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Drag Racing and a 36hp unlimited class
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joe h.
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PostPosted: Wed Jun 27, 2007 9:31 pm    Post subject: Reply with quote

I have also heard that theory about the Okrasa spiral oil coolers.
This is why I purchased this...

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It is a Behr oil cooler from a 356. more surface area, and a better design.
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joe h.
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PostPosted: Wed Jun 27, 2007 9:35 pm    Post subject: Reply with quote

Here is a good thread on Behr coolers.
http://www.thesamba.com/vw/forum/viewtopic.php?t=234510&highlight=behr
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PostPosted: Fri Jun 29, 2007 8:47 am    Post subject: Reply with quote

joe h. wrote:
Here is a good thread on Behr coolers.
http://www.thesamba.com/vw/forum/viewtopic.php?t=234510&highlight=behr


Although not knowing much about those Behr Coolers I did find an EMPI ad for them as you'll see in that thread and below. It's interesting to note from that ad that they made a cooler specifically to fit the 36hp case.
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Am I right in assuming fitting a 356 cooler of the same period in not a simple bolt on operation for the 36hp.

Where did you find that Behr cooler Joe...was it difficult to source or are they still available?
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joe h.
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PostPosted: Fri Jun 29, 2007 10:09 pm    Post subject: Reply with quote

Quote:
Am I right in assuming fitting a 356 cooler of the same period in not a simple bolt on operation for the 36hp.

Where did you find that Behr cooler Joe...was it difficult to source or are they still available?


I believe it will bolt right up. The only size difference is, it's about half an inch taller. I think there is room in the shroud, I'll have to check that. Think

I found it right here on The Samba. (thanks Ev!)
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bvilletom
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PostPosted: Tue Jul 03, 2007 4:53 pm    Post subject: BruKrasa 36hp singleport heads Reply with quote

After about a year and a half of work, I finally found the combination of modifications to make the 36 HP heads flow. After much R&D, grinding in the wrong places, testing and grinding more, I have worked out a whole system from combustion chamber to carburetor entrance that out flows the Okrasa set.

The plan is to make a Land Speed Challenge attempt with this "Brukrasa" head system on my 1378 cc (74x77) 1956 VW engine. We are trying to break the 94.40 MPH VW Okrasa sedan record of Ellis/Gosvig set at Bonneville in 1962.

I'll follow up this email with additional photos of the heads and manifolds. This file is the description of my process.

Bville Tom Bruch

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tommy-turtle
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PostPosted: Tue Jul 03, 2007 10:12 pm    Post subject: Re: BruKrasa 36hp singleport heads Reply with quote

bvilletom wrote:
After about a year and a half of work, I finally found the combination of modifications to make the 36 HP heads flow. After much R&D, grinding in the wrong places, testing and grinding more, I have worked out a whole system from combustion chamber to carburetor entrance that out flows the Okrasa set.


Tom

One of the questions I was wondering is what valve springs are you going to be using for these heads? I have looked at many Possabilities from B series honda springs (Dual spring setup that would require clearancing the valve guide boss) to morris minor 1200 valve springs. Also just wondering if you were planning on usings Pre A style lifters to help with your motor.
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bvilletom
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PostPosted: Wed Jul 04, 2007 8:47 am    Post subject: Reply with quote

Using brand new 36hp valve springs shimmed about 1.5mm and it gives 60+ lbs seat pressure. I tried the BMC 1200 inners and outter dual springs and they are too stiff. Running an engine similar to this now that turns 6k rpm with used stock shimmed springs. The lifter design does not tollerate extreme spring pressures.

Bville Tom
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thomaskaefer
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PostPosted: Tue Jul 17, 2007 3:10 pm    Post subject: Oldspeed-Register 1/4 Meile /mile BESTLIST!!!!! Reply with quote

Hello everybody!

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Now the time of waiting is over! Your chance to see what youre engine would do in comparison to the others!

Download your confirmation of participation today to be part of the worldwide bestlist for period style performance cars!

I would like to invite you to my blog http://oldspeed-register.blogspot.com/ to see what you have to do for an participation!

Best regards

Thomas
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nsracing
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PostPosted: Fri Jul 20, 2007 11:26 am    Post subject: Reply with quote

Can I play too? Very Happy

This could be an interesting hobby for the winter months.

I see 36hp cases all the time at swaps but never really paid them much attention to them.

