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Just bought some FK rod ends from Summit. As with the last time I bought the same part elsewhere a few years ago, approx 25% of them had excessive play in the ball. Contacted Summit - The female...

Mike was truly an F440/500/600 OG. His cars changed the class and ruled for over a decade.

Unless there's a reason the 7' is the max, I highly recommend an 8.5'. The ability to walk down the sides of the car in the trailer FAR outweighs any negatives of the wider trailer.

I think you would be wasting your time at a Ski-doo/Sea-doo dealer. Would you take a Fit-powered FF to a Honda dealer? I've shipped many Rotax engines. It's easy.

Chuck,

Sorry to hear you are still having engine problems. Maybe send the engine and electronics to Mel Winnie?

Cory

Just sent you a PM.

Although I visit Apex daily and appreciate the discussions and information, most of the F500 traffic has moved to the SCCA F500 and FMod Facebook group. You will probably get more responses there.
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Fuel Safe made the cells for Red Devils. That being said, any of the manufacturers can make a cell from an old one. There is a currently active thread here discussing custom fuel cells and other...

Not sure what size you are trying to find. Hoosier discontinued the taller tire (19) in all compounds. They also discontinued the R25 compound in the shorter tire (18). The only remaining slick...

By "drive belt," I assume you mean the belt transmitting power from jackshaft to axle (not the clutch belt). Have you aligned the jackshaft and axle?

Advice #1 - Do the alignment with the normal...

Jeff - Thanks for the update. A lot of folks have been praying and hoping for the best. The original comments I heard were much more serious, so this is great news.

Cory

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If we actually "followed the science," hydrogen would be the obvious choice. Sadly, even BMW gave up on it last year after being one of the earliest and biggest supporters. Even they...

There are two additional people building new cars (7 total chassis in production, I think), and others in the design phase.

The last new Red Devils were two kits that Don sent to Steve Jondal about 8-10 years ago. For probably 4-5 years Don had been winding down, just selling parts already on the shelf and helping...

I think the web site said "2 left in stock" when I ordered. The owner told me that AIM is a "newer line" for them. Best I can tell they are authorized to sell AIM but don't have the full service...

No replies here, so I did some more internet sleuthing. Found raceplumbing.net mentioned positively on some drag racing forums. I also sent questions to the customer service e-mail on their web...

I'm with you - I don't use FB except for car-related groups.

I see you joined the F500 group. I think one or both of the cars Jim Murphy (F600 Challenge) mentioned that Clint and Dan McMahan have...

The F500 suspensions are very limited by the rules, but have become sophisticated within those rules. One of the limiting factors is they must use rubber pucks of a specific size as the...

I happened on a site called raceplumbing.net when searching for parts online. It's affiliated with Dan Hellmer Racing in Imperial, MO. They seem to mainly cater to drag racers but have good prices...

Yes - Introduce yourself on the FB group and post a WTB note. I think there are several good 4-stroke F500s (we don't call them F600s anymore, because we are all one class) for sale right now.
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There is also a majors race at New Jersey Motorsports Park in July. The F500 field is usually 3-6 at that race.

George is correct. There are currently 5 F500s signed up for the Pittsburgh race at the end of this month. 4 of those cars will have the motorcycle engine (aka - F600). There are usually 6-10...

James,

You are correct - F500/600 is a blast and great value. There is an active F500/FM Facebook group. Try posting your question there.

Cory

I've had nothing but good experiences with Appalachian for 20 years.

F500 Brethren - We all have our opinions on this topic but it only hurts the class to fight the battle again. Let's focus on growing 4-stroke and 2-stroke participation.

Cory

Tim Friest was DNS. Don't know why.

Awesome race. I could not see turn 1 and did not know how Jondal, Lapham, Jorgensen and Joslyn fell back from the lead pack so quickly until I saw Jason...

At Homestead and Pitt this year, the tow drivers wanted to use a hard connection. When I asked to hold the rope instead, they acted like they'd never heard of that before. The driver at Homestead...

Lance - So glad that you finally got some laps with the 593!

Cory

Clint,

Thanks to you and whoever else got this clarification approved. It's been a grey area in the rules, especially since most every 4-stroke car has at least a mechanical blipper already.
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Lance - hope things get better from here. You will definitely enjoy the power of the 593.

Cory

I have a very reclined seating position in my car. Bell M8 works fine with a HANS.

Cory

Welcome! It is generally accepted that the 2-stroke/CVT F500s are better for autoX than the bike-engined F500s. The autoX guys are very active on the F500/FM Facebook Group.

Cory

Make sure that the kill circuit is open to run and closed to ground to stop. Not sure what type of kill switch you have but they do fail sometimes and I've always found the wiring counterintuitive.

Lance,

Have you compared your wiring to the MPEM diagrams at F500.us? The ground for ignition kill running through two switches used to trip me up sometimes.

I agree that last time was a disaster. I also think 10-minute sessions are worthless. My recommended solution would be to alternate days with each class going out first. The first class out on...

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Amen! Been a long time since I had to add weight to a car.

It's somewhat depend on the ballast material, shape and weight. I used a block of lead. Drilled a hole through it and bolted it to the belly pan.

@Captainrags - Did you get my PM?

Cory

Although the site is no longer being maintained and the forum is not active, there is still a ton of technical info for 2-stroke F500s on our old class forum site: F500.us.

I encourage anyone new...

CDs of Ski-Doo manuals are easy and cheap to find online. You just have to know which sled your engine came from. I think I still have a manual for the 494 in your car and would be glad to send it...

I like the idea, but check the weight of your car. My 2-stroke Red Devil would go across the scales at 860-865 lbs. I weigh approx 200. That means the car would exceed the 600 lb capacity of this...

My understanding is that he sold his shop and now works full time from his motor home/mobile shop. Sorry I can't provide more info. Maybe asking the same question in the FB or SR sections might get...

Looks like the new rules are for all classes, not just FV.

Cory

To answer your original question, in 26 years of racing F500s I have never seen an external electric starter. Everyone either uses the type of onboard electric starter described above or has someone...

Center gear on rear axle and short drive belt - Phantom?

UPDATE: My post above is incorrect. The car has been identified as a Zink.

It was a great start to the 2021 racing season at Homestead last weekend, with six F500s taking the green flag on Saturday and five on Sunday. Not only was it a great weekend of racing and...

Lance,

I know the forum is broken, but take a look at F500.us. There is info on the restrictors. You can buy them directly from the manufacturer (Cometic, I believe). They updated the design to...

For Red Devil shocks, which have the puck turned on its side, there is compression but not too much. It's not adjustable so I never measured it. I suppose that some people may be able to compress...

Do you remember the mechanical problem with Clint's car during the race?