New Big Bore Blaster Kit
- Thread starter Kennedy_Power
- Start date
are you thinking that 2.0 liters is the equivalent of 200 cc? 2.0 liters is much closer to 128 ci (64 and change ci to one liter) and makes for much less hp/ci. im not trying to throw the
see nov 2008 issue of hotrod mag, LSXasaurus. 400 ci...2,050hp... 5.125hp/ci. that in itself is a milestone. they didnt specify exactly what octane they were running, but they did say it was 9.5:1 compression. it is becoming more and more possible to reliably make ridiculous amounts of power without sacrificing other aspects, most of that due to engineering.
dont get me wrong, im not saying he can make 50hp bolt on kits without porting... but im certainly not saying he cant either...
I believe Kennedy is using a 240 cylinder maybe his own maybe not thats his business, but has probably put some aggressive port timing into those cylinders to get 40 hp, its like a stock blaster having 16 from the factory and set-up right has 30, a properly set-up 240 can and should make 40 and being air cooled it must run on pump gas. a 300 foot motor can use race fuel not a trail/mx motor, I just like the look of a dyno (hopefully his) that will tell you real world hp and torque, remember fellas a 50 hp motor with average torque will get spanked by a 40 hp motor with a strong curve, and you'll only know this with a dyno.
are you thinking that 2.0 liters is the equivalent of 200 cc? 2.0 liters is much closer to 128 ci (64 and change ci to one liter) and makes for much less hp/ci. im not trying to throw thecard, but...
no, i'm not an idiot. i ran through the math. check it yourself.
Yeah car engines are completely different, being they are 4 strokes. A dorito or rotary engine would be more similar to the 2 stroke. Those things make crazy power compared to conventional 4 stroke car engines of equal displacement. People make the 1.3 Turbos fly. Like up around 1000whp sometimes. Turbocharged of course.
being aircooled, I wouldnt do any serious racing WITHOUT race gas. it will keep it running cooler.
its not alcohol its race gas, hi comp. needs race gas hi comp builds heat and an air cooled blaster does not get rid of heat very well, a hi comp. blaster on race fuel is not gonna last very long, the problem I see on here is everybody wants race fuel or 100LL which is not gas and the only reason they live is because they dont have the comp. to build heat, you have 175 lbs. comp on a blaster you'll need race gas go out and run a long race your not gonna make it
I always thought race gas ran cooler, and because of that, you can run higher compression without detonation. I was taught this like when I was 12 or so, so maybe I was taught wrong or something has changed since then. I always run race gas in everything, two stroke, ever since I saw big gains racing my stock 250R motor with it. Not to mention it is way cleaner than conventional gasoline. I do know race gas burns slower, so maybe the slower burning characteristic causes this heat increase you speak of. I'd sure like someone to elaborate. This is the first aircooled motor, I've used with race gas.
the reason you can see good gains with race fuel is oxygen that is added, as an ama racer there were certain fuels you could use and some you couldnt use and the higher the oxygenation in the fuel the more power you could expect.
I'm running 185 lbs of comp. in my blaster with 110 octane fuel and haven't had a single problem with heat. I can go out and run it hard all day long. Most blaster have an issue with heat when there not jetted correctly
I think I would get another gauge just to make sure thats alot of compression you have the right fuel you don't have the motor to disapate the heat
Naw, no need for another gauge. Everything on the motor was planned and thought through. The motor was built by a guy thats been doing 2 stroke race motors for over 20 years
most race fuels are not oxygenated, per say. not anymore than pump gas. standard race fuels do NOT make any additional power, they allow you to run higher compression and timing without detonation and preignition issues. this is done with additives such as benzene and toulene and various other substances. this slows the flame front down and also causes the flame front to burn slightly cooler. In all actuality running 110 octane race fuel in a motor that doesnt need it will actually produce LESS horsepower.
There are blends of race fuel that have oxygenative additives, but they are NOT what is considered standard race fuel. there are also additives such as Klotz Nitro and model airplane fuel that can increase the oxygen molecule content of pump gas and standard race gas as well as special fuels such as methonal and nitromethane. these fuels and additives are what is generally prohibited. These fuels are tested for by using a device that measures the specific gravity.(amoung other methods) the more oxygen in the fuel the lighter the specific gravity will be.(barring effects of other additives) those bulb things that you check the condition of your cars battery acid and the condition of your antifreeze in the radiator both work by measuring the specific gravity of the respective fluid. The parameters +/- a determined range will be listed on the spec sheet of the particular race fuel.
I am still working out the price on the kits; the biggest issue is the cost of a forged piston. Wiseco raised the price of all its pistons and is going to raise them again shortly. I am working out some details on good pistons for a fair price. I will give out all the info on timing and carb jetting with the kits. I will also give recommendations on the carb size to gain peak power without losing the front side of the curve. (Low end and mid range power)
More details will come soon.
Thanks
More details will come soon.
Thanks
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