Would full boost all the time and no lag be beneficial?
04-17-2003, 11:22 AM
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Would full boost all the time and no lag be beneficial?
I have an idea for a motor which would entail having the benefits of forced induction without the parasitic losses (restrictive exhaust, crank driven compressor) or lag from the turbo. Theoretically I could have any amout of boost I want at any given engine RPM. My question to you is would this be of benefit over a conventional turbo setup? My thought is that it would greatly help low end power because the high air pressure would always be there, even at idle. Of course there would be all of the necessary FI components (wastegate, BOV, etc.) and a well built motor. I forsee using SpeedPro to tune it. I simply want to know if this theory is worth exploration. It's something different and could be fun and it might be pretty fast. Any thoughts are appreciated. cheers. 
04-17-2003, 11:31 AM
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Re: Would full boost all the time and no lag be beneficial? (Farnsrocket)
just imagine if your boost gauge could read 18 psi all the time...even right off idle. You wouldn't have to wait until the motor spun up to 4000 rpm to get the compressor spinning fast enough to make boost. It would already be spun up and waiting for the air to be blown into the motor instead of out through a BOV. Technically speaking, how do you think the motor would react?
04-17-2003, 11:37 AM
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Re: Would full boost all the time and no lag be beneficial? (erouser)
In a honda the instant spool would suck because you wouldnt be able to get traction.....
04-17-2003, 11:42 AM
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Re: Would full boost all the time and no lag be beneficial? (Farnsrocket)
Theoretically in a RWD vehicle it would be awsome, but what about gas mileage and reliability? Being in boost all the time would hurt the gas tank....I'm interested though, when are you going to enlighten us with you idea??
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04-17-2003, 11:43 AM
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Re: Would full boost all the time and no lag be beneficial? (erouser)
How good would this be for the turbo is another question. Think about the reasoning behind BOVs.
But please do explain.
But please do explain.
04-17-2003, 11:45 AM
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Re: Would full boost all the time and no lag be beneficial? (genop)
04-17-2003, 11:46 AM
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Re: Would full boost all the time and no lag be beneficial? (genop)
I'm not greatly concerned with fuel economy because this is just a projet that I've dreamed up lately. I am seriously considering finding funding to do this if it seems like a good idea. I want to keep some secrecy until i have hard plans but in essence I want to use a separate motor to drive a conventional turbo and then use the compressed air from that and feed it into the car motor. Then I'd have two systems. One keeping the turbo spinning and the other being fed from the first and pushing the car.
04-17-2003, 11:50 AM
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Re: Would full boost all the time and no lag be beneficial? (erouser)
ok so let me see if I understand this......instead of having one motor you want two?? where are you putting the other one, in the back seat?? Sorry if I dont understand, but the added weight alone wont negate the whole idea...
04-17-2003, 11:51 AM
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Re: Would full boost all the time and no lag be beneficial? (genop)
just don't worry about the other motor...I have that figured out. It's tiny. I want to know if the theory of having boost all the time is good.
04-17-2003, 11:54 AM
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Re: Would full boost all the time and no lag be beneficial? (erouser)
As long as its just for the track and the other motor doesnt add a **** load of weight it would be pretty cool. Although you could just add nitrous down low and save yourself alot of money....
04-17-2003, 11:56 AM
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Re: Would full boost all the time and no lag be beneficial? (erouser)
the extra motor would have to be pushing alot of air to make 18 psi @ idle...so one engine would be seeing 18psi @ idle and the other would be killing itself making the 18psi for the other engine????im confused
04-17-2003, 11:58 AM
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Re: Would full boost all the time and no lag be beneficial? (2.2Lcivic)
yea, the other motor will have to be pushing alot of air.......i'd like to see what you have in mind.
04-17-2003, 12:00 PM
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Re: Would full boost all the time and no lag be beneficial? (2.2Lcivic)
not so much killing but it would be pushing enough air to keep the car motor happy. Just taking it in a purely theoretical sense, would having all that air on tap be worthwhile?
04-17-2003, 12:13 PM
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Re: Would full boost all the time and no lag be beneficial? (genop)
this kid i know supposedly knows a friend who had a mustang that was turbo'd and used a supercharger that was modified so it'd be constantly keeping the turbo spooled up. even if this is true and works, gas usage and mileage would be **** and u'd theoretically be using the turbo all the time, even at idle and part throttle. i dont know how long it would last but it certainly wouldnt be the most reliable
04-17-2003, 12:13 PM
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instant boost on demand is cool.. there is a company in europe that is building a real electric supercharger. Theres is more for fuel ecomony though.. Well it lets you run a small engine and then when you need it you have the power of a larger engine.. since most of the time only need the tiny engine to get going.
04-17-2003, 12:20 PM
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Re: (Overblown-Teg)
the supercharger and turbo has been done for a while now, its old detroit deisel technology. ive also seen a subaru impreza running this type of system locally. it looks like a big clutter, but from what i hear with the awd setup it rips..
04-17-2003, 12:27 PM
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Re: Would full boost all the time and no lag be beneficial? (erouser)
keep dreaming aobut the electric **** Your alternator only puts out liek 70amps maybe. 70 amps on a 12v system is only 840 watts, 1hp = 750 watts (i think). So you plan on compressing 12psi with ~1hp? Also you wont even get that at idle.
04-17-2003, 12:32 PM
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Re: Would full boost all the time and no lag be beneficial? (UberTeg)
i have no intention of using an electric motor to spin a turbo...that was just something someone threw in there. I do want to know how well high boost at low rpms will be handled by a 4 cyl DOHC motor.
04-17-2003, 12:39 PM
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Re: Would full boost all the time and no lag be beneficial? (erouser)
imagine your motor is like a light bulb...when you light the bulb all the time, it's life span will be short.
full boost at low rpm isn't a good idea...your traction will be ****...even if you have rwd cars...it's not gonna be pretty.
full boost at low rpm isn't a good idea...your traction will be ****...even if you have rwd cars...it's not gonna be pretty.