Re: Good Job!

[farna@xxxxxxx]

On September 19, 2005 andrew hay wrote:

> btw the amc 2.5 uses the same mounts as the straight six and with the
> right bell would bolt up to the spirit sr4/t4/t5.

The "right bell" being an late 80s Camaro or S-10 bell -- and T-5 to go with it. The AMC 2.5L uses the small GM four/V-6 bell pattern, so the 2.8L bell and trans fits. 

> 
> gremlin/spirit fours ran 3.54s iirc.  you could probably run 3.31s if
> you pick your cam and maybe even 3.08s at the sacrifice of a lot of
> performance.  you'd have to swap cams though as jeep went the other
> way, emphasizing mid/top power to make that little four move a heavy
> boxy wrangler.  the 4.10s show it, even with a 3.93 1st.  sixes could
> have 3.07s, in cherokees at least.
> 

I wouldn't drop below a 3.54 personally. The 3.07 isn't enough gear for the Cherokee with a five speed really. It needs just a little more -- 3.23 or 3.31 would be about right. I had a Comanche 4.0L/5 speed combo. Mileage would have improved with a lower gear, I think. I know I get slightly better with 3.55 gears than I did with 3.07.I really think 3.31 would do just a bit better at a loss of take-off, and I might switch to 3.31 gears later. For now 1-2 mpg isn't worth the cost of changing gears, and the surge of power feels nice. 3-4 mpg was worth the effort to go down in gearing, especially since the car felt a tad sluggish as well.

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