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post #1 of (permalink) Old 02-02-2004, 11:13 AM
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need advice 1995 wrangler 4 cylinder safe rpm spee

I just purchased a 95 Wrangler with a 4 cyl. engine. I will driving on the road more than off, and am concerned about the high rpm's it turns even in 5th gear. At 60mph its almost 3000 rpm's. What is a safe cruising speed for this engine. Thanks for your help.
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post #2 of (permalink) Old 02-02-2004, 12:57 PM
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Re: need advice 1995 wrangler 4 cylinder safe rpm

i cruise 70-75 at 3k rpm all day long

doing 65 it turns about 2.8k rpm

but mines a 97.....what gears and tires does it have ?
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post #3 of (permalink) Old 02-02-2004, 05:06 PM
 
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Re: need advice 1995 wrangler 4 cylinder safe rpm spee

it runs up there because thats where the power is.

The four angry squirrels are not very powerfull.

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post #4 of (permalink) Old 02-04-2004, 06:39 PM
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Re: need advice 1995 wrangler 4 cylinder safe rpm spee

don't know the gears, i just purchased it. thanks for information. anybody else have feedback on safe rpm cruising level. thanks.
post #5 of (permalink) Old 02-05-2004, 12:04 PM
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Re: need advice 1995 wrangler 4 cylinder safe rpm spee

If it is a stock 94 and the axles have never been changed, then you have 4.10:1 R&P. That is what all 4 cyl YJ's came with. And I am guessing it has factory size tires on it. Mine was the same way when I got it, and I felt the same way. I didn't like how high it reved. But it is normal, that is the power band.
My solution for the high reving was to put bigger tires on my jeep. I went from 26.5's up to 30X9.5's and it was WAY better. I felt much more comferdable with the rpm range. However there was a small loss in power. But I felt like the 30 were perfect. To make them fit, I added a leaf to all 4 corners.
Then I went with 33X12.5 in tires. And the ratio still didn't really bother me, but there is a real lack of power with a 4 dinger, and 33's. But I live with it. Next my Jeep will see 4.10:1 R&P, SBC 350 and 37" tires. I can't wait.
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