Just wondering what size injectors everyone was using.

 

I realize some people are running two different injector sizes for the primaries and secondaries please post the combo you are using and your setup......

 

Im using 550cc primary's and 680cc secondarys rated at 710cc and all rebuilt by RC Engineering and within .5% flow rate of each other (in their own groupings of course).

Mods are 88 Jspec motor, ported turbo & wastegate, TB mod, Corksport Cat back/downipe, Banzai Racing FCD, Walbro 255, Mazdaspeed mission/motor mounts, RB oil baffle, Cusco Oil catch, SARD FPR, 5 lug conversion, GTUs suspension, KVR Cross drilled rotors, Stainless steel brake lines/clutch line, DTSS Eliminator bushings, RB HD Clutch & PP, 3" TID.

 

Stock primaries and mods in my sig.

 

OTHER:

Holley Nos Fuel Injectors
800 cc Primary, 1060 cc Secondary
Boared (sp?) fuel rails
Not yet tuned - waiting on turbo

-Kanaida

 

ryde or die do you wish you had bigger? Because i can get greddy 720's right now the 850's from rc engineering are on backorder.

 

^

 

What are you planning on doing? 4x720 or 4x850? Or are you trying to just run larger secondaries?

 

Well i was thinking about running 2 720's. How much boost are you pushing right now.

 

I have 4x720

 

550cc and 1680cc

 

blink what are your mods?

 

13BT w/ Street Port & 3mm Apex seals bare block
Microtech LT8 EMS
Microtech hand controller
GReddy Turbo Timer
GReddy 720cc inj. (4)
Greddy EGT p/h/w
GReddy boost p/h/w
GReddy Type S BOV
GReddy Shift ****
GReddy Profec B
TID & TB mod
Autometer gauge holder
HKS Intake
Apex'i GT Spec exhaust
Racing Mazda 3" DP/MP
Mazdacomp Engine mounts
Koyo Radiator
BNR Stage 3 Turbo upg.
walbro fuel pump
no emmissions.

 

how much boost? ever dyno'd or ran at the track?

 

how much boost? ever dyno'd or ran at the track?

 

how much boost? ever dyno'd or ran at the track?

 

I think i've hit 2 - 3 psi so far

I need to go out to my garage and finish wiring in the microtech.. then I think in a week or so i'll be sitting on the dyno. So right now.. I think i'll run 11 - 12 psi until I save up more bling bling for a FMIC

 

how much boost will you be running then i was thinking about going with just the 2 720's and about 18psi. Maybe i should go with 4 though.

 

So nitrous, you have a full t04 and want to just use the stock primaries and 720cc secondaries? I wouldn't do that unless you ran like 5psi and had it on a dyno first. Go for 4x720cc if you aren't going to get a haltech or other full standalone EMS.

 

I can only hit 12psi due to the stock intercooler.. I'll probably have an FMIC by summer though I kinda want to do the FD UIM when I go fmic though so that will take more time.

 

so 4 it is. I m prolly going to order them from rx7store.net

 

720/1600

Seening about 70% duty cycle at 14 psi, running rich.

87TII
90 Engine with large SP
SR KKK Turbo
FMIC
Wolf 3D 3.1 EMS
etc etc etc

 

if you have t04, then you'd better at LEAST have 4 850's, otherwise, why even have that big of a turbo? You can keep the stock turbo and run a little more boost and reach the same levels as running a bigger turbo with lower boost (that is if you have stock primary and 850 secondary injectors). Either way, you're gonna need more fuel than four 720's... Either low as hell boost or lean as hell fuel... 18 psi on a t04? get some 1600cc's and a stand-alone.

-Kanaida

 

Evilrotor, that is beautiful. Great setup. Only 70% duty cycle, and you're running rich at 14 pounds? That's great for your fuel situation. EASILY run more boost safely. That's what you should be looking at RX7withNitrious

-Kanaida

 

would it be worth putting t2 secondaries in my NA 89gtu?

thanks