todaspecsi

Alright guys, i'm runing toda spec b cams, toda springs, and portflow retainers, any suggestions on how much fuel pressure i should be running? I don't wanna run to rich and possibly cause my cams to float but i dont wanna break my ish. My supervisor said put it up at 40 psi and if i need to bump my fuel down, do it on my vafc. It makes sense....any ideas?


Modified by todaspecsi at 8:41 AM 3/10/2004


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Modified by todaspecsi at 10:05 AM 3/10/2004

12 oz.

It really all depends on how your car is running and are you on stock injectors, fuel pump, ecu and the rest of your mods.

For awhile I was running 50psi on my current car, but when I dropped in the new header the car got thirsty. I ended up running 60psi static fuel pressure at the track.

What setting is it at now with the hose off? How is the car running now? Do you have a VAFC yet?

todaspecsi

it was at 20psi with vtec at 7000 rpm yesturday and it sounded okay but i felt like i wasnt getting all out of my motor that i should. also i'd get an engine light whenever i go down hill and wouldnt go away untill i restarted my engine. Yesturday i bumped it to 40 psi and put my vtec at 5500rpm. I ran it down the road and sounded as if vtec was turnin on an off. the close i moved the vtec setting to 7000 rpm, the vtec didn't act up as much.. I do have a VAFC, I have a mugen spec ECU and stock injectors, and sense its relative.....an adjustable fuel regulator

sinatra

My p2t ecu runs 41psi stock. 20psi sounds a little low to me. Messing with your fuel curve without a wideband 02 sensor is a disaster waiting to happen. Tune your fuel on a dyno bro.