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SVO 19# Injectors (I figured this needs it's own topic)

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Old 09-12-2004 | 12:34 PM
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Scottlb9's Avatar
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From: NYC
Car: 1991 Formula
Engine: 5.0 TPI
Transmission: T-5
SVO 19# Injectors (I figured this needs it's own topic)

I am in the market of replacing my 108,000 mile injectors with new ones.

My confusion is this; www.fiveomotorsport.com says that they don't sell 19lb injectors for a 91 305 TPI, only 22lb.

Bruce Holt (the owner) confirmed this in an e-mail reply,

"We sell only the 22lb injectors for the 91 305 TPI engines."

Anybody have any comments?
Old 09-12-2004 | 05:19 PM
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From: Newark, Ca, USA
Car: 02 ws-6
Engine: 5.7 liter
Transmission: t56
i also went with bruce at fiveomotorsport and they also told me 89-92 305 have 22lb injectors. I bought their ford 19lb injectors from them and they work fine with my lb9. The model number for the injectors are FOTE D5B. I still don't know if my injectors are svo injectors
Old 09-12-2004 | 10:56 PM
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From: Whitehouse, Ohio
Car: 1987 IROCZ
Engine: 305 TPI
Transmission: 700r4
I have SVO 19lbs injectors also, work great. I also monitor fuel pressure and fuel/air inside the car and the maintains great fuel/air ratio acroos the board. BTW, I have also replaced my stock chip with a ThermoMaster by HyperTech that helped lots.
Old 09-12-2004 | 11:42 PM
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Originally posted by Red Devil
Fuggers.

I screwed the correction.

Ford rates at 39.1 GM at 43.5 so if I did the math right...
Ford rating
19
24
GM rating
21.14
26.7

Roughly as I'm just playing with the math.

And the FOMOCO order no. for the 19 lb.:FMS-M9593C302
From a good discussion from:
https://www.thirdgen.org/techbb2/sho...+AND+injectors

Now the only variable in this is I found another reference of 37 lbs. for the Ford rating (meaning my numbers are on the low side for flow). My numbers should still be close enough.
Old 09-12-2004 | 11:43 PM
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That would be why he doesn't sell 19 lb GM (rated) injectors.
Old 09-13-2004 | 12:40 AM
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From: NYC
Car: 1991 Formula
Engine: 5.0 TPI
Transmission: T-5


On fiveomotorsport, the bosch/ford 0280150556-D5B 19lb injectors state that they are for 1985-88 TPI 305 and that the 0280150561-D9B 22lb injector is for the 1989-92 Camaro TPI 305.

According to your math, the DB9 would then be around the 24lb area.

See my confusion?
Old 09-13-2004 | 08:37 AM
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From: Whitehouse, Ohio
Car: 1987 IROCZ
Engine: 305 TPI
Transmission: 700r4
Scott
Your question has been answered several times, 305 TPI=19lbs
The confusion is coming from threads referencing SBC 350's I believe.
Old 09-14-2004 | 07:59 AM
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Car: 1991 Formula
Engine: 5.0 TPI
Transmission: T-5
Scott - Only 1985-88 305ci engines used the 19lb injectors - all the later models went to a 22lb injector.
We would never sell a 19lb injector for your 91 - the resulting lean condition could cause serious damage from over heating.
This is what I mean, this information is not cool.
Old 09-14-2004 | 10:47 AM
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From: Whitehouse, Ohio
Car: 1987 IROCZ
Engine: 305 TPI
Transmission: 700r4
Scott
Call your local dealer and ask want the stock replacement injector is for your car, and go from there.
Old 09-14-2004 | 09:00 PM
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From: Newark, Ca, USA
Car: 02 ws-6
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Transmission: t56
are svo injector different then regular ford motorsport injectors?
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