Hot Singles ! - Pictures

[mbd29]

Attachment 433640

Maybe it's the Sunday start? Looks like first boat in lower left corner is Berghauer. I can't read the driver listing on the next boat (maybe someone can), the third Molinari is Cees. Then the pickle forks of #190 Seebold and #174 Pruett, followed by Simison, Peacock, Serra & Petty. I don't see the pickle forks of Renato or Hering in the picture. Both of them had flipped early Saturday, makes me think this must be Sunday. Regardless, it's a great picture.

Is the first boat Harold Eis?

[willabee]

Is the first boat Harold Eis?

Pretty sure it's Berghauer. It's hard to see, but the writing just under the windscreen appears to be the same as the writing in this pic .....

Plus, Eis flipped Thursday while testing in Parker. He took a pretty good hit and I don't think he raced at all that weekend.

[mbd29]

Pretty sure it's Berghauer. It's hard to see, but the writing just under the windscreen appears to be the same as the writing in this pic .....

Plus, Eis flipped Thursday while testing in Parker. He took a pretty good hit and I don't think he raced at all that weekend.

Sorry, I meant the first boat on the left with the red stripe.But if he flipped testing it can’t be him. I thought he flipped in the race.

[Watermark]

Pretty sure it's Berghauer. It's hard to see, but the writing just under the windscreen appears to be the same as the writing in this pic .....

Plus, Eis flipped Thursday while testing in Parker. He took a pretty good hit and I don't think he raced at all that weekend.

Berghauer confirmed.. good eye!

Here's a few more of that start:

One-two off the line were McConnell and Serra.

[FMP]

Super photos

[Watermark]

[FUJIMO]

[willabee]

Watermark, you sure have some great old stuff tucked away ..... thanks for sharing.

Speaking of old stuff ..... A couple of days ago I received, via email, a copy of a internal memo I had written 47 years ago while I was slaving away at Mercury Racing! It addresses what was required to convert a Twister to a Twister1.







The Twister motor, which was sold to the racing public in 1971, was built at the Fond du lac boathouse under the direction of Wayne Meyer. I believe there were two builds. The initial run of 100 sold out pretty quickly and another 50 were later produced. During the year, at Plt.38 in Oshkosh, engineering changes from Plt.6 Research were incorporated into the Twisters built by the racing team for their own use. Roy Rauchle, an engineer in Dick Lanpheer's group, was responsible for communicating most of these changes to the racing group.

Most of the changes tested proved beneficial and it was decided that Mercury would offer them in a new motor called the Twister 1 to be sold in 1972. However, this time there would be a build of just 50 complete motors. To comply with the APBA rule requiring 100 minimum units, 50 conversion kits would also be offered. These kits would allow the owner of a Twister to update for far less cost than a completely new motor.

Since the racing group was the only one that had worked with these changes, we were the most familiar with what was required for the conversion. I was asked to put a list together that included the parts, our cost and the approximate amount of time required to complete the update. I think they asked for the time required because they were considering offering to perform the update for those that wished to have it done rather than do it themselves. I don't remember if they ever did offer that option.The list I put together was converted into a bill of material and costed. That gave Meyer's group their list of what to put into the box for the conversion kit and established a selling price.

The question of what was in the conversion kit has been asked many times ..... now we have the answer.

[Tom Smyth]

I will take a few sets of decals at $6 each.... LOL

[FUJIMO]

[FUJIMO]

[FUJIMO]

[FUJIMO]

...and to think there was profit built into those prices.

[JP Love]

Imagine! Today's price .?.

[Raceman]

Watermark, you sure have some great old stuff tucked away ..... thanks for sharing.

Speaking of old stuff ..... A couple of days ago I received, via email, a copy of a internal memo I had written 47 years ago while I was slaving away at Mercury Racing! It addresses what was required to convert a Twister to a Twister1.

The Twister motor, which was sold to the racing public in 1971, was built at the Fond du lac boathouse under the direction of Wayne Meyer. I believe there were two builds. The initial run of 100 sold out pretty quickly and another 50 were later produced. During the year, at Plt.38 in Oshkosh, engineering changes from Plt.6 Research were incorporated into the Twisters built by the racing team for their own use. Roy Rauchle, an engineer in Dick Lanpheer's group, was responsible for communicating most of these changes to the racing group.

Most of the changes tested proved beneficial and it was decided that Mercury would offer them in a new motor called the Twister 1 to be sold in 1972. However, this time there would be a build of just 50 complete motors. To comply with the APBA rule requiring 100 minimum units, 50 conversion kits would also be offered. These kits would allow the owner of a Twister to update for far less cost than a completely new motor.

Since the racing group was the only one that had worked with these changes, we were the most familiar with what was required for the conversion. I was asked to put a list together that included the parts, our cost and the approximate amount of time required to complete the update. I think they asked for the time required because they were considering offering to perform the update for those that wished to have it done rather than do it themselves. I don't remember if they ever did offer that option.The list I put together was converted into a bill of material and costed. That gave Meyer's group their list of what to put into the box for the conversion kit and established a selling price.

The question of what was in the conversion kit has been asked many times ..... now we have the answer.

Thank you for posting this. It answers quite a few questions. The parts list does vary some from the kit I bought from a man in Idaho who'd had it still sealed in the factory box until I bought it sometime in the 90's or early 00's. In addition to the parts mentioned my kit included 6 new pistons, a new exhaust silo with other related parts and I'm pretty sure it also had new upper and lower cowls. There are so many bits and pieces that I didn't take the time to inventory mine and compare. Maybe one day soon I can lay it all out on a table and photograph it to add to this discussion.