mass air conversion??

chuck88 · 10-07-2002, 10:53 AM

Has anyone converted to mass air?

I am thinking about doing it myself and I saw the unit that Brothers performance has for sale and I am considering that one and maybe with 24 lb injectors.

What do you guys think.?

Stock injectors are 19 lbs right?

How do you get the unit calibrated for different fuel injectors in case i decide to change injectors in the spring and convert to mass air now?

GT40 upper, lower ported and polished, shorty headers,n 190lph fuel pump, future heads & Cam

Chuck 88

fiveohpatrol · 10-08-2002, 12:59 PM

I've converted and its a very straightforward swap

I bought the conversion harness that plugs into the meter and just followed the instructions from it. I then bought a used 75mm pro-m and a A9P computer seperately. The kits that are sold together are a big waste of money.

Stick with the stock 19lb injectors for now, 24's are a waste of money with lower power levels.

In the future when you get your heads/cam, you will have to send the meter away to have it recalibrated for the new injectors, or if it is a C&L meter, all you have to do is change the sample tube inside it.

let me know if you have any questions about the swap

good luck

Mustang_289 · 10-08-2002, 02:57 PM

fiveohpatrol - where did you get the harness from that plugs into the meter?

We're looking to convert our 88GT this winter to MAF and we've goten a couple rough estimate prices on the complete kits something like $500.

fiveohpatrol · 10-08-2002, 05:54 PM

I got it off ebay brand new for like $30. Cant remember the company name though

Then I found a pro-m mass air meter for $75, and the computer was $60

$165 for the whole swap

88workcar · 10-08-2002, 06:08 PM

WHY WHY WHY. I gonna start a mass air haters club

Mustang_289 · 10-08-2002, 06:22 PM

88workcar - we can't even get the our 88GT SD to idle with a K&N conical filter installed. I hate to think of the problems we'd have if the intake, heads, and cam were changed.

Can you share your secrets with the 12-second SD stang?

ImportKiller · 10-08-2002, 06:44 PM

I thought you had to have 24lb injectors if your running a 351W in your ride.

Im not sure but then again what to i know...

fiveohpatrol · 10-08-2002, 08:07 PM

you need to address the problem that you currently have before swapping to mass air. My car ran fine with everything that I have done except for the cam (came after the conversion), but I knew that I had big plans for the car, and came across cheap parts to do the swap so I did it

SD will take you a long way, don't be afraid of it

88workcar · 10-09-2002, 06:53 AM

Chuck, Mustang 289, and any one else... Lee Rutter of New York, back in 1990 with a set of TFS high port heads, a wolverine 1087 cam, and a GT-40 intake, with 19lbs injectors, ran 11.00s WITH SPEED DENSITY. He is MY hero. I had problems at one time. I got a mass air set up. It did not cure the problem. I found what ever it was, then converted back to speed density. Yes it hunts occasionally, but it is not a Lincoln. If it acts up too bad I threaten to get the mass air out the shed, and it straitens up real quick.

The only thing I can not do so far is put 24lbs injectors, I run 38-39psi of fuel no matter what cam- heads combo the SD does the rest. I have had three differant heads, and three differant cams. They all worked.

I have NO secrets. I do have a helping attitude. And I also have this. Ram air, 65mmTB, ported cobra, ported E7s, E-303 cam, race pully on crank, short belt (water, alt), fuel press reg, msd 6al and blaster 2 coil, talor wires, motor craft plugs, 1 5/8 long tubes, off road pipe, Quick flows, dumped, 4.30s, axles, studs, alum drive shaft & loop, weld drag lights, skinnys, 90/10s, poly bushings in stock rear control arms, welded torque boxes, hoosiers, and a light car, 2920lbs with me and a full tank of gas. I may have missed something but I don't think so.

Mine runs 12.5s @ 108+ I drive it daily, I bring my daughter to school every morning, I drove it to Covingon, La. to escape the recent hurricane. I used less than 7 gals of gas to get there, with 4.30s.

If adding a K&N causes problems, you have other problems. I use only MOTORCRAFT 02 sensors, set tps at .99 volts, idle at 1000rpm, keep it in good tune. I have it in my head that I will run low 11s with SPEED DENSITY. Later I will put a turbo, but I think that one will get me. But I will go DFI then.

Don't give up on SD, it is more user friendly that most poeple think. What did you used to do when someone said, " You can't do that"

88workcar · 10-10-2002, 05:20 AM

I have a buddy with a IROC XXXXXX, anyway when he bought the car it had heads, cam, big runner tune port injection, tb, headers, bla, bla, bla..... It never acted right on the road. We always thought well thats the cost of running 12.70s with a car that no one else can make run. One day he tells me that the car is suppose to have a mass air meter. Then he ask What is a mass air meter? We went to auto zone, bought one, put it on in the parking lott. The car never ran so smooth, drove great used less gas, perfect.

We went to the track. The car slowed down 3 tenths and 4 mph. three passes later he unplugged the meter. The car picked up and ran what it used to. He returned the meter to autozone got his money back and drove the beast home.

