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-   -   --Injector sizes Question?-- (https://www.rx7club.com/single-turbo-rx-7s-23/injector-sizes-question-40224/)

wankawankel 12-20-01 09:19 PM

--Injector sizes Question?--
 
I have a two sets of stock injectors from a 93 FD. Two of them are short, and the other two are a little longer. Which ones are the 550's and which ones are the 850's?

JoeD 12-20-01 10:21 PM

the primaries are 550. secondaries are 850.

machinehead 12-20-01 10:32 PM

The 550's are longer, that's why you can't put the 850's on the primary location, they will leak fuel past the bottom o-ring and flood your car or make it run REALLY REALLY rich! I have tried....

waynespeed 12-20-01 11:10 PM


Originally posted by machinehead
The 550's are longer, that's why you can't put the 850's on the primary location, they will leak fuel past the bottom o-ring and flood your car or make it run REALLY REALLY rich! I have tried....

They can work. All you need is a flat file and file the injector holder down a bit, try lowering the inside fuel feed grove a bit as well. ;)

This mod is only if you can control larger primaries.

wankawankel 12-21-01 08:14 AM

Since no one has the correct maps on the PFC for the 1600cc injector kit, I'm going for the 850 prim/1300 second combo. XS Engineering is supposed to have a great map to run that combo. What do you think? I may go Haltech and keep the 1600's. Carl...


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