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Author Topic: gx340 vs 31 b& s  (Read 1566 times)
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« on: April 17, 2012, 07:39:20 PM »

What one would u go with & why I know b& s very well & nothing about Honda  besides old goats that has wings
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STEVE HENDERSON
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« Reply #1 on: April 17, 2012, 08:23:16 PM »

The 340 is quite a bit smaller than a 31?
Sure you don't mean a 390?
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« Reply #2 on: April 18, 2012, 05:07:15 AM »

Prity  much honda in general g x 340...390
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STEVE HENDERSON
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« Reply #2 on: April 18, 2012, 05:07:15 AM »

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« Reply #3 on: April 18, 2012, 05:24:58 AM »

In general, in my opinion, Honda make better stock parts. You have a better platform to start with, but to make it run like Old Goat's, you have to do a ton of work and put a ton of money. After my mower is back together, I think Old Goat will be back to the drawing board. Tongue
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Aaron Rupert
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« Reply #4 on: April 18, 2012, 08:42:01 AM »

Lol yea whats Hondas flaws
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STEVE HENDERSON
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« Reply #5 on: April 18, 2012, 08:59:08 AM »

in modified form, the Honda will make more power than the Briggs 31 due to the head design. The 31 may have a bit more torque down low but, that would not make up for the power difference..
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« Reply #6 on: April 18, 2012, 09:01:41 AM »

Lol yea whats Hondas flaws
As with any other motor we use , the valve train needs to be upgraded.
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« Reply #7 on: April 18, 2012, 09:08:21 AM »

Ok  dubating on what to do a Honda motor to me is like a car motor no idea
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« Reply #8 on: April 18, 2012, 03:56:03 PM »

Heres our 340 racing gteam engines that even when we had the stock flywheel and stock rocker arms on.
http://youtu.be/fz4d0Hi8-1s
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Zach Rupert
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« Reply #9 on: April 18, 2012, 08:29:12 PM »

Steve, the Honda is a horizontal shaft and the 31 Briggs is vertical, unless you turn it on its side, like I did. A horizontal shaft engine with a jackshaft will make a little more power than an identical vertical shaft motor with a tranny or a 90 degree box, because of the extra drag created by a tranny or a 90 box. With that being said, the Briggs I used to run made more power on the bottom end than the GX390. The 390 has a little more on the top end. On most of the tracks we run on, having more bottom end to get you up out of the turns, will help you out more than having a little more top end. I think I would prefer the Briggs, IF I could keep the cranks from breaking! The Honda seems to be more reliable. I am running a precision cam, 1.2 to 1 ratio roller rockers, ARC rod, forged piston and stainless (stock size) valves, with EC double valve springs and chromoly push rods in my GX390, and a lot of time spent on the head. I also run a Walbro LMT carb and a home made intake on it.
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« Reply #10 on: April 18, 2012, 09:09:01 PM »

Yea thats what I was looking for thanx .. I went to a
Ragb what a diffrence  ....I'm still up inthe air thanx for replys
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STEVE HENDERSON
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« Reply #11 on: April 19, 2012, 03:09:46 PM »

I also like the sound of a honda they sound a heck of a lot better than a briggs.
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Zach Rupert
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