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The old 60hp pistons had a different cut are you sure his 45 pistons were not 60 ones?

Can someone clarify which pistons are legal? A buddy of mine ordered the 5006665 part from Sea-Way and the pistons in the box were marked with...

Yes hard to believe the shaved head and custom megaphone will add 10 hp and lift the peak power up to 7000 Al Stoker told me he has had many on his...

APBA had a spec sheet for the T-750 45 cubic inch OMC when it raced in Formula 50. That sheet is basically the same as the SST 45. I have never seen...

Hi Hounddog Was there ever a spec sheet for the omc 45ci for t 750? They are 70hp at 7000 in sst45 spec which is stock porting which is faster? ...

I am sad to hear about David's passing. He had some bad accidents during his time of racing and non racing. David was one tough guy. David and his...

Too big. I have several 45ci omcs and ofcourse that was the first motor i tried. I dont need 40+ horsepower either. The 30 h.p. omc is the best...

Did'nt nissan / tohatsu do a 70hp twin once upon a time?

Sorry to hear about David. He was a great guy and a fierce competitor. Remember a time when either Ralph or David's name was listed as finishing...

The Problem with snowmobile jetski or rotax aircraft engine are they are too big. Those engine designers have way more freedom in design due to sleds...

Look at air cooled/water cooled snowmobile engines...? Loop scavenged (looper) with WAY more power per cc. The snowmobile engines usually have...

Find someone who can put the powerheads on a dyno and get real results. That would be my recommendation.

I would say that 39 mph with a 25hp is really good. Yes, get Ron Hill to help you.

Really cool pictures. I’m sure that Eddie Wolf won the A Stock Nationals at Green Lake in Seattle, Washington in 1959 in a Marchetti.

it makes more power but having the piston flat against the exhaust port rather then cocked over

WOA was considered an "Out Law" club. They made their own rules and McCullough Outboards kind of "Bank Rolled" them. One rule, APBA racers didn't...

As I recall, the two boys from Seattle with Sid Crafts were fast. I also recall that one of the two got his left side sponson knocked off in the...

1st & 2nd at Beloit in DSH with Sids were Bob Okner & Dick O'Dea both from NJ, the home state for Sid-Craft

I would try increasing the pitch of the prop an inch or so. Your RPMs went up cause you raised the engine - but your speed did not pick up much...

Hey Frank - I know it has been many years, but I would love to get my Dad a Marchetti t-shirt. Do you still have the digitized logo or any of the...

Many kinds of piston designs for the 49ci.. Far left is the 3 ring 1968 55hp, far right is the 1975hp Stinger piston (high top ring, flat top).

Then...why is the exhaust on the right side? Is the photo reversed? "Inquiring minds want to know!" Jeff

Yes, Mike Raich was the fast D ..... he set records at both Devils Lake, Lincoln City, Oregon... and Lawrence Lake, Yelm, Washington. He was fast for...

Living in Seattle, you probably remember when the bigger hydros were all cab overs until the Sid Crafts showed up. I don't recall their name, but...