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Author Topic: CB750 Wet Sump Conversion - Sumpthing  (Read 85706 times)

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Offline voxonda

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Re: CB750 Wet Sump Conversion - Sumpthing
« Reply #100 on: February 28, 2018, 12:00:07 PM »
Anyone knows how can I put on pic's without using Photobucket?

Cheers, Rob
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Offline slikwilli420

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Re: CB750 Wet Sump Conversion - Sumpthing
« Reply #101 on: February 28, 2018, 12:06:59 PM »
Quote from: voxonda on February 28, 2018, 12:00:07 PM
Anyone knows how can I put on pic's without using Photobucket?

Cheers, Rob

If they are small enough you can just add as attachment using the "plus" sign below the reply window. I like using Google Photos via the little Mona Lisa button above the reply window.
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All you gotta do is do what you gotta do.

Vintage Speed Parts Mashup: http://forums.sohc4.net/index.php?topic=133638.0
Rickman CR Parts Kit Refresh: http://forums.sohc4.net/index.php/topic,154837.0.html
AHRMA CB750 Racer: http://forums.sohc4.net/index.php/topic,158461.0.html
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'76F CB750 Patina Redemption: http://forums.sohc4.net/index.php/topic,174871.0.html

Offline Rocketman

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Re: CB750 Wet Sump Conversion - Sumpthing
« Reply #102 on: February 28, 2018, 12:09:10 PM »
I'm using Blogger with good success. 

https://www.blogger.com/about/?r=1-null_user


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Offline slikwilli420

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Re: CB750 Wet Sump Conversion - Sumpthing
« Reply #103 on: February 28, 2018, 12:14:14 PM »
Quote from: Rocketman on February 28, 2018, 12:09:10 PM
I'm using Blogger with good success. 

https://www.blogger.com/about/?r=1-null_user

The "earn money" portion seems interesting. If I am doing it anyway, might as well get a little something.
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All you gotta do is do what you gotta do.

Vintage Speed Parts Mashup: http://forums.sohc4.net/index.php?topic=133638.0
Rickman CR Parts Kit Refresh: http://forums.sohc4.net/index.php/topic,154837.0.html
AHRMA CB750 Racer: http://forums.sohc4.net/index.php/topic,158461.0.html
AHRMA Superbike Heavyweight Racer: http://forums.sohc4.net/index.php/topic,173120.0.html
'76F CB750 Patina Redemption: http://forums.sohc4.net/index.php/topic,174871.0.html

Offline voxonda

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Re: CB750 Wet Sump Conversion - Sumpthing
« Reply #104 on: February 28, 2018, 03:06:56 PM »
Quote from: voxonda on February 28, 2018, 12:00:07 PM
Anyone knows how can I put on pic's without using Photobucket?

Cheers, Rob

Test, and it works! Thanks George and the rest of the bunch.

Cleaning out and sorting out oil pumps.
« Last Edit: February 28, 2018, 03:13:45 PM by voxonda »
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Offline kmb69

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Re: CB750 Wet Sump Conversion - Sumpthing
« Reply #105 on: February 28, 2018, 03:13:58 PM »
Maybe a little off subject - maybe not.
Does anybody know why Honda slowed the oil pumps down, changed the gear ratio, on their DOHC factory road racers?  ???

Nevermind, I found it. A trochoid type pump experiences "cavitation" above a certain RPM depending on the design of the inlet/outlet ports and the rotors.
« Last Edit: February 28, 2018, 05:27:30 PM by kmb69 »
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Offline gschuld

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Re: CB750 Wet Sump Conversion - Sumpthing
« Reply #106 on: February 28, 2018, 03:17:37 PM »
That PM I sent was purely selfish.  I’ve REALLY enjoyed the photos you’ve posted in the past and we all benefit from you posting more in the future.  ;)

George
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Offline Captain

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Re: CB750 Wet Sump Conversion - Sumpthing
« Reply #107 on: February 28, 2018, 11:00:31 PM »
Quote from: kmb69 on February 28, 2018, 03:13:58 PM
Maybe a little off subject - maybe not.
Does anybody know why Honda slowed the oil pumps down, changed the gear ratio, on their DOHC factory road racers?  ???

