Bergfelt Racing Enterprises, LLC
4412 W. 6th Avenue
Beaver Falls, PA 15010-1915
U.S.A.
(724) 462-7440
info@bergfeltracing.com

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C-50/51 Engine Services

Comer Logo

Pair of Comers

At Bergfelt Racing Enterprises, LLC we can supply, re-build, and blueprint, 50cc Comer engines and tune them on our dynomometer. We can also give your Comer 50cc engine our Outlaw treatment for competition on tracks with very loose rules.


Dyno Sheet

Basic Rebuild

 

This is just what you may need if your engine is not running quite as well as it used to.

This service consists of disassembly of the engine, inspection of all parts, service and replace parts as needed, precision assembly and test run and tune on our dyno.

Labor $215.00 PLUS PARTS and shipping.

 

Blueprint with Rebuild

This may be just what you need to become more competitive. This is the same preparation process that has been used on our engines that have had podium finishes at the Kid Kart Nationals.

When blueprinting we will rebuild your engine in such a way as to get the maximum performance allowable by the rule book. The treatment includes everything done in the basic rebuild plus, we will check and corret crankshaft alignment, machine the crankcase so that the deck is parallel to the centerline of the crankshaft, and our complete bag of legal tricks.

Labor $270.00 PLUS PARTS and shipping.



If your track or club does not use WKA rules, please supply us with the rules that you are using so that we can study them and build you the best engine possible under your rule set. Kid kart rules are different everywhere.

 

Rebuild with our Outlaw Treatment

Comer with pipe on Dynamometer

We suggest this treatment for competing on tracks
with very loose rules, or no rules at all. If there is no tech, this is what you need.


We forget about the rule book for this one but when done the engine still looks completely stock on the outside .This includes everything that we do in our other
rebuilds but we also cut the clutch shoes for a higher stall speed for faster pick-up,we do alot of reshaping of the ports, cut and true the cylinder base for maximum compression, a little trick on the intake, bore the carburetor throat, re-jet the carburetor to compliment higher air flow through the engine, cut down the flywheel fins, lighten the piston for quicker and higher revs as well as faster warm up plus a few other items that we prefer to keep to ourself.


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We simply apply some of the technology that we have developed in our Unlimited
class engines to the 50cc Comer.

Labor $390.00 PLUS PARTS
Please call for turn around time.

All Out Open Comer

for experienced and older drivers

Open C-51

 

The picture on the left shows an engine that we experimented with. It put out just a tick under 5 peak horsepower in our dyno tests. The testing was done with a Tillotson carburetor and an RLV tuned exhaust pipe. Presently we have plans to develop our own tuned pipe.

This type of modification is for experienced drivers who are ready to go faster. Some driving coaches like to use a more powerful engine for practice purposes and may want to consider modifications like this. This engine set-up may also be an alternative transition class for 7 and 8 year old drivers who still fit well in a kid kart.

This is a new thing that we are experimenting with and still don't have fixed pricing figured out for this type of custom work. Call or email us if your are interested in doing something like this.

 

Other Services and Trick Items

We are hesitant to list these services and items because too many racers will just start buying the single "hot" item that they think will solve their particular problem or propel them to the front. Kart racing does not work that way. The real trick is to make sure ALL of the basics are spot on and to tune and match things up so that every part of the kart is working in harmony with the other parts...including the driver. Please call with your particular challenge so that we can help you solve it in the most practical way without wasting your money on things you don't really need.

Ignition coils

 

 

Frequently Requested Shop Service Items

Blueprint your SHA carburetor to WKA/KKN specs... $30

Build your Carburetor to Outlaw Specs.....$60.00

Stock SHA carburetor.....$78.23

Blueprinted Carburetor, comes with 54, 55, 56, 57 and 58 jets.....$128

Blueprinted carburetor with only 1 jet.....$108

Outlaw Carburetor (not recommended for use with a restrictor) comes with 5 extra jets, sizes depend upon the application.... $158.00

Dynamometer tuning...$60/hour. 1 hour minimum.

Outlaw Clutch Preparation (labor only), cut, balance and assemble (springs extra...specify restricted or unrestricted).....$35.00

Install new high tension lead on Comer ignition coil, includes labor and wire....$29.00

Machine crankcase deck to be parallel to the centerline of the crankshaft, labor only....$75.00

 


On all engine services, please call for our current turn-around time. Please note that from the end of April to the end of June our shop is incredibly busy and long delays should be expected. Think ahead and get your engine work done in the fall or eary winter.

 

Notes About Engine Blueprinting

Here's my take on our blueprinted engines. Unless requested otherwise, I build my "blueprinted" engines to be LEGAL at the Kid Kart Nationals. This is the strictest kid kart engine rule set that I am aware of. I will never make claims like "our blueprinted engines are the quickest, or are hand picked from select serial numbers" or anything like that. What we do is build a solid engine that goes right up to the limits without going over them. They are engines that a competent technical inspector will do a thorough inspection on and still pass. They are meant to be a solid foundation for a kid kart race team. To be successful with these engines the racer will have to learn to tune the engine for varying atmospheric conditions (To help with that read this.) The racer also needs to realize that everything on the kart must be aligned and set-up right to compliment the engine.

One might think that all they need to be "legal" is buy a new engine, take it out of the box and assume it's ok. The truth is, there is very good chance that the engine is not legal according to the rules. In the past year, almost every new engine that I have built had at least one technical inspection item that would not have passed a legitimate inspection. There are a lot of good running "legal" engines being beat by engines that are coming right out of the box. There is probably nothing wrong with the legal engines but there is a really good chance that the combustion chamber cc are too low, and igniton timing too advanced, items that make a huge difference, in those engines that have not been blueprinted.


Josh Wins

Josh Bergfelt was a winner in his CRG Bambino kid kart. He is sporting a driving suit from Azusa Josh Bergfelt was sporting a Vega Helmet, Kart Racewear gloves and neck collar.
All of these items are available from Bergfelt Racing Enterprises. Ask for a price quote for anything for kid kart racing.



Bergfelt Racing Enterprises is the only source that you need for the kid kart class. We offer parts and accessories that will keep just about any brand of Kid Kart, or any other kart for that matter, on the race track and running fast. Please contact us for all of your kid kard needs.

 

 

Comer Parts

Yes, we do sell Comer Engine Parts.

Please call or e-mail to order. We prefer to offer parts in that way so that we can provide you with personal service and expert advice.

Click here to view exploded view of the Comer C50 engine.

Call 724-462-7440 or e-mail info@bergfeltracing.com

 

 

 

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Bergfelt Racing Enterprises, LLC
4412 W. 6th Ave.
Beaver Falls, PA 15010-1915
724.462.7440
email: info@bergfeltracing.com

This page was last updated on 2/18/2016