And people say bad stuff about SD. I guess I am a rebel. Cause I don't want to change.

Superpromustang · 10-10-2002, 11:54 AM

I hear that, at least with speed density I could regular code scanning

drtbiker · 10-10-2002, 12:49 PM

stay speed density it is not worth the money i feel especially when there is nothing done to the car maybe with a high lift cam it would be an idea but if i were u i would stay sd!

ill tell u what i run when i go to the track
i have sd with gt-40 motor with b303 cams bbk long tubes, all u need to do is get a fuel pressure regulator and u can work ur problems out

take care
raini

i think so too 88work car

fiveohpatrol · 10-10-2002, 12:54 PM

hmm, maybe its about time for me to swap the ole' SD computer back in there and see if it'll run right. Not like I'm losing much by trying.

10-07-2002, 10:53 AM	#1
chuck88 Registered Member Join Date: May 1999 Location: Wood Ridge NJ USA Posts: 341	mass air conversion?? Has anyone converted to mass air? I am thinking about doing it myself and I saw the unit that Brothers performance has for sale and I am considering that one and maybe with 24 lb injectors. What do you guys think.? Stock injectors are 19 lbs right? How do you get the unit calibrated for different fuel injectors in case i decide to change injectors in the spring and convert to mass air now? GT40 upper, lower ported and polished, shorty headers,n 190lph fuel pump, future heads & Cam Chuck 88

10-08-2002, 12:59 PM	#2
fiveohpatrol I'd rather be basketweaving Join Date: Feb 2000 Location: Indianapolis Posts: 2,551	I've converted and its a very straightforward swap I bought the conversion harness that plugs into the meter and just followed the instructions from it. I then bought a used 75mm pro-m and a A9P computer seperately. The kits that are sold together are a big waste of money. Stick with the stock 19lb injectors for now, 24's are a waste of money with lower power levels. In the future when you get your heads/cam, you will have to send the meter away to have it recalibrated for the new injectors, or if it is a C&L meter, all you have to do is change the sample tube inside it. let me know if you have any questions about the swap good luck __________________ NMRA O/C 9516 NA pumpgas stickshift 347 10.65@125.6, 6.73@100, 1.41 60ft

10-08-2002, 05:54 PM	#4
fiveohpatrol I'd rather be basketweaving Join Date: Feb 2000 Location: Indianapolis Posts: 2,551	I got it off ebay brand new for like $30. Cant remember the company name though Then I found a pro-m mass air meter for $75, and the computer was $60 $165 for the whole swap __________________ NMRA O/C 9516 NA pumpgas stickshift 347 10.65@125.6, 6.73@100, 1.41 60ft

10-08-2002, 06:08 PM	#5
88workcar Registered Member Join Date: Oct 1999 Location: Pierre Part, La. U.S.A. Posts: 1,850	WHY WHY WHY. I gonna start a mass air haters club __________________ 88workcar 1988 Mustang LX 342. 417rwhp @ 6800. 28 X 10 ET Drag, 4.30s, 10.69 @ 126.43 1.42 60ft. 11.13 @ 127.7 on BFGs 1.72 60ft Rice Hater # 42 To be old and wise, You must first be young and stupid I'm somewhere in tthe middle.

10-08-2002, 06:44 PM	#7
ImportKiller Registered Member Join Date: Oct 2002 Location: Chula vista, CA Posts: 67	I thought you had to have 24lb injectors if your running a 351W in your ride. Im not sure but then again what to i know... __________________ "Of all the gin joints in all the towns in all the world, she walks into mine." http://geocities.com/team340maxim 1989 Mustang LX 5.0 JBA Headers, Bassani X-Pipe Mac 3' Catback system.

10-08-2002, 02:57 PM	#3
Mustang_289 Registered Member Join Date: Sep 2001 Posts: 512	fiveohpatrol - where did you get the harness from that plugs into the meter? We're looking to convert our 88GT this winter to MAF and we've goten a couple rough estimate prices on the complete kits something like $500.

10-08-2002, 06:22 PM	#6
Mustang_289 Registered Member Join Date: Sep 2001 Posts: 512	88workcar - we can't even get the our 88GT SD to idle with a K&N conical filter installed. I hate to think of the problems we'd have if the intake, heads, and cam were changed. Can you share your secrets with the 12-second SD stang?

10-08-2002, 08:07 PM	#8
fiveohpatrol I'd rather be basketweaving Join Date: Feb 2000 Location: Indianapolis Posts: 2,551	you need to address the problem that you currently have before swapping to mass air. My car ran fine with everything that I have done except for the cam (came after the conversion), but I knew that I had big plans for the car, and came across cheap parts to do the swap so I did it SD will take you a long way, don't be afraid of it __________________ NMRA O/C 9516 NA pumpgas stickshift 347 10.65@125.6, 6.73@100, 1.41 60ft

