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Jeep-Short Wheelbase All discussion of short wheelbase Jeeps: CJ, TJ, YJ and JK

 
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post #1 of (permalink) Old 04-12-2002, 11:08 PM Thread Starter
 
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CHEAPEST PERFORMANCE MOD

What is the cheapest performance mod that you can do with the 258?
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post #2 of (permalink) Old 04-12-2002, 11:09 PM
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Re: CHEAPEST PERFORMANCE MOD

TR upgrade. Just do it when its time for your next tune up.
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post #3 of (permalink) Old 04-12-2002, 11:15 PM Thread Starter
 
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Re: CHEAPEST PERFORMANCE MOD

is the TR upgrade going to a bigger cap and rotor and new wire plugs? or is it something else?
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post #4 of (permalink) Old 04-12-2002, 11:30 PM Thread Starter
 
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Re: CHEAPEST PERFORMANCE MOD

I think i have already done the tr upgrade, or at least a variation of it. Is there any other cheap tricks?
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post #5 of (permalink) Old 04-13-2002, 03:30 AM
 
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Re: CHEAPEST PERFORMANCE MOD

do a search for TR upgrade. Maybe a header and air box + k and n filter, a 4.0 head swap is good, but not that cheap. That should be good for you. I found that atleast with my jeep, a 360 V8 swap would cost me less then the above options.

Tony
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post #6 of (permalink) Old 04-13-2002, 01:00 PM Thread Starter
 
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Re: CHEAPEST PERFORMANCE MOD

Tony,
How much did the V8 swap you did cost, I've been thinking about doing one for a long time but always thought it was too expensive

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post #7 of (permalink) Old 04-13-2002, 01:41 PM
 
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Re: CHEAPEST PERFORMANCE MOD

It all depends on what you are starting out with and what you want to end up with. If you have a strong tranny in your jeep and want to swap in a 360, it wont cost that much. I got lucky and bought a jeep with a t18, I didn't even know what I was getting the guy told me it was a t5. I also have a old cherokee with a 360 in it just laying around. So I had the perfect tranny and motor already, which are probably the most expensive parts. If you use an AMC V8 and a jeep tranny you probably wont need any adapters which will save you lots of money.

I have not gotten time to do my swap yet but here is what it should cost.

engine- already have
flywheel- $250
passenger side motor mount- $??? ( I have heard that the 258 mount can be modified to work, so I am going to try this, or a set of MORE bomb proof mounts for $200
new custom exhaust- $250
Other misc parts- (throttle cable, fuel line....) $150


I think if everything works out I should be able to get it done for around $500.

The 258 come from the factory with just over a 100 hp the 360 is well over 200hp! are you going to get that kind of boost from a TR and a set of headers? Also the torque is boosted almost that much.

Good Luck
Tony
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post #8 of (permalink) Old 04-13-2002, 02:13 PM
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Re: CHEAPEST PERFORMANCE MOD

If you've already done the TR upgrade then one thing you'd want to do is decide just what you wnat to do with the Jeep. Then look at sliding around the valve opening and closings by intalling an aftermarket cam. This moves arund the area of in the RPM band that the maximum torque is produced. Me, I like the stock cam... but to each their own.
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