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Messages - Wheelinhorse

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I built a crude but functional flowbench and am learning a lot. Although I cannot get actual flow numbers, I can measure gains and losses and am pretty surprised at some of the findings so far.

Uh oh. I have a Kwik Way boring bar and sunnen hone in the back room, some stuff I never got rid of when I closed the speed shop. This could get silly!

Had no idea these blocks could be taken out that far, if at all. Is there enough meat?

Look, I know oppys are now dinosaurs for you racers, but for us offroad tractor guys its a cheap, torquey option that works very well for what we do.
Been acquiring parts and will be starting a build soon. Complete 46CI pressure lube vertical engine, a horizontal cam cover, pump, sump, etc..  and recently scored an ARC wheel, rods, AVS pistons, and Precision 212alt cam. Yes it will be flipped horizontal. Intake is an early 2 piece, massaged, 1" tall adapter and a 27hp Kohler command 'pumper' carb on top, and 2:1 header, all are currently on the stock internal 18hp powering it right now. They both work very well- the carb made a day and night difference in power.
Since im much more concerned with low/midrange grunt than a top end screamer, how do you feel about this cam versus the stock 46ci? I have the ability to knock some base circle off the stocker, as well as all the equipment necessary to play with porting, decking/milling, valves, seats and angles, etc...
How about trading a bit of airflow for a boost in compression, a big oppy no no....
Come on, most of these things arent even raced anymore, you guys can give me some direction without giving away secrets cant ya? Ha.

Want To Buy / Who Has It? / Re: Briggs oppy pressure lube sump and cover
« on: August 05, 2021, 12:55:48 pm »
Thanks buddy. I have the whole engine- a 46ci vertical. Was going to 'flip' it to horizontal and fab up my own oil pump pickup, but the base, which would now be the side cover, is much 'thicker' than a horizontal and would require me to offset the engine a lot more than I want to.
I appreciate it though!

Want To Buy / Who Has It? / Briggs oppy pressure lube sump and cover
« on: August 04, 2021, 06:30:32 am »
Looking for a pressure lube side cover and sump/pan for a horizontal opposed Briggs.

Not sure how many of you racers still play with oppys, but they're not uncommon with the offroad tractor crowd, myself included. I've been working with CGU to get a program done to cut these gaskets, and they are now ready and perfect!
Thicknesses available from .016-.125.

You figured wrong!
Im glad to hear that!!! Haha

Heck, with the oppys being a dinosaur and everyone running V twins these days, I figured folks would have oppy stuff in piles in corners, collecting dust because nobody wants em....

Want To Buy / Who Has It? / WTB Briggs model 42 billet wheel, rods
« on: July 13, 2021, 10:15:57 am »
Looking for a good used set of billet rods and flywheel for my 18hp opposed Briggs.

Newcomers / New guy, Oppy freak
« on: July 13, 2021, 10:12:24 am »
Glad I found this place. I run an old Wheel Horse tractor, set up for offroad/trail riding, and just replaced the Kohler K321 with an 18hp Briggs- fully ported, oiling mods, bumped timing, Kohler command 25hp 'pumper' carb and a 2:1 pipe. Hoping to gain some more info here, and also hoping to score a used billet flywheel and rods for it.
Thanks in advance!

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