I am using SFMU.
So when I tune the static PSI,
I unplug the hose, but do I set the fuel when the car is FULLY WARM UP? wait till the engine bay is FULL HOT HOT!
Or what?

Because it seems like temperature has a big factor to my fuel curve.
yesterday I thought I tune it really good, but yesterday is 97F here, and I am running really lean! then last nite, it's cool off, and my car is running RICH!

SO what's up with that????
Thanks, I need help!
Gil

~~~~~~~~Modification~~~~~~~~
Performance: MegaSquirt v3.0 Fuel & Spark, 8.6:1 JE piston, Eagle Long Rods, SPEC III Clutch, EVOIII B16G, FMIC, Aeromotive 1:1 FPR, Walbro 255HP, 680cc Injectors, 2.5" DP, 3" Magnaflow Cat, 3.5" Greddy EVO CatBack, Greddy Electronic EGT,FUEL,BOOST,A/F gauges...
Interior: Racing Seats, Metallic Interior, 15-Speakers System, Keyless, Dynomat Insulated, Neons...
Exterior: 1999 Body with turbo wing, Halo Projector Headlight, 4300K HID, 17" Mille Rims, GSX Calipers...
Coming Soon: Water Injection, Redo Undercarriage, Repaint Exterior


$240 For New Complete GSX Calipers Kit (Calipers, Bracket, Shim, Pad, Bolts, etc) Email Me If Interested!

1995 RED Eclipse GS-'T': Stage VI 20PSI
2010 Audi S5 Quattro

gilee,
temp DOES play a part in tuning. mainly because of the air density.. you know the deal, cool air gooder - hot air badder. some of our cars just seem to be very tempermental to ambient temps. i know on my 8-inj set-up with the 034EFI when i tune on a hot day, i get fuel cut on cold mornings or over the winter. with my wideband, i would tune to a nice 11.3-11.5:1 on a hot night (80-90) and on a cool morning (60-70) i would hit in the 10.0-9.0:1 range..

as far as your setup, i dont know how sensative to temps running an SFMU would make your car, but over all temps do. maybe you just hit that majical line between lean and perfect in your tuning ...

USED TO HAVE...Everything you wish you had, and then some...

You are somebody special Tim, you matter! - from the admins (but nobody likes you, because your username is just like that other guy's, and you whine a lot)

COol, thanks for the quick reply Tim.
I will try to re-tune more.

I mean, it's very frustrating that after a new rebuilt motor, I cannot even go on highway coz of HIGH EGT!!! it's annoying!

Thanks alot!
Gil

~~~~~~~~Modification~~~~~~~~
Performance: MegaSquirt v3.0 Fuel & Spark, 8.6:1 JE piston, Eagle Long Rods, SPEC III Clutch, EVOIII B16G, FMIC, Aeromotive 1:1 FPR, Walbro 255HP, 680cc Injectors, 2.5" DP, 3" Magnaflow Cat, 3.5" Greddy EVO CatBack, Greddy Electronic EGT,FUEL,BOOST,A/F gauges...
Interior: Racing Seats, Metallic Interior, 15-Speakers System, Keyless, Dynomat Insulated, Neons...
Exterior: 1999 Body with turbo wing, Halo Projector Headlight, 4300K HID, 17" Mille Rims, GSX Calipers...
Coming Soon: Water Injection, Redo Undercarriage, Repaint Exterior


$240 For New Complete GSX Calipers Kit (Calipers, Bracket, Shim, Pad, Bolts, etc) Email Me If Interested!

1995 RED Eclipse GS-'T': Stage VI 20PSI
2010 Audi S5 Quattro

I also run an SFMU, I had to play with it a lot to get her running right. The AFR changes with temperature is something you have to live with, no way around it. Just tune on the rich side and use the bleed screw, it really works.