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Pro Slot Group 20 gearing


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#26 Pablo

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Posted 13 February 2018 - 11:23 PM

I'm more concerned about some law I broke putting a C-Can in a G27 chassis more so than timing.  :shok:

Call a reputable bass boat dealer and ask them what prop they recommend for a 1985 50 horse Johnson in a brand new 20 foot Ranger Comanche. Get back to us with the results. Would it be breaking the law to ask the question? No.

 

Did you break any laws putting a G20 in a G27 chassis? No.

Did you break any laws by not listening to good advice from slot car experts? No.

 

Is this a timing problem? No.

Have you learned anything? Answer that one yourself


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#27 Samiam

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Posted 14 February 2018 - 03:17 AM

I have run older Gp-20s in track cars or play cars with no heat issues. These were 80s-90s Muras and RJRs. Full cans with long magnets.  Chassis were brass and wire Box 12s and 15s. 9-38/39 was typical. Timing would be considered low by todays standards. Maybe 28-30?  


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#28 MSwiss

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Posted 14 February 2018 - 10:10 AM

Hence why I suggested an 8T pinion to start with.

A 38 degree G20 arm is most likely made with drag racing in mind.

Mike Swiss
IRRA® Components Committee Chairman
Five-time USRA National Champion (two G7, one G27, two G7 Senior)
Two-time G7 World Champion (1988, 1990), eight G7 main appearances
Eight-time G7 King track single lap world record holder

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Note: Send all USPS packages and mail to: 5858 Chase Ave., Downers Grove, IL 60516


#29 Slot-Racer

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Posted 14 February 2018 - 11:08 AM

Hence why I suggested an 8T pinion to start with.

A 38 degree G20 arm is most likely made with drag racing in mind.

 

Since there is SO much debate on this I thought it would be ideal to ask advice of ProSlot. They recommended 9/39. They even stated that their setups they do with wing cars they send out with a G20 is geared 9/39 and there should be no issues. 


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#30 MSwiss

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Posted 14 February 2018 - 12:19 PM

Thank god you finally got talked out of a 10T, or even the one post, that suggested an 11T.
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Mike Swiss
IRRA® Components Committee Chairman
Five-time USRA National Champion (two G7, one G27, two G7 Senior)
Two-time G7 World Champion (1988, 1990), eight G7 main appearances
Eight-time G7 King track single lap world record holder

17B West Ogden Ave Westmont, IL 60559, (708) 203-8003, mikeswiss86@hotmail.com (also my PayPal address)

Note: Send all USPS packages and mail to: 5858 Chase Ave., Downers Grove, IL 60516


#31 Slot-Racer

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Posted 14 February 2018 - 12:29 PM

Thank you. I never planned to do 10 as it seemed very high more so than 11. 11 was never going to be used, but I was iffy on the 10. I was more on the fence about 38 or 39 spur gear using a 9 tooth actually. I hate to re-solder or change a setup once I'm done with it and just wanted a good starting point and fast. Thank you all for your input.


Mario Damis

#32 MSwiss

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Posted 14 February 2018 - 03:20 PM

"Posted 26 January 2018 - 10:13 AM
Thinking about it, you could start with 8-39.

If it's flat in the Bank, and cool running, you might be able to switch to 9-38, without unsoldering the motor.

Mike Swiss"


Like I suggested 2 1/2 weeks ago.

Maybe I'll start wing racing again, so I can pad my resume a bit more.

Maybe once I get up to 16 G7 World records, you'll throw caution to the wind, and believe me the first time. Lol
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Mike Swiss
IRRA® Components Committee Chairman
Five-time USRA National Champion (two G7, one G27, two G7 Senior)
Two-time G7 World Champion (1988, 1990), eight G7 main appearances
Eight-time G7 King track single lap world record holder

17B West Ogden Ave Westmont, IL 60559, (708) 203-8003, mikeswiss86@hotmail.com (also my PayPal address)

Note: Send all USPS packages and mail to: 5858 Chase Ave., Downers Grove, IL 60516


#33 Pablo

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Posted 14 February 2018 - 03:31 PM

World Records? We thought you were just some kid with a Tyco home set :pardon: :roflmao:


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Paul Wolcott

#34 MSwiss

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Posted 14 February 2018 - 03:52 PM

I'm expecting at least one more thread on this subject.

