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-   Rotary Engine Building, Porting & Swaps (https://www.nopistons.com/rotary-engine-building-porting-swaps-55/)
-   -   Premix? Again (https://www.nopistons.com/rotary-engine-building-porting-swaps-55/premix-again-37584/)

ColinRX7 04-21-2004 12:22 AM


Originally Posted by j9fd3s' date='Apr 20 2004, 09:03 PM
the 787b has a metering pump

Anymore details?

kahren 04-21-2004 12:31 AM

i think j9 owns a 787 https://www.nopistons.com/forums/pub...1047683561.gif

White_FC 04-21-2004 12:42 AM


Originally Posted by j9fd3s' date='Apr 20 2004, 09:03 PM
not all of the mfr engines use premix, the 787b has a metering pump

wow, ok thats news to me, i always thought it just ran straight premix with no MOP..



how'd you find this out?? also was it to do with rules at le-mans that they couldn't premix?

j9fd3s 04-21-2004 10:38 AM


Originally Posted by White_FC' date='Apr 20 2004, 09:42 PM
wow, ok thats news to me, i always thought it just ran straight premix with no MOP..



how'd you find this out?? also was it to do with rules at le-mans that they couldn't premix?

i looked at the pictures. it probably did have something to do with the rules though.

rx7_re 04-21-2004 03:27 PM

Yea, didnt that thing also run mechanical fuel injection?

j9fd3s 04-22-2004 12:17 AM


Originally Posted by rx7_re' date='Apr 21 2004, 12:27 PM
Yea, didnt that thing also run mechanical fuel injection?

nope its efi https://www.nopistons.com/forums/pub...DIR#>/ohmy.png

banzaitoyota 04-22-2004 07:23 AM


Originally Posted by j9fd3s' date='Apr 22 2004, 12:17 AM

with an electro-mechanical variable trumpet intake!

j9fd3s 04-22-2004 11:56 AM


Originally Posted by banzaitoyota' date='Apr 22 2004, 04:23 AM
with an electro-mechanical variable trumpet intake!

which moves as fast as the engine can rev!

White_FC 04-22-2004 04:58 PM


Originally Posted by j9fd3s' date='Apr 22 2004, 08:56 AM
which moves as fast as the engine can rev!

.....for a full power run in second gear https://www.nopistons.com/forums/pub...IR#>/smile.png



It would never be able to keep up free reving in neutral.. still very impressive none the less..



I'm still friggen trying to design a circuit to work like this.. My thoughts so far are using the cas output to drive a PWM circuit.. easy.. BUT, how the hell do you tell it to 'move back' instead of extend? I'm now considering two motors, one to extend and one to draw it back, just need two differently design PWM circuits..



hehe might go ask some of the electrical engineer lecturers some more.. they'll know.. https://www.nopistons.com/forums/pub...IR#>/smile.png



I think its a great idea, and the mechanics of it are quite simple, just the electronics will be a **** fight.

j9fd3s 04-22-2004 09:22 PM


Originally Posted by White_FC' date='Apr 22 2004, 01:58 PM
.....for a full power run in second gear https://www.nopistons.com/forums/pub...IR#>/smile.png



It would never be able to keep up free reving in neutral.. still very impressive none the less..



I'm still friggen trying to design a circuit to work like this.. My thoughts so far are using the cas output to drive a PWM circuit.. easy.. BUT, how the hell do you tell it to 'move back' instead of extend? I'm now considering two motors, one to extend and one to draw it back, just need two differently design PWM circuits..



hehe might go ask some of the electrical engineer lecturers some more.. they'll know.. https://www.nopistons.com/forums/pub...IR#>/smile.png



I think its a great idea, and the mechanics of it are quite simple, just the electronics will be a **** fight.

i think they used fc headlight motors, really. that car is FULL of stock parts. we spotted the gsl-se radiator cap, fc rear wiper arm, the trumpet motors, the taillight is some 70's car peice.


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