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GoFastRacerMale Offline
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Post Icon Posted: Nov. 23 2024,6:51 am Post # 7276 see this member send this member a private message  quote this post in reply

My POS Burb gets 17-18 at 75 1950rpm with the converter locked up, of course that's under ideal weather conditions too.
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stingrayMale Offline
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Post Icon Posted: Nov. 23 2024,8:57 pm Post # 7277 see this member send this member a private message  quote this post in reply

My Dmax the difference from 80 to 85 is about 2.5 MPG which is huge.


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GoFastRacerMale Offline
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Post Icon Posted: Nov. 28 2024,12:30 pm Post # 7278 see this member send this member a private message  quote this post in reply

Wow, that is a lot.
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BigDogMale Offline

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'99 Searay 210 Sundeck
Post Icon Posted: Nov. 29 2024,7:52 am Post # 7279 see this member send this member a private message  quote this post in reply

Circle K around the corner has been at 3.29.


I need to check the Colorado one of these days. I have looked at getting an overdrive unit for the HD to get the RPM down and see what it does. But they are REALY proud of them.
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Post Icon Posted: Nov. 30 2024,7:58 am Post # 7280 see this member send this member a private message  quote this post in reply

Still $2.85 here.

What engine do you have?, you can pick up 700R4's fairly cheap but they are spendy to rebuild, but I noticed that most shops are crazy on their prices even for a basic rebuilt, and don't forget if you got a 4L60E you'd have to get a stand alone controller(crazy expensive) or convert it to manual.
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BigDogMale Offline

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Post Icon Posted: Dec. 01 2024,3:01 pm Post # 7281 see this member send this member a private message  quote this post in reply

HD has the 6.0 with the 4L80E. 4.10's in the rear. I went to a 265/75 - 16 that seemed to help just a LITTLE bit from the short a$$ 245's it came with.
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GoFastRacerMale Offline
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Post Icon Posted: Dec. 02 2024,7:58 am Post # 7282 see this member send this member a private message  quote this post in reply

If you have a 4L80E in it, you already have overdrive but those gears are killing you big time, the new tires are only an inch difference, hardly noticeable, need to drop down to a 3.42 that would let you run 75mph at just 2000rpm with the 32in tire, little lower if you lock up the converter, with the 4.10's you're looking at 2500 or so, quite a difference.
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BigDogMale Offline

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Post Icon Posted: Dec. 03 2024,4:24 pm Post # 7283 see this member send this member a private message  quote this post in reply

It buzz's at lease 2500 now at 75. Wish I had a digital tach so I could see much closer to what it is actually running. I passed a buddy one time at 75 and he said it was breathing pretty hard. I was empty at the time.
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| Member # 1527 | Joined: 6-23-2005 |
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