powerinjection 3
 

i was wondering if you guys have any thoughts or opinion on this setup. i think its a neat setup and i was thinking about using on my blowthru 12a streetport. let me know what you guys think.

http://www.professional-products.com/EFI_3.php

not bad, i kinda like that its all one unit. i looked thru the instructions, since there is a table for boost (its goes up to 21psi) and there is a target AFR table, it looks like it should work.

how much is it?

About 1,700-1,800 for the kit but then instillation is needed along with a manifold [$300?] and air cleaner. Also a 750CFM carb is probably gonna be hell on that motor without stepped linkage only opening 2 ports first then the second 2 after say 1/2 throttle.

I have a accel TB with 4 inj and microtech ECU





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I'm not sure if I trust a $2000 EFI setup that has a "clamp on" O2 sensor.

only issues I can see are.... availability of injectors... are they standard injectors (Bosch, Nipon-Denso, etc) or some weird specialty injectors.

Also, how does it receive it's RPM signal? As we know rotaries have very "interesting" ignition qualities that make the use of standard piston based EFI systems quite difficult to tune. Fuel only is obviously much easier to deal with than spark and fuel, but still needs some sort of relative RPM signal.

And to be honest.... I doubt you'll make much more power with it over a properly tuned carb.

it comes with injectors, which is the other limitation, i wanna say its 4x62lbs/hr?

its gets its signal like the tach does, they make a big deal about it not needing a good rpm signal, but it does. triggering from the MSD would be ideal. its not sequential EFI, so it doesn't need a relative signal, it just needs RPM.

they do sell bigger injectors 75lbs/hr and they also have fuel pump upgrades. rpm signal you could get that from an msd like stated from j9fd3s