TO DRILL OR NOT TO DRILL................SORC UPDATE

[Matt Dagostino]

The SORC voted to allow drilling the existing inlet hole in lieu of the "cool tool" by a vote of 7 to 4 with a couple of abstentions. Several of the SORC members argued the Cool Tool would lead to extreme tucking and new boat designs and that drilling would not. That argument seemed to win the day. It appears the SORC may be posting drilling instructions soon as it is a somewhat delicate process as the water pipe is copper and you must be careful not to over drill as you could cause irreversible damage. Also you have to be careful to maintain the proper angle and radius. Sooooo, don't just go out and start hogging it out until you do your homework.

The Cool Team is happy that we created awareness and helped in being part of getting something done to potentially help all Yamato Products! Yes, all Yamato engines are approved for drilling . Models 80, 102, 302 and 321

Thanks to all that helped get something done ...............stay cool in 2017!

[bill hoctor]

The SORC voted to allow drilling the existing inlet hole in lieu of the "cool tool" by a vote of 7 to 4 with a couple of abstentions. Several of the SORC members argued the Cool Tool would lead to extreme tucking and new boat designs and that drilling would not. That argument seemed to win the day. It appears the SORC may be posting drilling instructions soon as it is a somewhat delicate process as the water pipe is copper and you must be careful not to over drill as you could cause irreversible damage. Also you have to be careful to maintain the proper angle and radius. Sooooo, don't just go out and start hogging it out until you do your homework.

The Cool Team is happy that we created awareness and helped in being part of getting something done to potentially help all Yamato Products! Yes, all Yamato engines are approved for drilling . Models 80, 102, 302 and 321

Thanks to all that helped get something done ...............stay cool in 2017!

YOUR WELCOME !

[14J]

The SORC voted to allow drilling the existing inlet hole in lieu of the "cool tool" by a vote of 7 to 4 with a couple of abstentions. Several of the SORC members argued the Cool Tool would lead to extreme tucking and new boat designs and that drilling would not. That argument seemed to win the day. It appears the SORC may be posting drilling instructions soon as it is a somewhat delicate process as the water pipe is copper and you must be careful not to over drill as you could cause irreversible damage. Also you have to be careful to maintain the proper angle and radius. Sooooo, don't just go out and start hogging it out until you do your homework.

The Cool Team is happy that we created awareness and helped in being part of getting something done to potentially help all Yamato Products! Yes, all Yamato engines are approved for drilling . Models 80, 102, 302 and 321

Thanks to all that helped get something done ...............stay cool in 2017!

Matt do you know if the PRO committee adopted this change?

[Matt Dagostino]

Troy..............no idea . We are at the beach rollerblading.............you should be here. 70 and sunny........

[Ericwienczak]

Is this rule approved for 300ssh as wel?

[Matt Dagostino]

I confirmed with Commissioner Yarno today that it is NOT permissible to drill out the inlet hole in the 300ssh class as approved for the other classes with the chamfer. It must remain stock for 300ssh. However check the revised rule for max inlet hole diameter just passed. You may be able to blueprint just the inlet hole diameter and just not alter the chamfer............. check with your commissioner for clarification.

[Ericwienczak]

Thanks matt

[stockc]

Bill,

Can you facilitate getting the Florida testing results posted for all to see? This could help in determining the "degree" of THANK YOU's needed.

I appreciate any and all efforts of everyone involved in attempting to solve this ridiculous problem.

Ken

[pav225]

I thought drilling to .31 and the chamfer was approved for all Yamato classes. Not true??

[Matt Dagostino]

Mike...........i am sure in 300ssh you can't chamfer per the SORC vote. However you maybe able to increase the size of the inlet hole for the 300ssh to meet the spec for max diameter??? Everyone's head is still spinning a bit out here.

[pav225]

Thanks Matt.

