which MAF? 73mm, 76mm, 80mm??

acidangel316 · 06-18-2001, 09:49 PM

i have a 89 GT 5.0 stang which has the following mods:

MAC 70mm tb & egr spacer
TRICK FLOW street intake
ADS performance chip
under drive pulleys
K&N cold intake sys.
bbk shortties & h-pipe
3.73 gears

what does the difference in size matter for the MAF sensors? my goal is to keep as much gas mileage as possible with this car, does having a bigger air flow have a negative effect? i do want to keep the 19# inj.'s on it and i'm thinking about getting the 73mm C&L MAF? should this be fine??

thanks

TEXSN95 · 06-18-2001, 10:12 PM

Save your money towards a new pair of shocks or subframe connetors. The C&L wont do squat right now.

------------------
Clint L.
White 95 Cobra #3637
58cc GT40X heads with mild porting, Crane 2031 cam, FRPP 65 TB, 1.7s, Cobra intake, homeade cold air, 155lph, pullies, Tokico Illuminas, C springs, GW LCAs, Kenny Brown super subs, Steeda CC plates, aluminum driveshaft, Steeda quadrant, B&M ripper, Kirban FPR, MSD6A, Taylor wires, Mac shorties, off road hpipe, 2 1/2 ultra flows w/ dumps, R hood, Euro clear corners, stock 3.08s
13.61 @ 104.7 w/ 2.22

90dpscoupe · 06-19-2001, 12:16 AM

Hey acidangel, how do you like that a.d.s chip? do you run a thermostat in your car?

Oh, the subframe connectors are a good idea, but id go with a 75 maf when the time comes.

------------------
90 lx coupe: 175k miles, steeda water pump pully, hurst shifter, Mac cold air fenderwell, accel supercoil, ADS chip, aluminum D/S, Black magic fan, 3.27grs.
Best time: 13.9116(on 225/60/15 firehawks)
Best mph: 98.17
Best 60': 1.9607

next mods: subframes, mac h-pipe

acidangel316 · 06-19-2001, 11:23 AM

the ads chip is nice.. but i haven't tryed any other chip to compare it to. it "apparently" adds 38hp/15lbs from mildly modified. i'm not sure if adds that much but i sure can feel the difference in drivability. plus, you can't beat the price.. only $170 through summit.

-josh

06-19-2001, 01:03 PM

Josh, weld-in subframes are a must on every stang (that's a given). But, to answer your question, yes, you need to upgrade your MAF to a 75 now. Your stock MAF isn't sucking enough air to feed that TB or TFS intake.

------------------
'90 LX 5.0; 12K original miles (no sh*&); 3.55 gears; pulleys;Edelbrock Performer Heads; BBK shorties; MSD 6AL box w/ blaster 2 coil; Motorsport E303 cam; Pro-M 75mm MAF; BBK 70mm TB; Eibach spring kit; Southside welded subs; K&N cone filter charger; Hurst shifter; fiberglass turbo hood; A/C-less; rear seat-less; cat-less; 2 chamber Flos; Corbeau racing seats (fronts);
30# injectors; JMS Chip; 190 lb fp; TFS track heat Intake (12.299 @ 113)

90dpscoupe · 06-19-2001, 01:34 PM

Cool, i have one ads chip, i got it for free, but i dont feel a difference, or see it on timeslips, although i was told they are made to run with o-r h-pipe, and a colder stat, not sure if this is true, but sounds about right??

I still have cats and stock temp stat.

And i'll have to agree with bada$$lx, subs are a must for any stang, i posted about my friends 85 coupe that had some welded, the car felt tighter, more responsive, i cant wait for mine.

------------------
90 lx coupe: 175k miles, steeda water pump pully, hurst shifter, Mac cold air fenderwell, accel supercoil, ADS chip, aluminum D/S, Black magic fan, 3.27grs.
Best time: 13.9116(on 225/60/15 firehawks)
Best mph: 98.17
Best 60': 1.9607

next mods: subframes, mac h-pipe

Rick 91GT · 06-19-2001, 01:37 PM

I have had good luck with my 76mm C&L, I would suggest that, however I agree I am not sure exactly how much power you will see, maybe 6HP. For some reason the Pro-M 75mm doesn't work as well with 24# injectors which you probably will go to eventually. I had the 75mm and it ran rich at low rpms and I haven't had any of those problems with the 76mm C&L and the tube looks great!

