OB Madness

[Jerry Wyss]

There's a new girl in school,,and She's Perdy

Bad picture of her though

 

[Jerry Dunlap]

O.k., it's an O.S. what?

JD

 

[Jerry Wyss]

O.k., it's an O.S. what?

JD

****, I knew it was a bad picture ,,,,Oh, its' a OS 30VG on the TT underwear.

Glad to see your ok Jer

 

[Jerry Dunlap]

Well, that would make an interesting 40 Mod engine.

JD

 

[user 115]

Well, that would make an interesting 40 Mod engine.

JD

True.. But nice looking lower unit.

Charley

 

[Joe Reese]

I really like that head setup. I was just on the phone today about a new head button. What did that come off of, really what engine? Hot Damm!

 

[Jerry Wyss]

I really like that head setup. I was just on the phone today about a new head button. What did that come off of, really what engine? Hot Damm!

The sad thing Joe is that beautiful blue head gets cut down to the bottom 2 or 3 fins

Thats the engine the head came on ,,O.S. 30 car/ truck engine.

 

[Joe Reese]

No really, what motor did that come off of ? This IMPBA like the rule MODIFYED.

 

[Jerry Wyss]

NAMBA 7.5 Mod-tunnel, as far as I know,,I was going to run it in club races "Open Tunnel" originally.

Whatever the rules say in District races too if it's successful.

You think that's sumthin', there's a member on this site that could go "All In" on this one, fer sure

He may show ya,,,,

 

[Tonymods]

Whao!

Good job Jerry. That must be fast! I suppose you had some hard work on the PTO to adapt this engine?

Tony

 

[Jerry Wyss]

Whao!

Good job Jerry. That must be fast! I suppose you had some hard work on the PTO to adapt this engine?

Tony

Hi Tony

I don't know how fast yet,,I gotta run the timing #'s to see what else I can get away with,

such as raising the liner , which really needs to be done since the piston skirt is only .012

away from the TT PTO bearing.

Rod Geraghty and David Hall did the PTO and fitting of everything. The carb had to be replaced

with one that had a 15mm neck and 9mm bore. The only one I could find was a O.S. Hanno II,

a carb for a 60 size pattern airplane engine,,thats gonna be fun to adjust :blink:

 

[MalaysianFlyer]

AWESOME!!!!!!

Nice piece of work Jerry. Been waiting to see it since you mentioned it.

 

[Joe Reese]

WOW

 

[Jerry Wyss]

Pulsetech, I looked all thru OS home Page "engines" and "carb" section

and the problem was they didn't have a listing of "neck" and "bore" sizes

on all of them,,,that made it a little difficult to find the right one.

Funny thing is they had one listed for a 90 airplane engine that read

"If you use this carb, you're on your own",, :lol:

that really cracked me up,, that is actually written there.

 

[Geraghty]

OPPS!

 

[Geraghty]

You think that's sumthin', there's a member on this site that could go "All In" on this one, fer sure

He may show ya,,,,

From the GPRC "skunkwurks"

A "quick-change" gearbox for an assault on the "A" SAW record.

 

[Geraghty]

RE: the last post.........

As soon as I can free up some space I will post the photo of the gearboxed IMPBA "A" [.12CI-2.5CC] SAW boat rigged and ready to go.

It ships out today to Alabama to David Hall for testing and set-up for the SAW trials in Huntsville in April.

This is just a good start....more to come,which we will share with you later,from the GPRC "skunkwurks".

 

[Ronald van Essen]

And I thought this year was the year of pipes and props then the GEARBOX shows up on outboards....

Interesting..

Ronald.

 

[MalaysianFlyer]

Holy .......

What kind of gear ratio you running on that??

 

[Geraghty]

Holy .......

What kind of gear ratio you running on that??

1.33/1....or......1.42/1 .......or..... 1.50/1......your choice! B) B)