OS Outboard Question

[Tim leyde]

Is a V2 (air cooled) OS sleeve and piston the same as a V1(water cooled)? Asking because at Tower a V2 is $15 more...

TL

 

[Tim leyde]

Dang, now I see a V2 connecting rod is $50, V1 is $22...

 

[Jerry Dunlap]

Dang, now I see a V2 connecting rod is $50, V1 is $22...

Buy the VI parts. Other than the head and muffler, the VI & VII are the same engine.

JD

 

[Kris Flynn]

the V2 rod is a 'better' rod...they are from the higher end car engines

 

[BradSpencer]

The crank is different to

 

[Jerry Dunlap]

the V2 rod is a 'better' rod...they are from the higher end car engines

I don't think I've ever broken a rod in any of my O.S. 21 OBs and I've probably been running them as long as anyone on this forum.

JD

 

[Jerry Dunlap]

The crank is different to

How is it different?

JD

 

[dave roach]

Jerry

Your not turning any RPM'S if you haven't broken a rod.

Dvae

 

[Jerry Dunlap]

Jerry

Your not turning any RPM'S if you haven't broken a rod.

Dvae

My engines are all NAMBA stock. I've heard IMPBA Sport 20 Tunnel engines turning a whole lot more Rs than my "Stocker." More Rs = more stress on the rod.

I don't think I've ever seen a rod break in any of the stock engines raced in NAMBA 20 Stock Tunnel. I don't think Grim has ever broken a rod. Once again, his engines are stock. Maybe guys racing stock O.S. 21s have broken rods, I just haven't seen it during my racing endeavors.

JD

 

[BradSpencer]

The crank is different to

How is it different?

JD

The V1 crank has a lube feed hole on the crank pin leading to the inside of the crank shaft.. The V2 does not.

The OS car engines went away from the lube hole on the crank pin years ago.

 

[Grimracer]

Won lots of races.. never broke a OS rod!

Grim

 

[Tim leyde]

Thanks guys, I'll just get the cheaper parts.

TL

 

[Kris Flynn]

Mongar motor that did many gallons split the bottom end of the rod...small crack

I find it hard to justify double the price for the newer one

 

[stan simpson iv]

I want a B-Sport like Brandon Atwell's. At the Herb Stewart race,that boy drove that boat like he was PISSED OFF at ALL of you guy's. I was truly impressed with his driving the Tri-Oval.