10-09-2002, 06:53 AM	#9
88workcar Registered Member Join Date: Oct 1999 Location: Pierre Part, La. U.S.A. Posts: 1,850	Chuck, Mustang 289, and any one else... Lee Rutter of New York, back in 1990 with a set of TFS high port heads, a wolverine 1087 cam, and a GT-40 intake, with 19lbs injectors, ran 11.00s WITH SPEED DENSITY. He is MY hero. I had problems at one time. I got a mass air set up. It did not cure the problem. I found what ever it was, then converted back to speed density. Yes it hunts occasionally, but it is not a Lincoln. If it acts up too bad I threaten to get the mass air out the shed, and it straitens up real quick. The only thing I can not do so far is put 24lbs injectors, I run 38-39psi of fuel no matter what cam- heads combo the SD does the rest. I have had three differant heads, and three differant cams. They all worked. I have NO secrets. I do have a helping attitude. And I also have this. Ram air, 65mmTB, ported cobra, ported E7s, E-303 cam, race pully on crank, short belt (water, alt), fuel press reg, msd 6al and blaster 2 coil, talor wires, motor craft plugs, 1 5/8 long tubes, off road pipe, Quick flows, dumped, 4.30s, axles, studs, alum drive shaft & loop, weld drag lights, skinnys, 90/10s, poly bushings in stock rear control arms, welded torque boxes, hoosiers, and a light car, 2920lbs with me and a full tank of gas. I may have missed something but I don't think so. Mine runs 12.5s @ 108+ I drive it daily, I bring my daughter to school every morning, I drove it to Covingon, La. to escape the recent hurricane. I used less than 7 gals of gas to get there, with 4.30s. If adding a K&N causes problems, you have other problems. I use only MOTORCRAFT 02 sensors, set tps at .99 volts, idle at 1000rpm, keep it in good tune. I have it in my head that I will run low 11s with SPEED DENSITY. Later I will put a turbo, but I think that one will get me. But I will go DFI then. Don't give up on SD, it is more user friendly that most poeple think. What did you used to do when someone said, " You can't do that" __________________ 88workcar 1988 Mustang LX 342. 417rwhp @ 6800. 28 X 10 ET Drag, 4.30s, 10.69 @ 126.43 1.42 60ft. 11.13 @ 127.7 on BFGs 1.72 60ft Rice Hater # 42 To be old and wise, You must first be young and stupid I'm somewhere in tthe middle.

10-10-2002, 05:20 AM	#10
88workcar Registered Member Join Date: Oct 1999 Location: Pierre Part, La. U.S.A. Posts: 1,850	I have a buddy with a IROC XXXXXX, anyway when he bought the car it had heads, cam, big runner tune port injection, tb, headers, bla, bla, bla..... It never acted right on the road. We always thought well thats the cost of running 12.70s with a car that no one else can make run. One day he tells me that the car is suppose to have a mass air meter. Then he ask What is a mass air meter? We went to auto zone, bought one, put it on in the parking lott. The car never ran so smooth, drove great used less gas, perfect. We went to the track. The car slowed down 3 tenths and 4 mph. three passes later he unplugged the meter. The car picked up and ran what it used to. He returned the meter to autozone got his money back and drove the beast home. And people say bad stuff about SD. I guess I am a rebel. Cause I don't want to change. __________________ 88workcar 1988 Mustang LX 342. 417rwhp @ 6800. 28 X 10 ET Drag, 4.30s, 10.69 @ 126.43 1.42 60ft. 11.13 @ 127.7 on BFGs 1.72 60ft Rice Hater # 42 To be old and wise, You must first be young and stupid I'm somewhere in tthe middle.

10-10-2002, 11:54 AM	#11
Superpromustang Registered Member Join Date: Oct 2002 Location: Carthage, MO Posts: 59	I hear that, at least with speed density I could regular code scanning

10-10-2002, 12:49 PM	#12
drtbiker Registered Member Join Date: Jan 2002 Location: Mt. Prospect,IL Posts: 474	stay speed density it is not worth the money i feel especially when there is nothing done to the car maybe with a high lift cam it would be an idea but if i were u i would stay sd! ill tell u what i run when i go to the track i have sd with gt-40 motor with b303 cams bbk long tubes, all u need to do is get a fuel pressure regulator and u can work ur problems out take care raini i think so too 88work car __________________ 87-ford-mustang-SOLD! mods: 3:73's, off road h-pipe, b303 cam in gt- 40 motor w/ Power Plus intake, edelbrock 70mm tb & egr spacer, 72mm C&L, bbk long tubes, tremec tranny, centerforce dual friction clutch, upr and lwr CA's 255lph FP and soon more to come.... when i have money again SOME ADVICE Don't do burn outs in reverse it is very expensive New times with dead hook on dr's 13.27@103 with 2.0 60 foots w/100lb system Fastest time to date: 12.8@113

10-10-2002, 12:54 PM	#13
fiveohpatrol I'd rather be basketweaving Join Date: Feb 2000 Location: Indianapolis Posts: 2,551	hmm, maybe its about time for me to swap the ole' SD computer back in there and see if it'll run right. Not like I'm losing much by trying. __________________ NMRA O/C 9516 NA pumpgas stickshift 347 10.65@125.6, 6.73@100, 1.41 60ft

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