Definity go with a pair of subframes, they are a must.

------------------
Check Out My Site 91GT,Holley SysteMAX II Kit-Heads 2.02" x 1.60" port matched to a 1262,Anderson N-61,24#,76mm C&L,Full MAC exhaust 1-5/8" Long tubes,2-1/2" O.R H-Pipe,2 1/2" cat back, No A/C or PS or emissions, 12" K&N Filter,RNH PERFORMANCE Ram Air,Ron Davis Radiator,Full Suspension,S&W 8pt "X" brace,JAZ seats,3:73's,Welds..etc,4:30's and 31 splines coming very soon! FIRST TIME OUT 12.16@111 WHEELS-UP

acidangel316 · 06-19-2001, 01:49 PM

thanks for the info guys. by the way, know of any cheap places to get sub-frame connectors? cheapest i know is summit for $90...

thanks, josh

TEXSN95 · 06-19-2001, 02:37 PM

If you get subs get the full length. I got my kenny brown super subs from houston performance for $89. The ADS chip is junk. How they can claim 38hp is beyond me. I used to have one in my 90gt. Take it out and bump your timing to 14 and that will help even more.

------------------
Clint L.
White 95 Cobra #3637
58cc GT40X heads with mild porting, Crane 2031 cam, FRPP 65 TB, 1.7s, Cobra intake, homeade cold air, 155lph, pullies, Tokico Illuminas, C springs, GW LCAs, Kenny Brown super subs, Steeda CC plates, aluminum driveshaft, Steeda quadrant, B&M ripper, Kirban FPR, MSD6A, Taylor wires, Mac shorties, off road hpipe, 2 1/2 ultra flows w/ dumps, R hood, Euro clear corners, stock 3.08s
13.61 @ 104.7 w/ 2.22

06-18-2001, 09:49 PM	#1
acidangel316 Registered Member Join Date: Jun 2001 Posts: 27	which MAF? 73mm, 76mm, 80mm?? i have a 89 GT 5.0 stang which has the following mods: MAC 70mm tb & egr spacer TRICK FLOW street intake ADS performance chip under drive pulleys K&N cold intake sys. bbk shortties & h-pipe 3.73 gears what does the difference in size matter for the MAF sensors? my goal is to keep as much gas mileage as possible with this car, does having a bigger air flow have a negative effect? i do want to keep the 19# inj.'s on it and i'm thinking about getting the 73mm C&L MAF? should this be fine?? thanks

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06-18-2001, 10:12 PM	#2
TEXSN95 Registered Member Join Date: Mar 2001 Location: college station, tx Posts: 143	Save your money towards a new pair of shocks or subframe connetors. The C&L wont do squat right now. ------------------ Clint L. White 95 Cobra #3637 58cc GT40X heads with mild porting, Crane 2031 cam, FRPP 65 TB, 1.7s, Cobra intake, homeade cold air, 155lph, pullies, Tokico Illuminas, C springs, GW LCAs, Kenny Brown super subs, Steeda CC plates, aluminum driveshaft, Steeda quadrant, B&M ripper, Kirban FPR, MSD6A, Taylor wires, Mac shorties, off road hpipe, 2 1/2 ultra flows w/ dumps, R hood, Euro clear corners, stock 3.08s 13.61 @ 104.7 w/ 2.22

06-19-2001, 12:16 AM	#3
90dpscoupe Registered Member Join Date: Jun 2000 Location: sanantonio, Tx, usa Posts: 1,407	Hey acidangel, how do you like that a.d.s chip? do you run a thermostat in your car? Oh, the subframe connectors are a good idea, but id go with a 75 maf when the time comes. ------------------ 90 lx coupe: 175k miles, steeda water pump pully, hurst shifter, Mac cold air fenderwell, accel supercoil, ADS chip, aluminum D/S, Black magic fan, 3.27grs. Best time: 13.9116(on 225/60/15 firehawks) Best mph: 98.17 Best 60': 1.9607 next mods: subframes, mac h-pipe

06-19-2001, 11:23 AM	#4
acidangel316 Registered Member Join Date: Jun 2001 Posts: 27	the ads chip is nice.. but i haven't tryed any other chip to compare it to. it "apparently" adds 38hp/15lbs from mildly modified. i'm not sure if adds that much but i sure can feel the difference in drivability. plus, you can't beat the price.. only $170 through summit. -josh

