My first goal is to get above 300whp but I'm currently poor and would like to put off injectors and standalone engine management for a while. Who here is, or has in the past, run over 300whp on stock injectors?

 

everyday

 

close - 278 wheel power with stock injectors.

When I get my blower back I should be well over 300hp.....we'll see what happens.

 

270 untuned .. I'm pretty sure I'd be at the 290-300fwhp range with an S-AFC. If you can afford to get the means to put 300fwhp on a maxima, then you can afford to upgrade the injectors.

 

I've got some 370 cc/min injectors I can let go for $280 plus shipping. They have been flowtested by RC Engineering.

 

I Am....

 

3.25 pulley, 8:1 FMU disk

321HP, 260 ft lbs of torque

 

323 tuned on 5th gen
v2 3.125

 

not here!

261whp with a 13:1 AFR. for some reason, not enough fuel is delivered to the engine. compared to previous run, which was 273whp and 10:1 AFR, untuned and stock cat-back.

it must be something wrong with the fuel delivery.

so far, these might be the cause(s)
1.bad injector(s) / clogged injector(s)
2.bad fuel pump
3.spark plugs / gap / heatrange (stock heat range was used inprevious 10:1 run and 1-step was used in 13:1 run)
4.bad FMU (but I am seeing boosted fuel pressure?)

I dunno still trying to trouble shoot.

 

have you checked your FP with a fuel pressure gauge? you dont need a expensive gauge any mechanical will work. Just Tee it off between the fuel filter and the top fuel rail

 

I got over 300whp with the stock injectors and a dry NOS kit.

 

thx Jay25

my case is compliated.

I have an in-cabin electric fuel pressure gauge and I am getting over 100psi of fuel at redline. Even with that much of fuel pressure, I am still running super lean. I havent punch her hard recently, but the fuel pressure is still there. The sender is located right after the inline pump and the fuel rail. 5th gen fuel filter is located inside the fuel tank with the fuel pump.

I have also tested the in-tank fuel pump per Hayne's repair manual with the fuel pressure gauge. the result was fine and both the pump's working and injecotrs are not leaking.


I am going to try to relocate the sender to before the FMU. I know I will get a funny idle fuel p. but I will see better boosted fuel pressure.

 

tempting

 

That's an awesome price....

I'd jump on it but I already have a deal with someone to trade for a MEVI for a set of RC Blueprinted injectors..

 

I am.
3.33" pulley
IMHO Get those RC injectors, before you push 300whp

 

once again with a PFI kit I am over 300

http://bigdogjonx.net/fullpics/dyno/Jay25turbo/run5.jpg