RC Car Engines

This mount is needed to install an engine into a DBXL or MTXL with our billet crankcase.

<p><span style="color: #ff0000;"><strong>An aftermarket filter is recommended for install in a DBXL!</strong></span></p> <p><strong>This engine now comes with a TR/OBR billet crankcase at no extra cost.Every long block or engine is now CNC ported and hand finished. CNC porting and hand finishing is all done in-house by the OBR staff. We do not contract out any of our porting so every engine is modified to our exact specifications. We are able to offer higher accuracy this way as well as more power. Our CNC machine has allowed us to take our porting to the next level due to us being able to do cylinder work that is not possible to do by hand.</strong></p> <p><strong>For the advanced user only!!!!</strong> If you're new to these engines start off with something mild like a Prostock and work your way up.&nbsp;<span>Every long block or engine is now CNC ported and hand finished. CNC porting and hand finishing is all done in-house by the OBR staff. We do not contract out any of our porting so every engine is modified to our exact specifications. We are able to offer higher accuracy this way as well as more power. Our CNC machine has allowed us to take our porting to the next level due to us being able to do cylinder work that is not possible to do by hand.</span></p> <p><a title="http://www.youtube.com/watch?v=mb8vPi0Vys8" href="http://www.youtube.com/watch?v=mb8vPi0Vys8" target="_blank">Click here to see this engine in action</a></p> <p>Our newest line of methanol/nitrous oxide reeds are now available. You have the option of choosing fuel (gas/methanol) and adding nitrous oxide. We've built a lot of fast engines over the years and this line is hands down faster than anything we've ever built.</p> <p>Being full mods these engines will be fully ported just like our normal reed engines but modified to withstand methanol and nitrous oxide. There is going to be pro's and con's to running methanol. Methanol produces quite a bit more power than gas and from our testing runs about 80 degrees cooler. The big con to methanol is that the engine needs to be purged at the end of running for the day. This requires that you dump the methanol in your tank and run gas through the engine for a couple of minutes. A special shreadstack has been designed to make this as easy as possible and to allow a gas carb to be run on methanol. This stack is included when choosing the methanol version and makes running this fuel a breeze. We've perfected these engines to the point that they are easy to start, tune and purge.&nbsp;</p> <p>Our last option for this engine is nitrous oxide. We offer the option of having the engine modified to withstand nitrous oxide. From our extensive testing with nitrous oxide we've found modifications that greatly reduce the chance of engine failure while using nitrous oxide. Each nitrous oxide engine will come with detailed instruction on how to use nitrous oxide. There are certain rpm's etc. that will make nitrous oxide shine and not be as hard on the engine.&nbsp;</p> <p>This engine comes with a limited warranty. Using nitrous oxide at the wrong rpm's, too much etc will cause short engine life and will not be covered by us.&nbsp;</p>

<p><span style="color: #ff0000;">An aftermarket filter is recommended for install in a DBXL!</span></p> <p><strong>This engine now comes with a TR/OBR billet crankcase at no extra cost.Every long block or engine is now CNC ported and hand finished. CNC porting and hand finishing is all done in-house by the OBR staff. We do not contract out any of our porting so every engine is modified to our exact specifications. We are able to offer higher accuracy this way as well as more power. Our CNC machine has allowed us to take our porting to the next level due to us being able to do cylinder work that is not possible to do by hand.</strong></p> <p><strong>For the advanced user only!!!!</strong> If you're new to these engines start off with something mild like a Prostock and work your way up.</p> <p><a title="http://www.youtube.com/watch?v=mb8vPi0Vys8" href="http://www.youtube.com/watch?v=mb8vPi0Vys8" target="_blank">Click here to see this engine in action</a></p> <p>Our newest line of methanol/nitrous oxide reeds are now available. You have the option of choosing fuel (gas/methanol) and adding nitrous oxide<br />. We've built a lot of fast engines over the years and this line is hands down faster than anything we've ever built.</p> <p>Being full mods these engines will be fully ported just like our normal reed engines but modified to withstand methanol and nitrous oxide. There is going to be pro's and con's to running methanol. Methanol produces quite a bit more power than gas and from our testing runs about 80 degrees cooler. The big con to methanol is that the engine needs to be purged at the end of running for the day. This requires that you dump the methanol in your tank and run gas through the engine for a couple of minutes. A special shreadstack has been designed to make this as easy as possible and to allow a gas carb to be run on methanol. This stack is included when choosing the methanol version and makes running this fuel a breeze. We've perfected these engines to the point that they are easy to start, tune and purge.&nbsp;</p> <p>Our last option for this engine is nitrous oxide. We offer the option of having the engine modified to withstand nitrous oxide. From our extensive testing with nitrous oxide&nbsp;we've found modifications that greatly reduce the chance of engine failure while using nitrous oxide. Each nitrous oxide&nbsp;engine will come with detailed instruction on how to use nitrous oxide. There are certain rpm's etc. that will make nitrous oxide&nbsp;shine and not be as hard on the engine.&nbsp;</p> <p>This engine comes with a limited warranty. Using nitrous oxide&nbsp;at the wrong rpm's, too much etc will cause short engine life and will not be covered by us.&nbsp;</p>

