What has Dave Been Up To? 29th AUG 2015: 10.66@126.09mph!!

dangerous · 2006-10-31T03:22:08+00:00

Well, after the Warwick '06 meet, I decided to make some changes to the car. These include : Purchase some quality nozzles for the fuel system and get it re-flowed, Adding an MSD 6AL, Putting stock width guards on the car, And, upgrading the CV joints. The CVs and flanges were robbed off my crashed Chassis car, and are Commadore items. The drive flanges and stubs have had locating rings welded to the standard items. Some clearancing of the bump stop bracket was needed. These CVs use a 28 spline axle the same as a 930 CV joint. My axles are made by Romac here in Brisbane, and are 400mm long. You can see how I cut a groove in the outer, to reduce some of the added weight. This is pretty conservative, because I dont want a failure. Perhaps I will remove a little more weight later. [ Edited on 31-10-2006 by dangerous ] [ Edited on 2-11-2006 by dangerous ] [ Edited on 14-3-2007 by dangerous ]

dangerous 23 Windows of Awesome

5,901 posts · joined Jan 2005 · 31 Jan 2011, 5:32 pm

#824096

Had to change the filter bracket too...

20bkombi Wolfsburg Wizard

597 posts · joined Mar 2009 · 31 Jan 2011, 8:19 pm

#824141

So how thick will the largest diameter be (o/d), and would that be in the centre across the length?

AARON'S SPEED SHIFT AUTOS
Specialising in Vw automatic transmissions, differentials and torque converters
Stock or modified to suit your application (street, drag, off road)
Ph 0402 233 027

dangerous 23 Windows of Awesome

5,901 posts · joined Jan 2005 · 31 Jan 2011, 8:30 pm

#824144

3/4" will be what they finish at.
Not sure yet whether they will be tapered from both ends to the middle
or just a short section each end.
This will depend on clearance within the push rod tube.

dangerous 23 Windows of Awesome

5,901 posts · joined Jan 2005 · 4 Feb 2011, 9:39 pm

#824814

STOCK Wolfsburg Wizard

446 posts · joined Apr 2008 · 4 Feb 2011, 9:45 pm

#824818

looking good dave
holy shit there's no way your bending thos push rods

🤘
STOCK

matberry Moderator Go hard or go home

8,114 posts · joined Mar 2006 · 4 Feb 2011, 9:50 pm

#824822

When do we see the 'finished' pushrod Dave??

Matt Berry Motorsports...air cooled advice, repairs and mods Ph 0408 704 662
OFF-ROAD,CIRCUIT,DRAG,STREET,ENDURANCE

20bkombi Wolfsburg Wizard

597 posts · joined Mar 2009 · 4 Feb 2011, 9:50 pm

#824823

Looking good Dave, are they about the same height as the old runners?

AARON'S SPEED SHIFT AUTOS
Specialising in Vw automatic transmissions, differentials and torque converters
Stock or modified to suit your application (street, drag, off road)
Ph 0402 233 027

humpty Bishop of Volkswagenism

3,336 posts · joined Sep 2002 · 4 Feb 2011, 10:22 pm

#824836

The never ending battle to find more.................

FUCH your early!

http://www.noh2o.org/

dangerous 23 Windows of Awesome

5,901 posts · joined Jan 2005 · 5 Feb 2011, 7:12 am

#824855

Runners will be the same length as the old ones.
Pushrods will be finished when I get my valves and springs.
This way I can see where they will actually run, and finalize the length.(all before hardening)

dangerous 23 Windows of Awesome

5,901 posts · joined Jan 2005 · 10 Feb 2011, 6:57 am

#825642

Springs, retainers and collets arrived.
Also some cups to locate the bottom of the springs.
Retainers and collets are both Titanium.

Will have to machine out the spring seat and guide boss to fit them in.

dangerous 23 Windows of Awesome

5,901 posts · joined Jan 2005 · 10 Feb 2011, 6:59 am

#825643

That is a CB dual spring from some 044s above for comparison.

Stanley I guess the reward is in the doing of it

4,523 posts · joined Mar 2003 · 10 Feb 2011, 8:03 am

#825645

wholly crap they are some serious springs.

vassy66T1 Wow ... are U reading this?

2,120 posts · joined Jun 2003 · 10 Feb 2011, 8:12 am

#825647

Looking good Dave.
Like the progress 👍

humpty Bishop of Volkswagenism

3,336 posts · joined Sep 2002 · 10 Feb 2011, 9:18 am

#825657

X2!!!

FUCH your early!

http://www.noh2o.org/

dangerous 23 Windows of Awesome

5,901 posts · joined Jan 2005 · 10 Feb 2011, 8:33 pm

#825725

Made this tool today to cut the spring seat and boss to size.

The outside diameter location:

The boss which i have stepped slightly so as to hold the spring tight at the base.

dangerous 23 Windows of Awesome

5,901 posts · joined Jan 2005 · 10 Feb 2011, 8:36 pm

#825727

Began off setting the pushrod tube holes.

