Landracing Forum

Volkswagen L S R => Volkswagen L S R => Topic started by: aircooledtechguy on November 10, 2014, 12:16:53 PM

Title: Motorcycle tires on skinny rims
Post by: aircooledtechguy on November 10, 2014, 12:16:53 PM
After seeing a couple cars at this years WOS running motorcycle tires, I have had a hard time getting this out of my head.  Clearly my staggered 6.5"/8" wheels with their corresponding 205/235 tires, while great on the street/track, are NOT optimal for the salt. :lol:

So I contacted my buddy who can narrow a set of Porsche wheels for me in hopes of running 17" motorcycle tires and he mentioned that motorcycles use a different bead seat on the wheels/tires.  :?  Huh??  So how did those of you that ran the motorcycle tires accomplish this on stock rims??

I've got a set of base model Boxster twist wheels that have the perfect offset to the outer rim lip that could be narrowed easily but why bother if tires won't safely mount. . .
Title: Re: Motorcycle tires on skinny rims
Post by: generatorshovel on November 10, 2014, 03:47:00 PM
http://www.landracing.com/forum/index.php/topic,13847.45.html
Title: Re: Motorcycle tires on skinny rims
Post by: vwpsycho on November 11, 2014, 11:48:53 PM
We run 15x6 VW Passat steel wheels. We've used 23", 24" and 26" Goodyear Frontrunners up to 220 mph on a 3200 lb. FWD car with ~1000 lb on each drive tire with no issues whatsover.
Title: Re: Motorcycle tires on skinny rims
Post by: Kiwi Paul on November 12, 2014, 12:07:22 AM
Abe--Make sure you really look at those Frontrunners  each time you have run them. I Inspected a pair that came from a front wheel drive turbo car that runs in the 230 range, and they were not nice. Tread chunking, deformation and a case of Driver Shorts Fill....The better bet would be the correct Goodyears if you get the Passat going a bit quicker. By the way--I think I Inspected your car when you first bought it out. Nice Job..
Title: Re: Motorcycle tires on skinny rims
Post by: 36hplandspeedracer on March 11, 2015, 08:48:11 PM
Dewey and Abe run the worlds fastest four cylinder VW, their 2000 Passat. Like Kiwi said, it's nice.

(http://i494.photobucket.com/albums/rr301/36hplandspeedracer/130%20Misc/WOS14889-Copy_zpsd00d5478.jpg) (http://s494.photobucket.com/user/36hplandspeedracer/media/130%20Misc/WOS14889-Copy_zpsd00d5478.jpg.html)
Photo by Burly Burlile

Burly
Title: Re: Motorcycle tires on skinny rims
Post by: dw230 on March 12, 2015, 01:04:50 PM
That car is faster than Rick Yacoucci's 'Busa streamliner?

DW
Title: Re: Motorcycle tires on skinny rims
Post by: Speed Limit 1000 on March 12, 2015, 10:59:21 PM
Dan, He said VW :-D
Title: Re: Motorcycle tires on skinny rims
Post by: dw230 on March 13, 2015, 10:00:52 AM
Whoops, you are right John - I read too fast.

DW
Title: Re: Motorcycle tires on skinny rims
Post by: BobsVW on March 17, 2015, 12:31:34 AM
When I started my Bonneville build with my 1968 VW Bug, I couldn't find tires rated for the USFRA 130/150 classes. Ended up talking to BJ Burkdoll, the USFRA tech inspector. I'm using Hoosier drag racing front tires on both ends of my car...23" on the front to help drop the front end, and 25" for the rear.

Another racer uses motorcycle tires.

BUT, in both cases we are both using narrow VW rims...4.5".

Don't even think about using wide tires on the salt...Narrow is required/desired/the way to go.
Title: Re: Motorcycle tires on skinny rims
Post by: fredvance on March 17, 2015, 11:22:42 AM
oboy here we go!! :dhorse:
Title: Re: Motorcycle tires on skinny rims
Post by: redhotracing on March 17, 2015, 12:39:14 PM
Dewey and Abe run the worlds fastest four cylinder VW, their 2000 Passat. Like Kiwi said, it's nice.

(http://i494.photobucket.com/albums/rr301/36hplandspeedracer/130%20Misc/WOS14889-Copy_zpsd00d5478.jpg) (http://s494.photobucket.com/user/36hplandspeedracer/media/130%20Misc/WOS14889-Copy_zpsd00d5478.jpg.html)
Photo by Burly Burlile

Burly


Isn't Das Bullet the fastest 4cyl. VW @ 246.xxx?

Love the Passat, BTW.
Title: Re: Motorcycle tires on skinny rims
Post by: Seldom Seen Slim on March 17, 2015, 01:46:12 PM
Thanks for saying that, Fred.  I was going to say it -- but thought I'd let you lead the band this time. :evil: :evil:
Title: Re: Motorcycle tires on skinny rims
Post by: dw230 on March 18, 2015, 03:15:24 PM
I thought Das Bullet t a powered by Audi? Or are they the same company?

DW
Title: Re: Motorcycle tires on skinny rims
Post by: redhotracing on March 19, 2015, 09:50:21 AM
DW-
I thought Das Bullet t a powered by Audi? Or are they the same company?