Nevermind, I found it. A trochoid type pump experiences "cavitation" above a certain RPM depending on the design of the inlet/outlet ports and the rotors.


 Which is why I "ported" the supply line oil fitting into the pump , used the biggest bore Kevlar tube and smooth bend AN fittings............... Made a difference.

 Captain
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Offline 63SSRagtop

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Re: CB750 Wet Sump Conversion - Sumpthing
« Reply #108 on: February 28, 2018, 11:50:48 PM »
Got the sump in today, I like it! Can’t wait to get the motor on a stand and start detailing.. thanks Bert!
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Offline voxonda

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Re: CB750 Wet Sump Conversion - Sumpthing
« Reply #109 on: March 01, 2018, 01:12:25 AM »
Quote from: 63SSRagtop on February 28, 2018, 11:50:48 PM
Got the sump in today, I like it! Can’t wait to get the motor on a stand and start detailing.. thanks Bert!

Things look GOOD! Have fun.
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Offline voxonda

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Re: CB750 Wet Sump Conversion - Sumpthing
« Reply #110 on: March 01, 2018, 01:15:08 AM »
Selected and thoroughly cleaned parts for the oilpump. Now polishing the rotors, clean again and assemble with new o-rings.
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Offline voxonda

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Re: CB750 Wet Sump Conversion - Sumpthing
« Reply #111 on: March 01, 2018, 02:17:24 PM »
Selected a bigger oilcooler to work with the wet sump, and designed a bracket for it.

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Offline Tintop

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Re: CB750 Wet Sump Conversion - Sumpthing
« Reply #112 on: March 01, 2018, 03:26:58 PM »
Quote from: voxonda on March 01, 2018, 02:17:24 PM
Selected a bigger oilcooler to work with the wet sump, and designed a bracket for it.

Be interesting to know what temp. differential (if any) between dry & wet with your previous cooler Rob. 
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Offline simon#42

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Re: CB750 Wet Sump Conversion - Sumpthing
« Reply #113 on: March 02, 2018, 10:20:08 AM »
Quote from: voxonda on March 01, 2018, 02:17:24 PM
Selected a bigger oilcooler to work with the wet sump, and designed a bracket for it.



as we have already been told the oil temp is up to 20 degrees cooler why the larger cooler ?
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Offline voxonda

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Re: CB750 Wet Sump Conversion - Sumpthing
« Reply #114 on: March 02, 2018, 11:14:48 AM »
I did not tell you...........havent tested yet, just made sure to have three different coolersizes to use on track if necessary. As soon as I can test it I know where we stand in this for sure.
And I know, that you surely know, riding around town is different than racing a 3hour race.
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Offline simon#42

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Re: CB750 Wet Sump Conversion - Sumpthing
« Reply #115 on: March 02, 2018, 01:34:11 PM »
no you didnt rob it was the person who designed it, made it and possibly even tested it .
good luck with your tests i will watch with interest
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Offline dragracer

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Re: CB750 Wet Sump Conversion - Sumpthing
« Reply #116 on: March 02, 2018, 08:51:41 PM »
If the price was not out of my budget range, I would certainly buy this for my drag bike project. Ditching the weight of the oil tank and freeing up space would be a bonus.  Of course ground clearance could be a concern.
« Last Edit: March 03, 2018, 06:00:13 AM by dragracer »
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Offline kmb69

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Re: CB750 Wet Sump Conversion - Sumpthing
« Reply #117 on: March 03, 2018, 07:21:28 AM »
They have a "discount coupon" option at checkout. Are SOHC 4 Forum members being offered a discount?
Are these kits now on the shelf, readily available for shipping?
I'm thinking about using one for my engine run-in stand.
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Offline gschuld