<p>This long block now comes with a TR/OBR billet crankcase at no extra cost.<span>Every long block or engine is now CNC ported and hand finished. CNC porting and hand finishing is all done in-house by the OBR staff. We do not contract out any of our porting so every engine is modified to our exact specifications. We are able to offer higher accuracy this way as well as more power. Our CNC machine has allowed us to take our porting to the next level due to us being able to do cylinder work that is not possible to do by hand.</span></p> <p>PROSTOCK - An affordable/mild version of a full mod. The PROSTOCK's are rated at 5-5.5hp, full mod's 6-6.5hp, and full mod long rods 7-7.5hp. <span style="color: #ff0000;">We guarantee performance of this engine to be as much if not more than similary priced ported engines.&nbsp;</span></p> <p>The PROSTOCK line has replaced the Race Ported line. The PROSTOCK engines produce more power than the race ports and are more economical.</p> <p>To keep costs down, we focused our time tuning this engine to the areas that would yield the most power possible while maintaining reliability and ease of use. At OBR, we do not believe in stacking or using thick cylinder gaskets. We always machine and reshape the combustion chamber on our stroked engines. To help with reliability, we also relieve the piston. Piston reliefs help reduce the chances of the piston seizing on the exhaust side of the cylinder when running lean or hot. We were the first in this industry to do the piston relief several years ago.</p> <p>Being that this line is a budget/starter engine, we tuned it to run well with any exhaust. We kept in mind that you may not have a pipe. We have seen great performance with everything from an HPI can exhaust to a pipe. If upgrading to a pipe, we recommend the Jetpro Boss. For those of you that are new to ported engines, we shot for ease of use. This engine is very easy to start and to tune the carb.&nbsp;</p> <p>We have left the porting open on this engine. At any time, you may send the engine in to us to be upgraded to a full mod or a full mod long rod.</p>

<div class="std"> <p>Full Mod -&nbsp;Our top of the line long blocks.&nbsp;</p> <p>The 29.5cc is a great all around performing long block and can be used for most applications. The big bore 36mm top end with a 1mm stuffed crank is a great balance of torque and rpms.&nbsp;</p> <p>This isn't your run of the mill quick and dirty garage port job. The staff at OBR has over 20 years combined experience tuning engines. We know how to get the job done right the first time with out breaking the bank.&nbsp;</p> <p>To start we machine the combustion chamber for a proper squish clearance and compression ratio. We learned a long time ago that stacking and/or using thicker &nbsp;cylinder gaskets does not make power.&nbsp;From there the cylinder and piston are aggresively modified but not to the point where reliability and ease of use is lost. Reliability and ease of use is always our first objective when we tune an engine. Every port in the cylinder has been professionaly modified and the piston has been lightened and relieved.&nbsp;</p> <p>&nbsp;</p> <p>&nbsp;<br />This long block fits:</p> <p>Off-road Rc Cars: HPI Baja 5B/5T/5SC, MCD, Rampage, FG Marder, FG Marder Race, FG Monster Beetle, FG Monster Beetle Pro,FG MT5,FG Stadium Truck, Duratrax Firehammer, Carson Attack, Smartech Traveller,FG Leopard, XTM, Leopard Race, FG Leopard STX, FG Marder Beetle, FG Pajero and most other large scale cars.</p> <p><br />On-road Rc Cars: MCD, FG Evo,FG Sportline, HARM,FG F-1 Competition and most other large scale onroad cars.</p> </div>

This engine now comes with a TR/OBR billet crankcase at no extra cost. Every long block or engine is now CNC ported and hand finished. CNC porting and hand finishing is all done in-house by the OBR staff. We do not contract out any of our porting so every engine is modified to our exact specifications. We are able to offer higher accuracy this way as well as more power. Our CNC machine has allowed us to take our porting to the next level due to us being able to do cylinder work that is not possible to do by hand.

The 29.5cc is a great all around performing engine and can be used for most applications. The big bore 36mm top end with a 1mm stuffed crank is a great balance of torque and rpms. 

