Injector questions
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Junior User
Joined: Jan 2005
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From: Victoria Canada
Injector questions
I have an '86 bronco 4x4 with a 351W efi. (not original, speed density)
I have nearly finished rebuilding the 351 and I am considering new injectors. Well I am going to get new ones but what options do I have?
The engine was balanced and has a comp cam (the speed density one that everyone gets. I forget the number right now.) It is also running a new set of dynamax headers.
What about increasing fuel pressure or using high performance injectors?
Any ideas out there?
I have nearly finished rebuilding the 351 and I am considering new injectors. Well I am going to get new ones but what options do I have?
The engine was balanced and has a comp cam (the speed density one that everyone gets. I forget the number right now.) It is also running a new set of dynamax headers.
What about increasing fuel pressure or using high performance injectors?
Any ideas out there?
Thread Starter
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Junior User
Joined: Jan 2005
Posts: 68
Likes: 0
From: Victoria Canada
Would spending extra money on performance injectors be money well spent? or does the speed density computer (and pressure limit) make this a moot point?
And thanks for the previous advice.
And thanks for the previous advice.
Moderator
Joined: Jun 2003
Posts: 3,547
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From: Calhoun GA
You can keep the stock 19's, even with aftermarket heads and a cam. Tuning options are limited for speed density, but if you have a local programmer that can work with speed density, then that'll be your best option.
Otherwise, an adjustable fuel pressure regulator (FPR), timing light and borrowed wideband (if you don't have your own) is another option for tuning.
The ECU will compensate some (with the stock injectors), but WOT is where you'll see the difference though...this is where some type of tuning is needed with speed density.
Otherwise, an adjustable fuel pressure regulator (FPR), timing light and borrowed wideband (if you don't have your own) is another option for tuning.
The ECU will compensate some (with the stock injectors), but WOT is where you'll see the difference though...this is where some type of tuning is needed with speed density.
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