36 Rocker Art

grueni · Posted: Tue Nov 24, 2009 4:38 am Post subject:

nice to see my milling cutter run. and also nice to see my ratio-style become popular. next step is the ovali-medusa rocker shaft Wink

lets see what the german folks can do for vintage speed. Shocked

keep on andi

blacklineracing · Posted: Mon Jan 10, 2011 10:50 pm Post subject:

This is just a taste of what we have been working lately here at Team BlackLine.

Image may have been reduced in size. Click image to view fullscreen.

Two years ago we took stock rockers, welded them, and re-machined them to be 1.31:1 ratio. We realized this year, that we had not gone as far as we could have. We welded up another rocker and went to work. We have roughly measured this to be somewhere between 1.45:1 and 1.5:1. This rocker has also been clearanced to use 911 style adjuster screws.

gimmesomeshelter · Posted: Mon Jan 10, 2011 11:16 pm Post subject:

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oval56 · Posted: Tue Jan 11, 2011 12:20 am Post subject:

nice work... but what is about to do a casting from them?
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Russ Wolfe · Posted: Tue Jan 11, 2011 8:29 am Post subject:

Can I ask something?
What does this do to the cam? The extra load on the lobes, and the side thrust you are applying to the lifters, by running the push rods at the slight angle?
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blacklineracing · Posted: Tue Jan 11, 2011 9:53 am Post subject:

We ran our last engine with the 1.31:1 rockers over 8000 RPM multiple times, and it spent much of it's life between 6000 and 7500 RPM. We set both of our world records with those rockers. We are using our inserted lifters, so we can run the angle on the push rod without worry. We did ruin a cam in our race engine, but that was because of a poor cam profile, (this next engine's is muuuuuch better). We think that these rockers have proven themselves. We aren't worried at all.

BlackLine Racing Team

Roadcow · Posted: Tue Jan 11, 2011 10:03 am Post subject:

Very nice and the thread title is very appropriate! Cool

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67 Panel
63 Bug
66 Ghia Bonneville 2014
74 Ghia Vert
69 Bonneville Ghia 150 in Chico
69 Bonneville Ghia in Ireland
80 Cabby 2.1 16v
98 Passat

KäferKrieger · Posted: Thu Jan 13, 2011 10:43 pm Post subject:

nicework, how are the covers looking now?

your website must be down, that link didn't work
http://blacklinelandspeedracing.com/
but i found this
http://www.blackline57.com/
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mark tucker · Posted: Thu Jan 27, 2011 10:08 am Post subject:

if you lower the seat even lower it will give you more raito at the begining of the lift cycle ,thus opening the valve faster sooner.and the same on the closing end,faster lator. build one like that, degree the cam for the first .150" at the valve make a chart.then put in a shorter push rod about .075 to.125or so. and the new lowered seat rocker and repeat the cam degreeing at the valve and compair what is happening. good luck.and keep having fun

Kais Collection · Posted: Fri Jan 28, 2011 2:04 am Post subject:

any of these available to the public?
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oval56 · Posted: Fri Jan 28, 2011 2:35 am Post subject:

bvilletom · Posted: Mon Aug 08, 2011 7:22 pm Post subject:

New rocker setup. I made lightweight stock 1:1 rockers for this years 1378cc turbo motor. I have a much better cam now and I want to be a lot easier on all the valvetrain. I weighed about 70 stock rockerarm assemblies and they range from about 93 grams to 101 grams each. The pictured set are all about 81 grams now and still reliable. ALso here are some pictures of the 2011 36hp challenge motor (new age class), 912 cw crank, Beru Porsche oil cooler, S90 flywheel, many case modifications, and the improved Brukrasa heads.

Bvilletom

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36hp Challenge record holder New Age 126.236mph

1970 Porsche 914/6 – 2 liter LSR record holder
1992 Metro Sedan – 1 liter LSR records
1987 Chevy Turbo Sprint – under construction

Das Dragon · Posted: Mon Aug 08, 2011 7:29 pm Post subject:

Beautiful Tom!
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grueni · Posted: Tue Aug 09, 2011 3:04 am Post subject:

sure that it still will be a 1378cc with that opened heads Wink

looks like it will now be a about 1600cc +/- also because liners and pistons are not on the pic Wink

ok you also could use 40hp liners Wink

but the surface for the liners don't look like for 77mm bore Wink

i really like that way with stock heads, stock rockers. its so F****** beautiful. but why not the ratio rockers again this jear? or are they still a option? my porsche 356 rockers are 88g on the exhaust and 91g on the intake and much more ballanced than stock. all the weitht that is gone was from the one side with the screw.

i wish everybody a wunderful speedweek
chris
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1960 1584cc turbocharged, 35,5/32 (11,117s 1/4mile )

Roadcow · Posted: Tue Aug 09, 2011 6:58 am Post subject:

Beautiful Tom!
_________________
71 Westy Roadcow
67 Panel
63 Bug
66 Ghia Bonneville 2014
74 Ghia Vert
69 Bonneville Ghia 150 in Chico
69 Bonneville Ghia in Ireland
80 Cabby 2.1 16v
98 Passat

bvilletom · Posted: Tue Aug 09, 2011 8:29 pm Post subject: Responses to Grueni's questions

Grueni, the motor is only 1378 cc for this year's motor. Last year I went to 1582 cc, 912 Biral pistons & cylinders and it was not as free reving as it is at 77 mm bore. The heads are flycut to fit the 912 dome top pistons but the sealing flat area was purposely left wide enough the fit 77 bore or 82.5 base. I have lapped the cylinders to the heads just to make sure I have a complete sealing surface.

I am going to start this year with the light stock rockers but can switch if necessary to the high lift set. The heads, guides, springs are all set to use either setup. The valve train, lifters, etc. are the weak links on these 36 HP motors so the lighter the better on all valve train parts.

The paint on most of the parts is to keep the Bonneville salt from eating away the mag & aluminum parts.

Bville Tom
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bvilletom
36hp Challenge record holder New Age 126.236mph

1970 Porsche 914/6 – 2 liter LSR record holder
1992 Metro Sedan – 1 liter LSR records
1987 Chevy Turbo Sprint – under construction

mark tucker · Posted: Wed Aug 10, 2011 8:57 am Post subject:

do you alodine the aluminum/mag parts???I havent had any crosion at all since I started doing that, & I live on the coast.have to cross watter many times to get any where.

slalombuggy · Posted: Wed Aug 10, 2011 11:10 am Post subject:

I almost cried when I took my buggy out of storage this spring and I spent a lot of time washing it last Sept. when I got home, that is some special kind of salt, I think it must be part acid.........

Good luck this year Tom, would be nice to see you again. Be down next year barring any unforeseen circumstances.

BEAUTIFUL parts........

brad

mark tucker · Posted: Wed Aug 10, 2011 12:29 pm Post subject:

the elcheepo valve covers that crode in a day or less have been fine for 6 years now,since I alodined them& shot some clear on them, before the clear just came off or croded under them,and polishing every week gets old fast.+ now there a nice goldish collar, some things turn blue or if the solution gets contamanated with steel things turn blue,or if left in to long, I have a sump that is bright gold execpt for about 1 inch of it from the end is blue.


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