Injector Upgrade Question...

Agent_4573 · 05-08-2002, 06:25 PM

At the end of this summer I'm planning on putting in a new mass air, new throttle body and 24# injectors... What kinda stuff am i gonna have to do to the computer though? Will i have to get a new chip, or will resetthing the computer be enough? I ask now because I'm starting to buy the stuff now and I'm just gonna hold off and put it all on my car when i have everything. I'm just trrying to figure out how much its gonna cost to do this...

Sonics2042 · 05-08-2002, 06:44 PM

I think resetting computer should be enough....But I don't think you need the larger TB. I think most would agree as well.

I think you lose HP with larger TB and MAF on near stock applications.

Thanks,
DoranW

91GTturbo · 05-08-2002, 07:11 PM

You want have to do anything to the computer itself and no chip is needed for what your planning on doing.

Sonic is right in one respect, your going to loss a little power due to the 70 mm TB. I would stick with 65 mm as the max size, unless your buying these parts for future plans like a stroker motor or a blower. If thats your plan, your right on track for now.
I will say I've seen on more than once occasion cars make over 400 rwhp with a 65 mm TB on them.

Agent_4573 · 05-08-2002, 08:09 PM

I'm not planning on a blower, but i am planning on aftermarket heads within the year, and possible a 327 stroker kit, but it depends on how much money i make this summer. If i only go with aftermarket heads and an intake, would you recommend a 65 or 70mm??

Mach 1 · 05-08-2002, 10:31 PM

65 MM

Agent_4573 · 05-08-2002, 11:08 PM

Whats stock.. 58mm on a 89lx right?

Mach 1 · 05-08-2002, 11:24 PM

might be 60mm is stock, not sure on the year they switched from 50 something to 60.

eithier way, 65 MM does the job and has superior response than a 70

PKRWUD · 05-09-2002, 09:59 AM

You won't need 24# injectors, either.

Take care,
-Chris

Sonics2042 · 05-09-2002, 10:50 AM

Quote:

Originally posted by Agent_4573
Whats stock.. 58mm on a 89lx right?

Yep...87-93 were 58 mm.

gtsr515 · 05-09-2002, 04:26 PM

First off you don't need an injector upgrade at this point, and to me 24lbs are the worst choice, they are barely better than 19's, they are the most inaccurate of all motorsport injectors, and aftermarket mass airs just don't seem to get along with them, calibrated or not. I would suggest the larger 76mm C&L into a 65mm motorsport throttle body. Even on a bone stock engine, you will see upper rpm gains. Needs to be tuned tho. if you get a maf get an afpr too, they go hand in hand.

In 1986 they used a 58mm throttle body, 87-93 was a 60mm unit.

Agent_4573 · 05-09-2002, 04:29 PM

Thanks for the advicec guys... one more thing though, whats an afpr?

Sonics2042 · 05-09-2002, 04:32 PM

Quote:

Originally posted by gtsr515
In 1986 they used a 58mm throttle body, 87-93 was a 60mm unit.

You sure? I would have almost been willing to bet $$...

Thanks,
DoranW

gtsr515 · 05-09-2002, 09:57 PM

Yep, i'm sure, i've had them both brand new.

A afpr = adjustable fuel pressure regulator.

explicitone · 05-10-2002, 12:03 AM

yes gtsr515.......... he is right the 86 had the 58mm TB and the 87-93 had the 60mm .......... I would go with 65mm TB........

Agent_4573 · 05-10-2002, 12:45 AM

O I C... well then I guess thats what im gonna do.

