Lower Unit Gear Ratio?

[XSDRD]

I got one more question dealing with my boat performance. Is there a way to find the gear ratio of the reman lower unit without taking it off the motor assembly and counting the teeth?

[rude power]

unless its a lighting lower unit its 1:87

[colreb2000]

<table width="90%" cellspacing=0 cellpadding=0 align=center><tr><td>Quote, originally posted by rude power &raquo;</td></tr><tr><td class="quote">unless its a lighting lower unit its 1:87</td></tr></table>

I was under the impression that they are all 1:7 now.

[SEAHORSE]

<table width="90%" cellspacing=0 cellpadding=0 align=center><tr><td>Quote, originally posted by colreb2000 &raquo;</td></tr><tr><td class="quote">

I was under the impression that they are all 1:7 now. </td></tr></table>

Sounds like you gotta hang around here more and pay attention and stay out of those "other" boating forums full of wanna-be's and mis-information specialists along with assorted a$$-holes and the ignorant ones.

[colreb2000]

<table width="90%" cellspacing=0 cellpadding=0 align=center><tr><td>Quote, originally posted by SEAHORSE &raquo;</td></tr><tr><td class="quote">

Sounds like you gotta hang around here more and pay attention and stay out of those "other" boating forums full of wanna-be's and mis-information specialists along with assorted a$$-holes and the ignorant ones.</td></tr></table>

http://www.bbcboards.net/zerothread?id=556118

Well...I need the answer on the Magnum gearcase then. Kinda need to know since I'm replacing my LU.

[ChampioNman]

<table width="90%" cellspacing=0 cellpadding=0 align=center><tr><td>Quote, originally posted by colreb2000 &raquo;</td></tr><tr><td class="quote">

I was under the impression that they are all 1:7 now. </td></tr></table>

No the L2 only is 1.71:1 on the new cases. 1.86:1 is the norm on most all BRP cases. Except the V-4's which are 2:1.

[colreb2000]

<table width="90%" cellspacing=0 cellpadding=0 align=center><tr><td>Quote, originally posted by ChampioNman &raquo;</td></tr><tr><td class="quote">

No the L2 only is 1.71:1 on the new cases. 1.86:1 is the norm on<u> most </u>all BRP cases. Except the V-4's which are 2:1.</td></tr></table>

So does anybody <u>really</u> know what gear ratio comes in a MAGNUM GEARCASE? This is getting kinda aggrevating.

This is from the Evinrude website.

"The 250 H.O. features a new Lightning (1.71:1 /.58 ratio) gearcase with low- water intakes, a robust gear set, maximum factory-tuned horsepower and new H.O. graphics. The 250 H.O. is available in 20" and 25" blue and 20" white models.

The 300-hp features a new SLE Magnum (Straight Leading Edge) gearcase and is available in 25" and 30" white, standard and counter rotation for inshore and offshore saltwater rigs. Perfect for pontoon applications is the 20" white, standard rotation model. "


I'm just looking for a straight "this is what you have" answer.

Sorry for the hijack

[ChampioNman]

The Magnum is a big old honking case and has beefier gear set. The ratio is 1.86:1. The only other V-6 GC is the L2 and it is 1.71:1.

[colreb2000]

Thank you. I would like to have the 1.7 gears on my 2005 Ficht 250, which leads me to these questions.

Can the L2 gearcase fit on a ficht motor?

Can it be coned (w/ low water pickup)?

Will L2 gears fit into a mangum gearcase it the L2 can't be coned?

[ChampioNman]

No the L2 is for the E-tecs it is the new lightning for the 3.4L motors.

[colreb2000]

So I'm pretty much stuck with the 1.86 gears then, huh? That sucks. And Evinrude wonders why they play 3rd fiddle to Mercury and Yamaha.

[ChampioNman]

I don't design them I just fix them.

[colreb2000]

I've always been a Merc man. I didn't buy my boat for what it had on the back of it let me tell ya. If I had the green.....I would put a sporty on there. Nobody is even close to Merc racing when it comes to lower units.

[ChampioNman]

Preaching to the choir.

[SEAHORSE]

<table width="90%" cellspacing=0 cellpadding=0 align=center><tr><td>Quote, originally posted by colreb2000 &raquo;</td></tr><tr><td class="quote">Thank you. I would like to have the 1.7 gears on my 2005 Ficht 250,</td></tr></table>

all the big block standard V6's since 2002 have the same magnum gearcase ratio which has 13-24 gears with a ratio of 1.85, same as all the other standard V6's

The Lightning gearcase family is designed for high performance use (HO models) and can be purchased with a 1.71 ratio (14-24) or with a 1.86 ratio (14-26) if you want to buy one outright.

These gearcases fit all V6's since 93 and can fit many before that

Get an Evinrude brochure or see a dealer and read the 2010 Product Update booklet pages 68 and 69 for gearcase assembly part numbers.

[TraceF3]

<table width="90%" cellspacing=0 cellpadding=0 align=center><tr><td>Quote, originally posted by colreb2000 &raquo;</td></tr><tr><td class="quote">Thank you. I would like to have the 1.7 gears on my 2005 Ficht 250,</td></tr></table>

all the big block standard V6's since 2002 have the same magnum gearcase ratio which has 13-24 gears with a ratio of 1.85, same as all the other standard V6's

The Lightning gearcase family is designed for high performance use (HO models) and can be purchased with a 1.71 ratio (14-24) or with a 1.86 ratio (14-26) if you want to buy one outright.

These gearcases fit all V6's since 93 and can fit many before that

Get an Evinrude brochure or see a dealer and read the 2010 Product Update booklet pages 68 and 69 for gearcase assembly part numbers.

Good info even 12 years later. Thank you!

.

[tdt91]

I'm glad this thread was revived.
I just had my spare (L1) LU installed on my 2008 200HO because some work last year by a dealer letting his flunky do the work destroyed my L2. I tested the L1 yesterday and it seemed like I could get to higher RPMs faster, does that make sense?
The way I read this thread is that my L1 is 1.86 and my L2 is 1.7?
My 26P Trophy was just right with the L2, should I see any difference with the L1?
My L2 part number is 5009342
Never Mind ( I just looked it up and it shows my gears are 1.86