Will cut the chamfer tomorrow.

Will have to devise a new method to fit and test the springs.
These things use as much tension just to get the collets in,
than what I had before at full lift!

dangerous 23 Windows of Awesome

5,901 posts · joined Jan 2005 · 10 Feb 2011, 8:39 pm

#825728

This is an old Big Block Chev valve that I lengthened to fit ,
just for my trial assemblies,
until my actual valves arrive.

STOCK Wolfsburg Wizard

446 posts · joined Apr 2008 · 10 Feb 2011, 9:08 pm

#825738

looks awesome dave
you are a freak

🤘
STOCK

westi what the

1,610 posts · joined Aug 2005 · 13 Feb 2011, 6:06 am

#826093

why not titanium push rod's.hey.
now that sounds like a plan.
as alway's dave great work.
can't wait to see the finall set up .

down sharon.

dangerous 23 Windows of Awesome

5,901 posts · joined Jan 2005 · 13 Feb 2011, 7:43 am

#826105

Titanium is not a good pushrod material.
It is more suited to springs.
Some years ago a customer used some in a 1500cc speedway application,
and they survived fine, but were flexing about 1/2".
It lost so much timing
that a change to chomoly required a duration reduction on a new cam
of like 20 degrees to restore lost HP at lower rpm.

3M actually make an aluminium matrix material that is a possible candidate,
but these springs may even test those $1000 niceties.

matberry Moderator Go hard or go home

8,114 posts · joined Mar 2006 · 13 Feb 2011, 8:27 am

#826110

Wow Dave, who would think composite push rods could operate those HUGE valve springs. 👍

Matt Berry Motorsports...air cooled advice, repairs and mods Ph 0408 704 662
OFF-ROAD,CIRCUIT,DRAG,STREET,ENDURANCE

dangerous 23 Windows of Awesome

5,901 posts · joined Jan 2005 · 14 Feb 2011, 2:57 pm

#826363

Actually, I am not so sure that they would.
But if any alum push rod had a chance,
these would be the ones to try.

http://solutions.3m.com/3MContentRetrievalAPI/BlobServlet?assetType=MMM_Image&locale=en_US&blobAttribute=ImageFile&fallback=true&univid=1114293769330&placeId=62603&version=current

dangerous 23 Windows of Awesome

5,901 posts · joined Jan 2005 · 14 Feb 2011, 2:59 pm

#826364

try again!

http://solutions.3m.com/3MContentRetrievalAPI/BlobServlet?assetType=MMM_Image&locale=en_US&blobAttribute=ImageFile&fallback=true&univid=1114293769330&placeId=62603&version=current

no good,
just google 3m aluminium pushrods

Sides Veteran Volks Folk

2,220 posts · joined May 2007 · 14 Feb 2011, 7:29 pm

#826408

Hmmm... interesting... ceramic fiber turning up everywhere !!!

But, I'll be the dodo that asks... do stiffer pushrods actually reduce valve float ???

I would've thought being stiffer would give more lift (due to less bend), and sort of "sharpen" the shape of the cam at full lift over a pushrod that bends under pressure... which is almost the opposite of what their graph thing shows....

🤓

VWDCQ vice pres & web dude - vwdcqinc.org.au
Join a car club - get car peeps

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dangerous 23 Windows of Awesome

5,901 posts · joined Jan 2005 · 20 Feb 2011, 8:09 am

#827266

Hi Dave,
it all comes down to terminology really.

If we call it"loss of valvetrain control", then yes,
a stiffer pushrod has less chance of inducing vibration
into the springs.

If it were a simple matter of the spring to keep everything tracking the cam lobe,
then heavier components would require more tension to do the job.
But there are so many other influences that make valvetrain control a constant battle.

Some times everything from a cam lobe profile, to a pushrod that is not quite right in its design,
can change things from one engine to another, even when all else is equal.

dangerous 23 Windows of Awesome

5,901 posts · joined Jan 2005 · 20 Feb 2011, 8:13 am

#827267

New valve guides for the inlet.
This is the second set.
The first set i made were a little short (in hind-sight).

Pushrods all drilled and roughed out:

dangerous 23 Windows of Awesome

5,901 posts · joined Jan 2005 · 20 Feb 2011, 8:15 am

#827268

Pushrod peepers.

New tube seal plates.
Made from 7075:

These new tubes are made from buth tube, (32mm) and solid that is machined to size,(27mm)

dangerous 23 Windows of Awesome

5,901 posts · joined Jan 2005 · 20 Feb 2011, 8:16 am

#827269

Manifolds and ram tube adapters finished.

Stanley I guess the reward is in the doing of it

4,523 posts · joined Mar 2003 · 20 Feb 2011, 2:17 pm

#827306

Lookin' good Davo.....how long till it makes some noise?

nbturbo Veteran Volks Folk

2,171 posts · joined Dec 2002 · 20 Feb 2011, 3:16 pm

#827313

Dave, are you using anything special for seals on the pushrod tubes,or stretching OG ones to fit?