hksitr

those that have switched to rdx injectors. what fuel pressure have you set for tuning

blkSi

From what I've read, it seems the base fuel pressure is 50psi and tune from there. At least that is according to Xenocron...

DDTECH

On my personal racecar, I run 60psi. These injectors respond well to pressure from what I've seen..

50-60 will be fine..

snm95ls

I ran stock base fuel pressure for a typical B series FPR.

I think they would have had fewer/no quirks had I raised BFP.

I would definitely run at least 50 psi BFP on them.

bluehbcivic

I run mine at 60psi

raverx3m

iTrader: (1)

I set mine at 55 psi since that's what the rdx fuel pressure is I think


you should be fine anywhere between 50-60psi

Robs_B18c

iTrader: (1)

What kind of mpg's are you guys getting with these RDX injectors?

raverx3m

iTrader: (1)

I haven't got anything better than 30 since I smash on it constantly lol
and I didn't have any others to compare it to I built it with rdx

in the city I get about 18-20mpg freeway I get about 30

Robs_B18c

iTrader: (1)

I'd be happy with 30's on the hwy. Thinking about getting a set of these more and more.

98vtec

I average 28-30mpg city with my h22 hatch. Fuel pressure right now is OEM until I get some time to play with the tune some more.

raverx3m

iTrader: (1)

on my last dyno I gained 7-9 TQ in primary before vtec.
on a hotter more humid day(20 degrees hotter and much more humid)
i increased pressure to 55psi
flanged out intake pipe to make smooth transition
removed PS

so between those 3 i gained pretty good chunk of torque in low end

Uncle Dave

These injectors like ID's really come alive at 60psi and make start to make really good part throttle torque numbers with that pressure.