 350HP DD car motor and stomp your O-540 what else will you have left to whine about! After a long pause they said that will never happen. So I said let’s make a bet Jay bounced back OK how about $1,000, I said do you really wanna do that he said your right how about a 12 pack. And it hit me these guy’s are fast and have flown a boat. I have seen Jay test and try three different bottoms on a boat in three day’s. So I suggested if I win they must place a large sticker on their rudders that say’s aircraft motors suck and if they win I must place a sticker on my rudders that say’s car motors suck! Right then everyone around this very heated debate started going nut’s. We are all gonna have fun with this. P.S. I told Jay to write the rules he would prefer and submit them to me both boats will have to be considered ride boats with two seats! This will take a while because we are all tight money wise but it’s gonna be one hell of a fun build up.
 
if you build a 350hp sb that will perform like a 540 a[c i want ten of em, the airboat world will beat a path to your door, your talkin dd right not geared 350 hp
 
WELL I PROMISE IF ANYONE CAN MAKE IT HAPPEN dAVE CAN . CANT WAIT TO SEE THAT STICKER ON HIS RACE BOAT LOL
 
It will be a DD car motor that is equal to or better then Jay's 0-540 which run's better then most O-540's. Also the sticker will be placed on the boat that looses in this competition! This is gonna be fun!
 
That sounds like what we call some really "GOOD BULL"! It ought to be a good fun rivalry project. Yall might want to charge some admission to the race day--by the time yall are done with the project--all the hype might bring everyone out of the woodwork to come watch the "Showdown"
 
with all due respect dave i think your crazier than i am, first you have to make 300 ponys at 2700 rpm, naturaly asperated with nothing better than 100ll :shock:
 
I believe Dave can do it, but the motor may have a short life to perform that well, (one trip, WOT, drag racing style :lol: ). :wink:




Maybe build two identical engines, one for a dyno run, one to race once. :lol: :lol: :lol: :lol: :lol:


Just kidding Dave, just got all boosted up by the Brewster yesterday, at the swap meet. :D
 
I aint so much jealous about the motor idea, but I sure qwish I had bought property out tere in the 70s when it was only mildly overpriced ! Damn ! What a place to live ! Maybe I'll win the next Lottery draw and buy out somebody out there LOL ! What a dream !

Good luck Dave, I still gotta get by and yack with ya soon.

Scotty
 
Hey White Bear I know of a house for sale out here that ain't on the market. The owner is not greedy and in his words I want to sell my place to someone who belongs out here and will fit right in with the community! Give me a call if you may be interested! As for the bet it will be reliable or I will not do it! Do you realize even if it was a race only DD and it won but blew up how much the haters will be talking trash! I think Joey said it will not last a year and I will gladly take on that bet too!
 
plumcrazy said:
with all due respect dave i think your crazier than i am, first you have to make 300 ponys at 2700 rpm, naturaly asperated with nothing better than 100ll :shock:


can easily be done with a caddy,but dont think thats what dave has in mind though. easily as in if you got 8 grand to blow i guess.(for a caddy build)
 
i was talking caddy big block in general to plums post. they made cadillac small blocks dueces but i dont think they would ever be able to produce power like that.the ones in the mid eighties were gm 350's maybe the new generation small block caddy's of course they are, LT and LS series so i guess we were kinda in the same boat. caddy's have used LT1's up to LS9's.of course all the newer are gm stamp older of course were caddy stamp.gm ,made but specific for caddy.
 
So I finally said if I build a 350HP DD car motor and stomp your O-540

I read that as a 350 HP not CID. I don't see any limit on CID. Also is that max HP of 350 or is that 350HP at max DD RPM.
 
That will be around max HP at the DD max RPM around 3,200 to 3,500 RPM's depending on what prop I go with!. Without a gearbox at low RPM's you can't make much power. The A/C's do it by having huge size engines!
 
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