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Injectors for 300 ish HP 99-04 ?
Posted: April 17th, 2024, 5:38 pm
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?
Re: Injectors for 300 ish HP 99-04 ?
Posted: April 18th, 2024, 12:06 am
by Cheromaniac
What are the build specs of your stroker?
Do you have other external bolt on performance upgrades?
Re: Injectors for 300 ish HP 99-04 ?
Posted: April 18th, 2024, 7:37 am
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
Re: Injectors for 300 ish HP 99-04 ?
Posted: April 19th, 2024, 3:42 am
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