FPR Tuning for CAMPRO S4PH

[crazykatak]

my whistling occurs when the key is turned ( when fuel pump operates ) during cold start

 

[rlhc17]

anybody still have whistling problem ?

drex.... any feedback from works engineering ?

 

[dohc4g93]

hi all,may i know what is the best wot fpr setting for wira 1.5m vdo and 4g93 dohc?

 

[drexchan]

hi all,may i know what is the best wot fpr setting for wira 1.5m vdo and 4g93 dohc?

The best setting is ALWAYS determined using a Wideband Sensor, either OTR or on-dyno.
General setting (collective experience) is only a guide but it's never optimized, as each engine has its own running condition.

 

[cikai]

hello fellas..i'd like to ask why my car seems hard to start after installing fpr..for ur info, i'm driving gen 2 campro..i've already set the fpr at 3.9-4.0bar & during setting i already remove the vacuum hose..my problem is it takes longer to start the car than normal especially during cold start and it back to normal after drive for a while..

please give ur opinion regarding my problem huhu..

 

[jawsbite]

What mod do you have that requires you to install aftermarket FPR? As long as you are still using the stock fuel pump, there is no need to upgrade.

 

[cikai]

i've done some modes to my car which include full set exhaust system and intake system upgrade..also installing LCP, iridium plug, and performance plug cable..but after installing fpr the low end torque improved a lot compared to before..it's not that my car hard to start at all but it takes a little bit longer to crank compared to previous

 

[jawsbite]

tooning with FPR is as gud as using 1 button SAFC. It affect the whole range.

 

[William Foon]

Dear all,

Hi drex....is me william

I had installed FPR - a replica tomei due to budget.

it was set to 4.5 bar (but meter will goes up to 4.8bar if rev the time)

the pickup is superb and no noise as mentioned in first 2 pages there.

I just wonder some member said return fuel not found in campro? will it cause any explosion if car accident etc?

Please help:wavey:

and happy CNY to you all....gong xi fa cai

(p/s: my car is saga blm 1.3 manual)

 

[drexchan]

Wrong... tune the pressure without the vacuum hose plugged to the FPR. Use your finger to 'plug' the hose, tune the pressure to 4.5bars. Plug back. Idling pressure should be lesser than the 'tuned' pressure.