Do I absolutely need bigger injectors??

Blaster · 02-02-2005, 11:14 AM

I will start putting my engine back together next week and I went way over budget putting my new 331 together. I have a 70mm t-body, ported 6037 edelbrocks and typhoon intake (ported lower), and 1 5/8 shortys. Can I get away with using my stock injectors for this coming season with a 255lph fuel pump and a adjustable regulator. I don't have any money left for a new mass air meter and 24 injectors. Should I risk running my engine lean or can I run this way until I save up for the injectors and meter (probably used to save $$$). I need a solution because my visa is on the verge of melting from over use.

tireburner163 · 02-02-2005, 11:44 AM

If you really don't have the cash then it CAN be done. Just turn the fuel pressure up.

But really for about another $200 bucks you can get a meter and injectors if you scrouge around ebay and the classifeds here and on other mustang boards.

Dark_5.0 · 02-02-2005, 01:17 PM

You will have to run about 65-70 psi on the stockers. Set the fuel pressure and then go make a 1/4 mile run and pull the plugs and see how they look.

fiveohpatrol · 02-03-2005, 05:47 PM

what's the point in putting all that money into the rest of the combo and then skimping on the fuel side?

put 30's in it, and don't look back

FordMainiac · 02-11-2005, 07:53 PM

well like they said you can make it but i advise not to go to a track untill you get injectors and a meter. Likely to blow the motor.

Unit 5302 · 02-12-2005, 05:48 PM

You're going to burn the engine down with 19lb/hr injectors on a 331 stroker with HCI. Especially with old injectors that have over 100k on them.

02-02-2005, 11:14 AM	#1
Blaster Registered Member Join Date: Mar 1999 Location: Canada Posts: 66	Do I absolutely need bigger injectors?? I will start putting my engine back together next week and I went way over budget putting my new 331 together. I have a 70mm t-body, ported 6037 edelbrocks and typhoon intake (ported lower), and 1 5/8 shortys. Can I get away with using my stock injectors for this coming season with a 255lph fuel pump and a adjustable regulator. I don't have any money left for a new mass air meter and 24 injectors. Should I risk running my engine lean or can I run this way until I save up for the injectors and meter (probably used to save $$$). I need a solution because my visa is on the verge of melting from over use.

02-02-2005, 11:44 AM	#2
tireburner163 It's a lot like a race car Join Date: Aug 2000 Location: Meridian, MS Posts: 4,130	Re: Do I absolutely need bigger injectors?? If you really don't have the cash then it CAN be done. Just turn the fuel pressure up. But really for about another $200 bucks you can get a meter and injectors if you scrouge around ebay and the classifeds here and on other mustang boards. __________________ 1987 Buick T-type 1998 HD Electra Elide

02-02-2005, 01:17 PM	#3
Dark_5.0 Registered Member Join Date: Apr 2001 Location: Staging lane Posts: 4,337	Re: Do I absolutely need bigger injectors?? You will have to run about 65-70 psi on the stockers. Set the fuel pressure and then go make a 1/4 mile run and pull the plugs and see how they look. __________________ 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

02-03-2005, 05:47 PM	#4
fiveohpatrol I'd rather be basketweaving Join Date: Feb 2000 Location: Indianapolis Posts: 2,551	Re: Do I absolutely need bigger injectors?? what's the point in putting all that money into the rest of the combo and then skimping on the fuel side? put 30's in it, and don't look back __________________ NMRA O/C 9516 NA pumpgas stickshift 347 10.65@125.6, 6.73@100, 1.41 60ft

02-11-2005, 07:53 PM	#5
FordMainiac Registered Member Join Date: Jan 2005 Posts: 8	Re: Do I absolutely need bigger injectors?? well like they said you can make it but i advise not to go to a track untill you get injectors and a meter. Likely to blow the motor.

02-12-2005, 05:48 PM	#6
Unit 5302 Registered Member Join Date: May 1999 Posts: 5,246	Re: Do I absolutely need bigger injectors?? You're going to burn the engine down with 19lb/hr injectors on a 331 stroker with HCI. Especially with old injectors that have over 100k on them.

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