Fuel Injected Compatible Cams?
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- Posts: 8
- Joined: April 30th, 2017, 7:05 pm
- Stroker Displacement: 4.0
- Vehicle Year: 2003
- Vehicle Make: Jeep
- Vehicle Model: WJ
Fuel Injected Compatible Cams?
hey guys this is basically my first post so ill do a 2-for-1 special intro/question post.
about 2 weeks ago I lost a piston skirt on my 03 WJ 4.0 with 160k. had a 75 wet shot on it and not 100% sure if that contributed to it being that the skirt cracked and not the head of the piston (or any of the pistons). anyway I replaced the motor with one with 100k on it, and now have a 4.0 long block, 0331 tupy head, and a good base for a stroker build sitting in my garage. I pulled the pistons and everything and the cylinder walls aren't gouged, even the cylinder that lost the skirt. so I'm considering doing a 4.5L if the shop can re hone my walls, or 4.7 if they can't hone and crosshatch enough while keeping close to the stock bore tolerance.
my goals for the build is around 250 HP and 280-300 Tq, possibly nitrous safe(being that I still have the kit sitting in the garage ) an something that will last while being revved up frequently. (I do a lot of highway driving and merging, and also enjoy a good foot to the floor). also would like a full roller valvetrain setup.
my question getting back to the title of the post is that every camshaft I find for the 4.0/4.2 is saying that they're not for fuel injected motors/not computer controlled compatible. the motor is going back in my 03 WJ so it can't be carb'd. any suggestions on cam brands (other than comp cams) would be appreciated.
Pictures showing the piston, cylinder wall for that piston, and the jeep its going in. 33x12"s on 2.5" lift
about 2 weeks ago I lost a piston skirt on my 03 WJ 4.0 with 160k. had a 75 wet shot on it and not 100% sure if that contributed to it being that the skirt cracked and not the head of the piston (or any of the pistons). anyway I replaced the motor with one with 100k on it, and now have a 4.0 long block, 0331 tupy head, and a good base for a stroker build sitting in my garage. I pulled the pistons and everything and the cylinder walls aren't gouged, even the cylinder that lost the skirt. so I'm considering doing a 4.5L if the shop can re hone my walls, or 4.7 if they can't hone and crosshatch enough while keeping close to the stock bore tolerance.
my goals for the build is around 250 HP and 280-300 Tq, possibly nitrous safe(being that I still have the kit sitting in the garage ) an something that will last while being revved up frequently. (I do a lot of highway driving and merging, and also enjoy a good foot to the floor). also would like a full roller valvetrain setup.
my question getting back to the title of the post is that every camshaft I find for the 4.0/4.2 is saying that they're not for fuel injected motors/not computer controlled compatible. the motor is going back in my 03 WJ so it can't be carb'd. any suggestions on cam brands (other than comp cams) would be appreciated.
Pictures showing the piston, cylinder wall for that piston, and the jeep its going in. 33x12"s on 2.5" lift
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- SkylinesSuck
- Donator
- Posts: 545
- Joined: February 14th, 2009, 11:11 pm
- Stroker Displacement: 4.6L
- Vehicle Year: 1998
- Vehicle Make: Jeep
- Vehicle Model: Wrangler
- Location: Northern VA
Re: Fuel Injected Compatible Cams?
Welcome! Great looking rig. Just curious, where did you use the giggle gas? Did you run it at the track? If so, what kind of times did you run?
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- Posts: 8
- Joined: April 30th, 2017, 7:05 pm
- Stroker Displacement: 4.0
- Vehicle Year: 2003
- Vehicle Make: Jeep
- Vehicle Model: WJ
Re: Fuel Injected Compatible Cams?
I used it in "Mexico". really only threw it on my truck because someone said "you won't". the kit was only around 500 for the Nitrous Express Proton Plus kit (perfect for FI motors), and I also did it because I thought it would be cool to do something different. truck moved in 1st and 2nd gear
I live on Long Island (New York) and after years of fighting were finally persuading the local officials to set up zoning for a drag strip. I was challenging another local to a race (has a turbo'd XJ on 37s) but unfortunately my motor didn't last that long
I live on Long Island (New York) and after years of fighting were finally persuading the local officials to set up zoning for a drag strip. I was challenging another local to a race (has a turbo'd XJ on 37s) but unfortunately my motor didn't last that long
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- Strong Poster
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- Joined: August 15th, 2009, 1:27 am
- Stroker Displacement: 4.7
- Vehicle Year: 2000
- Vehicle Make: Jeep
- Vehicle Model: Cherokee
Re: Fuel Injected Compatible Cams?
