Author Topic: Briggs oppy race build price?  (Read 9843 times)

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Offline THawley08

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Re: Briggs oppy race build price?
« Reply #15 on: October 23, 2013, 08:51:25 am »
I figure we had roughly 2000 into our last oppy we built, machine work done by Rooster. Tons of power won almost every race it was in, I couldn't keep a trans in the thing though. 46 crank, 31 pistons and a lot of valve and carb work.
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Offline foolnhismoney

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Re: Briggs oppy race build price?
« Reply #16 on: October 23, 2013, 09:43:40 am »
We chased that oppie all summer in ARMA and I will bet it will surprise some folks at the All American. The just showing up comment is very rude considering its easy to sit at your computer and put someone down that way. Get on track at National events and numbers will be up and your comment will mean more.

Offline more4les

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Re: Briggs oppy race build price?
« Reply #17 on: October 23, 2013, 10:43:11 am »
I had a well built Oppy for a few years until last year I switched over to a Kawasaki 540. I lent out my oppy this past season and what I noticed most was....chassis. Make it handle. Make it roll easily. Get it to turn without bind. The chassis my oppy was on this tear made the engine look weak. Too many times people look for "more power" when it's the handling they need more of.

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Offline OppyOnly

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Re: Briggs oppy race build price?
« Reply #18 on: October 23, 2013, 10:46:45 am »
I personally wanna run an oppy on my racer but i've heard,sincethey have so much torque, that around turns they tend to spin out. Is that true?
The names Drew.
Been doin' this for 5 years.
Lifted 18.5hp oppy MTD is my current build
New to the race world for this but i've been offroading mowers since i was 11

Offline Jeff McKelroy

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Re: Briggs oppy race build price?
« Reply #19 on: October 23, 2013, 12:52:58 pm »
I personally wanna run an oppy on my racer but i've heard,sincethey have so much torque, that around turns they tend to spin out. Is that true?

No.  Since the opposed is a bit heavier, it tends to make the rear end loose.  You will need to play with spindle height, tire pressure, camber, etc. for proper balancing.

Offline zach87cp

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Re: Briggs oppy race build price?
« Reply #20 on: October 23, 2013, 02:14:48 pm »
We chased that oppie all summer in ARMA and I will bet it will surprise some folks at the All American. The just showing up comment is very rude considering its easy to sit at your computer and put someone down that way. Get on track at National events and numbers will be up and your comment will mean more.
i think they will be surprised i seen that oppy beat fullt bilt kohlers
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Offline PJG56

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Re: Briggs oppy race build price?
« Reply #21 on: October 23, 2013, 02:42:09 pm »
I have about $1500.00 in my oppy,i do all my own work
The best bang for your buck is have carb done by George@EC.
Paul Guptill  (oppy) #238modX
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Offline BIG AL 202

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Re: Briggs oppy race build price?
« Reply #22 on: October 23, 2013, 02:53:29 pm »
WE NEED ROOSTER TO CROW IN ON THIS! WHERES THAT FINE FEATHERED FRIEND WHEN YA NEED HIM!  LOL OPPY RUNNERS UNITE!!!!!!!
ALWAYS VOTE FOR ED!   FONGS BROTHER FROM ANOTHER MOTHER!

Offline Mowindown

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Re: Re: Briggs oppy race build price?
« Reply #23 on: October 23, 2013, 02:55:28 pm »
I have seen a onan twin oppose run with and out run built to the hilt 60CID OHV twins.  Don't know what was in those onans but they would run.  I am thinkIng they were stock bottom end with head and carb work with a good cam. Don't recall of they were bored bigger or not.
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Offline Jeff McKelroy

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Re: Re: Briggs oppy race build price?
« Reply #24 on: October 23, 2013, 03:09:22 pm »
I have seen a onan twin oppose run with and out run built to the hilt 60CID OHV twins.  Don't know what was in those onans but they would run.  I am thinkIng they were stock bottom end with head and carb work with a good cam. Don't recall of they were bored bigger or not.

The T260 Onans are the most fun  :)

The best bang for your buck is have carb done by George@EC.

Without a doubt!

Offline Burwell555

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Re: Briggs oppy race build price?
« Reply #25 on: October 24, 2013, 01:15:07 am »
No.  Since the opposed is a bit heavier, it tends to make the rear end loose.  You will need to play with spindle height, tire pressure, camber, etc. for proper balancing.

And moving the motor back as rules allow you too. Makes a world of difference from what we have tried out just to do it. Now to find the legal way to go that far  :lol:
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Offline Zippy 13N

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Re: Briggs oppy race build price?
« Reply #26 on: November 15, 2013, 12:37:16 am »
The best bang for your buck is have carb done by George@EC.

Right behind Jeff I will put a 3rd on that!  :twothumbsup:

Best money i've spent on mine.  Then there is always lightweight stuff for big cubes which always = HP.
Derrick Nichols

 

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