Racing exhaust for laker 49 OMC

[Tim Kurcz]

For lakers and river runners: Finally, a bolt-on high performance exhaust system for your 49.9 OMC loop triple. This new design replaces the long runner “sandwich plate” type, and features short, Mod-50 style interconnects to enable high RPM use. Designed for the factory powerhead adapter without modifications. It’s water cooled and will fit underneath the existing cowl. Images are the casting pattern mockup. Finished system will have provision for the starter solenoid

The kit will include all parts, fasteners, and gaskets. Taking orders now for spring 2012 kit. Please PM if interested. Thanks,

Tim

[Fast Fred]

, i needs one.

[88workcar]

Are the production ones going to made out of treated lumber? I think that in the wet conditions that would be a better choice for the duration.

[rustnrot]

Are the production ones going to made out of treated lumber? I think that in the wet conditions that would be a better choice for the duration.

HA! I doubt it, that chip board is there for a reason. When it gets wet, it expands, that's why they call it an EXPANSION chamber!

[OUTBOARDER]

For lakers and river runners: Finally, a bolt-on high performance exhaust system for your 49.9 OMC loop triple. This new design replaces the long runner “sandwich plate” type, and features short, Mod-50 style interconnects to enable high RPM use. Designed for the factory powerhead adapter without modifications. It’s water cooled and will fit underneath the existing cowl. Images are the casting pattern mockup. Finished system will have provision for the starter solenoid

The kit will include all parts, fasteners, and gaskets. Taking orders now for spring 2012 kit. Please PM if interested. Thanks,

Tim

am interested in adapting bolt on chamber for hydro racing and
adapting under base plate for out the side of 15" mid " smackdown racing "

[Fastjeff57]

What will the insides look like?

Jeff

[marchettih2o]

Agree with Jeff...also, What performance gains have you calculated or better yet, actuals?

Thanks, George

[Fast Fred]

[michael]

Will this fit under the cowl and inside the lower pan or would they need to be modified?
Looks similar to what Nydahl created decades ago

[Tim Kurcz]

Thanks for writing. This is the first time I've heard of the Nydahl system you mention - have never seen one to be sure! If anybody has one of these, images, or performance experience please contact me.

The only reason I patterned this was at the request of river racer friends frustrated with the RPM limitations of the factory system. The plan is to make it a bolt-on mod that will fit under the cowl and offer Mod-50 style short interconnects. I've got facrory Mod-50 systems to emulate.

Anyway, if five racers commit on/before Feb 15, the project will be developed in time for spring 2012 deliveries. Estimated kit price is $450 plus shipping.

Thanks to all of you that have PM'd. Please be patient, I'll be in touch with you soon.

Tim