Probably titled "Holding out for Beuford". Lol

Mike Swiss
IRRA® Components Committee Chairman
Five-time USRA National Champion (two G7, one G27, two G7 Senior)
Two-time G7 World Champion (1988, 1990), eight G7 main appearances
Eight-time G7 King track single lap world record holder

17B West Ogden Ave Westmont, IL 60559, (708) 203-8003, mikeswiss86@hotmail.com (also my PayPal address)

Note: Send all USPS packages and mail to: 5858 Chase Ave., Downers Grove, IL 60516


#35 Slot-Racer

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Posted 14 February 2018 - 04:16 PM

I'm expecting at least one more thread on this subject.

Probably titled "Holding out for Beuford". Lol

 

Ok I'll start that thread for you.  :sarcastic_hand:


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#36 Slot-Racer

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Posted 14 February 2018 - 06:26 PM

Well so far it's coming together well. Got the chassis all put together. Waiting now for the 9/39 gears and body to come in. 

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#37 gotboostedvr6

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Posted 14 February 2018 - 08:59 PM

I see a major problemo.
Your front wheels don't have ball bearings. Also they are mounted crook'd.


Your prob gonna want to add lead to the front. Maybe have it on hand for the maiden...
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#38 NY Nick

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Posted 15 February 2018 - 10:01 AM

Now I have to dig up my Group 20 stuff. 


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Nick Cerulli

#39 Slot-Racer

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Posted 15 February 2018 - 12:40 PM

I see a major problemo.
Your front wheels don't have ball bearings. Also they are mounted crook'd.


Your prob gonna want to add lead to the front. Maybe have it on hand for the maiden...

 

So where can I get bearing for the front wheels?


Mario Damis

#40 Slot-Racer

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Posted 16 February 2018 - 07:11 PM

So I built another chassis and I can't figure out how to get the tiny front wheels to support the front end?  :laugh2:  

 

 

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#41 MSwiss

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Posted 16 February 2018 - 07:14 PM

So a C can fits in there, and at that soft angle?

Mike Swiss
IRRA® Components Committee Chairman
Five-time USRA National Champion (two G7, one G27, two G7 Senior)
Two-time G7 World Champion (1988, 1990), eight G7 main appearances
Eight-time G7 King track single lap world record holder

17B West Ogden Ave Westmont, IL 60559, (708) 203-8003, mikeswiss86@hotmail.com (also my PayPal address)

Note: Send all USPS packages and mail to: 5858 Chase Ave., Downers Grove, IL 60516


#42 Slot-Racer

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Posted 16 February 2018 - 07:17 PM

I'm not sure yet. I have the 39 gear coming in today and will see. I'm more than positive it will as I have two of these a long and a short and with a 38 spur and 9 pinion it seems fine.


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#43 Robert BG

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Posted 17 February 2018 - 09:57 AM

I'm not sure yet. I have the 39 gear coming in today and will see. I'm more than positive it will as I have two of these a long and a short and with a 38 spur and 9 pinion it seems fine.

You can easily check and see if the motor box is wide enough without the gears ;)

On all of my 27L chassis's (a few Kofords and a few diff 4 rails) even a 27 motor is a tight fit around the endbell.On average I'd say its easily less than a 1/16 of a inch and a C can is about a 1/4 inch or so longer.That is why I was doubtful it'd fit but not everyone has the same width motor box,so who knows.


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#44 David Rees

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Posted 17 February 2018 - 06:30 PM

I think  G20 was a better class than    G27 it made more sense because it used much cheaper and easy to magnetize  ceramic magnets . 
​In my opinion Cobolt magnets should be just for opens . 



