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-   -   Side exhaust (https://www.offshoreonly.com/forums/classic-offshore/320837-side-exhaust.html)

Ratman72 12-22-2014 01:19 PM


Originally Posted by f_inscreenname (Post 4238492)
From what I understand Keikhaefer offered "build kits" to a few. That's why I found the rods I did in the mid-west that have never been used. I've also seen a few parts with the name ground off. I figure these were parts for racers that were not under the Keikhaefer banner and maybe shouldn't be using the competitions parts but when you need the best at the time you take their parts, alter them (by grinding the name off) and call them your own. .

Unused origional parts.......nice find!

Wet Bowtie 12-22-2014 10:48 PM


Originally Posted by h2oboater (Post 4236586)
Here is a story were side exhaust would have been nice. At the Stroh's Ceder Point race Bob & Davey Gillmore were racing Diamond Don's newly acquired REALLY RIDICULOUS Bertram. The night before the race while backing up the Bertram Davey hydraulic one of the engines. Bob was elected to pull the plugs & flush the engine out. Bob was not happy as his buddy Dave left him in the bilge and went to the local tavern. Bob said if the Bertram had side exhaust this would not have happened. They raced the next day only to have the PVC plumbing that was used in some the rigging to break & fill the bilge up.:picard1:

H20, do you have any more info or pics of this Bertram? I believ a friend of mine now has her. His name is kurt and he's near me in Deland Fl. He's completely redone the boat,still looks the same. The big N on either side is still there but covered with layer of glass,you can see it from the engine compartment. He thinks the boat was once called Needle Nose. ??
BTW to all of you adding to this thread,thank you! I love reading about this history from you that were actually there.this is all great stuff,especially to those of us in the younger generation of building and racing offshore boats.

Redman 12-22-2014 11:45 PM


Originally Posted by Ratman72 (Post 4238416)
That's quite something, so was he a pilot or an aviation engineer? I've been watching WWII in colour recently, it has been televised here in the UK over the last few weeks, some incredible stories, I've found it fascinating.
?

Stan was a CAC, but his rating was a parachute rigger---after Midway he returned to the States and was assigned to a detail that designed and tested parachutes and survival gear--I think he set a record for the number of night-time over water jumps---

Phil M 12-23-2014 05:07 AM

We never used PVC plumbing to my knowledge before selling the boat to Diamond Don Smith !

legend 01-17-2015 06:13 AM


Originally Posted by mr vinyl (Post 4230712)
I UNDERSTAND THERE WERE A NUMBER OF OFF SHORE BOATS N THE 60's70's THAT RAN WITH SIDE EXHAUST:

1. What was the advantage of side over rear exhaust ?
2.Who was the principal manufacture ?
3.I understand they were considerable louder than rear exhaust.
4.What were some of the boats that raced with them
5.Dd they give the boat any advantage ?

Any other feed back would be helpful...Bud


If anyone is looking for a pair of vintage BBC side exhaust racing headers off a 38 Bertram I can help. Email me

littlenige 09-28-2015 06:58 AM


Originally Posted by Ratman72 (Post 4236196)
Gene, I reckon this shot you posred is of Bill Elswick's Performer 36 called Thunder........what do you think?

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[ATTACH=CONFIG]534507[/ATTACH]

Christian the photo of the engine bay is mine - the Cigarette 36 Thunder indeed, of Bill Elswick I think it was. Taken at Cowes. Angelo Meli was with the team also I recall.

70open28 09-28-2015 08:53 AM

Bud,

The side exhausts may have been used in an effort to gain a bit of horsepower. Smokey Yunick was one of the innovators in NASCAR running the exhaust pipes out the side just in front of the rear wheels. He discovered there was an area of low pressure just in front of the rear wheel but also the air moving past the ends of the pipes would scavenge the exhaust from them. This would help make a few more horsepower. I don't know if that relatively small amount of horsepower gain in a boat would make any difference. Boats usually require LOTS more horsepower for a few miles per hour.

Ratman72 09-28-2015 03:30 PM

That's funny, I should have guessed it was one of your photos Nigel!!

Redman 10-05-2015 12:03 PM


Originally Posted by f_inscreenname (Post 4231536)

Hey Sb, It’s a tall block and the intake must have been made for Mr K because it’s got a GM number that don’t come up in any books, 3963647. A guy has one on eBay from England which got me thinking about where the motors are that were in Rats boat. Like you said they are a bit rare but not impossible to find but the one on eBay also looks to have been milled so you could use a standard distributer the same as mine and it also says it was for marine.

Mr. Kiekhaefer was good friends with Bunky Knudsen (CEO of GM,65--66--67). Mercury was marketing and selling big block (482") Inboard engines, 375 horsepower, left hand and right hand rotation. This engine used the tall deck block, a Rochester carb, an aluminum intake that need no 'spacers' This is the engine that evolved into the Mercury (not KAM) race engine---

http://i57.tinypic.com/2v00myu.jpg

Redman 10-05-2015 12:40 PM


Originally Posted by hallj (Post 4234859)
That makes sense. Connecting the dots..........

Post #49. http://www.boatmad.com/forum/showthr...t=22333&page=3






Jeff

I can't get in to 'BOATMAD'

Here is my pic of 'Stocks Up'---I knew the boat pretty well---

http://i57.tinypic.com/dm2ywh.jpg


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