05-08-2002, 06:25 PM	#1
Agent_4573 Registered Member Join Date: May 2002 Location: New Jersey Posts: 375	Injector Upgrade Question... At the end of this summer I'm planning on putting in a new mass air, new throttle body and 24# injectors... What kinda stuff am i gonna have to do to the computer though? Will i have to get a new chip, or will resetthing the computer be enough? I ask now because I'm starting to buy the stuff now and I'm just gonna hold off and put it all on my car when i have everything. I'm just trrying to figure out how much its gonna cost to do this... __________________ '89 LX 5.0, off-road h pipe, flowmaster muffs, underdrive pulleys, rebuilt WC T-5, King Cobra Clutch, 65mm throttle body, Explorer Upper/GT40 lower, Lakewood Rear Lift Bars. 76mm C&L Mass air w/ inlet pipe, Twisted wedge heads w/ stage 2 port,polish, MAC equal length shorties, Billet AFPR, 255LPH fuel pump, fresh low end w/ 10.5:1 compression. If anyone ever wants to go to Raceway Park in Englishtown New Jersey, give me a shout. RICER HATERS CLUB MEMBER 87! www.ricehatersclub.com

05-08-2002, 06:44 PM	#2
Sonics2042 Registered Member Join Date: Jul 2001 Location: Seattle, WA Posts: 381	I think resetting computer should be enough....But I don't think you need the larger TB. I think most would agree as well. I think you lose HP with larger TB and MAF on near stock applications. Thanks, DoranW __________________ What I have: 1990 Red Mustang 5.0 LX: [BBK X-Pipe]-[MAC Cat-Back Exhaust] [MAC Cold Air Intake]-[BBK Equal Shorties] [3.55 Gears]-[Cobra Intake Manifold (Upper and Lower] [E-303 Cam]-[Granetelli Mass Air Flow Sensor] [Front and rear sway bars]-[New black carpet and seats.] [Adjustable Fuel Regulator]-[T5 Conversion w/ K. Cobra Clutch/Hurst STS] [Cobra Throttle Body]-[130A Alt. Conversion] Thinking about: Aftermarket Heads! Vortech A-Trim

05-08-2002, 07:11 PM	#3
91GTturbo Registered Member Join Date: May 2001 Location: Valdese, NC Posts: 361	You want have to do anything to the computer itself and no chip is needed for what your planning on doing. Sonic is right in one respect, your going to loss a little power due to the 70 mm TB. I would stick with 65 mm as the max size, unless your buying these parts for future plans like a stroker motor or a blower. If thats your plan, your right on track for now. I will say I've seen on more than once occasion cars make over 400 rwhp with a 65 mm TB on them. __________________ 91 single turbo vert

05-08-2002, 08:09 PM	#4
Agent_4573 Registered Member Join Date: May 2002 Location: New Jersey Posts: 375	I'm not planning on a blower, but i am planning on aftermarket heads within the year, and possible a 327 stroker kit, but it depends on how much money i make this summer. If i only go with aftermarket heads and an intake, would you recommend a 65 or 70mm?? __________________ '89 LX 5.0, off-road h pipe, flowmaster muffs, underdrive pulleys, rebuilt WC T-5, King Cobra Clutch, 65mm throttle body, Explorer Upper/GT40 lower, Lakewood Rear Lift Bars. 76mm C&L Mass air w/ inlet pipe, Twisted wedge heads w/ stage 2 port,polish, MAC equal length shorties, Billet AFPR, 255LPH fuel pump, fresh low end w/ 10.5:1 compression. If anyone ever wants to go to Raceway Park in Englishtown New Jersey, give me a shout. RICER HATERS CLUB MEMBER 87! www.ricehatersclub.com

05-08-2002, 10:31 PM	#5
Mach 1 Registered Member Join Date: May 1999 Location: Georgia Posts: 3,866	65 MM __________________ 2002 GT 1993 GT (SOLD) '93 Mustang GT RHC member #142

05-08-2002, 11:08 PM	#6
Agent_4573 Registered Member Join Date: May 2002 Location: New Jersey Posts: 375	Whats stock.. 58mm on a 89lx right? __________________ '89 LX 5.0, off-road h pipe, flowmaster muffs, underdrive pulleys, rebuilt WC T-5, King Cobra Clutch, 65mm throttle body, Explorer Upper/GT40 lower, Lakewood Rear Lift Bars. 76mm C&L Mass air w/ inlet pipe, Twisted wedge heads w/ stage 2 port,polish, MAC equal length shorties, Billet AFPR, 255LPH fuel pump, fresh low end w/ 10.5:1 compression. If anyone ever wants to go to Raceway Park in Englishtown New Jersey, give me a shout. RICER HATERS CLUB MEMBER 87! www.ricehatersclub.com