06-19-2001, 01:03 PM	#5
bada$$lx Guest Posts: n/a	Josh, weld-in subframes are a must on every stang (that's a given). But, to answer your question, yes, you need to upgrade your MAF to a 75 now. Your stock MAF isn't sucking enough air to feed that TB or TFS intake. ------------------ '90 LX 5.0; 12K original miles (no sh*&); 3.55 gears; pulleys;Edelbrock Performer Heads; BBK shorties; MSD 6AL box w/ blaster 2 coil; Motorsport E303 cam; Pro-M 75mm MAF; BBK 70mm TB; Eibach spring kit; Southside welded subs; K&N cone filter charger; Hurst shifter; fiberglass turbo hood; A/C-less; rear seat-less; cat-less; 2 chamber Flos; Corbeau racing seats (fronts); 30# injectors; JMS Chip; 190 lb fp; TFS track heat Intake (12.299 @ 113)

06-19-2001, 01:34 PM	#6
90dpscoupe Registered Member Join Date: Jun 2000 Location: sanantonio, Tx, usa Posts: 1,407	Cool, i have one ads chip, i got it for free, but i dont feel a difference, or see it on timeslips, although i was told they are made to run with o-r h-pipe, and a colder stat, not sure if this is true, but sounds about right?? I still have cats and stock temp stat. And i'll have to agree with bada$$lx, subs are a must for any stang, i posted about my friends 85 coupe that had some welded, the car felt tighter, more responsive, i cant wait for mine. ------------------ 90 lx coupe: 175k miles, steeda water pump pully, hurst shifter, Mac cold air fenderwell, accel supercoil, ADS chip, aluminum D/S, Black magic fan, 3.27grs. Best time: 13.9116(on 225/60/15 firehawks) Best mph: 98.17 Best 60': 1.9607 next mods: subframes, mac h-pipe

06-19-2001, 01:37 PM	#7
Rick 91GT Procharged! Join Date: May 1999 Location: Hanover, PA Posts: 1,539	I have had good luck with my 76mm C&L, I would suggest that, however I agree I am not sure exactly how much power you will see, maybe 6HP. For some reason the Pro-M 75mm doesn't work as well with 24# injectors which you probably will go to eventually. I had the 75mm and it ran rich at low rpms and I haven't had any of those problems with the 76mm C&L and the tube looks great! Definity go with a pair of subframes, they are a must. ------------------ Check Out My Site 91GT,Holley SysteMAX II Kit-Heads 2.02" x 1.60" port matched to a 1262,Anderson N-61,24#,76mm C&L,Full MAC exhaust 1-5/8" Long tubes,2-1/2" O.R H-Pipe,2 1/2" cat back, No A/C or PS or emissions, 12" K&N Filter,RNH PERFORMANCE Ram Air,Ron Davis Radiator,Full Suspension,S&W 8pt "X" brace,JAZ seats,3:73's,Welds..etc,4:30's and 31 splines coming very soon! FIRST TIME OUT 12.16@111 WHEELS-UP

06-19-2001, 01:49 PM	#8
acidangel316 Registered Member Join Date: Jun 2001 Posts: 27	thanks for the info guys. by the way, know of any cheap places to get sub-frame connectors? cheapest i know is summit for $90... thanks, josh

06-19-2001, 02:37 PM	#9
TEXSN95 Registered Member Join Date: Mar 2001 Location: college station, tx Posts: 143	If you get subs get the full length. I got my kenny brown super subs from houston performance for $89. The ADS chip is junk. How they can claim 38hp is beyond me. I used to have one in my 90gt. Take it out and bump your timing to 14 and that will help even more. ------------------ Clint L. White 95 Cobra #3637 58cc GT40X heads with mild porting, Crane 2031 cam, FRPP 65 TB, 1.7s, Cobra intake, homeade cold air, 155lph, pullies, Tokico Illuminas, C springs, GW LCAs, Kenny Brown super subs, Steeda CC plates, aluminum driveshaft, Steeda quadrant, B&M ripper, Kirban FPR, MSD6A, Taylor wires, Mac shorties, off road hpipe, 2 1/2 ultra flows w/ dumps, R hood, Euro clear corners, stock 3.08s 13.61 @ 104.7 w/ 2.22