You're a brave man to put nitrous to a factory hypereutectic piston.
A replacement forged pistons should be on your priority list as I'm sure you know now.
If you shoot me an email actually I have a couple of options for you if you're wanting a piston to run on nitrous.
I have a Comp cam 68-235-4 on a 114°lobe LSA that would be a good choice.
Russ
Bishop-Buehl Racing Engines
531 N. Lyall Avenue
West Covina, California 91790
(626) 967-1000
Email/PayPal: [email protected]
A replacement forged pistons should be on your priority list as I'm sure you know now.
If you shoot me an email actually I have a couple of options for you if you're wanting a piston to run on nitrous.
I have a Comp cam 68-235-4 on a 114°lobe LSA that would be a good choice.
Russ
Bishop-Buehl Racing Engines
531 N. Lyall Avenue
West Covina, California 91790
(626) 967-1000
Email/PayPal: [email protected]
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Re: Fuel Injected Compatible Cams?
Fantastic picture!
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- Posts: 8
- Joined: April 30th, 2017, 7:05 pm
- Stroker Displacement: 4.0
- Vehicle Year: 2003
- Vehicle Make: Jeep
- Vehicle Model: WJ
Re: Fuel Injected Compatible Cams?
Thanks! i have a few new ones that show it has a surprising amount of suspension travel for 2.5" of lift
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Re: Fuel Injected Compatible Cams?
Amazing car, Johnny!JohnnyBertone wrote: ↑June 19th, 2017, 7:28 am Thanks! i have a few new ones that show it has a surprising amount of suspension travel for 2.5" of lift 18342038_1491113830900933_4845512278894710319_n.jpg
18275142_1490968934248756_2676468081452029488_n.jpg
If you want to find more on Crazy Bulk
- darkcorp
- I made it to triple digits!
- Posts: 101
- Joined: November 14th, 2013, 12:21 am
- Stroker Displacement: 4.6L
- Vehicle Year: 1999
- Vehicle Make: JEEP
- Vehicle Model: GCh 4.0
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- Contact:
Re: Fuel Injected Compatible Cams?
Hi guys!
Is there any chance to pick up a mild performance cam on new style timing chain keeping stock valve springs etc? I mean WJ 1999. HOWARDS CAMS 320111-12? Or it's better to go with an old style non-thrust plate cam f.ex. Comp 68-201-4?
Is there any chance to pick up a mild performance cam on new style timing chain keeping stock valve springs etc? I mean WJ 1999. HOWARDS CAMS 320111-12? Or it's better to go with an old style non-thrust plate cam f.ex. Comp 68-201-4?
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Re: Fuel Injected Compatible Cams?
Hi Albert,
Comp cams will on a custom order basis grind any cam profile on a late thrust plate style cam.
I make a cam bolt with a pressed in poly insert that acts as a thrust button for those who want to convert
Pros and Cons.
• Pro
It will bolt in with no other changes needed to be made.
• Con
There’s a slight up charge cost because it’s a custom grind.
Because nobody makes an upgraded double roller timing set, your limited to the factory style single gear.
Comp cams will on a custom order basis grind any cam profile on a late thrust plate style cam.
I make a cam bolt with a pressed in poly insert that acts as a thrust button for those who want to convert
Pros and Cons.
• Pro
It will bolt in with no other changes needed to be made.
• Con
There’s a slight up charge cost because it’s a custom grind.
Because nobody makes an upgraded double roller timing set, your limited to the factory style single gear.
- darkcorp
- I made it to triple digits!
- Posts: 101
- Joined: November 14th, 2013, 12:21 am
- Stroker Displacement: 4.6L
- Vehicle Year: 1999
- Vehicle Make: JEEP
- Vehicle Model: GCh 4.0
- Location: Kazan/Russia
- Contact:
Re: Fuel Injected Compatible Cams?
Thanks, great!
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