Leaving Power on the Table
11-15-2016 | 12:08 PM
#21
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Joined: Aug 2004
Posts: 187
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From: San Francisco,CA
As I research new gear sets, I have noticed (3) different parts numbers. Which ones are best in my application?
43-818928A2 15/19
43-8M0104360 15/17
43-840870A1 17/18
Any other options or part numbers out there I'm not seeing?
43-805448A-1 Is another I have seen. Will these work in my application?
An option I have considered is selling the current drive and purchasing a stock XR. Depending on value of each, I may save money instead of spending money.
43-818928A2 15/19
43-8M0104360 15/17
43-840870A1 17/18
Any other options or part numbers out there I'm not seeing?
43-805448A-1 Is another I have seen. Will these work in my application?
An option I have considered is selling the current drive and purchasing a stock XR. Depending on value of each, I may save money instead of spending money.
11-15-2016 | 01:19 PM
#22
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Joined: Feb 2005
Posts: 4,400
Likes: 25
From: Michigan
The 1.36's are NOT the issue. I have 1.36's with 502mpi's. I spin my 24's to 5100. I borrowed a pair of 26's and spun them to 4700rpms.
Being the props are used and you don't know if they are stock specs, start there.
Are you seeing a speed difference with the 26's and 28's at 4900rpms?? You should see about 4mph more with the 28's.
Being the props are used and you don't know if they are stock specs, start there.
Are you seeing a speed difference with the 26's and 28's at 4900rpms?? You should see about 4mph more with the 28's.
Switching gears is crazy, find a bone stock 24 and 26 and see what happens.
11-16-2016 | 03:37 PM
#23
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Posts: 187
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From: San Francisco,CA
Anyone have insight into the gear part numbers I listed 2 posts back?
11-16-2016 | 09:43 PM
#24
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Joined: Oct 2000
Posts: 20,272
Likes: 2,513
From: Omaha/LOTO
As I research new gear sets, I have noticed (3) different parts numbers. Which ones are best in my application?
43-818928A2 15/19
43-8M0104360 15/17
43-840870A1 17/18
Any other options or part numbers out there I'm not seeing?
43-805448A-1 Is another I have seen. Will these work in my application?
An option I have considered is selling the current drive and purchasing a stock XR. Depending on value of each, I may save money instead of spending money.
43-818928A2 15/19
43-8M0104360 15/17
43-840870A1 17/18
Any other options or part numbers out there I'm not seeing?
43-805448A-1 Is another I have seen. Will these work in my application?
An option I have considered is selling the current drive and purchasing a stock XR. Depending on value of each, I may save money instead of spending money.
15/17 is for a 1.34 (XR's are actually 1.34. regular Bravo's are 1.36)
11-17-2016 | 04:21 PM
#25
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From: San Francisco,CA
11-17-2016 | 10:14 PM
#26
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Joined: Oct 2000
Posts: 20,272
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From: Omaha/LOTO
To change ratios, you change the lower gears. The uppers stay the same in all XR's.
All the beefed up XR's by all the different companies still use the same Merc gears.
So yes, they will work in your IMCO lower.
I still do not think the gear ratio change will do anything. Getting a prop dialed in with the 1.34 will yield the same results.
All the beefed up XR's by all the different companies still use the same Merc gears.
So yes, they will work in your IMCO lower.
I still do not think the gear ratio change will do anything. Getting a prop dialed in with the 1.34 will yield the same results.
