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Post by nelson on Jan 14, 2014 10:41:57 GMT -5
i think your idea is totally do able. It will take some research and have to play with compression ration,cam/timing, and psi. You will have a lot of lag i think but if you compenate with the things mentioned you should be able to make it work. If i get some money i will send you some funds. Another problem is that you will have to run an electric fuel pump that is boost regulated. When the psi goes up the fuel must also. here is what i used,may be of help. and dont forget a blow off valve
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Post by nelson on Jan 14, 2014 11:48:48 GMT -5
you could actually get the fuel pump out of any car from the junk yard as long as its fuel injected. because the regulator will take care of the rest
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Post by Kick start on Apr 17, 2014 18:54:41 GMT -5
When is this coming out?? Im interested
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Post by hypocycle on Apr 17, 2014 22:33:29 GMT -5
You are right, nelson...my first go was with a pulse-pressure pump(off the crankcase vent)... didn't work very well and made a slight oil leak even worse...thought that if the PP pump had to overcome atmospheric it should be good for a couple PSI fuel. Playing with the pitot tube size/location and main jets (90-110) made the scoot "streetable" but my first plug chop was snow-white and it ran like shit past 1/4 throttle. Got a 4-9 PSI electric pump delivered today and a 1-5.5 PSI fuel pressure regulator on it's way. The drive ratio I have now "should" give me about 2 PSI but it seems to be getting LOTS air than I expected.
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Post by hypocycle on Apr 21, 2014 22:47:05 GMT -5
Progress...
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Post by 90GTVert on Apr 21, 2014 23:35:43 GMT -5
Very cool!
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Post by dan50 on Apr 22, 2014 1:04:19 GMT -5
OH man! I am excited!
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Post by 2stroked on Apr 22, 2014 10:50:59 GMT -5
SWEEEEEEEET!!!!!!! I would love to see a vid of say 0-40 or so. Exactly how much boost does your brain child there produce? Also, what type of fuel are u running, 97 N.M. al/mix etc.?. I. Think that u have created an easily marketable piece. Great work, I would love to see more
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Post by boostcrzy on Apr 22, 2014 12:21:38 GMT -5
I noticed the system is blowing through the Carb.....have you set the carb up to work this way?....obviously without vacuum the carb cannot work unless it is modified to work with boost. im Curious about the carb work....and would love to see if the compressor is going to be able to make boost.
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Post by craisin on May 10, 2014 9:57:21 GMT -5
I noticed the system is blowing through the Carb.....have you set the carb up to work this way?....obviously without vacuum the carb cannot work unless it is modified to work with boost. im Curious about the carb work....and would love to see if the compressor is going to be able to make boost. you are so right would be better with this type surely
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Post by Kick start on May 10, 2014 10:29:05 GMT -5
I say I know what's wrong with it where the blow off valve at and I think the setup is part wrong. just saying. im about to make one homemade. I really think its not the carb style ether
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Post by scooterpimp on May 10, 2014 10:38:57 GMT -5
Awsome sick idea
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Post by Lucass2T on May 10, 2014 12:25:46 GMT -5
I noticed the system is blowing through the Carb.....have you set the carb up to work this way?....obviously without vacuum the carb cannot work unless it is modified to work with boost. im Curious about the carb work....and would love to see if the compressor is going to be able to make boost. Well...to make a carburettor work you will have to have higher pressure at the airbox side. This occurs with normal ambient pressure becouse of a underpressure at the engine side. The same happens when you have a blower at the airbox side....the difference is only bigger... I think you have to make some modifications to the carb te make it work under pressure above 1 bar. Becouse it might be pushing out mixture through various holes or potentional exits. So seal off everything where mixture can exit the carb. You don't have to focus on secondairy air, but on the opposite. And have you thought about a blow-off valve? Or did i miss that somewhere in this topic? You can do damage to your compressor/carb becouse of reversing air. It collides with the closed throttle and has nowhere to go but to return to the compressor...
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Post by craisin on May 10, 2014 16:38:07 GMT -5
it would be easy to change to put the carb on the other side of the blower and put a vaccum port between the carb and blower
give one to some old guy to sort for you not me i like my licence too much
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Post by craisin on May 10, 2014 17:24:57 GMT -5
just read on another site of somebody making a pop off valve with a radiator cap
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