This isn't your run of the mill quick and dirty garage port job. The staff at OBR has over 20 years combined experience tuning engines. We know how to get the job done right the first time with out breaking the bank. 

To start we machine the combustion chamber for a proper squish clearance and compression ratio. We learned a long time ago that stacking and/or using thicker  cylinder gaskets does not make power. From there the cylinder and piston are aggresively modified but not to the point where reliability and ease of use is lost. Reliability and ease of use is always our first objective when we tune an engine. Every port in the cylinder has been professionaly modified and the piston has been lightened and relieved. 

 
This engine fits:

* Tech Note: Installation in an HPI Baja requires that the stock Zenoah clutch be modified for a direct bolt up. Or the clutch from your stock fuelie 23/26 can be installed on this engine for a direct bolt up. The last option is a TR/OBR sealed clutch housing. The sealed clutch housing can be used with a machined CY clutch plate for a direct bolt up.

Off-road Rc Cars: HPI Baja 5B/5T/5SC, MCD, Rampage, FG Marder, FG Marder Race, FG Monster Beetle, FG Monster Beetle Pro,FG MT5,FG Stadium Truck, Duratrax Firehammer, Carson Attack, Smartech Traveller,FG Leopard, XTM, Leopard Race, FG Leopard STX, FG Marder Beetle, FG Pajero and most other large scale cars.

On-road Rc Cars: MCD, FG Evo,FG Sportline, HARM,FG F-1 Competition and most other large scale onroad cars.

<p>OBR premier full mod G270RC race engine. This engine has been fully modified to produce as much power as possible while staying compliant with EFRA tuning rules. While producing a lot of power we've designed to keep the power smooth and usable. Engine works well in both 2WD &amp; 4WD on and off-road.&nbsp;</p>

<p>This engine is sent out with a standard Zenoah crankcase unless you request our billet case. Reason being our billet case does not fit most on-road cars and this engine is designed for competition on-road use.&nbsp;</p> <p>Every long block or engine is now CNC ported and hand finished. CNC porting and hand finishing is all done in-house by the OBR staff. We do not contract out any of our porting so every engine is modified to our exact specifications. We are able to offer higher accuracy this way as well as more power. Our CNC machine has allowed us to take our porting to the next level due to us being able to do cylinder work that is not possible to do by hand.</p> <p>This is a brand new fully modified track ported Yuji Edition Zenoah G240RC engine. This engine is built specifically for 1/5 scale on road racing and will run a full race on one tank of gas. The Yuji Edition G240RC is built to be very smooth and high reving for track use. This engine fits: Contrast, FG, RS5, Harm, etc.&nbsp;This engine comes with a standard Zenoah crankcase unless billet is requested. Our billet case does not fit some on-road cars. Contact us if you are not sure which crankcase will be compatible with your car.</p> <p>*Not recommended for HPI Baja use.</p>

<div class="std"> <div class="std"> <p>This engine now comes with a TR/OBR billet crankcase at no extra cost.Every long block or engine is now CNC ported and hand finished. CNC porting and hand finishing is all done in-house by the OBR staff. We do not contract out any of our porting so every engine is modified to our exact specifications. We are able to offer higher accuracy this way as well as more power. Our CNC machine has allowed us to take our porting to the next level due to us being able to do cylinder work that is not possible to do by hand.</p> <p>Full Mod -&nbsp;Our top of the line engines.</p> <p>Check out our YouTube channel to see our engines in action: <a href="http://www.youtube.com/user/oneillbrothersracing">http://www.youtube.com/user/oneillbrothersracing</a>&nbsp;</p> <p>Our full mod engine line has proven to be the most&nbsp;popular engines we build.&nbsp;With the higher reliability of the&nbsp;4 bolt Zenoah engines we were able to&nbsp;achieve more power with out sacrificing reliability. We put all of the knowledge that we have picked up from years of dyno and field testing and came up with a monster. To start we completely tear down the engines and&nbsp;perform the following modifications:</p> <p><br />1. Deck cylinder to raise compression without using a thinner cylinder gasket<br />2. Reshape piston <br />3. Lighten piston <br />4. Relieve&nbsp;piston to prevent seizes&nbsp;<br />5. Modify intake port for better flow <br />6. Adjust intake&nbsp;duration to our specs <br />7. Resurface all ports <br />8. Modify transfer ports for better flow <br />9. Enlarge and reshape exhaust port <br />10. Adjust exhaust&nbsp;duration to our specs <br />11. Remove stock crank and install stuffed crank<br />12. Install all new gaskets and c-clips when engine is assembled <br />13. Re-bevel all porting and stock bevels to prevent damage to the piston and/or cylinder</p> <p>&nbsp;<br />This engine fits:</p> <p><br />* Tech Note: Installation in an HPI Baja requires that the stock Zenoah clutch be modified for a direct bolt up. Or the clutch from your stock fuelie 23/26 can be installed on this engine for a direct bolt up. The last option is a TR/OBR sealed clutch housing. The sealed clutch housing can be used with a machined CY clutch plate for a direct bolt up.</p> <p>Off-road Rc Cars: HPI Baja 5B/5T/5SC, MCD, Rampage, FG Marder, FG Marder Race, FG Monster Beetle, FG Monster Beetle Pro,FG MT5,FG Stadium Truck, Duratrax Firehammer, Carson Attack, Smartech Traveller,FG Leopard, XTM, Leopard Race, FG Leopard STX, FG Marder Beetle, FG Pajero and most other large scale cars.</p> <p><br />On-road Rc Cars: MCD, FG Evo,FG Sportline, HARM,FG F-1 Competition and most other large scale onroad cars.</p> </div> </div>