#45 Robert BG

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Posted 18 February 2018 - 09:46 AM

I think  G20 was a better class than    G27 it made more sense because it used much cheaper and easy to magnetize  ceramic magnets . 
​In my opinion Cobolt magnets should be just for opens . 

International 15 was my favorite but I also raced  quite a few 20's back in the 90's.Cobalt classes were just way too expensive for me when I was in school.Back then if you knew what you were doing you could compete with a home built piano wire chassis.The guy that got me started was named Ted but I'm not sure of his last name.I think it was Matowski.Then I spent a few days pitting next to the late great Craig Landry at Zeplin hobbies and Craig taught me more about slot cars in those 3 days than i learned in years.When I look back on it I think all my questions might've hurt his racing that weekend but he didnt seem to mind.As a teenager in school i couldnt buy much but he'd still take the time and answer my questions over the phone and he even sent me a Christmas card with 2 chassis kits.


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#46 Dallas Racer

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Posted 18 February 2018 - 10:01 AM

Craig just liked to help people. I only met him once at a Texas series wing car race. Without me even asking, he started schooling me, and that went on for a couple of hours. Afterwards, I phoned and emailed him several times for more advice, and he was always more than happy to help me. Great guy.


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#47 MSwiss

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Posted 18 February 2018 - 11:09 AM

International 15 was my favorite but I also raced  quite a few 20's back in the 90's.Cobalt classes were just way too expensive for me when I was in school.Back then if you knew what you were doing you could compete with a home built piano wire chassis.The guy that got me started was named Ted but I'm not sure of his last name.I think it was Matowski.Then I spent a few days pitting next to the late great Craig Landry at Zeplin hobbies and Craig taught me more about slot cars in those 3 days than i learned in years.When I look back on it I think all my questions might've hurt his racing that weekend but he didnt seem to mind.As a teenager in school i couldnt buy much but he'd still take the time and answer my questions over the phone and he even sent me a Christmas card with 2 chassis kits.

Yes, it was Ted Matkowski.

A nice guy and member of Team Fugawee, because of him, and his traveling partners penchant for getting lost going to races.

"We're the Fugawee".

Craig was a great guy.

Your prototypical "curmudgeon with a heart of gold".
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Mike Swiss
IRRA® Components Committee Chairman
Five-time USRA National Champion (two G7, one G27, two G7 Senior)
Two-time G7 World Champion (1988, 1990), eight G7 main appearances
Eight-time G7 King track single lap world record holder

17B West Ogden Ave Westmont, IL 60559, (708) 203-8003, mikeswiss86@hotmail.com (also my PayPal address)

Note: Send all USPS packages and mail to: 5858 Chase Ave., Downers Grove, IL 60516


#48 Samiam

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Posted 18 February 2018 - 11:15 AM

Yes, it was Ted Matkowski.

A nice guy and member of Team Fugawee, because of him, and his traveling partners penchant for getting lost going to races.

"We're the Fugawee".

.


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#49 Slot-Racer

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Posted 19 February 2018 - 11:30 AM

You can easily check and see if the motor box is wide enough without the gears ;)

On all of my 27L chassis's (a few Kofords and a few diff 4 rails) even a 27 motor is a tight fit around the endbell.On average I'd say its easily less than a 1/16 of a inch and a C can is about a 1/4 inch or so longer.That is why I was doubtful it'd fit but not everyone has the same width motor box,so who knows.

 

Yes it fits and meshes perfectly with a 9/39.

 

 

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#50 Jaz

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Posted 19 February 2018 - 05:05 PM

Yes, it was Ted Matkowski.

A nice guy and member of Team Fugawee, because of him, and his traveling partners penchant for getting lost going to races.

"We're the Fugawee".

 

Actually they started out as "Team Ultralite". They used to drive up to Long Island in Ted's rusted, smoke filled Isuzu Trooper. Used to kick his butt in 15's. Ahhh, those were fun daze!

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