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Old 11-02-2018, 01:04 PM   #41
Skoolie
 
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Join Date: Aug 2018
Location: San Francisco
Posts: 139
Year: 2006
Coachwork: IC
Chassis: IC FE 9 Window
Engine: DT466E
Rated Cap: 29850
I just read through Chris's entire 545 > A1000 swap (40 pages) and yes he is one smart dude!


Great info and detail level Chris, thanks for the education.


It sounds like the 545 to 643 swap was equally fun.

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Old 11-02-2018, 02:24 PM   #42
Bus Crazy
 
Join Date: May 2016
Location: Georgia
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Year: 2001
Coachwork: Blue Bird
Chassis: IH
Engine: T444E
Rated Cap: 14
My bus is a shorty with the T444E, a 5-speed manual, and 5.38 gears. It tops out at 55 at ... 2700 RPM I believe. Being a manual, I'm reasonably sure 5th is direct drive and there is no OD. I'd like to swap it to a 4.10 gear which by the math should give me around 70 top speed. The 5.38 gear set will be available for anyone wishing to make an offer (it's an N175 axle if memory serves me correctly.)
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Old 06-06-2022, 10:58 AM   #43
Mini-Skoolie
 
Join Date: Apr 2022
Location: Chicago
Posts: 40
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Quote:
Originally Posted by Mekanic View Post
Gearing up to a higher ratio(lower number ) and getting it exactly right is not easy the first time.

Getting the RPM you want is So very easy. pick the gear, speed, and tire height and you have it.

you sound close on that 4.66 gear to me.

What RPM does that trans shift at WOT?
What is your governed speed now?

But a school bus is not a F250 pickup truck. The weight and Aerodynamics are NOT even close. Sometimes the area you will be in makes a difference if you will like your gears.
Are you going to be seeing:
Towing 5-9K lbs?
Mountain grades?

Both??

I went a little too far with my F700. however i have a 6sp manual trans so i only use 6th above 55MPH on highways.
Do you know of a good resource why I can learn about gear ratios, etc.
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Old 06-06-2022, 10:58 AM   #44
Mini-Skoolie
 
Join Date: Apr 2022
Location: Chicago
Posts: 40
Year: Don'
Coachwork: Don't have one yet
Chassis: Don't have one yet
Engine: Don't have one yet
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Quote:
Originally Posted by PeteinSF View Post
I just read through Chris's entire 545 > A1000 swap (40 pages) and yes he is one smart dude!


Great info and detail level Chris, thanks for the education.


It sounds like the 545 to 643 swap was equally fun.
where can I find this EPIC?
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Old 08-15-2022, 08:05 PM   #45
Bus Nut
 
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Join Date: Dec 2021
Location: Iowa City, IA
Posts: 645
Year: 2006
Chassis: IC CE300 (PB105)
Engine: DT466e @245hp | Allison 3000PTS
Rated Cap: 66
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Originally Posted by MarkCHI View Post
where can I find this EPIC?
https://www.skoolie.net/forums/f27/the-redbyrd-transformation-18188.html
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