Tamiya Porsche 911

[sportandmiah]

Hello,

I am new to the forum, this being my first post. I am building a Tamiya 1/24 Porsche 911 GT2. Using as much as of the model as possible, I have also converted it into a slot car. Here is the story so far:

First step was to figure out how the tranny will sit.

Photobucket sucks, and ate some of the pics of my rear axle mount...but you can kind of see it here. All aluminum parts I designed and machined to fit into this car.

[sportandmiah]

The front and rear wheels I made using a Sherline lathe. I will probably make another set so the kit wheels will fit into them.

The car uses a guide pin versus a traditional slot flag or guide. This allows the car to fishtail a little easier. The pin is a brass screw with 2 brass nuts securing it to the kit chassis. The end of the screw and bottom nut were turned down for fit into the actual slot. A couple pieces of brass were used to give the car a little weight, and also looks good IMO.

Laid down the first coat of primer. Tamiya bodies have barely any flash.

More to come soon.

[Foxer]

Could you explain to a non-slot car person why the motor mounts with the gears at an angle to each other. I am an engineer so I'm very curious about this.

It is interesting to see this conversion and I'm happy to see the motor in the rear on this!

Edited September 4, 2010 by Foxer

[sportandmiah]

Hi Foxer,

The motor is angled for a few reasons. If I were to install the motor parallel to the axle, the pinion and the spur gear wouldn't touch because the motor would rub the axle, as well as the rear tire. I could have installed the motor parallel to model chassis transmission tunnel, but I wouldn't be able to put a detailed interior in the car as there would be a big motor where the seats are. Plus, this is the only way it would fit in the rear of the car.

In regards to engineering, a sidewinder mounted motor (motor facing left to right and parallel to the axle) tends to utilize too much torque and lifts the front of the car. An inline mounted motor (facing front to back), the torque rocks the car side to side. The angle winder motor mount (like I have used here) is the middle of the road between the two and performs the best. Granted these shortcomings would hardly be noticeable to the average Joe, and many different motor mount positions are used regularly. Alas, the gear mesh is slightly tighter when utilizing an angle winder setup.

Hope that helps.

Edited September 4, 2010 by sportandmiah

[RodneyBad]

That really answered my question too.

Looking great..

I don't think the kit tires will give ya that good of traction tho

From what I've heard (hardly nuttin tho but just a thought)

[sportandmiah]

If Jairus is on this forum, check out his Porsche 911 slot conversion he built recently. It's amazing!

[DRG]

Slot cars was something I reallt enjoyed back in the late sixties in Cincinnati, Ohio. Alas i am now living in Cleveland and I don't know of any Slot Car tracks. More than likely to expensive to-day anyway.

Interesting build I am enjoying watching this.

Thank you for posting it.

[sportandmiah]

Slot cars was something I reallt enjoyed back in the late sixties in Cincinnati, Ohio. Alas i am now living in Cleveland and I don't know of any Slot Car tracks. More than likely to expensive to-day anyway.

Interesting build I am enjoying watching this.

Thank you for posting it.

Here's a list of Ohio slot car tracks. Not sure which are in or near cleveland:

A.B.S. HOBBIES -3882 GALLIA STREET NEW-BOSTON,OH,45662

ATTICA SLOT DRAGWAY-208 E. TIFFIN STREET ATTICA,OH,44807- (419) 426-9431

Brads T-Jet Raceway - Columbus Ohio 43224 - (614) 447-2250 - E-Mail: Lowboat69@aol.com

COBRA SPEEDWAY-1000 RACE STREET CINCINNATI,OH,45202-(513) 421-9020

D&D RACEWAY-262 N. MAIN STREET MARION,OH,43302- (614) 383-3777

D & K Slotcar Raceway. inside of the NorthTowne Square Mall Toledo,Ohio. Del Grace. Bus.# 419-476-9555 E-mail dk_hobbies@yahoo.com

