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 Post subject: Crossfire on the beach??
PostPosted: Fri May 12, 2017 8:54 pm 
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Hey guys. I've been working on a Crossfire 150R in hopes to putt around at the beach. Those of you that have driven these in the sand how do they do? What mods do I need to do? This is what I've done so far:

New clutch with yellow springs and belt
1500 RPM torque spring
12g Rollers
Redneck Intake
New 28mm carb and manifold
HP Ignition system
Rebuilt brakes
20" LED Light bar
LED headlights
2 LED Stop/Tailights
2 Lawn Tractor Batteries

Next I was thinking about upgrading the charging system, adding a small blower fan to the clutch intake, and a radiator fan behind the seat to help cool the engine. It gets hot on the NC beaches.

I'm going to need some sort of canopy top too. Any ideas where to get one or should I try to make one with grommets and shock cord?

Any ideas, suggestions, or comments are appreciated!

Tom


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 Post subject: Re: Crossfire on the beach??
PostPosted: Fri May 12, 2017 10:09 pm 
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Posts: 16860
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Location: Pacific NW
Sand takes a lot of torque. Look at doing at least these upgrades:

Cold air intake using a 6" intact tract and dual-layer UNI filer and filter sock
Long duration torque cam
Rejetted carburetor
* A ported and polished head will do wonders, but is expensive
12g slider or 10g roller weights in the variator
Red 2000 RPM contra main clutch pulley spring
39t axle sprocket

You will also need to address the tires. You want as much flotation on the sand as possible and you do not want aggressive tires that will rob the engine of more power. Look at the following:

22x8-10 front tires with very little tread and a pattern that runs the down the centerline of the tire instead of accross
22x10-10 rear tires or wider with a "snow" tread like this:

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 Post subject: Re: Crossfire on the beach??
PostPosted: Thu May 18, 2017 7:06 pm 
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Thank you PGH. About the cam, would an A12 work? If I'm going to replace the cam and have the head off for P&P I may as well upgrade to a larger bore and piston. What would you recommend?

Tom


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 Post subject: Re: Crossfire on the beach??
PostPosted: Thu May 18, 2017 7:31 pm 
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I would wait to replace your bore and piston when the original is worn.

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 Post subject: Re: Crossfire on the beach??
PostPosted: Thu May 18, 2017 10:00 pm 
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Would you recommend an A12 cam?


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 Post subject: Re: Crossfire on the beach??
PostPosted: Thu May 18, 2017 10:36 pm 
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I had good luck with an A12 but it does limit upper end speed. I was after torque and was willing to have 30 mph top end speed with my final setup.

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 Post subject: Re: Crossfire on the beach??
PostPosted: Fri May 19, 2017 9:27 pm 
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Location: central North carolina
Carova Beach Buggy wrote:
It gets hot on the NC beaches.
Tom


Just curious, which NC beaches are you planning to run on? At one time the National Seashore, (outer banks) didn't allow "open wheel type buggies" I was told this some years back when trying to get a permit to run the buggies on the beach. The rules may have changed though. It was explained they discourage these types of vehicles because they tear up the beach real bad. People were trying to climb the dunes and other stupid stuff. Only vehicles like pickups or suburbans and stuff the fishermen use. It must be 4 wheel drive also. Further south, from Morehead city down, the rules are much more relaxed and you can run the beach but only during certain times of the year. (off tourist season) If you know of a good place please share. It's a real thrill for me to run the beach at low tide.

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