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Tower Hobbies - TOWG0125 TOW90-01-2446B 90-01-2446B 667300301253 0667300301253
Manufacturer Stock#
90-01-2446B
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  Tech Notes

Accessories Needed

Possible Substitutions

Replacement & Optional Parts

Parts Compatibility

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Tower Hobbies TOWER .25 RC BB Car Engine
 
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Tower Hobbies TOWER .25 RC BB Car Engine
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Stock Number
LXRCJ6
Retail Price
149.99
Tower's Low Price
$54.98
Stock Status
(Estimated)
Late Dec

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Tech Notes
 
NOTES FROM OUR TECH DEPARTMENT
This is the Tower Hobbies .25 cu in (4.1cc) Car Engine with Pull Starter.

FEATURES

Dual ball bearing-supported crankshaft
ABC cylinder and liner construction-"A"luminum piston,"B"rass
cylinder liner that is "C"hrome plated
Slide Valve Carburetor
Purple anodized heatsink cylinder head
SG (pilot) type crankshaft
Two year limited warranty

INCLUDES

Tower Hobbies .25 cu in (4.1cc) Car Engine with Pull Starter, Glow
Plug, Exhaust Gasket and instruction sheet

REQUIRES Fuel: 2-cycle glow fuel with 20% nitromethane, 16% lubricant-
Most of the fuels we carry meet or exceed the lubricant content
required for optimum performance and maximum engine life. In the
past, the conventional lubricant content used in fuel was 18%. But
with new advanced technologies, fuels like Red Alert and O'Donnell
for example, have a better quality of lubricants even though the
percentages of lubricant content are lower. These high-tech
lubricants provide exceptional cooling and protection.
NOTE; Do not use a fuel with a nitro content higher than 20%

SPECIFICATIONS

Displacement: 4.11cc (.25 cu.in)
Bore: 17.94mm
Stroke: 16.4mm
Practical RPM: 3000 - 42000
Output: 2.5bhp/34000rpm
Weight: 13.2oz (374g)
Distance Between Mounting Holes Same Side: .83" (21mm)
Distance Between Mounting Holes Opposite Side: 1.4" (37mm)
Length from Starter to Front Bearing: 3.4" (86.8mm)
Height from bottom of Crankcase to top of Head: 3.9" (99mm)
Height from bottom of Mounting Tabs to top of Head: 3.3" (85mm)
Width of Mounting Tabs: 1.8" (44.8mm)
Diameter of Exhaust Outlet: .73" (18.5mm) including gasket

Carburetor Needle Settings-
High Speed Needle: Pre-set for break-in at 4 turns from closed,
set 2 - 3 turns from closed after break-in
Low Speed Needle: Pre-set 3 turns from closed break-in
Throttle Stop Screw: Approximately 1mm from fully closed
Mid range needle - Flush with the outside of the body

COMMENTS

Some notes on Slide Valve and Rotary Carburetors:
Rotary carbs offer a larger response in the middle of the power
band. This works well for off-road applications when throttle
response must be varied.
Slide Valve carbs provide greater response at the beginning and end
of the power band. This works well for on-road and racing
applications for fast take-offs and high speed.

jxs 03/14/07
ir/jxs

– If you need more information, use these Tower Hobbies resources –
Email: info@towerhobbies.com
Web Site: http://www.towerhobbies.com/
Phone: 217-398-8970
  Postal Address:
Tower Hobbies
PO BOX 9078
CHAMPAIGN, IL 61826

Click here for Units of Measure Conversion Calculators

Parts Compatibility
 
Parts Compatibility for Tower Hobbies TOWER .25 RC BB Car Engine
This item is a replacement part for the following:
 LXMPT0** Tower Hobbies Nitro TOWER Terror MT .25 RTR  (Parts List)

Accessories Needed
 
COMPLETION NOTES FROM THE TECH DEPARTMENT
THIS IS THE TOWER HOBBIES .25 CU IN (4.1CC) CAR ENGINE WITH PULL STARTER. FEATURES: ABC CYLINDER CONSTRUCTION, SLIDE VALVE CARB, DUAL BALL BEARING SUPPORTED CRANKSHAFT, SG (PILOT) CRANKSHAFT, PURPLE ANODIZED CYLINDER HEAD, GLOW PLUG AND EXHAUST GASKET REQUIRES: 20% NITRO FUEL, AIR FILTER, GLOW STARTER

Accessories for the Tower Hobbies TOWER .25 RC BB Car Engine

Primary Accessories   Building & Field Equipment Optional Accessories
 
  Special Stock Number Product Description Parts Saver Eligible Tower's
Low Price
Click to Order Quantity Needed In Cart? Stock
Status
 LXVH20 Duratrax Air Filter Oil 1.75 fl oz
Qty Discount Available
4.99   In Stock
 LXNEV5 Tower Hobbies Air Filter Set Terror MT
Add to Wish List
   Discontinued
 LXLN89 Tower Hobbies TOWER Power Glo-Starter Long w/o Meter
Qty Discount Available
10.99   In Stock
 LXRXC9 Tower Hobbies TOWER Power 20% Car Fuel Quart
Qty Discount Available
10.69   In Stock
Subtotal for this Group of Accessories: 34.26  
Click to Order all items listed in this Group of Accessories    Buy This group of Accessories

Primary Accessories   Building & Field Equipment Optional Accessories

 
Tower Hobbies Has Been Serving Hobbyists Since 1971 • Call 800-637-6050 or 217-398-3636
See Tower Hobbies Reviews at Bizrate.com
Hobbico, Hobby & Model Construction Supplies - Retail, Champaign, IL
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