Sponson span

[Bill Eilers]

I wouldn’t worry much about a super slight CG change, you may would want to move your turnfin a little though. It’s location versus CG is more critical than the CG versus sponson ride pad location. With some mods, your big block .91 will be consistently faster than 67/80’s. How did the OPS 1.2 hold up for you ?

It's way! Fwd. Was built around an ops 1.2 drum eng.same case as there 80

 

[Bill Eilers]

Looks like the trend in f. Is a 91. Bigger boat to pound thru the holes. Surgery to get that 91 back. I'm guessing an inch or a bit more

 

[Bill Eilers]

I always felt that 80's were dogs... they never seemed to RPM as hard as the .67's.
And if you were dealing with a heavy hull, it made sense to go to a .91....


Just my .02,, I know my twin rigger ran faster on .67's than .80's and throttle response was always nice and crisp with the 67's.

80's do seem to work well in a mono though, can pull a little more prop, and has better torque out of the corner..

Thanks for the reply. Gotta f rigger, cg way. Fwd. With a 91rs in it. Would be easier to inst smaller motor than move 91 back. Originally built around an ops 1.2 drum eng. But seams trend is a bigger boat to handle rough race water

 

[Bill Eilers]

It's way! Fwd. Was built around an ops 1.2 drum eng.same case as there 80

The motor ran good. Never raced it in a real f heat. Case screws loosened up. Not ops's falt! Operater never gave it a retorque after 1st run. Can run my other with/ ops 91 black head big block, don't want to hurry the cmb build

 

[Bill Eilers]

Cg correction. Starting with a little extra weight where it needs it .added 1/4 in to transom.

 

[Wasted wages]

Let me know if you ever want to part with that Black OPS big block. I have a couple NIB and a few used ones... I'm always looking for more!

 

[Bill Eilers]

Let me know if you ever want to part with that Black OPS big block. I have a couple NIB and a few used ones... I'm always looking for more!

Ok but it's oily but still tight on top. Damn thing swings a big prop don't it?

 

[Wasted wages]

Yup ... they do!!!

 

[Bill Eilers]

Yup ... they do!!!

Hope this finds you and yous well. Do you have piston and sleeve for the ectopic. Model ops 67. Needle bng rod ect.

 

[Wasted wages]

Not sure,,, I have to dig thru some stuff I have..Are you needing those parts ?

I know I have some vintage ops .65
parts and motors. Not sure about .67 parts .

 

[Bill Eilers]

Yes need piston and sleeve. For the newer. 67

 

[Bill Eilers]

Well hopefully it gets wet this weekend. Narrowed it up. And brought radio gear back

 

[Bill Eilers]

Not sure,,, I have to dig thru some stuff I have..Are you needing those parts ?

I know I have some vintage ops .65
parts and motors. Not sure about .67 parts .

Still looking for that big block ops 91

 

[Wasted wages]

Always !!

Shoot me a PM....let's talk.

 

[Bill Eilers]

Always !!

Shoot me a PM....let's talk.

I'm computer ilerit. What's a pm

 

[Wasted wages]

Private message.. click on the little envelope at the top of your page..