<p>This is a brand new full mod Zenoah 4 Bolt 28.5cc G290RC long block. This is a great way to pick up a full mod 4 bolt engine and save some cash. To use this long block you will need a flywheel, coil, covers, carb, clutch. All of these items can be removed from your stock engine and installed on this long block. Our long block comes with a complete 4 bolt Zenoah crank case with bearings and seals, stuffed crank, full mod top end. All long blocks come assembled as shown in the picture. With the higher reliability of these new 4 bolt Zenoah engines we were able to get more power with out sacrificing reliability. We put all of the knowledge that we have picked up from years of dyno and field testing and came up with a monster. The following port work has been done:</p> <p>1. Deck cylinder for higher compression with out using a thinner base gasket<br />2. Reshape piston<br />3. Lighten piston<br />4. Relieve piston to prevent seizing<br />5. Modify intake port for better flow<br />6. Adjust intake duration to our specs<br />7. Resurface all ports<br />8. Modify transfer ports for better flow<br />9. Enlarge and reshape exhaust port<br />10. Adjust exhaust duration to our specs<br />11. Re-bevel all porting and stock bevels to prevent damage to the piston and/or cylinder.</p>

<div class="std"> <p>Full Mod -&nbsp;Our top of the line engines.</p> <p>Check out our YouTube channel to view most of our engines in action:&nbsp;&nbsp;<a href="http://www.youtube.com/user/oneillbrothersracing">http://www.youtube.com/user/oneillbrothersracing</a>&nbsp;</p> <p><span style="color: #ff0000;">Customers Rides:&nbsp;</span><a href="http://www.youtube.com/watch?v=47s-3MNiZXE&amp;feature=email">http://www.youtube.com/watch?v=47s-3MNiZXE&amp;feature=email</a></p> <p>The full mod 27.2cccc has proven to be one of&nbsp;the most&nbsp;popular engines we build. This is a great way to&nbsp;upgrade to a full mod&nbsp;4 bolt&nbsp;engine and save some cash. To&nbsp;complete this long block you will need a flywheel, coil, covers, carb and&nbsp;clutch. All of thse items can be removed from your stock engine. Our long blocks come with a complete 4 bolt Zenoah crankcase with bearings, seals, stuffed 2mm stroker&nbsp;crank and&nbsp;full mod top end. All long blocks come assembled as shown in the picture.&nbsp;&nbsp;</p> <p>With the higher reliability of the&nbsp;4 bolt Zenoah engines we were able to&nbsp;achieve more power with out sacrificing reliability. We put all of the knowledge that we have picked up from years of dyno and field testing and came up with a monster.</p> <p>The following porting and machined has been performed to this long block:</p> <p><br />1. Machine combustion chamber for a proper squish clearance without stacking cylinder&nbsp;gaskets<br />2. Reshape piston <br />3. Lighten piston <br />4. Relieve&nbsp;piston to prevent seizes&nbsp;<br />5. Modify intake port for better flow <br />6. Adjust intake&nbsp;duration to our specs <br />7. Resurface all ports <br />8. Modify transfer ports for better flow <br />9. Enlarge and reshape exhaust port <br />10. Adjust exhaust&nbsp;duration to our specs <br />11. Re-bevel all porting and stock bevels to prevent damage to the piston and/or cylinder</p> <p>&nbsp;<br />This long block fits:</p> <p>Off-road Rc Cars: HPI Baja 5B/5T/5SC, MCD, Rampage, FG Marder, FG Marder Race, FG Monster Beetle, FG Monster Beetle Pro,FG MT5,FG Stadium Truck, Duratrax Firehammer, Carson Attack, Smartech Traveller,FG Leopard, XTM, Leopard Race, FG Leopard STX, FG Marder Beetle, FG Pajero and most other large scale cars.</p> <p><br />On-road Rc Cars: MCD, FG Evo,FG Sportline, HARM,FG F-1 Competition and most other large scale onroad cars.</p> </div>

