Since this is the path you chose to stay on, that's fine but I hope you took my comment to heart on which RRFPR to get (Ap2). As someone else mentioned, buy changing to a TP and higher flow single, you changed the duty requirements of the Comptech fueling set up, so replacing an old ap1 RRFPR with a new may not yield you anything if it was functioning fine before without leaks, unless of course the pre load spring was totally clapped out. The Ap2 RRFPR has a steeper fuel ramp up and will produce more fuel for you in the bulk of your rpm range, it will cap out a little sooner but the stock ECU extra injector duty after 8k rpm will provide the rest, and actually give you the flatter afr curve you would normally tune for. Thats IF you are maxing out the ap2 FPR, if not, then it will go rich after 8k like the ap1 FPR.

 

Dawm. That slipped of my mind. I guess I didnt fully understood what you were explaining. Now i feel dumb ;-(

Just emailed comptech to see if it is to late and what they think about that ap2 rrfpr on an ap1

 

FYI - I have an AP1 RRFPR in my AP1 with aftermarket header and test pipe and its holding AFR just fine.

 

Good to know !!

Any chance you got your afr on a graph ???

 

If he is lucky his will too, but there are no guarantees once you start adding additional breathing mods and or smaller pullies. An ap2 RRFP would have insured his success. That’s my experience with the set up.

 

I just looked and can't find my most recent AEMData file from after I installed my new RRFPR. I have the ones from before my old one failed, but that's when it was on its way out. I will try to find it on my other computer at home.

I definitely agree with you; adding a smaller pulley shouldn't even be an option if you're still planning on using the RRFPR. Anything over 6-7 PSI and you need to ditch this crappy RRFPR business and go standalone ECU. Believe me, I do NOT like my RRFPR. It makes the car difficult to drive in low-RPM situations, and difficult (or impossible) to tune properly. My intake is still in the standard location and likely getting heat soaked. If I had a CAI setup I would likely see leaner conditions. I also still have the OEM catback exhaust, so I would bet that if I had a J's single or something that flowed better I would see leaner conditions. I'm not sure how much more adjustment I have in my RRFPR, I actually didn't have to touch it once I installed this new one. I'm tired of it, and can't wait to get new injectors and a Haltech so I can finally ditch this RRFPR and make better power.

 

Injectors are back.

Seem to have a good improvement in spray patern and from 2 to 4.4% in flow rate.

No idea if this had anything to do with my problem but ....

 

New rrfpr installed. Temporary fuel pressure gauge too !!

I will try to get a place at the dyno tomorrow !

I wish it will be right this time ( finger crossed right now )

That is my gauge setup

 

How much did the cleaning cost you?

 

180$

But im in canada so ...