Reply to thread

Message

<blockquote data-quote="CedarRiverScooter" data-source="post: 399120" data-attributes="member: 15465">Silver Bullet - I temp mounted my 600 &amp; ran a chain down to the impeller shaft, then on-trailer-tested at ramp.&nbsp; I thought you might want to hear about my findings.The 600cc (YZF600R) engine pulled fine, didn&#039;t have a tach but estimated by ear 7000 RPM (the pump&#039;s designed RPM).&nbsp; It was in high gear &amp; had some throttle left.&nbsp; Your 1000cc should pull even better.&nbsp; It started in-gear no problem (I didn&#039;t have the clutch hooked up).2 things are clear:1) The exhaust pipe (was high &amp; dry) was mega-radiating heat.&nbsp; Fabbing a wet-exhaust is definitely the next key step.&nbsp; If I can&#039;t make something safe for under deck, then the whole concept is dead. 2) I found the jet pump&#039;s cooling water didn&#039;t start flowing until about 2K RPM.&nbsp; Part of that might be that the engine was mounted above deck (up high temporarily).&nbsp; But I think your design of wet/wet cooler is the way to go so that the engine never runs empty of coolant.&nbsp; &nbsp; So I may be copying your design <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite1" alt=":)" title="Smile&nbsp; &nbsp; :)" loading="lazy" data-shortname=":)" />.Good luck on your build!</blockquote>

[QUOTE="CedarRiverScooter, post: 399120, member: 15465"] Silver Bullet - I temp mounted my 600 & ran a chain down to the impeller shaft, then on-trailer-tested at ramp. I thought you might want to hear about my findings. The 600cc (YZF600R) engine pulled fine, didn't have a tach but estimated by ear 7000 RPM (the pump's designed RPM). It was in high gear & had some throttle left. Your 1000cc should pull even better. It started in-gear no problem (I didn't have the clutch hooked up). 2 things are clear: 1) The exhaust pipe (was high & dry) was mega-radiating heat. Fabbing a wet-exhaust is definitely the next key step. If I can't make something safe for under deck, then the whole concept is dead. 2) I found the jet pump's cooling water didn't start flowing until about 2K RPM. Part of that might be that the engine was mounted above deck (up high temporarily). But I think your design of wet/wet cooler is the way to go so that the engine never runs empty of coolant. So I may be copying your design :). Good luck on your build! [/QUOTE]

Verification

Reply to thread

Help Support TinBoats.net: