Braineack

iTrader: (62)

technically i can get them all from witchhunter.com

rockdoc

Nice write up

stock 1.6l injectors are 205cc
stock 1.8l injectors are 230cc

prolly a typo

Braineack

iTrader: (62)

no not a typo....prove it to me and ill change it.

rockdoc

According to witchunter.com



which would make us both wrong

Braineack

iTrader: (62)

and they also rate the tan tops just a little low:




I've seen plenty of actual member's ratings here that have them flowed at 265cc. Not to mention FM's independent flow ratings of all years as well.

My thoery on the 230cc "myth" is that a 265cc injector running at 35psi (idle) would be close to 230cc.

It's the same damn thing as the oem AFM can only flow 165 CFM. which isn't enough for high horsepower. However the standard when talking about engines is 28 inches of water where it flows 300 CFM which is plenty for +200rwhp.

rockdoc

Hmm- explains why i could get 170 rwhp with my 230,s /254cc,c easily with 70% DC.

Marc D

iTrader: (7)

the easiest way to tell between the supra years is if the rear lights have a long red center garnish between the tail lights.
Coming from another forum, they would call these the "kouki" and the year previous (low impedance inj.) zenki.

which RX-7s did the 460 come off of? most of the ones i came across have square connectors. GXL versions? kouki versions with the circular tail lights?

Braineack

iTrader: (62)

I have oval 460s, I forgot the year, it's in my FAQ if you click.

Marc D

iTrader: (7)

a picture would be of better help though, not too many RX-7's at my junkyards. :(

poobs

iTrader: (1)

Are there any more good choices as far as high impedance injectors beyond what is in the list in the original "Sticky" thread ?

Also, are there any good rebuilt injector sources that I can order from directly rather than buy used and THEN send the inj out to be rebuilt ??

Thanks,

Poobs

Braineack

iTrader: (62)

Injector Dynamics injectors.

poobs

iTrader: (1)

I'll check them out.

poobs

iTrader: (1)

Do they also "sell" or just rebuild ?

Braineack

iTrader: (62)

they sell, you're pretty much stuck with 725cc or 1000cc, but they are the best injector on the market.

poobs

iTrader: (1)

Cool!!!

Braineack

iTrader: (62)

otherwise, the best used one I'd recommend is the yellow 440cc rx8 ones.

poobs

iTrader: (1)

Happy turkey day to one and all !!!

Got a used RRFPR on the way.

Can the fuel pressure at idle be adjusted so that the car will idle with larger injectors ?

Braineack

iTrader: (62)

the whole point of a FMU is so small injectors can provide more fueling.


I dont understand the way you think.

poobs

iTrader: (1)

LMAO!! Hey, at least we are not married

The slightly larger injectors are already installed.
If I go back to a stock ECU the motor will likely run rich.

Does the the RRFPR also have the ability to reduce fuel pressure so that I don't have to go back to smaller injectors ?

Braineack

iTrader: (62)

no. only a super FMU or a fancier more expensive BEGi unit can, when you remove the stock FPR.