Fuel Injected Compatible Cams?

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JohnnyBertone
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?

Post by JohnnyBertone »

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 :hrhr: ) 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 :mrgreen:
18221766_1484355018243481_3980949698976423979_n.jpg
18194239_1484355024910147_5927996182684854949_n.jpg
18194005_1482139881798328_451179040075802586_n.jpg
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SkylinesSuck
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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?

Post by SkylinesSuck »

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?
JohnnyBertone
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?

Post by JohnnyBertone »

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 :mrgreen:

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 :doh:
Russ Pottenger
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Vehicle Model: Cherokee

Re: Fuel Injected Compatible Cams?

Post by Russ Pottenger »

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
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DrewFaul
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Joined: May 25th, 2017, 3:14 am

Re: Fuel Injected Compatible Cams?

Post by DrewFaul »

Image

Fantastic picture!
JohnnyBertone
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?

Post by JohnnyBertone »

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
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jumilitu
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Re: Fuel Injected Compatible Cams?

Post by jumilitu »

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
Amazing car, Johnny!
If you want to find more on Crazy Bulk
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darkcorp
I made it to triple digits!
I made it to triple digits!
Posts: 101
Joined: November 14th, 2013, 12:21 am
Stroker Displacement: 4.6L
Vehicle Year: 1999
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Vehicle Model: GCh 4.0
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Re: Fuel Injected Compatible Cams?

Post by darkcorp »

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?
Russ Pottenger
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Re: Fuel Injected Compatible Cams?

Post by Russ Pottenger »

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.
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darkcorp
I made it to triple digits!
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?

Post by darkcorp »

Thanks, great!
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