1.35 vs 1.5 ratios
#1
Registered
Thread Starter
Join Date: Dec 2004
Location: IN & KY
Posts: 210
Likes: 0
Received 0 Likes
on
0 Posts
1.35 vs 1.5 ratios
Does anyone know what difference changing from 1.5 to 1.35 ratio gears makes in XR drive in terms of prop pitch and size. I'm wanting to lower rpms a little without going to bigger props.
#2
Registered
Join Date: Oct 2006
Posts: 54
Likes: 0
Received 0 Likes
on
0 Posts
I did this as ,i did a gear box one xmas eve and couldnt get the same gear ratio,think i dropped about 500-600rpm ,i had a bravo one .At a guess it would equal around 1 1/2 to 2 inchs in prop pitch.It was pushing a 20ft wakeboard boat .I was proped for skiing i could hit nearly 6000rpm which was too much back to about 5500rpm.
Last edited by olmo40; 09-30-2008 at 09:06 PM.
#3
I'm not sure if this is the answer you are looking for. My stock setup was 1.50:1 Gears on 26" labbed Bravo's @ 5200 with 385 Hp motors. My current setup is 1.34:1 gears with labbed 28's & 650+ hp same RPMs.
I would think you would need to drop at least 2 sizes example: 30 now 26 with the change.
I would think you would need to drop at least 2 sizes example: 30 now 26 with the change.
#6
Registered User
Join Date: Feb 2007
Location: CDA, ID
Posts: 356
Likes: 0
Received 0 Likes
on
0 Posts
That's about what it will be.
I've been trying to figure out why I can't get my motor to spin the required 6100. I'm always about 500 short of that. The other night (after talking to a buddy) we started thinking about the gear ratio issue, sure as $hit, 1.34's in lieu of the 1.5's that were supposed to be in lower.
#7
Registered
That's about what it will be.
I've been trying to figure out why I can't get my motor to spin the required 6100. I'm always about 500 short of that. The other night (after talking to a buddy) we started thinking about the gear ratio issue, sure as $hit, 1.34's in lieu of the 1.5's that were supposed to be in lower.
I've been trying to figure out why I can't get my motor to spin the required 6100. I'm always about 500 short of that. The other night (after talking to a buddy) we started thinking about the gear ratio issue, sure as $hit, 1.34's in lieu of the 1.5's that were supposed to be in lower.
heard a story like that cept it was twins ....They searched for weeks for a problem with the Motors, tach's ect .... Finally found one 1.50 and one 1.34 .....m
#8
Registered
Thread Starter
Join Date: Dec 2004
Location: IN & KY
Posts: 210
Likes: 0
Received 0 Likes
on
0 Posts
That's about what it will be.
I've been trying to figure out why I can't get my motor to spin the required 6100. I'm always about 500 short of that. The other night (after talking to a buddy) we started thinking about the gear ratio issue, sure as $hit, 1.34's in lieu of the 1.5's that were supposed to be in lower.
I've been trying to figure out why I can't get my motor to spin the required 6100. I'm always about 500 short of that. The other night (after talking to a buddy) we started thinking about the gear ratio issue, sure as $hit, 1.34's in lieu of the 1.5's that were supposed to be in lower.
#9
Registered