stantaur

Potentially silly question, but will the stock fuel pressure regulator work for boosted applications ~ 18 PSI of gauge pressure? Just want to make sure I'm OK since I think I've covered the other angles (below). Please let me know if you recommend changing out the stock FPR for a different one if needed. I'm trying to keep the car looking as "factory" (as if Honda's skunkworks guys did a turbo / ZR-1 version) as possible. May even gut a stock airbox to cover the relocated battery and oil filter.

Top View - Manifold & Thermal Barrier, Relocated Battery

Front View - Battery and Oil Filter Location Maybe Cover w/Factory Airbox

I've upgraded the fuel pump to the Walbro 255 and have RC 1000s in (with resisitor box) and the car runs fine. Haven't gone past 12 PSI boost yet as I'm still in break-in phase. All air/fuel ratios in boost are ~ 11.4:1 and timing's about 15% lower than most of the maps I've seen from other folks, just to be safe. And the big oil cooler, and the big radiator, oil jet upgrade, Laskey 9:1 sleeved block, Stage 3 head, etc.

Thoughts welcomed,
Stanford

Envied

Clean setup! If you had a heat shield for the manifold and over the battery box, one might not know it is turbo lol. Untrained eye might think it is just a CAI under the hood lol.

stantaur

Thanks! Very kind of you and yes, that's the goal. The guys doing the state inspection were pretty nonchalant about the car until the popped the hood and I heard 2 grown men yell "Woooo!" and call the other techs over to see it. Last time I heard that kind of unadulterated "Woooo!" was... nevermind.

Only thing left now is to put a support under the turbo/manifold. Reduces vibes if you put a brace between the old honda exhaust manifold hole and the bottom bolt of the turbine housing. Huge reduction in steering wheel / pedal / shifter tingle.

Nice numbers yourself, BTW -- is 207 stock? All I got was 194 on a good day.

Best,
Stanford

Spec_Ops2087

Stock fuel pressure regulator is fine. No reason to change it when it has been proven time and time again

Slows2k

The Diaphragm in the stock regulator has put up with vortech's on a FMU running 120psi fuel pressure +.

18psi of boost + approx 52 psi at the rail = 70psi at the rail under full boost. You'll be fine

Envied

Well those numbers are with invidia exhaust, invidia test pipe, k&n drop in filter and J's cooling plate for the stock airbox.