Need Supra Fuel Injector ID - Toyota Nation Forum : Toyota Car and Truck Forums

almc2242 · 01-09-2005, 06:32 PM

I've got a set of fuel injectors number Denso 23250-46050 Sky Blue. Can you guys tell me anything about them. cc, etc.

Jeeves · 01-09-2005, 07:46 PM

Almc2242,
These injectors are listed as being in the 2JZ-GE. So they seem to be the stock injectors out of an N/A Mk4 Supra.

Further digging reveals [from a parts for sale post]:

Quote:

Set of 6 blue top injectors for if you have an SC. These are from a 95 GS300. They're part number 23250-46050 and fit right into your fuel rail without any modification. They also clip right into the harness. I'm currently running a set of these myself and they tested to be 316cc/minute and they utilize the stock air injection, which the redtops do not.

You'll note the GS300 has a 2JZ-GE motor as well.

So, in Conclusion:
Injectors: Blue Top
From: N/A 2JZ-GE (3.0L, various Toyota engines)
Flow: 310-320cc

Hope this helps.

almc2242 · 01-09-2005, 08:05 PM

Would they flow at least 330 to 340 if I install a Walbro Fuel Pump? It is for a 1997 Turbo RAV4 with the 3SFE engine. Low boost for street use 7lbs. .42/.48 40 TRIM.

Thanks Man

Jeeves · 01-10-2005, 11:36 AM

Couldn't tell ya. I think the 310-320 was a benchtested, cleaned number. I doubt you'll get much more out of them effectively.

Wreckless · 01-10-2005, 12:22 PM

almc2242, what are you doing for fuel management that is preventing the use of properly sized larger injectors? Note that most turbocharged 4 cyl's use at least a 400cc injector stock. I take it you are using a Vortech FMU or similar RR FPR, and the stock engine management and are trying to avoid the complications posed by using larger injectors?

Note that injector duty cycle sizes are generally all based on set 43.5psi of fuel pressure. Steps to increase fuel pressure with a Walbro or RR FPR will increase the effective duty ammount of fuel delivery but you face reduced pump efficiency & injector lifespan at higher fuel pressures.

almc2242 · 01-10-2005, 06:32 PM

The thing is that I'm following the turbo 5SFE engine from Burien Toyota in seattle. He recomends 360cc Injectors. But i can't seem to get any 360cc injectors like he recomends. Does anyone on this forum have a set of these injectors? I'm using the Greddy E-manage system.