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cotharyus
Dodge Dakota
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3/06/2002
10:24:34

Subject: 2.5L TB info
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So far I've heard two things that can be done with the TB on a 2.5 - KRC does some custom porting work, and I've seen a couple of mentions of using a jeep 4.0 TB. Can anyone discuss in depth the pros and cons of going each way power and effeciency wise? Does anyone have either solution in place? How's it work?



Ripper_242
Dodge Dakota
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3/08/2002
00:03:01

RE: 2.5L TB info
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cotharyus- Check this site out

http://www.sportruck.com/howto/howto.htm

It helped me in my decisions on what mods to do on my truck.





Cotharyus
Dodge Dakota
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3/08/2002
08:57:47

RE: 2.5L TB info
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Thanks ripper_242 - It's a good looking site, unfortunately, it doesn't deal alot with my current issue, which is which route to take on the TB upgrade.



2pnt5ltrluv
GenIII
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3/08/2002
13:02:09

RE: 2.5L TB info
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Coth- Not sure if you have been to this site yet:

http://homepage.mac.com/jyokomura/tech/throttlebody01/

But it sealed the deal for me. I am putting in my t-body next week.

Four- Banger with:
Ran outta space to list mods...hehe Check profile.

Cotharyus
Dodge Dakota
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3/08/2002
14:00:34

RE: 2.5L TB info
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2pnt5ltrluv - I looked at that - notice I'm asking about it now:) - If I understand correctly, they're putting a stock 4.0 jeep TB on a 2.5L correct? I'm wondering what the advantages to that are vs using a bored TB from KRC - obviously the cost is going to be higher on the 4.0 TB - KRC will make your TB, ship it to you, you swap the old with the new, send back the old, and get your core deposite back - I think it ends up being about $200 - I also haven't seen anything firm on horse power. Both appear to have a reasonable gain, but then the only info I have from either is having talked to KRC and having read the web page you reference.



2pnt5ltrluv
GenIII
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3/08/2002
14:25:44

RE: 2.5L TB info
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Well, from what I could gather, the bored 2.5L t-body from Turbo City or KRC would probably be close to the same specs as a stock 4.0L t-body. If you went to a bored 4.0L t-body, I would imagine that the gains would be in the 10 hp range. TurboCity states that the Ported 2.5L T-body gives a 4-6 hp gain with stock engine, and the 4.0L would give a 6-8hp gain with stock engine. Based on this, I think that adding the stock 4.0L to the 2.5L engine will yield about 4-6 hp. Now when added to a bunch of different mods, a 4-6hp increase can be significant especially when adding an intake kit, exhaust, etc. TurboCity also states that if you change the t-body, exhaust and intake you should yield a 30-33 hp increase.

http://www.turbocity.com/JeepStagePowerKits.htm

Kris

Four- Banger with:
Ran outta space to list mods...hehe Check profile.

Ripper_242
Dodge Dakota
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3/09/2002
01:51:38

RE: 2.5L TB info
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Jeep 4.0 TB would be a better way to go in my opinion. It cost less and will perform equal or better than a custom one at KRC. The only disadvantage with the Jeep 4.0 TB is trying to find one in your area.



2pnt5ltrluv
GenIII
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3/09/2002
11:36:16

RE: 2.5L TB info
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yeah, it was tough finding one where I live, but I was lucky enough to find one on ebay for $37.

Kris

Four- Banger with:
Ran outta space to list mods...hehe Check profile.

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