<p>This long block now comes with a TR/OBR billet crankcase at no extra cost.<span>Every long block or engine is now CNC ported and hand finished. CNC porting and hand finishing is all done in-house by the OBR staff. We do not contract out any of our porting so every engine is modified to our exact specifications. We are able to offer higher accuracy this way as well as more power. Our CNC machine has allowed us to take our porting to the next level due to us being able to do cylinder work that is not possible to do by hand.</span></p> <p>PROSTOCK - An affordable/mild version of a full mod. The PROSTOCK's are rated at 5-5.5hp, full mod's 6-6.5hp, and full mod long rods 7-7.5hp. <span style="color: #ff0000;">We guarantee performance of this engine to be as much if not more than similary priced ported engines.&nbsp;</span></p> <p>The PROSTOCK line has replaced the Race Ported line. The PROSTOCK engines produce more power than the race ports and are more economical.</p> <p>To keep costs down, we focused our time tuning this engine to the areas that would yield the most power possible while maintaining reliability and ease of use. At OBR, we do not believe in stacking or using thick cylinder gaskets. We always machine and reshape the combustion chamber on our stroked engines. To help with reliability, we also relieve the piston. Piston reliefs help reduce the chances of the piston seizing on the exhaust side of the cylinder when running lean or hot. We were the first in this industry to do the piston relief several years ago.</p> <p>Being that this line is a budget/starter engine, we tuned it to run well with any exhaust. We kept in mind that you may not have a pipe. We have seen great performance with everything from an HPI can exhaust to a pipe. If upgrading to a pipe, we recommend the Jetpro Boss. For those of you that are new to ported engines, we shot for ease of use. This engine is very easy to start and to tune the carb.&nbsp;</p> <p>We have left the porting open on this engine. At any time, you may send the engine in to us to be upgraded to a full mod or a full mod long rod.</p>

<p>Every long block or engine is now CNC ported and hand finished. CNC porting and hand finishing is all done in-house by the OBR staff. We do not contract out any of our porting so every engine is modified to our exact specifications. We are able to offer higher accuracy this way as well as more power. Our CNC machine has allowed us to take our porting to the next level due to us being able to do cylinder work that is not possible to do by hand.</p> <p>This is a brand new prostock ported Zenoah 4 Bolt G290RC 28.5cc long block. This long block features the brand new TR/OBR billet crankcase and produces over 5hp and revs over 19,000 rpm's.&nbsp;</p> <p>PROSTOCK - An affordable/mild version of a full mod. The PROSTOCK's are rated at 5-5.5hp, full mod's 6-6.5hp, and full mod long rods 7-7.5hp.&nbsp;<span>We guarantee performance of this engine to be as much if not more than similary priced ported engines.&nbsp;</span></p> <p>The PROSTOCK line has replaced the Race Ported line. The PROSTOCK engines produce more power than the race ports and are more economical.</p> <p>To keep costs down, we focused our time tuning this engine to the areas that would yield the most power possible while maintaining reliability and ease of use. At OBR, we do not believe in stacking or using thick cylinder gaskets. We always machine and reshape the combustion chamber on our stroked engines. To help with reliability, we also relieve the piston. Piston reliefs help reduce the chances of the piston seizing on the exhaust side of the cylinder when running lean or hot. We were the first in this industry to do the piston relief several years ago.</p> <p>Being that this line is a budget/starter engine, we tuned it to run well with any exhaust. We kept in mind that you may not have a pipe. We have seen great performance with everything from an HPI can exhaust to a pipe. For those of you that are new to ported engines, we shot for ease of use. This engine is very easy to start and to tune the carb.&nbsp;</p> <p>We have left the porting open on this engine. At any time, you may send the engine in to us to be upgraded to a full mod or a full mod long rod.</p>

Billet delrin version is now available and is half the weight of the aluminum version. OBR power stack is compatible with most aftermarket clamp on air filters. This is a bolt on performance item that will improve power on any engine that's stock or fully modified. We spent several months developing this stack on our in-house flow bench and dyno. We've seen more power out of this design than any other stack that we have tested. Dyno graph can be found in the images. Tapered bore increases velocity through the intake tract and gives better consistency. The clamping surface has barbs to prevent the air filters from falling off under hard running. There is no boss on this stack which allows the air filter to be pushed closer to the carb for cars that have minimal air filter clearance.