05-08-2002, 11:24 PM	#7
Mach 1 Registered Member Join Date: May 1999 Location: Georgia Posts: 3,866	might be 60mm is stock, not sure on the year they switched from 50 something to 60. eithier way, 65 MM does the job and has superior response than a 70 __________________ 2002 GT 1993 GT (SOLD) '93 Mustang GT RHC member #142

05-09-2002, 09:59 AM	#8
PKRWUD Junior Member Join Date: Mar 1999 Location: Ventura, California Posts: 8,981	You won't need 24# injectors, either. Take care, -Chris __________________ Webmaster: Rice Haters Club Jim Porter Racing Peckerwoods Pit Stop Support Your Local RED & WHITE!

05-09-2002, 04:26 PM	#10
gtsr515 Registered Member Join Date: Nov 2001 Location: Sunny, Hot, Sebring, Florida Posts: 725	First off you don't need an injector upgrade at this point, and to me 24lbs are the worst choice, they are barely better than 19's, they are the most inaccurate of all motorsport injectors, and aftermarket mass airs just don't seem to get along with them, calibrated or not. I would suggest the larger 76mm C&L into a 65mm motorsport throttle body. Even on a bone stock engine, you will see upper rpm gains. Needs to be tuned tho. if you get a maf get an afpr too, they go hand in hand. In 1986 they used a 58mm throttle body, 87-93 was a 60mm unit. __________________ Remember...2nd place is 1st place for losers!

05-09-2002, 04:29 PM	#11
Agent_4573 Registered Member Join Date: May 2002 Location: New Jersey Posts: 375	Thanks for the advicec guys... one more thing though, whats an afpr? __________________ '89 LX 5.0, off-road h pipe, flowmaster muffs, underdrive pulleys, rebuilt WC T-5, King Cobra Clutch, 65mm throttle body, Explorer Upper/GT40 lower, Lakewood Rear Lift Bars. 76mm C&L Mass air w/ inlet pipe, Twisted wedge heads w/ stage 2 port,polish, MAC equal length shorties, Billet AFPR, 255LPH fuel pump, fresh low end w/ 10.5:1 compression. If anyone ever wants to go to Raceway Park in Englishtown New Jersey, give me a shout. RICER HATERS CLUB MEMBER 87! www.ricehatersclub.com

05-09-2002, 09:57 PM	#13
gtsr515 Registered Member Join Date: Nov 2001 Location: Sunny, Hot, Sebring, Florida Posts: 725	Yep, i'm sure, i've had them both brand new. A afpr = adjustable fuel pressure regulator. __________________ Remember...2nd place is 1st place for losers!

05-10-2002, 12:03 AM	#14
explicitone Registered Member Join Date: Apr 2002 Location: racine ,wi Posts: 691	yes gtsr515.......... he is right the 86 had the 58mm TB and the 87-93 had the 60mm .......... I would go with 65mm TB........ __________________ RUN IT STAIGHT AND RUN IT HARD ________ Novi 2000 60' 1.46 1/4 10.67 mph 126.5 _________

05-10-2002, 12:45 AM	#15
Agent_4573 Registered Member Join Date: May 2002 Location: New Jersey Posts: 375	O I C... well then I guess thats what im gonna do. __________________ '89 LX 5.0, off-road h pipe, flowmaster muffs, underdrive pulleys, rebuilt WC T-5, King Cobra Clutch, 65mm throttle body, Explorer Upper/GT40 lower, Lakewood Rear Lift Bars. 76mm C&L Mass air w/ inlet pipe, Twisted wedge heads w/ stage 2 port,polish, MAC equal length shorties, Billet AFPR, 255LPH fuel pump, fresh low end w/ 10.5:1 compression. If anyone ever wants to go to Raceway Park in Englishtown New Jersey, give me a shout. RICER HATERS CLUB MEMBER 87! www.ricehatersclub.com

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