Injectors for 300 ish HP 99-04 ?

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Drooque
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Injectors for 300 ish HP 99-04 ?

Post by Drooque »

Looking at the more recent, last couple years, posts in the forum, I see two different recommendations for Injectors for the same applications

Bosch 0280155784 23 lb/hr
or
Bosch 0280158051 34.5 lb/h (62647) (with adapter)

23 vs 34.5 seem quite different, so what am I to think?
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Cheromaniac
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Stroker Displacement: 4563cc
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Vehicle Model: Cherokee
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Re: Injectors for 300 ish HP 99-04 ?

Post by Cheromaniac »

What are the build specs of your stroker?
Do you have other external bolt on performance upgrades?
1992 XJ 4.6 I6 - 5MT - Stroker build-up, Stroker "recipes" Sold
1995 Mustang GT - 4AT - Modded Sold
2006 Mustang GT - 5MT - Modded Midlife Crisis Car :mrgreen:
Drooque
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Re: Injectors for 300 ish HP 99-04 ?

Post by Drooque »

The build I personally would be interested in would be almost identical to the 'medium-buck' recipe, in a 2000 Grand Cherokee. For the sake of knowledge, I am more interested in the general 300HP case, than a specific build. So let's say the exact 'medium-buck' recipe, 99-2004, at sea level, proper tune, adequate exhaust, everything working properly, properly built (example: widening the intake opening to match the TB).
What would be the correct injector?

For myself I have built a spreadsheet of parts complete with source and cost. My 4.0l runs strong but has a rod knock. I am waiting to hear back about it's condition, as well as that of rods and 258 crank, before I make final decision on a couple components, primarily pistons. As soon as I do, I will start a new thread about my build.

Thank You
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Cheromaniac
I live here
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Posts: 3190
Joined: March 8th, 2008, 12:58 pm
Stroker Displacement: 4563cc
Vehicle Year: 1992
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Vehicle Model: Cherokee
Location: Cyprus
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Re: Injectors for 300 ish HP 99-04 ?

Post by Cheromaniac »

4.7L medium-buck stroker

Jeep 4.2L 3.895" stroke crank
Jeep 4.0L 6.125" rods
Custom forged +0.060" bore pistons, compression height 1.380", dish volume 15cc
10.2:1 CR
CompCams 68-235-4 210/218 degree camshaft
Russ Pottenger ported Edelbrock 60cc aluminum cylinder head
Mopar/Victor 0.043" head gasket
0.043" quench height
Flometrics F&B 68mm billet TB
Bosch 0280155784 injectors for '96-'04 engines
290hp @ 5100rpm, 340lbft @ 3700rpm
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