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Author Topic: Highway speeds  (Read 1874 times)

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Bill M.

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Highway speeds
« on: April 21, 2008, 09:48:18 PM »
I've heard a bit about some people having difficulties maintaining highway speeds. I took my 4 banger on the highway, from Colorado Springs, to Pueblo, and I had no problems running 75+ mph...  :clap:
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Jesse-James

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Re: Highway speeds
« Reply #1 on: April 21, 2008, 10:22:04 PM »
It's all in the gearing.....
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Offline Jeffy

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Re: Highway speeds
« Reply #2 on: April 21, 2008, 10:23:54 PM »
Vehicle height/size comes into play as well.
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Offline Mozman68

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Re: Highway speeds
« Reply #3 on: April 22, 2008, 05:59:27 AM »
Quote from: Bill M. on April 21, 2008, 09:48:18 PM
I've heard a bit about some people having difficulties maintaining highway speeds. I took my 4 banger on the highway, from Colorado Springs, to Pueblo, and I had no problems running 75+ mph...  :clap:

That's the downhill way though, right??

 :blbl:
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Offline jfrabat

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Re: Highway speeds
« Reply #4 on: April 22, 2008, 07:30:36 AM »
Quote from: Bill M. on April 21, 2008, 09:48:18 PM
I've heard a bit about some people having difficulties maintaining highway speeds. I took my 4 banger on the highway, from Colorado Springs, to Pueblo, and I had no problems running 75+ mph...  :clap:

Is yours lifted with bigger tires?  And was there any headwinds?  I run 31" on stock 4.10 gears, and if there is no strong headwinds, I can go 70mph no problem; but put a headwind of more than 10mph, and it is a bit of a different story...  Then I have to drop to 4th to keep the speed above 60mph (I can still do 70 if I want, though).

Felipe
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Bill M.

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Re: Highway speeds
« Reply #5 on: April 22, 2008, 08:24:24 AM »
Shes got a 2 inch BB and 31's. Granted its not super modded, its not stock lol. It was rather hilly all the way... but then again... I lost 5th gear....I only dropped it into 5th when I saw it was flat ahead..haha..  :koolaid:
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Mr_Random

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Re: Highway speeds
« Reply #6 on: April 22, 2008, 05:47:52 PM »
My XJ has a 16 HP (danged TBI) or more loss on most of you guys... I only have a lift right now... but I hope I can keep close to the same speeds I have now with 31's... I usually can get to 90MPH, but that's just scary!

... Of course, Xj's are something like 500lbs or more lighter and a bit less of a brick shape...
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Offline oldjeep

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Re: Highway speeds
« Reply #7 on: April 23, 2008, 07:58:30 AM »
I've got no problems running 65mph on the highway with 35" tires and 4.10's
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Chuck P
The clowns'? Oh, yeah, the clowns. We fight them too — entire armies, spilling out of Volkswagons. We do our best to fight them off, but they keep sending 'em in!
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Offline jfrabat

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Re: Highway speeds
« Reply #8 on: April 23, 2008, 08:01:20 AM »
Quote from: oldjeep on April 23, 2008, 07:58:30 AM
I've got no problems running 65mph on the highway with 35" tires and 4.10's

How bad is the 4-banger with 4.10 and 35's?  I imagine you kind of forgot that your tranny is a 5-speed and not a 4-speed, right?  (or you have an auto?)  I am planning on going to 33's and keeping the 4.10 for now...  But later will go to 4.88's.
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'94 YJ 2.5L with 4" RE lift, Superwinch EPi9.0, FoMoCo e-Fan, SD30 and SD35 w/ARB-5.13, 165A alt., 33" BFG KM2 on 15" AR wheels, Sony sound system, Pavement Ends Hardtop, Hydroboost

Offline oldjeep

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Re: Highway speeds
« Reply #9 on: April 23, 2008, 08:20:50 AM »
Quote from: jfrabat on April 23, 2008, 08:01:20 AM
How bad is the 4-banger with 4.10 and 35's?  I imagine you kind of forgot that your tranny is a 5-speed and not a 4-speed, right?  (or you have an auto?)  I am planning on going to 33's and keeping the 4.10 for now...  But later will go to 4.88's.

It's fine, you do have to keep the revs up especially up hill.   I've got an AW4 auto (4 speed overdrive)  and at 65 I'm not in overdrive ;)
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Chuck P
The clowns'? Oh, yeah, the clowns. We fight them too — entire armies, spilling out of Volkswagons. We do our best to fight them off, but they keep sending 'em in!
94 YJ - gone
98 ZJ - sons truck
97 TJ - daughters project

www.oldjeep.com

Offline stan98tj

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Re: Highway speeds
« Reply #10 on: April 23, 2008, 02:57:40 PM »
my 4 banger has the auto tranny...yea i know..say what u want. ive noticed she hates hills and ill lose speed on hills-even gentle upgrades on the highway-and i have to sometimes floor it to get her to shift...otherwise ill drop down to 45mph lol.  with the new engine im not having trouble maintaining highway speeds anymore..but i do wish i had a few more horses under the hood...anything to give me a bit more oomph anything to counter the "hill" problem she sometimes has.
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Offline Bounty Hunter

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Re: Highway speeds
« Reply #11 on: April 27, 2008, 08:05:26 PM »
75+, and hills aren't an issue anymore.  I can take many grades in 5th.

This with 36" TSL's, 5spd, and 5.38 axle gears.
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