---===The Official MAFT-Pro Thread===--- - Page 145 - 3000GT/Stealth International Message Center

Highboosted · 08-28-2006, 12:36 PM

Quote:

Originally Posted by |4x4 NV|

Or at least how long until you make them available?

My car is at the point where this option would help out tremendously!

If you have the boost control harness all you need is some wire and the pin.

Barefoot · 08-28-2006, 12:45 PM

Quote:

Originally Posted by Highboosted

If you have the boost control harness all you need is some wire and the pin.

Yea, thats all I was looking for. Bob is sending the wire now though!

Highboosted · 08-28-2006, 10:54 PM

Was playing with lean cruise tonight....

My car runs smooth with the AFR at 17:1 on level ground, but it likes it around 16-16.5:1 when given appriciable load up hills (just under boost). No bucks even pegged lean. Nice.

Q: When letting up the gas slightly (also when lifting completely, but not in boost), I get a massive rich spike before injector's cut off. What setting affects this? Nothing I change seems to affect it.

TurboBob · 08-28-2006, 11:07 PM

describe 'massive'

some richness is due to tune and the VE table. some is due to the way the MAP sensor value drops, the pro calculates more airflow that the MAF would read.

There is some drop-throttle MAF signal limiting available in the Pro, if you want to mess with it. Get a logfile and look at where and when it happens and I will help you tune it.

Bob

TurboBob · 08-28-2006, 11:07 PM

Quote:

Originally Posted by Highboosted

Was playing with lean cruise tonight....

My car runs smooth with the AFR at 17:1 on level ground, but it likes it around 16-16.5:1 when given appriciable load up hills (just under boost). No bucks even pegged lean. Nice.

Q: When letting up the gas slightly (also when lifting completely, but not in boost), I get a massive rich spike before injector's cut off. What setting affects this? Nothing I change seems to affect it.

16.2:1 is theoretically the optimum...... FWIW

B

junglesmacks · 08-29-2006, 07:25 AM

I have my cruise set to 16:1 and lean cruise to 16.5:1.. Works likes a dream

skunkworks · 08-29-2006, 07:35 AM

anyone check mileage yet?

Highboosted · 08-29-2006, 08:36 AM

Quote:

Originally Posted by skunkworks

anyone check mileage yet?

9 MPG tank average.

That has more to do with me driving the snot out of it tuning and such. I more normal reading will happen this coming weekend when I head out of town.

Quote:

Originally Posted by TurboBob

describe 'massive'

some richness is due to tune and the VE table. some is due to the way the MAP sensor value drops, the pro calculates more airflow that the MAF would read.

There is some drop-throttle MAF signal limiting available in the Pro, if you want to mess with it. Get a logfile and look at where and when it happens and I will help you tune it.

Bob

Pegs past 10:1 for a moment or two (limit of gauge). Can't log until I get a CD-ROM drive for my laptop. Drivability seems unaffected, just something I noticed.

TurboBob · 08-29-2006, 08:56 AM

I got about 20 mpg on the last tank, mostly city driving.

can you get on the internet with the laptop? I can email you the files.

Jeremy C · 08-29-2006, 09:55 AM

Quote:

Originally Posted by skunkworks

anyone check mileage yet?

best to date was 26mpg which was a whole lot of highway, followed by a half dozen passes at the track (I figured that I was getting ~1mpg for 1.5 gallons of fuel), then to the gas station. The lowest I've got was 20mpg this entire summer. I also check the mileage on EVERY tank of gas, and average around 23mpg no matter what I do.

The last 1/2 of the summer was no O2's and using the part throttle AFR tracking.

08-28-2006, 10:54 PM	#1443 (permalink)
Highboosted king of ghetto Join Date: May 2004 Location: St. Louis Drives: '94 Stealth Turbo Trader Rating: (29)	Re: ---===The Official MAFT-Pro Thread===--- Was playing with lean cruise tonight.... My car runs smooth with the AFR at 17:1 on level ground, but it likes it around 16-16.5:1 when given appriciable load up hills (just under boost). No bucks even pegged lean. Nice. Q: When letting up the gas slightly (also when lifting completely, but not in boost), I get a massive rich spike before injector's cut off. What setting affects this? Nothing I change seems to affect it.

08-28-2006, 11:07 PM	#1444 (permalink)
TurboBob Resident mad scientist Join Date: Jan 2003 Location: Near Detroit Drives: 86 GN 91 RT/TT Trader Rating: (17)	Re: ---===The Official MAFT-Pro Thread===--- describe 'massive' some richness is due to tune and the VE table. some is due to the way the MAP sensor value drops, the pro calculates more airflow that the MAF would read. There is some drop-throttle MAF signal limiting available in the Pro, if you want to mess with it. Get a logfile and look at where and when it happens and I will help you tune it. Bob __________________ Need a datalogger? Check out the Scanmaster 3 PM me about ECU mods for 8000+ RPM rev limits !!!!!!!! Stock = 7300 RPM Stage 1 = 8060 RPM Stage 2 = 8200 RPM Stage 3 = 8400 RPM Stage 4 = 8800 RPM (By request only) 1991 Stealth RT/TT, Grooms Shortblock, 13G's. My Stealth is for sale, 65000 miles, runs perfectly. $6,500 (a bargain)

08-29-2006, 07:25 AM	#1446 (permalink)
junglesmacks gettin' buck wild yo Join Date: Mar 2005 Location: Lake Mary, FL Drives: with a grin! Trader Rating: (3)	Re: ---===The Official MAFT-Pro Thread===--- I have my cruise set to 16:1 and lean cruise to 16.5:1.. Works likes a dream __________________ 1G VR4 / OEM shorty / GTP 357's / 660's / Dejon twins + MAFT-Pro v4.65 / other stuff..

08-29-2006, 07:35 AM	#1447 (permalink)
skunkworks No loer a Noob? Join Date: Aug 2001 Location: Holmen, WI Drives: low impedance inputs Trader Rating: (9)	Re: ---===The Official MAFT-Pro Thread===--- anyone check mileage yet? __________________ 92 Stealth R/T TT - 13t's Installed. note:Is the machining right? - boosting to 15psi so far. Do I do this for others? No. robbeck is your man.... We know his work .

08-29-2006, 08:56 AM	#1449 (permalink)
TurboBob Resident mad scientist Join Date: Jan 2003 Location: Near Detroit Drives: 86 GN 91 RT/TT Trader Rating: (17)	Re: ---===The Official MAFT-Pro Thread===--- I got about 20 mpg on the last tank, mostly city driving. can you get on the internet with the laptop? I can email you the files.

Sponsored Links
3000GT/Stealth International Message Center Advertisement

LinkBacks (?) LinkBack to this Thread: http://www.3si.org/forum/f103/official-maft-pro-thread-290438/
Posted By	For	Type	Date
HOW TO INSTALL MAFTPRO ON A 91-99 3000GT VR4/91-96 STEALTH TT	This thread	Refback	04-13-2008 01:45 AM