MAF Questions.... Again

ChunkFunky · 02-21-2003, 02:08 PM

Sorry guys, but I cant search for MAF or Mass Air cause it's too few characters... anyway...

I've got twisted wedges heads, street intake and stage 1 cam to match... I suppose the next step is 24# injectors and a MAF sensor to match... though they come in various diameters... wondering what the right size for me would be...is 73mm too small... does that diameter make alot of difference? hardly seems like 2mm would be noticable...

another wierd question.. what would happen if you put 24# incjecters in and left the stock MAF... would it just run rich?
-as

gtsr515 · 02-21-2003, 06:45 PM

A larger MAF won't help you much unless you have a larger throttle body/EGR spacer to go with it, which in my opinion should have been done BEFORE or at the same time as the heads,cam, intake swap.

Also, IMO.....24# injectors are worthless, they are barley better than 19's, I would go with 30's, an AFPR, 77mm Pro-M, and a 75mm TB.....you are naturally aspirated, so more in.....more out.

Also do you have headers????????, also you need a 3.73 gear.

Just my thoughts..........

Jay

mike72678 · 02-22-2003, 12:59 AM

A 75 mm mass air meter will support a 600 hp engine efficiently , so you be the judge on your set up . You definitely should change the throttle body as well though . I know the #24 injectors will be fine with your set up , but if you are planning on carrying it further , you might want to invest in the #30's so you don't end up buying injectors twice.

88workcar · 02-22-2003, 06:30 AM

I don't know if any of that makes a differance at all. 89grocerygetter has a stock bottom, 165 AFRs, HR266, Holly Intake, S T O C K TB, a 73mm C&L cal for 19#, 22lph MOPAR injectors. His car runs perfect, idles great, and runs 12.0s @114.

ChunkFunky · 02-22-2003, 07:47 AM

I'm sorry I didnt mention the TB... I bought the whole setup from someone... so it has 70MMTB and 70MMEGR...

I have headers I bought as well, BBK shorties, and 3.73s I bought too... I buy stuff when I find it for a good price.. so I've been collecting parts for a while now, and I finaly have everythign I need to do this.. so there's only a few things like injecters and MAS and a FPR, those I might as well just buy new
-as

02-26-2003, 02:51 PM

I'd go with 24lb. injectors. You won't need the 30lbers unless you plan on throwing a blower or gobs of nitrous on the motor sometime soon.

02-21-2003, 02:08 PM	#1
ChunkFunky Registered Member Join Date: Apr 2002 Location: Tustin, CA Posts: 465	MAF Questions.... Again Sorry guys, but I cant search for MAF or Mass Air cause it's too few characters... anyway... I've got twisted wedges heads, street intake and stage 1 cam to match... I suppose the next step is 24# injectors and a MAF sensor to match... though they come in various diameters... wondering what the right size for me would be...is 73mm too small... does that diameter make alot of difference? hardly seems like 2mm would be noticable... another wierd question.. what would happen if you put 24# incjecters in and left the stock MAF... would it just run rich? -as __________________ '89 GT Convertible: TFS TW Heads, TFS Street Intake, TFS Stage 1 Cam, FMS 1.6 RRs, 24# Injectors, Pro-M 75mm MAF, No Name CAI, 3.73s, O/R H-Pipe, FlowMasters, AOD w/ Trans-Go Shift Kit

02-22-2003, 06:30 AM	#4
88workcar Registered Member Join Date: Oct 1999 Location: Pierre Part, La. U.S.A. Posts: 1,850	I don't know if any of that makes a differance at all. 89grocerygetter has a stock bottom, 165 AFRs, HR266, Holly Intake, S T O C K TB, a 73mm C&L cal for 19#, 22lph MOPAR injectors. His car runs perfect, idles great, and runs 12.0s @114. __________________ 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.

02-22-2003, 07:47 AM	#5
ChunkFunky Registered Member Join Date: Apr 2002 Location: Tustin, CA Posts: 465	I'm sorry I didnt mention the TB... I bought the whole setup from someone... so it has 70MMTB and 70MMEGR... I have headers I bought as well, BBK shorties, and 3.73s I bought too... I buy stuff when I find it for a good price.. so I've been collecting parts for a while now, and I finaly have everythign I need to do this.. so there's only a few things like injecters and MAS and a FPR, those I might as well just buy new -as __________________ '89 GT Convertible: TFS TW Heads, TFS Street Intake, TFS Stage 1 Cam, FMS 1.6 RRs, 24# Injectors, Pro-M 75mm MAF, No Name CAI, 3.73s, O/R H-Pipe, FlowMasters, AOD w/ Trans-Go Shift Kit

02-26-2003, 02:51 PM	#6
Simi Stang Guest Posts: n/a	injectors I'd go with 24lb. injectors. You won't need the 30lbers unless you plan on throwing a blower or gobs of nitrous on the motor sometime soon.

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02-21-2003, 06:45 PM	#2
gtsr515 Registered Member Join Date: Nov 2001 Location: Sunny, Hot, Sebring, Florida Posts: 725	MAF...... A larger MAF won't help you much unless you have a larger throttle body/EGR spacer to go with it, which in my opinion should have been done BEFORE or at the same time as the heads,cam, intake swap. Also, IMO.....24# injectors are worthless, they are barley better than 19's, I would go with 30's, an AFPR, 77mm Pro-M, and a 75mm TB.....you are naturally aspirated, so more in.....more out. Also do you have headers????????, also you need a 3.73 gear. Just my thoughts.......... Jay __________________ Remember...2nd place is 1st place for losers!

02-22-2003, 12:59 AM	#3
mike72678 MW Link Sponsor Join Date: Sep 2002 Location: rochester , ny Posts: 79	A 75 mm mass air meter will support a 600 hp engine efficiently , so you be the judge on your set up . You definitely should change the throttle body as well though . I know the #24 injectors will be fine with your set up , but if you are planning on carrying it further , you might want to invest in the #30's so you don't end up buying injectors twice.

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