[Ram4x4]

So, if you can't drill and chamfer a sealed 321 for 300SSH, is it permissable to pull the foot off and put on one that is drilled and chamfered in order to run in CSH at 3/4"?

[Shane_B]

Unfortunately the pickup hole is in the tower, not the foot... so you'd need another tower with a drilled out/reamed water pickup

[DeanFHobart]

"Someone" needs to write an instruction tip sheet as to exactly how to do this. Especially for someone doing it by hand vs doing it on a Bridgeport. For sure you need to get a drill bit diameter chart and buy the drill bits that are in between the current diameter and .310" ...... And do it step by step with small diameter increases. The instructions also need to have pictures. Also, you might want to grind off the drill bit tip so it would not touch the copper tube. And, put tape on the drill bit as a guide so you don't go too deep. We need to know the maximum depth so the damage is not done. This is why an instruction tip sheet is needed.

[Big Don]

Dean, I agree someone or several, will drill to deep and go right into the copper tube. Be careful when doing this. It does not sound as if it's too difficult, but you definitely want to be careful.

[14J]

Any news out of the pro category on this subject? We race OSY in region 1 and I'd like to know if I'm now faced with having to change towers between OSY and CSH heats. Almost makes a guy want to buy a C Mod conversion kit and call it a day.

[Racerkyle20]

Well for Kpro and OSY the pro category uses the Stock tech manual. So whatever is legal in stock is legal in pro for those classes, besides height limits.

Pro was concerned about the Cool tool being legal in OSY because OSY has no actual height limit. But when the stocks did not pass this, the pros adjourned their meeting.

So to answer your question did pro doing anything with the .310 diameter in their rules? No. But again based on the stock tech manual, this should be legal in pro as well.

[canoecty]

Troy....you're welcome in C Mod any time! Dave

[j hydro racer]

Troy you race? Welcome back out of retirement.

[guedo499]

Extra Clarification.

Per Steve Greaves, Inspector:

"If a Yamato motor meets specs in CSH/R then it is legal in PRO OSY400. So yes the enlarged chamfered water inlet is legal in OSY when legal in Stock. There is a statement in the PRO Tech Manual for OSY that says if there are any differences in motor specs between CSH/R and OSY the CSH/R specs will prevail."

[Ericwienczak]

My question is why isnt this rule approved for 300? if the purpose of 300 is to bring in new drivers and help promote our sport then why are we going to restrict all the new drivers to 300ssh?(unless they want to put out $$ for a second motor) this surely isnt a way to promote affordable racing. I understand that the cooling issues dont exist in 300, but how are we going to push rookies to run multiple classes and then break the news that their new 321 motor is only good for one class (unless they want to burn up motors getting seat time)


321 owners have 1 of 2 options, drill it and be restricted to csh and 20. Or leave it and be restricted to 300ssh.

Drilling in 300 wont improve performance, and will give new guys a chance at the coveted seat time everyone aways talks about


Let them drill

[hoosier]

Eric If you want some more seat time , come see me at the races and I'll let you use my 102 if I'm not running C .

[Ericwienczak]

Thanks thats a really nice offer, fortunately for me we bought a 302 and a 321 and i ran csh all year long. I am speaking out for those who have purchased a new 321 and dont have or want to spend the money on another motor.

Just trying to help our sport out is all

[90M]

I have to agree with Eric. I have only one motor for two drivers. So who does not get to race. We also had the problem of our motor overheating in 300. So if we do not get to drill we will have another problem.
Larry Klein

[Ram4x4]

How was the allowable hole size determined?

John, according to Matt's post above, he was told by Commissioner Yarno that 300 is not allowed to drill and chamfer.

[Matt Dagostino]

I stated i believe it would be legal to 'drill' but not chamfer per the SORC vote! The blueprinting rule is now out of the grey area and will be clear to all members on Page 73. The 300ssh hydro committee met privately friday night to discuss these clarifications along with some other housekeeping matters. Consult your 300ssh committee members for details.