24 #ers instead of 30#ers

jimdrechsler · 04-13-2005, 04:07 PM

i currently have 30 # injectors in my car. i am told these are way too big and should go with 24#ers to increase performance as well as driveability. my question is, what needs to be done to the MAF if anyhting for the 24#ers? do i need to send it somewhere and get it recalibrated or do i need to buy a new one? what would be the cost for each scenario, and do yo think it is worth it with my set up? Thanks,

Jim

andy669 · 04-13-2005, 05:56 PM

I would have a chip burned or buy a PMS so I could pull some fuel out before I'd send a MAF out to be recalibrated for 1 size smaller injectors.

Andy

Dark_5.0 · 04-13-2005, 08:54 PM

Its easy to find dirt cheap 24# electronics for you mass air meter since some ford car came factory with 24# injectors.

What type of mass air sensor do you have. I have a pro-m and I use the stock 19# electronics and change out the sample tubes for diferent sized injectors.

You can simply take the black box off of a meter calibrated for 24#ers off of a factory meter and bolt it on to your sensor housing. Its really no big deal.

jimdrechsler · 04-14-2005, 03:34 PM

so do you think it is worth it to change them out? i still need to find the 24#ers if i am going to do it. i dont wan tot buy new either. any brand better than others?

sound slike i can go to junk yard and find the black box and replace it on there too??

my black box says ABCD pro-flow on it.

andy669 · 04-15-2005, 07:45 AM

If you do end up needing a set of 24's, let me know. I have a set for sale on the corral. In fact, theres several sets and several meters for sale over there.

Andy

jimdrechsler · 04-16-2005, 10:59 AM

what kind and how much? what condition are they in. thanks,

jim

andy669 · 04-16-2005, 11:18 AM

You'll find several sets here. Mine are in real good shape. Dont know if you remember StangRunner88, he used to post here alot. I bought his car and they were on it. I want $110 shipped.

Thanks
Andy

jimdrechsler · 04-17-2005, 12:19 PM

no one really replied if they thought it was worth it to switch them out with my set up. what do people think? thanks,

jim

andy669 · 04-17-2005, 09:57 PM

My good friends teenage son has about the same combo as you. He made 275 at the wheels with 24's. He would like to have 30's now, but he's got a SQ sitting on the shelf for it and he'll switch to 42's then. Do you get MM&FF? That car was in there late last year, I cant remember exactly what issue. They did a story on the whole Systemax2 kit.

Have you had your car on the dyno?

Andy

jimdrechsler · 04-18-2005, 12:10 PM

so, he must think that the 30#ers would make more power. I havent had my car on the dyno, all I know is that the holly systemax II "CLAIMS" to put out 350 HP. I know this is way too high though. All I have are my 1/4 mile times in sig to "guess" how much power im making.
Has your friends son had any problems with too much oil pressure and being sucked out for the TB?

andy669 · 04-19-2005, 08:12 AM

In your situation with the proper tune, I dont think there would be any power gains with the 30's versus the 24's. Your not close enough to maxing out the 24's where 30's are necessary. At the same time with the proper tuning device, you could keep all your 30# stuff and tune around them. I'm certain you would find some power then. Then in the future if you needed more fuel, you could just retune it, instead of looking for another set of injectors and maf, like the ones you just sold.

Andy

jimdrechsler · 04-19-2005, 11:41 AM

THanks for the info. sounds like i need to see a dyno and go from there. although, I havent sold any injectors though, i was looking at possibly buying some 24's.

Ackbar00 · 04-22-2005, 09:00 AM

I would put the 19#'rs back in. I dynoed 300 to the wheels on them with no problems at all. Even with the 75 shot, I dont think you are at that level yet.

jimdrechsler · 04-23-2005, 12:02 PM

do you think i will gain HP going smaller or better gas mileage, or anything?

04-13-2005, 04:07 PM	#1
jimdrechsler Registered Member Join Date: Apr 2001 Posts: 167	24 #ers instead of 30#ers i currently have 30 # injectors in my car. i am told these are way too big and should go with 24#ers to increase performance as well as driveability. my question is, what needs to be done to the MAF if anyhting for the 24#ers? do i need to send it somewhere and get it recalibrated or do i need to buy a new one? what would be the cost for each scenario, and do yo think it is worth it with my set up? Thanks, Jim __________________ OLD CAR-89 lx convt- Flowtech II headers, H-pipe, 2 1/2 "flowmasters- pulleys- 3.73's, ripper shifter- ram air- Best 1/4 mile time- a measley 14.2 at 98.6 PRESENT CAR- 90 LX BBK long tubes, h-pipe with cats, flowmasters. 3.55's holley systemax II kit- 70 mm TB 30#injectors, jacobs ignition, black magic fan, 180 thermostat, 75 shot of NOS- NITTO DR'S STREET TIRE BEST RUNS 1/4 mile13.2 @112 w/ NOS 2.17 60' 13.5 @103 2.1 60' *new time with Dr's 12.8 at 111 w/ 75 shot