DW

VW/Audi use the same (in Cosgrove's case) 1.8T motor... the only difference in
application use is sometimes Audi will put one in longitudinally for an AWD car...

I've had that motor in cars from each manufacturer; same thing... They can take
an outstanding amount of boost. A friend in upper NY has one sitting at 600awhp
in his 2001 Audi A4 Avant (WAGON)--- Talk about a sleeper!

DW- You guys are running a turbo VR6 in your MMP, right? Another solid motor...  :mrgreen:

Title: Re: Motorcycle tires on skinny rims
Post by: jacksoni on March 19, 2015, 11:48:23 AM
I thought Das Bullet t a powered by Audi? Or are they the same company?

DW
Dan- I was wondering if this sort of name swapping in any way runs afoul of engine swap rules? Same engine but Audi and VW are clearly different critters, a least in some ways. Of course same problem with Honda/Accura and Nissan/Infiniti  etc.
Title: Re: Motorcycle tires on skinny rims
Post by: redhotracing on March 19, 2015, 02:05:46 PM
These are the exact same engine; like Honda/Acura and Nissan/Infiniti, they generally start with the same engine for a given unibody, then may change airbox design, injectors, etc. depending on model and trim... Other than the plastic on top of the 1.8T (now a DI 2.0T), they are all serialized as VAG (VW Audi Group).
Title: Re: Motorcycle tires on skinny rims
Post by: dw230 on March 19, 2015, 03:35:44 PM
Two answers:

Yes we are using the VR6 with turbo, had the record at 189.6 record is now standing at 190.5. We have gone faster w/G class blown 2 liter, 194.5. Lots of potential in the VR6 to take record from the Toyota in F class.

The name difference does not violate the engine swap rule if YOU can prove that is is the same engine w/a different name on the cam cover.

DW
Title: Re: Motorcycle tires on skinny rims
Post by: jacksoni on March 19, 2015, 03:44:02 PM
Thanks, Dan and Luke. I am aware the basic engines are the same. But there are those- I am not one of them- who might take exception calling it a swap. Especially right after they lost a record :cheers: Just wanted some horses mouth clarification.  End of  :dhorse: :dhorse: :dhorse:
Title: Re: Motorcycle tires on skinny rims
Post by: redhotracing on March 19, 2015, 04:10:51 PM
Two answers:

Yes we are using the VR6 with turbo, had the record at 189.6 record is now standing at 190.5. We have gone faster w/G class blown 2 liter, 194.5. Lots of potential in the VR6 to take record from the Toyota in F class.

DW

Indeed, the VR6 has plenty of potential, as do most of the VAG engines. I assume the "Toyota" is a 2JZ?
Title: Re: Motorcycle tires on skinny rims
Post by: Rex Schimmer on September 26, 2016, 09:08:48 PM
You can get forged aluminum 17 inch motorcycle wheels from All American Wheels, http://www.allamericanwheel.com/wheels.html, They are 3.5 wide and have a blank center that you can machine to fit your requirements and they are made for motorcycle tires.

Rex
Title: Re: Motorcycle tires on skinny rims
Post by: dw230 on September 29, 2016, 05:28:38 PM
I just reread this post. Confused to say the least. Rule 2.F specifically forbids motorcycle tires on cars, especially over 200 MPH. I don't know why these cars have been passed by tech and why are these tires encouraged by 36 HP Challenge?

DW
Title: Re: Motorcycle tires on skinny rims
Post by: Stainless1 on September 29, 2016, 11:31:03 PM
Dan, I think the MC tires they are talking about are the Goodyears 17x3 LSR tires, they are not really MC tires.  I think Sparky has them on the front of his Lakester
Title: Re: Motorcycle tires on skinny rims
Post by: SPARKY on September 30, 2016, 12:14:20 AM
way more people than me!!!!!!!!!!  They are Goodyear LSR 400 mph rated tires just happen to mount on MC spec wheels because that's what the dragsters run---

they are triple purpose tires  Drag  :-D , LSR  :-D MC  :-D
Title: Re: Motorcycle tires on skinny rims
Post by: salt27 on September 30, 2016, 01:05:59 AM
Dan is right about motorcycle tires in the VW 36 HP Challenge.

They are not the 17s.
Title: Re: Motorcycle tires on skinny rims
Post by: Stainless1 on September 30, 2016, 09:39:28 AM
Guess I didn't pay that much attention to the Vdubs.... they have their own set of rules, like the other speed clubs, but I would guess that most of them weigh less than 2 LSR motorcycles  :|
Title: Re: Motorcycle tires on skinny rims
Post by: SPARKY on September 30, 2016, 10:39:54 AM
hard core chuckle  :-D
Title: Re: Motorcycle tires on skinny rims
Post by: SteveM on October 03, 2016, 04:49:11 PM
I can't speak to the topic of motorcycle tires, but I did notice that at least one successful Karmann Ghia was running on Formula Vee tires, which are available in a couple of different diameters (21.5" and 22" at a minimum"

http://www.americanraceronline.com/tires/formula-v-pro-four/

They are legitimate "racing" tires, but I was not able to see a weight rating for them.

Steve.