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Old 08-16-2013, 01:18 PM   #1
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2.5l stroker?

i know i know, its still going to be a four banger. but i don't want to have to change everything just for a bigger motor. i found a site where a guy sells kits to build a 2.5 stroker for jeeps. im curious if anyone has done it or have heard about one.

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Old 08-16-2013, 01:30 PM   #2
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You want to spend $1700 on the 4cyl? I did my 6cyl swap for right at a grand.

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Old 08-16-2013, 10:13 PM   #3
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i didnt necessarily say i was going to, its just a thought. lol. im assuming you swapped in a 4.0?
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Old 08-16-2013, 10:53 PM   #4
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Turbo it if you want to keep it. 505 Performance It's not listed but they have it.
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Old 08-16-2013, 11:59 PM   #5
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I had thought about a turbo or supercharger. im curious how they handle offroad conditions though?
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Old 08-20-2013, 08:20 AM   #6
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Yes I did the swap.
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Old 08-20-2013, 01:53 PM   #7
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505 performance has their turbo for like 3k...i'd much rather go through the trouble of a v8 swap than a turbo.
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Old 08-20-2013, 02:17 PM   #8
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505 performance has their turbo for like 3k...i'd much rather go through the trouble of a v8 swap than a turbo.
what's your reasoning? a turbo is a lot of work too, so just curious.
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Old 08-20-2013, 03:18 PM   #9
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what's your reasoning? a turbo is a lot of work too, so just curious.
With a turbo you are maxed. For <$2000 you can do a V8 and have room to grow
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Old 08-20-2013, 04:05 PM   #10
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With a turbo you are maxed. For <$2000 you can do a V8 and have room to grow
This...

Thanks buddy!
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Old 08-21-2013, 07:57 PM   #11
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what about a turbo'd stroker? haha. just throughing ideas out there. a v8 would be cool, but the 2.5 stroker appeals because i wouldnt have to build the rest of my drivetrain accordingly. none of this will happen soon. haha
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Old 08-22-2013, 11:00 AM   #12
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Even with a stroker you would need to upgrade the trans. The AX-5 is a weaker trans that won't hold the built 2.5 its not as bad as the D35 but still. Also by time you spent the $3000 on a turbo stroker you are well past a nice V8 setup to include trans and axles. Remember you can find a truck for sale for $2k that the frame and body are shot but drive line is good.
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Old 08-23-2013, 09:27 PM   #13
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Im already replacing my 35 with an 8.8. just need an sye and driveline to finish. and i've researched the ax15 swap using a dakota 2.5 bellhousing. i'm not really into a v8 because i really dont have the time to wire up everything. this is a daily driver. i dont really want full widths and v8 power.
seems like A LOT of work to go v8.
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Old 08-23-2013, 09:40 PM   #14
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It's also a lot of work to go through a 2.5 stroker as well as throwing a turbo on it and as mentioned...it'll cost you a lot more to do a turbo 2.5 stroker kit than going with a v8 swap
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Old 08-24-2013, 08:23 PM   #15
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okay, im done with this thread.

not to be rude but i don't know how many times i have to say i DONT want a damn v8.
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Old 08-24-2013, 09:37 PM   #16
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Yus! Honestly I wouldn't want a v8 either. Too damned heavy. The point of a jeep is to be lite and agile so it kind of defeats the purpose. If I ever swapped something out I'd go to a diesel. I read something recently about a Volkswagen diesel swap and that'd be awesome. But I think a turbocharged stroker 2.5 would be pretty awesome.
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Old 08-24-2013, 10:06 PM   #17
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Quote:
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With a turbo you are maxed. For <$2000 you can do a V8 and have room to grow
That will also require two stronger axels, a new wiring harness, a new radiator, a new computer, and device to allow your jeep computer and the new computer to work in tandem, new everything.

The stock axels on 4 bangers will NOT handle the torque of any V8 and will snap shafts like toothpicks if you hit the gas much at all.

You will have to also get a new transmission and a TC adaptor and a bell housing adaptor. The list is very long. $2000 is not a drop in the bucket for switching a 4 banger TJ over to a V8.

Further, you will have to cut out and grind down the welded-on motor mount brackets and install the correct ones. (This is the case on the later 2.4L SEs from 2003-2006, and I am only assuming the mount brackets are likewise welded to the frame on the older 2.5L SEs.)

Just pointing this out so this fellow does not mistakenly think this will be either easy or inexpensive.

I am in the process of switching my 2003 SE over to a Chevy 350. It is a massive project that will cost me so much time, money and effort that I am setting aside about 24 months to get it all done by myself, including the block rebuild. It will be a lot of fun, but it will not be anything like $2000 to get a usable vehicle.

Good luck to any who try this!
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Old 09-13-2013, 10:44 PM   #18
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Thank you guys sooo much! finally people side with me.. lol. never thought about a rabbit diesel, that would be pretty interesting. not sure what kinda numbers those put out though..

and as far as v8 goes, i already figured the build time and cost for practically new everything. thats why i was pretty against it. i mean, if i wasnt broke and had another vehicle, i would consider it more. lol. you could just get an older sbc and go carb. hahahaha. gag.
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Old 09-14-2013, 09:47 AM   #19
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This is MURICA! If you aren't trying to go bigger you're weak lol. Some local guys I know keep bugging me to swap out my 6 for a V8 and I honestly cannot see any benefit to doing something like that. Sure, you'd have a lot more power but the 6 is already powerful enough and torque is what you're after on the trail anyway. So what you'd get it a lot more power that is basically useless to you and hell of a lot more weight, work, monkey spent, and headache. The only useful thing you get with a V8 is bragging rights. I think a worked over four will give you far better performance curves without sacrificing the light agility that jeeps are known for. Do it up and let us all know how it goes. Here is the TDI conversion I mentioned HPA Motorsports Inc. VW TDI Powered Jeep
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Old 09-14-2013, 12:32 PM   #20
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i know i know, its still going to be a four banger. but i don't want to have to change everything just for a bigger motor. i found a site where a guy sells kits to build a 2.5 stroker for jeeps. im curious if anyone has done it or have heard about one.
Don't know if any examples. Mr. Lunn, developer/lead engineer of the 2.5, didn't leave much room for the engine to grow. The 2.4 is a different matter, and there is some potential there since it has some factory performance potential from the R/T and SRT side of the house.

I have two TDI builds - My diesel TJ and Diesel TJ MK II - if you want some insight into that craziness.
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Old 09-14-2013, 12:42 PM   #21
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It looks like a pita to do the TDI swap but is it super cool? I can't imagine it wouldn't be.
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Old 09-14-2013, 12:52 PM   #22
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It looks like a pita to do the TDI swap but is it super cool? I can't imagine it wouldn't be.
It's out of the realm of DIY. I'm being honest; however most of what I've trolled here and on the other two forums preclude the average weekend mechanic without benefit of good tools (not the human tool...plenty here and on other forums), a place to work, technical manuals, and dough.
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Old 09-14-2013, 01:04 PM   #23
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What is like to drive?
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Old 09-14-2013, 01:13 PM   #24
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Check my first build thread. It has plenty of torque off the line, and is as peppy as the 4.0. In low, it crawls at idle, and lugs away without you having to throttle.

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