04-13-2005, 05:56 PM	#2
andy669 Registered Member Join Date: Jan 2001 Location: Moline Il Posts: 901	Re: 24 #ers instead of 30#ers I would have a chip burned or buy a PMS so I could pull some fuel out before I'd send a MAF out to be recalibrated for 1 size smaller injectors. Andy __________________ 88 coupe 91 LX NMRA Pure Street 5120

04-13-2005, 08:54 PM	#3
Dark_5.0 Registered Member Join Date: Apr 2001 Location: Staging lane Posts: 4,337	Re: 24 #ers instead of 30#ers Its easy to find dirt cheap 24# electronics for you mass air meter since some ford car came factory with 24# injectors. What type of mass air sensor do you have. I have a pro-m and I use the stock 19# electronics and change out the sample tubes for diferent sized injectors. You can simply take the black box off of a meter calibrated for 24#ers off of a factory meter and bolt it on to your sensor housing. Its really no big deal. __________________ 92' LX-Big brakes, Lots and lots of suspension, GT40X heads, Ported cobra intake, stock cam, Vortech SC trim. 00' Lightning-Stock 88'CRX-13 second ego killer

04-14-2005, 03:34 PM	#4
jimdrechsler Registered Member Join Date: Apr 2001 Posts: 167	Re: 24 #ers instead of 30#ers so do you think it is worth it to change them out? i still need to find the 24#ers if i am going to do it. i dont wan tot buy new either. any brand better than others? sound slike i can go to junk yard and find the black box and replace it on there too?? my black box says ABCD pro-flow on it. __________________ OLD CAR-89 lx convt- Flowtech II headers, H-pipe, 2 1/2 "flowmasters- pulleys- 3.73's, ripper shifter- ram air- Best 1/4 mile time- a measley 14.2 at 98.6 PRESENT CAR- 90 LX BBK long tubes, h-pipe with cats, flowmasters. 3.55's holley systemax II kit- 70 mm TB 30#injectors, jacobs ignition, black magic fan, 180 thermostat, 75 shot of NOS- NITTO DR'S STREET TIRE BEST RUNS 1/4 mile13.2 @112 w/ NOS 2.17 60' 13.5 @103 2.1 60' *new time with Dr's 12.8 at 111 w/ 75 shot

04-15-2005, 07:45 AM	#5
andy669 Registered Member Join Date: Jan 2001 Location: Moline Il Posts: 901	Re: 24 #ers instead of 30#ers If you do end up needing a set of 24's, let me know. I have a set for sale on the corral. In fact, theres several sets and several meters for sale over there. Andy __________________ 88 coupe 91 LX NMRA Pure Street 5120

04-16-2005, 10:59 AM	#6
jimdrechsler Registered Member Join Date: Apr 2001 Posts: 167	Re: 24 #ers instead of 30#ers what kind and how much? what condition are they in. thanks, jim __________________ OLD CAR-89 lx convt- Flowtech II headers, H-pipe, 2 1/2 "flowmasters- pulleys- 3.73's, ripper shifter- ram air- Best 1/4 mile time- a measley 14.2 at 98.6 PRESENT CAR- 90 LX BBK long tubes, h-pipe with cats, flowmasters. 3.55's holley systemax II kit- 70 mm TB 30#injectors, jacobs ignition, black magic fan, 180 thermostat, 75 shot of NOS- NITTO DR'S STREET TIRE BEST RUNS 1/4 mile13.2 @112 w/ NOS 2.17 60' 13.5 @103 2.1 60' *new time with Dr's 12.8 at 111 w/ 75 shot

04-16-2005, 11:18 AM	#7
andy669 Registered Member Join Date: Jan 2001 Location: Moline Il Posts: 901	Re: 24 #ers instead of 30#ers You'll find several sets here. Mine are in real good shape. Dont know if you remember StangRunner88, he used to post here alot. I bought his car and they were on it. I want $110 shipped. Thanks Andy __________________ 88 coupe 91 LX NMRA Pure Street 5120

04-17-2005, 12:19 PM	#8
jimdrechsler Registered Member Join Date: Apr 2001 Posts: 167	Re: 24 #ers instead of 30#ers no one really replied if they thought it was worth it to switch them out with my set up. what do people think? thanks, jim __________________ OLD CAR-89 lx convt- Flowtech II headers, H-pipe, 2 1/2 "flowmasters- pulleys- 3.73's, ripper shifter- ram air- Best 1/4 mile time- a measley 14.2 at 98.6 PRESENT CAR- 90 LX BBK long tubes, h-pipe with cats, flowmasters. 3.55's holley systemax II kit- 70 mm TB 30#injectors, jacobs ignition, black magic fan, 180 thermostat, 75 shot of NOS- NITTO DR'S STREET TIRE BEST RUNS 1/4 mile13.2 @112 w/ NOS 2.17 60' 13.5 @103 2.1 60' *new time with Dr's 12.8 at 111 w/ 75 shot

