ok, im gona start tunning my 550's soon and i just needed a lil advice, when i tried tunning my 1000's i was told to increase the fuel multiplyer value by like 9 over the recomended, how much should i increase the 550's over there recomended? do you guys have any other tips or tricks to tunning 550's that i should know about? thanks guys... (what should i run for fuel pressure and stuff like that)

setup:
jdm h22 in 92 accord
johny race intercooler
apexi bov
ssauto **** mani (for now)
full 3" dp and exhaust
msd coil
adjustabel fuel pressure reg and aem rail
venom intank fuel pump


Modified by turboH22Aakkord at 6:45 PM 9/22/2005

 

ttt

 

bump before lunch....

 

Fuel Pressure can be really anything you want. 550s...i would say get the rail pressure to 40-50psi.

When you set the injector size to recurve the maps in Uberdata...it gives you a recommended value to set the main fuel and other multilpiers to. Generally, my experience is that you want it a little higher than what Uber recommends...but that you really need a wideband and you need to tune.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by xenocron &raquo;</TD></TR><TR><TD CLASS="quote">Fuel Pressure can be really anything you want. 550s...i would say get the rail pressure to 40-50psi.

When you set the injector size to recurve the maps in Uberdata...it gives you a recommended value to set the main fuel and other multilpiers to. Generally, my experience is that you want it a little higher than what Uber recommends...but that you really need a wideband and you need to tune.

</TD></TR></TABLE>

thanks for the reply, im pritty familiar with tunning (kinda) and i have a wideband, i was just wondering how much hight i should set the multipliers above the recomended.... and the only other question i had was.... what is the best way to check the fuel pressure ... i have a fuel pressure gauge on my rail, but when is the best time to check it? right after i turn the key on when the pump is priming? or when its runing or what? thanks for the response....

 

Uberdata sucks for tuning, and Im not just saying ****-- Ive experienced it with my own car. Just get Hondata and you will be much happier in the end.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by TurboCoop &raquo;</TD></TR><TR><TD CLASS="quote">Uberdata sucks for tuning, and Im not just saying ****-- Ive experienced it with my own car. Just get Hondata and you will be much happier in the end.</TD></TR></TABLE>

Ignore the ignorant. I would stick with the OEM fuel pressure unless you need to get more fuel out of the injectors which would depend on what HP you are looking for out of the 550s. I really wouldn't worry about the fuel modifiers. Just do the injector multiplier and start tuning from there. Not sure if this has been proven, but check out the post in this thread about adding additional fuel after doing the injector multiplier:

http://uberdata.pgmfi.org/foru...rt=60

I would just keep working on your fuel tables manually through datalogging and the Lambda Log rather than messing with any multipliers. I have made a couple programs and spread sheets to aid me in doing it quicker.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by King Tut33 &raquo;</TD></TR><TR><TD CLASS="quote">

Ignore the ignorant. I would stick with the OEM fuel pressure unless you need to get more fuel out of the injectors which would depend on what HP you are looking for out of the 550s. I really wouldn't worry about the fuel modifiers. Just do the injector multiplier and start tuning from there. Not sure if this has been proven, but check out the post in this thread about adding additional fuel after doing the injector multiplier:

http://uberdata.pgmfi.org/foru...rt=60

I would just keep working on your fuel tables manually through datalogging and the Lambda Log rather than messing with any multipliers. I have made a couple programs and spread sheets to aid me in doing it quicker.</TD></TR></TABLE>


kool man.. ill give it a try.. the reason i asked about the fuel pressure is ( and i forgot to mention it in the setup) but i have a venom intank fuel pump andi was told that it would probably mess up my stock fuel pressure.... thanks for the response man...

 

uberdata does suck *** though, I tried everything with that bullshit and my car still wouldnt work right. As soon as I switched to Hondata it worked perfectly.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by TurboCoop &raquo;</TD></TR><TR><TD CLASS="quote">uberdata does suck *** though, I tried everything with that bullshit and my car still wouldnt work right. As soon as I switched to Hondata it worked perfectly.</TD></TR></TABLE>

Its not the greatest program out there we all know it, but you spend enough time with it and never forget that it is free and you will see it works great.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by turboH22Aakkord &raquo;</TD></TR><TR><TD CLASS="quote">
kool man.. ill give it a try.. the reason i asked about the fuel pressure is ( and i forgot to mention it in the setup) but i have a venom intank fuel pump andi was told that it would probably mess up my stock fuel pressure.... thanks for the response man...</TD></TR></TABLE>

It might change your OEM fuel pressure so you will need a good adjustable FPR to set it back to the OEM pressure at the rail. Not sure how well the fuel pressure modifiers work in Uberdata so I wouldn't rely on them and just set the pressure back to OEM versus using the modifiers to adjust your map.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by King Tut33 &raquo;</TD></TR><TR><TD CLASS="quote">

It might change your OEM fuel pressure so you will need a good adjustable FPR to set it back to the OEM pressure at the rail. Not sure how well the fuel pressure modifiers work in Uberdata so I wouldn't rely on them and just set the pressure back to OEM versus using the modifiers to adjust your map.</TD></TR></TABLE>

right, i have an aem fuel rail and adjustable FPR i just was wondering when is the best time to check the fuel pressure... when the fuel pump is priming or when the car is running ... when?

 

bump for the right time to get correct fuel pressure readings.... ( i have a fuel gauge on rail)

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by TurboCoop &raquo;</TD></TR><TR><TD CLASS="quote">uberdata does suck *** though, I tried everything with that bullshit and my car still wouldnt work right. As soon as I switched to Hondata it worked perfectly.</TD></TR></TABLE>

Hrm....I dont prefer it either...but it works.

I'd have to guess user error if you had that bad of an experience with it. There are plenty out there who have had great success with it.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by turboH22Aakkord &raquo;</TD></TR><TR><TD CLASS="quote">bump for the right time to get correct fuel pressure readings.... ( i have a fuel gauge on rail) </TD></TR></TABLE>

Remove the vacuum line from the FPR and then set the fuel pressure to 42 psi.