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Re: CB750 Wet Sump Conversion - Sumpthing
« Reply #118 on: March 03, 2018, 07:30:16 AM »
That would simplify things🧐

Just sent you a PM and email BTW Kieth👍

George
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Offline voxonda

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Re: CB750 Wet Sump Conversion - Sumpthing
« Reply #119 on: March 03, 2018, 11:55:10 AM »
Ok, things get serious. Med BJ today, a very nice young Dutch bloke and very serious about his job. We spoke about the project and we split up even more enthousiast than before. Got the sump and need to get me some new springs and valve for the pump, to get things organised to assemble..
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Offline Bert Jan

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Re: CB750 Wet Sump Conversion - Sumpthing
« Reply #120 on: March 03, 2018, 01:03:16 PM »
Quote from: kmb69 on March 03, 2018, 07:21:28 AM
They have a "discount coupon" option at checkout. Are SOHC 4 Forum members being offered a discount?
Are these kits now on the shelf, readily available for shipping?
I'm thinking about using one for my engine run-in stand.

Hi, to answer those questions..
Virtually every webshop has a 'discount coupon' option. You can buy a cheque through the webshop in case you need a present for a birthday or sumpthing (see what i did there ;) )
The code provided to you after purchase can be typed in the 'coupon' area to get the cheque's worth's discount.

We offered a EU 50,- discount until March 1st. The kit is now the regular price of 499,-
We provided that discount to the first fast few, as a "thank you for your trust" thing. Other than that, it seemed logically marketingwise to make an introduction offer.
So in short, sorry, no discounts at this time.

The kits are expensive to produce. We don't have the funds (as stated on BOTH websites..) to put 100 kits on the shelves. Kits a produced in small quantities. Ofcourse, all starts are hard so the initial delivery time was not met on the first batch, for which i'm really sorry. The first kits are landing on doorsteps as we speak so we're getting the hang of it. At this particular time, we're 2 kits short to order in a new batch. That's no marketing blabla, it's just how it is.
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Offline Bert Jan

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Re: CB750 Wet Sump Conversion - Sumpthing
« Reply #121 on: March 03, 2018, 01:04:09 PM »
Quote from: 63SSRagtop on February 28, 2018, 11:50:48 PM
Got the sump in today, I like it! Can’t wait to get the motor on a stand and start detailing.. thanks Bert!

SWEEEET! Please post some pics once the kit is installed?
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Offline Bert Jan

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Re: CB750 Wet Sump Conversion - Sumpthing
« Reply #122 on: March 03, 2018, 01:06:58 PM »
Quote from: voxonda on March 03, 2018, 11:55:10 AM
Ok, things get serious. Med BJ today, a very nice young Dutch bloke and very serious about his job. We spoke about the project and we split up even more enthousiast than before. Got the sump and need to get me some new springs and valve for the pump, to get things organised to assemble..

Thanks Rob, absolutely likewise! I'm honored that the kit is going to get tested on such a beautiful machine!
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Offline dragracer

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Re: CB750 Wet Sump Conversion - Sumpthing
« Reply #123 on: March 03, 2018, 04:56:04 PM »
The chopper guys would probably be glad to get their hands on one of these. No more hassles with locating the oil tank on the frame with extended lines. It would give a much cleaner look.

Stick with what you're doing. Sometimes this forum can be brutal when in my opinion its just not necessary.
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Offline gschuld

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Re: CB750 Wet Sump Conversion - Sumpthing
« Reply #124 on: March 03, 2018, 06:12:05 PM »
Quote from: dragracer on March 03, 2018, 04:56:04 PM
The chopper guys would probably be glad to get their hands on one of these. No more hassles with locating the oil tank on the frame with extended lines. It would give a much cleaner look.

Stick with what you're doing. Sometimes this forum can be brutal when in my opinion its just not necessary.

Agreed👍

George
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