04-17-2005, 09:57 PM	#9
andy669 Registered Member Join Date: Jan 2001 Location: Moline Il Posts: 901	Re: 24 #ers instead of 30#ers My good friends teenage son has about the same combo as you. He made 275 at the wheels with 24's. He would like to have 30's now, but he's got a SQ sitting on the shelf for it and he'll switch to 42's then. Do you get MM&FF? That car was in there late last year, I cant remember exactly what issue. They did a story on the whole Systemax2 kit. Have you had your car on the dyno? Andy __________________ 88 coupe 91 LX NMRA Pure Street 5120

04-18-2005, 12:10 PM	#10
jimdrechsler Registered Member Join Date: Apr 2001 Posts: 167	Re: 24 #ers instead of 30#ers so, he must think that the 30#ers would make more power. I havent had my car on the dyno, all I know is that the holly systemax II "CLAIMS" to put out 350 HP. I know this is way too high though. All I have are my 1/4 mile times in sig to "guess" how much power im making. Has your friends son had any problems with too much oil pressure and being sucked out for the TB? __________________ OLD CAR-89 lx convt- Flowtech II headers, H-pipe, 2 1/2 "flowmasters- pulleys- 3.73's, ripper shifter- ram air- Best 1/4 mile time- a measley 14.2 at 98.6 PRESENT CAR- 90 LX BBK long tubes, h-pipe with cats, flowmasters. 3.55's holley systemax II kit- 70 mm TB 30#injectors, jacobs ignition, black magic fan, 180 thermostat, 75 shot of NOS- NITTO DR'S STREET TIRE BEST RUNS 1/4 mile13.2 @112 w/ NOS 2.17 60' 13.5 @103 2.1 60' *new time with Dr's 12.8 at 111 w/ 75 shot

04-19-2005, 08:12 AM	#11
andy669 Registered Member Join Date: Jan 2001 Location: Moline Il Posts: 901	Re: 24 #ers instead of 30#ers In your situation with the proper tune, I dont think there would be any power gains with the 30's versus the 24's. Your not close enough to maxing out the 24's where 30's are necessary. At the same time with the proper tuning device, you could keep all your 30# stuff and tune around them. I'm certain you would find some power then. Then in the future if you needed more fuel, you could just retune it, instead of looking for another set of injectors and maf, like the ones you just sold. Andy __________________ 88 coupe 91 LX NMRA Pure Street 5120

04-19-2005, 11:41 AM	#12
jimdrechsler Registered Member Join Date: Apr 2001 Posts: 167	Re: 24 #ers instead of 30#ers THanks for the info. sounds like i need to see a dyno and go from there. although, I havent sold any injectors though, i was looking at possibly buying some 24's. __________________ OLD CAR-89 lx convt- Flowtech II headers, H-pipe, 2 1/2 "flowmasters- pulleys- 3.73's, ripper shifter- ram air- Best 1/4 mile time- a measley 14.2 at 98.6 PRESENT CAR- 90 LX BBK long tubes, h-pipe with cats, flowmasters. 3.55's holley systemax II kit- 70 mm TB 30#injectors, jacobs ignition, black magic fan, 180 thermostat, 75 shot of NOS- NITTO DR'S STREET TIRE BEST RUNS 1/4 mile13.2 @112 w/ NOS 2.17 60' 13.5 @103 2.1 60' *new time with Dr's 12.8 at 111 w/ 75 shot

04-22-2005, 09:00 AM	#13
Ackbar00 Rebel Fleet Commander Join Date: Oct 2001 Location: Huber Heights, OH Posts: 1,003	Re: 24 #ers instead of 30#ers I would put the 19#'rs back in. I dynoed 300 to the wheels on them with no problems at all. Even with the 75 shot, I dont think you are at that level yet. __________________ 1993 Mustang GT, PTK w/ T-64 - My Cardomain Webpage 11.25@123.5 on only 8 psi. 10.84@121 on only 1 headgasket "The Truth is, Your the Weak, and I am the Tyranny of Evil Men!"

04-23-2005, 12:02 PM	#14
jimdrechsler Registered Member Join Date: Apr 2001 Posts: 167	Re: 24 #ers instead of 30#ers do you think i will gain HP going smaller or better gas mileage, or anything? __________________ OLD CAR-89 lx convt- Flowtech II headers, H-pipe, 2 1/2 "flowmasters- pulleys- 3.73's, ripper shifter- ram air- Best 1/4 mile time- a measley 14.2 at 98.6 PRESENT CAR- 90 LX BBK long tubes, h-pipe with cats, flowmasters. 3.55's holley systemax II kit- 70 mm TB 30#injectors, jacobs ignition, black magic fan, 180 thermostat, 75 shot of NOS- NITTO DR'S STREET TIRE BEST RUNS 1/4 mile13.2 @112 w/ NOS 2.17 60' 13.5 @103 2.1 60' *new time with Dr's 12.8 at 111 w/ 75 shot

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