HELP Running lean with 50lbs injectors - Page 7

Shankin · 12-16-2005, 06:22 AM

If you installed the cam with the A on the sprocket and the dot on the cam facing one another the cam is still installed straight up. look somewhere else for your problem more than likelly thats not it.

sinistercoupe · 12-17-2005, 12:58 PM

any fix to this problem? I'm having the same problem...14:1 air fuel ratio at WOT with a blow through bullet calibrated for 50s and the fuel system is huge and the fuel pressure doesn't drop. I talked to PMAS about this and he said after 42s and esp on a blowthrough application its required to go into the EEC and change the maf transfer and injector slopes.

I could go trying to rotate the meter to get it into its sweet spot but thats just a PITA on my car and its kind of ghetto to try and tune a car like that plus i don't have the room to rotate it much either way. I'm picking up a Tweecer this weekend so i can dial this thing in properly.

04 Mach1 · 12-17-2005, 04:25 PM

I to talked to pmas and they said about the same need a tune. I have tried to turn the meter with no luck. Have some people coming to look at it to make sure its not something obvious. I'm looking for a tuneable set up to but not sure witch way to go. What made you decide to go with a Tweecer setup?

sinistercoupe · 12-17-2005, 04:41 PM

Quote:

Originally Posted by 04 Mach1

I to talked to pmas and they said about the same need a tune. I have tried to turn the meter with no luck. Have some people coming to look at it to make sure its not something obvious. I'm looking for a tuneable set up to but not sure witch way to go. What made you decide to go with a Tweecer setup?

just found a good deal on one. It takes some learning from what i have read to get familar with it though. I'm willing to learn though in order to have the car tuned properly and not have to rely on pro-m/pmas hit or miss meters and hoping the calibration is right.

04 Mach1 · 12-17-2005, 05:01 PM

Ya I think the meter recal is my problem. I have sent it in twice the second time it come back the car runs (idles) better. I have thought about getting some one to tune it but then what happens when I change the boost it will need another tune. So I guess I'm now looking for a tuneable software set up.

QWKSNKE · 12-18-2005, 03:53 AM

Marc,
I am going to try and get in touch with you today but it will probably be later on this evening. (4'ish or so)

QWKSNKE · 12-19-2005, 06:39 AM

update..

Determined (along with Wikd GT and Dale) that the car is running waaaaay fat. Turned the fuel pressure down to 39 psi and bumped the timing up from 0 to 9 degrees initial. Headers quit glowing at idle but still glow when you hold the car at 2800 rpm with no load.

Time for a tune

sinistercoupe · 12-19-2005, 09:04 AM

on the dyno was it reading lean or rich? i assume they had a WB on it there?

QWKSNKE · 12-19-2005, 09:34 AM

Quote:

Originally Posted by sinistercoupe

on the dyno was it reading lean or rich? i assume they had a WB on it there?

car has not been dyno'd with the 50's. With the FMU and 30's it was running lean.

Now, with just the 50's its running to fat

04 Mach1 · 12-19-2005, 02:34 PM

Correction: The car was never dynoed with the 30lbs. It was dynoed with the 50lbs and ran lean. Since the dyno the meter has been re-done and now flow tests ok.

12-16-2005, 06:22 AM	#61
Shankin Senior Member Join Date: Jul 2005 Posts: 339	Re: HELP Running lean with 50lbs injectors If you installed the cam with the A on the sprocket and the dot on the cam facing one another the cam is still installed straight up. look somewhere else for your problem more than likelly thats not it. __________________ Pro Speed Performance 770 222 5015

12-17-2005, 12:58 PM	#62
sinistercoupe Junior Member Join Date: Dec 2005 Posts: 23	Re: HELP Running lean with 50lbs injectors any fix to this problem? I'm having the same problem...14:1 air fuel ratio at WOT with a blow through bullet calibrated for 50s and the fuel system is huge and the fuel pressure doesn't drop. I talked to PMAS about this and he said after 42s and esp on a blowthrough application its required to go into the EEC and change the maf transfer and injector slopes. I could go trying to rotate the meter to get it into its sweet spot but thats just a PITA on my car and its kind of ghetto to try and tune a car like that plus i don't have the room to rotate it much either way. I'm picking up a Tweecer this weekend so i can dial this thing in properly.

12-17-2005, 04:25 PM	#63
04 Mach1 Bet I red light B4U Join Date: Aug 2005 Location: ANNISTON, AL Posts: 975	Re: HELP Running lean with 50lbs injectors I to talked to pmas and they said about the same need a tune. I have tried to turn the meter with no luck. Have some people coming to look at it to make sure its not something obvious. I'm looking for a tuneable set up to but not sure witch way to go. What made you decide to go with a Tweecer setup?

12-17-2005, 05:01 PM	#65
04 Mach1 Bet I red light B4U Join Date: Aug 2005 Location: ANNISTON, AL Posts: 975	Re: HELP Running lean with 50lbs injectors Ya I think the meter recal is my problem. I have sent it in twice the second time it come back the car runs (idles) better. I have thought about getting some one to tune it but then what happens when I change the boost it will need another tune. So I guess I'm now looking for a tuneable software set up.

12-18-2005, 03:53 AM	#66
QWKSNKE 3v's are slow Join Date: Dec 2004 Location: Here and There Posts: 17,152	Re: HELP Running lean with 50lbs injectors Marc, I am going to try and get in touch with you today but it will probably be later on this evening. (4'ish or so) __________________ 2009 Porsche Carrera S 2008 ///AMG C63.. Eurocharge Tune. RIP 2019 AMG GLC43..wife's 03 F250 SD.. Edge Evo, AFE Stage 1 CAI 08 GT. JBA axle back, FRPP springs, FRPP swaybars.. daughter's 01 Cobra vert... wife's I need a new toy

12-19-2005, 06:39 AM	#67
QWKSNKE 3v's are slow Join Date: Dec 2004 Location: Here and There Posts: 17,152	Re: HELP Running lean with 50lbs injectors update.. Determined (along with Wikd GT and Dale) that the car is running waaaaay fat. Turned the fuel pressure down to 39 psi and bumped the timing up from 0 to 9 degrees initial. Headers quit glowing at idle but still glow when you hold the car at 2800 rpm with no load. Time for a tune __________________ 2009 Porsche Carrera S 2008 ///AMG C63.. Eurocharge Tune. RIP 2019 AMG GLC43..wife's 03 F250 SD.. Edge Evo, AFE Stage 1 CAI 08 GT. JBA axle back, FRPP springs, FRPP swaybars.. daughter's 01 Cobra vert... wife's I need a new toy

12-19-2005, 09:04 AM	#68
sinistercoupe Junior Member Join Date: Dec 2005 Posts: 23	Re: HELP Running lean with 50lbs injectors on the dyno was it reading lean or rich? i assume they had a WB on it there?

12-19-2005, 02:34 PM	#70
04 Mach1 Bet I red light B4U Join Date: Aug 2005 Location: ANNISTON, AL Posts: 975	Re: HELP Running lean with 50lbs injectors Correction: The car was never dynoed with the 30lbs. It was dynoed with the 50lbs and ran lean. Since the dyno the meter has been re-done and now flow tests ok.