1st Generation Specific (1979-1985) 1979-1985 Discussion including performance modifications and technical support sections

powerinjection 3

Thread Tools
 
Search this Thread
 
Old 04-17-11, 11:15 PM
  #1  
Full Member

Thread Starter
 
chiquito1228's Avatar
 
Join Date: Mar 2006
Location: in the city
Posts: 190
Received 10 Likes on 5 Posts
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
Old 04-17-11, 11:41 PM
  #2  
Moderator

iTrader: (3)
 
j9fd3s's Avatar
 
Join Date: Mar 2001
Location: https://www2.mazda.com/en/100th/
Posts: 30,826
Received 2,594 Likes on 1,842 Posts
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?
Old 04-18-11, 12:40 AM
  #3  
Jolly Green Giant

iTrader: (1)
 
DarrenTRS's Avatar
 
Join Date: Feb 2008
Location: San Antonio, TX
Posts: 509
Likes: 0
Received 0 Likes on 0 Posts
Originally Posted by j9fd3s
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.
Old 04-18-11, 06:23 AM
  #4  
Retired First Sergeant


iTrader: (18)
 
Boriquaguerrero's Avatar
 
Join Date: Jul 2007
Location: Fort Stewart, GA
Posts: 1,041
Received 43 Likes on 34 Posts
I have a accel TB with 4 inj and microtech ECU





[IMG]
[/IMG]
Old 04-18-11, 09:21 AM
  #5  
I touch my Wankel.

iTrader: (1)
 
bshusted's Avatar
 
Join Date: Aug 2007
Location: Muskegon, MI
Posts: 273
Likes: 0
Received 0 Likes on 0 Posts
I'm not sure if I trust a $2000 EFI setup that has a "clamp on" O2 sensor.
Old 04-18-11, 01:32 PM
  #6  
Slave to the Rotor!

iTrader: (8)
 
81WideMariah's Avatar
 
Join Date: Jul 2006
Location: Orlando/Winter Park
Posts: 849
Likes: 0
Received 1 Like on 1 Post
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.
Old 04-18-11, 04:32 PM
  #7  
Moderator

iTrader: (3)
 
j9fd3s's Avatar
 
Join Date: Mar 2001
Location: https://www2.mazda.com/en/100th/
Posts: 30,826
Received 2,594 Likes on 1,842 Posts
Originally Posted by 81WideMariah
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.
Old 04-18-11, 05:56 PM
  #8  
Full Member

Thread Starter
 
chiquito1228's Avatar
 
Join Date: Mar 2006
Location: in the city
Posts: 190
Received 10 Likes on 5 Posts
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




All times are GMT -5. The time now is 08:13 AM.