DEMPSEY'S RACEWAY &- HOBBIES-293 KENNISON RD. LUCASVILLE,OH,45648- (614) 820-2780

FASTRAK-990 E. MAIN STREET NEWARK,OH,4305-(614) 349-0560

FLEETWING MODEL RACEWAY-4929 GLENWOOD AVE.-WILLOGHBY,OH,44094- (216) 951-4224

FREMONT HOBBIES & RACEWAY-129 IDWELL AVE. FREMONT,OH,43420-(419) 334-7488

LAKES SPEEDWAY- 3425 MANCHESTER ROAD AKRON,OH,44319 (216) 645-1333

J & B RACEWAYS- 2215 N. 5TH STREET FREMONT,OH,43420- (419) 334-2100

NORTH COAST PERFORMANCE-5821 BENTON-CAROLL RD. OAK HARBOR,OH,43449- (419) 898-0565

RACE WORLD-4000 MILAN RD. SANDUSKY,OH,44870-(419) 626-5700

RACEWAY HOBBYS-3795 ST. RT. 46, PO BOX 314 MINERAL RIDGE,OH,44440-(216) 652-4142

REDLINE RACEWAY-8648 OAK VILLAGE BLVD. LEWIS CENTER,OH,43035- (614) 548-2077

REDLINE RACEWAY-5834 MONROE STREET SYLVAN,OH,43560-(419) 885-7223

Roundtown Raceway-18600 FLORENCE CHAPEL PIKE-CIRCLEVILLE,OH,43113-(614) 474-3076

2/02SHIFTERS RACEWAY - 34600 LAKESHORE BLVD. - EASTLAKE, OHIO 44095 - 440-269-1403

SKIP'S MODEL RACEWAY-1892 WICK CAMBELL RD.-HUBBARD,OH,44425-(216) 568-7529

Slot Car Johnnie's - 7634 Asden - Reynoldsburg, Ohio 43068 - 614-864-TJET(Phone) 614-864-2800 (Fax)

STUBBYS' SLOT TRACK -1303 VANDERHOOF BARBERTON,OH,44203

THE SLOT SHOP-442 CLEVELAND STREET ELYRIA,OH,44035- (440) 365-5230 WILLIAM C.

HOLT OWNER - EMAIL RAVEN82918@AOL.COM

THE RACEWAY- 2143 Millville-Oxford Road - (State Route 27) - McGonigle, OH 45013

(513) 737-SLOT (7568) Ask for Butch or Richard.

Tom Thumb Family Hobby Center-460 Wilson Rd Columbus,OH,43204- (614) 274-5150

TR MOTORPLEX- 566 E. DAYTON DRIVE FAIRBORN,OH,45324- (513) 879-3373

[Foxer]

Hi Foxer,

The motor is angled for a few reasons. If I were to install the motor parallel to the axle, the pinion and the spur gear wouldn't touch because the motor would rub the axle, as well as the rear tire. I could have installed the motor parallel to model chassis transmission tunnel, but I wouldn't be able to put a detailed interior in the car as there would be a big motor where the seats are. Plus, this is the only way it would fit in the rear of the car.

In regards to engineering, a sidewinder mounted motor (motor facing left to right and parallel to the axle) tends to utilize too much torque and lifts the front of the car. An inline mounted motor (facing front to back), the torque rocks the car side to side. The angle winder motor mount (like I have used here) is the middle of the road between the two and performs the best. Granted these shortcomings would hardly be noticeable to the average Joe, and many different motor mount positions are used regularly. Alas, the gear mesh is slightly tighter when utilizing an angle winder setup.

Hope that helps.

Thanks for that explanation. This is why I love this place .. something new to be learned every day.

[sportandmiah]

I didn't get as detailed as I had hoped, but it's done...for now. Noticed after I took the pics that the side mirror came off.

Edited November 20, 2010 by sportandmiah

[LAone]

wow, this is way too cool. loved the slot cars as a kid. they were nothing like this or like the competetive ones.

well you have a vid of it in action??