750 H2

So someone is claiming 130 horse power with a 750 H2. Milled head and 34 denco carbs with mod exhaust. Is that possible? If so I'm getting one lol

Maybe with a nitrous bottle! :woohoo:

Something like that, but you're looking at tons of porting, $800+ carburetors, reeds (wild porting and piston port makes for a crap bike) and a custom tuned expansion chamber. Then with 100+ horse you're gonna need to spend on the forks, brakes etc.

I bought my H2 for a little over a grand and it came with a froze motor, and that was a hell of a deal. Gonna need at least another grand into the crank and cylinders to get started but that's after I get to it.

Short answer, probably $5,000 into the motor alone and you'll get near that. There is a trick H2 out there with case reeds instead that's supposed to be unbelievabe. And there is a guy mating a 600 polaris snowmobile top end to a 500 triple; those polaris motors are supposed to be unbelievable the 800 is like 120 horse and watercooled, powervalves and reeds to.

DobbinsCMA wrote: So someone is claiming 130 horse power with a 750 H2. Milled head and 34 denco carbs with mod exhaust. Is that possible? If so I'm getting one lol

Why not? Research Paul Gast and Dave Shultz (RIP) Early days on Pro Stock Kaws.
All hand made , modified parts. Thats what it took

Damn beat me to it I was gonna say Gast can make
an H2 make more power then that.

www.fastbygast.com/

I'm sure it's possible just like it's possible to produce more than 280 HP with a KZ750. All it takes is money and know-how. Ed

www.750turbo.com/forum/viewtopic.php?f=9...377&p=120771#p120771

The old Denco cobra? came in various h.p. configurations-if I remember correctly their top rated single engine was around 150 hp. Is there a stamped cobra on the cylinder block?

The denco HP numbers are supposed to be very generous, the 150 supposedly is near 100 or something like that. If I see 130HP I'm expecting 130 usable horses not alleged.

Had an old Denco catalog back in the h2 days- as I remember that was their claimed hp number-not sure how they arrived at it. My h2 was plenty nasty enough without their parts- unpredictable POS-Just happy I survived it as a 17 year old fearless idiot!

- unpredictable POS-


How dare you! Jk

I love the h2. I think it was a great bike. But yes they are pos's. Hard to believe they are worth so much.

The gt750 was an all around better bike with a lot more potential. Some folks drop 15k into the gt750 motor and they are doing 140hp. Bazza's tr750 (the famous one he crashed on) was at 148 on the dyno I believe.

OK to correct myself
barry sheen tr750 was at 115hp with a top speed of 180. Crazy for 1970

Ocelot racing modifies the gt750 bringing it to 850cc and they have several examples of 130-140hp. Either way 130hp is possible.

Traded a water buffalo for the h2-in hindsight probably not a great decision-but the h2 was fresh built/new cdi and only 3 years old- buddy had built it and was informed by local pd to sell it or go to jail- POS was probably not the correct term-just had to pay attention at 3500 rpm- came off that onto a 79 ltd 1000- much easier to control. Rode
my old h2 a couple years after I sold it and it just seemed pretty......uncivilized-but I get the attatchment to the old beasts-nothing else quite like them. As far as hp/speed-plenty of youtube videos of guys turning very respectable times on the old beasts.