This is something I could definitely get into. Nice engines fellas.
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thomaskaefer
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PostPosted: Fri Jul 20, 2007 5:45 pm    Post subject: Reply with quote

Youīre welcome!!!!!

I think that you can build a real nice engine for sure..... but what counts for a top place in Oldspeed-Register Bestlist is the ET!!!!

Download participation and send me your results!


Regards

Thomas
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commercial air
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PostPosted: Fri Jul 20, 2007 10:37 pm    Post subject: Reply with quote

What about buses?? Is there a class for them? Or am I the only one itchin' for vintage speed in a TII?

Chris
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thomaskaefer
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PostPosted: Sun Jul 22, 2007 6:16 am    Post subject: Reply with quote

Hi Chris!

The car is not the thing! If you`re in vintage-speed you are really wecome too!

In fact, you have to build a real strong engine to get one of the first places Wink !

Iīm interested in your car, where can I see it?

Regards

Thomas
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commercial air
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PostPosted: Mon Jul 23, 2007 8:28 am    Post subject: Reply with quote

Thomas, I'm still in the building stage. So, no pics of the complete engine yet.

Here's the build specs:

Late 36 case, Rimco align bore, deck, and full flow
72 mm Demello full circle crank
Stage 2 cam from Matthew Kinney
77.5 mm P&C's
Rebuilt stock rods
K-Roc ported and polished heads(stock valves)
Full weight stock flywheel
Stock pressure plate and disk
Berg deep sump and linkage
Dual 28 PCI's with custom choke linkage
WOB stainless exhaust and Okrasa cooler
Fram oil filter

All of this for my '56 kombi. Should have lots of torque.

Chris
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thomaskaefer
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PostPosted: Tue Jul 24, 2007 4:28 am    Post subject: Drag Racing and a 36hp unlimited class Reply with quote

Chris!

If that isnīt nice i donīt know! Should be a great combination of parts to get a little "monster" - and there canīt be torque enough!!!!!

It would be a pleasure for me if you keep me updated with your complete projekt! It should be shown to the other hot guys all around the world at Oldspeed-Register!

Regards

Thomas
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bvilletom
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PostPosted: Thu Jul 26, 2007 6:33 pm    Post subject: Oldspeed-Register 1/4 mile times Reply with quote

I started some research on 1.4 mile times for 36hp cars from old publications and ads.

If someone has Okrasa 1/4 mile times from the old days I'd be interested in them for comparison sake.

23.2 @ 59mph - Stock 36hp sedan, 1957 Road & Track test -
19.8 @ 62mph - Judson Sedan , 1957 Road & Track test -
18.99 @ 66.9mph - Bruch/Schlabaugh 1957 sedan at Maxton NC
2005 LSR trials. 1500cc single carb stock-appearing motor. This 1.4 mile time was while it was setting a national standing mile record.

BVille Tom.

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bvilletom
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PostPosted: Mon Aug 06, 2007 6:06 pm    Post subject: Reply with quote

Well I finally got it finished and in Gaylen Anderson's very clean VW Bug. It feels smooth and very responsive. It is fun to drive and hear, even with the muffler on. We are planning to go to Cordova Dragway the 19th for a day of test & tune.

This is a modern re-creation of the 50 year old Okrasa 36hp with more stroke, more compression, more header, and more airflow.

The plan is to go landspeed racing in the fall. We are leaving Friday to go to the Bonneville Nationals Speed Trials just to spectate and see all the latest LSR tricks. I'll have an engine build sheet ready when I get back.


B'Ville Tom.


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Towel Rail
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PostPosted: Wed Aug 15, 2007 12:04 am    Post subject: Reply with quote

Well, how was Bonneville? Smile

(BTW, I'm in Cedar Rapids, too. I'd love to see your build(s) sometime.)
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James D
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PostPosted: Thu Sep 13, 2007 3:33 am    Post subject: Reply with quote

So whats the verdict on the Behr 356 oil cooler? Is it a direct bolt on for a 36hp VW motor or was that an aftermarket part shown above?
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Bengt H
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PostPosted: Fri Sep 14, 2007 12:35 am    Post subject: Reply with quote

Yes its a bolt on, just check that you get the correct sice of the rubber seals.
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James D
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PostPosted: Mon Sep 17, 2007 3:49 am    Post subject: Reply with quote

Bengt H wrote:
Yes its a bolt on, just check that you get the correct sice of the rubber seals.


Thanks! Actually, I also meant to ask what year/s of 356 coolers will work on a 36hp VW?
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