ATP Relocates; Open for Business

ATP Racing Engines has relocated and reestablished its successful ATV engine building shop in central Florida. ATP is back to what it does best: Building engines and supporting quad racers.

After the company’s abrupt move in late February 2010 many believed ATP had closed. While it did take several months to restore operations, ATP is indeed very much intact and thrilled to be working on engines again for ATV racers and riding enthusiasts! ATP Racing Engines has taken an unscheduled hiatus from the AMA ATV MX Nationals this season to repurchase several essential pieces of machinery. ATP now has the majority of the engine machining capabilities that were available prior to leaving its location in northern Florida.

“It has come to my attention that many people are still unaware that we are in business," ATP CEO Mike Walker said. "Apparently there are still many rumors surrounding my company’s status and I want to reassure all of my customers and potential customers that we are up and running and taking in work daily.”

That being said, ATP has decided to offer reintroductory pricing that is well below both the company and industry standards. These budget build prices will be available for a limited time on many engine services such as competition Serdi valve jobs and complete engine tear down and reassembly. For example, all single cylinder 4-stroke head porting is priced at $300.00. This is the same race proven, high quality and high performance work that has always been offered by ATP! Again this is only for a limited time.

ATP Racing Engines, Inc has also opened a new eBay store featuring many of their custom engine components as well as several OEM parts that dealers typically don't have in stock.

ATP is currently accepting racer resumes for the 2011 race season!

You can contact ATP Racing Engines, Inc with any parts or service inquiries at the address and phone listed below:

ATP Racing Engines, Inc

230 Hatteras Ave

Clermont, FL 34711

Office phone: 407-703-3901

email: atpracing36@yahoo.com

Read more about ATP Racing Engines by clicking on the links below:

ATV.com: TPR Yamaha YFZ450R Project
ATP builds engine for TPR Project YFZ450R

ATP temporarily closes, plans to reopen

ATP leads charge on Yamaha motocross project

If you build it...

ATP powers the TPR project YFZ450R

We are go for lift-off! ATP Racing Engines has completed the engine work for the TPR project YFZ450R motocross quad, and this engine rips!

We picked up the TPR project YFZ450R from ATP at this past weekend's Unadilla ATV motocross national, where several ATP riders were pulling holeshots and winning motos during the two-day event. ATP Racing Engines powers several winning riders who currently are in contention for championships in the ITP/Moose Racing AMA ATV Motocross nationals.

The engine mods for the TPR project YFZ450R started with multiple dyno runs for the stock quad. Straight from the factory, the new YFZ450R put 44 horspower to the rear wheels on the ATP dyno.

Mike Walker, the owner of ATP Racing Engines, said the initial dyno runs determined how the bike was modified.

“Once we’re pretty much in the ballpark and we see where the power’s going to end up, we’ll change the camshaft degree, we’ll change a lot of different things,” Walker said.

All great engines start with a good piston, and ATP installed a high-compression, 13.5:1 JE piston in the TPR project quad.

Next, ATP began to port and polish the head and modify the valve seats with the aid of a $50,000 Serdi flow machine.

"A Serdi machine is one of your upper level seat and guide machines," Walker said. "It’s where we pick up air flow, low-lift numbers. Most of your valve job work will improve your low-lift air flow numbers, which, will in turn translate to seat of the pants for a rider, better throttle response and initial hit, things of that nature."

The stock valves and springs were retained for the build.

Two aftermarket camshafts were used in the build. ATP starts with OEM camshafts from 2004-2005 model year YFZ450s and re-degrees the cams for more duration and lift. The re-degrees are based on extensive dyno testing.

ATP then installed our full Motoworks SR4 exhaust system, Motoworks FMI and Twin-Air Power Flow intake system before heading back to the dyno.

ATP produced an additional 8 horsepower from the TPR project YFZ450R without pushing the limits of the engine components. At 52 horsepower, our project 2009 Yamaha YFZ450R provides a tremendous amount of usable power.

Walker said the Motoworks SR4 exhaust and FMI tuner are easy to install and work with for the average rider or racer, yet they provide power capable of winning national races.

"The Motoworks tuner is a great tuner for your average guy," Walker said. "It’s very easy to install, very easy to work with. The pipe was a great installation on the bike and an easy fit."

To learn more about ATP Racing Engines products and modifications, check them out online at http://www.atpracingengines.com/