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Newest FNG with a 4.5

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WyoCherokee
Posts: 2
Joined: January 30th, 2020, 11:52 am
Stroker Displacement: 4.5
Vehicle Year: 1990
Vehicle Make: Jeep
Vehicle Model: Comanche

Newest FNG with a 4.5

Post by WyoCherokee » January 30th, 2020, 11:59 am

Howdy folks. After lots of Lurking i finally created an account. Very active over on CF and CC.
Heres my build threads.
https://www.cherokeeforum.com/f46/proje ... er-231553/
https://comancheclub.com/topic/51825-pr ... ail-build/

After finding a broken piston skirt from an oil pump bolt, I decided to build a 4.5 using the guts from a friends old 258 YJ.

Currently running, but fighting a super lean issue. havent swapped in 24lb injectors yet, so hoping thats the issue. I will add soem more detail on the engine alter. but heres some teasers.
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SkylinesSuck
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Posts: 514
Joined: February 14th, 2009, 11:11 pm
Stroker Displacement: 4.6L
Vehicle Year: 1998
Vehicle Make: Jeep
Vehicle Model: Wrangler
Location: Northern VA

Re: Newest FNG with a 4.5

Post by SkylinesSuck » January 30th, 2020, 3:11 pm

Welcome! What size injectors are you currently using? If stock, I found your problem ;-)

WyoCherokee
Posts: 2
Joined: January 30th, 2020, 11:52 am
Stroker Displacement: 4.5
Vehicle Year: 1990
Vehicle Make: Jeep
Vehicle Model: Comanche

Re: Newest FNG with a 4.5

Post by WyoCherokee » February 5th, 2020, 1:32 pm

SkylinesSuck wrote:
January 30th, 2020, 3:11 pm
Welcome! What size injectors are you currently using? If stock, I found your problem ;-)
Yes they are currently the stock 19lb injectors. In the process of getting the engine back in the truck, i was also selling my house and moving, so i just had to get it running to get it on the trailer and into my new house! I am thinking i will try these if i can find them FMS-M9593-A302. If not ill try the zj injectors 53030262. i have been researching and found though, that folks have used the 21lb 91-95 injectors at my renix 39psi. so im not sure what to use first. Go for the cheaper easier 21's and hope they are rich enough, or go for the 24lb Zj or Ford injectors and Hope they aren't to much. Allot of conflicting info out there.

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