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 dangerous
A.k.a.: Dave Butler Muffin Man
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| posted on February 8th, 2013 at 10:14 AM |
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I have not looked at the torque numbers this time.
Their RPM is important but
the amount-number means nothing on these dynos, because I changed the gear ratio.
It was around the 6000 area I think.
Much better with a bit more advance in the cam, but still a couple of degress away from where is should be.
Yes i have no temp gauges, but last time I thought it was "getting a little hot dude", the sump temp was only 70 degrees,
which it never gets that hot at the track.
Ignition timing is the same as before, and ranges between 32 at 6000 and 24 at 8400.
I will see if I can paste a pic of the screen shot.
| Quote: | Originally
posted by westi
That's mad Alan.
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dragvw2180
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| posted on February 8th, 2013 at 10:17 AM |
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Dave do you think fuel stand off could have been trapped inside the boxes above your stacks at high rpm's causing an over rich condition ? Mike
McCarthy
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dangerous
A.k.a.: Dave Butler Muffin Man
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| posted on February 8th, 2013 at 10:24 AM |
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| Quote: | Originally
posted by westi
That's mad Alan.
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westi
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what the
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| posted on February 8th, 2013 at 05:07 PM |
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mad ,thanks for sharing dave.
down sharon.
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20bkombi
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| posted on February 8th, 2013 at 06:24 PM |
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X2... I think we need more data like this on AVD, i know all engines and cars/buses are different but we can all learn from each other. Thanks Dave!!
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)
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humpty
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| posted on February 9th, 2013 at 08:46 PM |
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Totally agree with you Aaron.... Cheers for the updates Dave.
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modulus
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| posted on February 10th, 2013 at 05:34 PM |
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| Quote: | Originally
posted by dangerous
There were numerous small changes to get the extra power, particularly the gains below the power peak,
but the removal of my side shields was an immediate 7.9hp above 7000.
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I'm pleased to hear it, but not surprised. Of course, at the track, air flow around the rear of the car will be much dirtier than on the dyno, so it
remains to be seen if the top end gain fully translates into MPH.
Air flow into velocity stacks, trumpets, Nascar ducts, etc. is formed and affected well away from the physical entry point or lip.
Now you just have to convert the valve train to desmodromic to get over 100 at the wheels.
Great progress and, as you point out, it shows the value of the dyno, as you had previously flowed the heads/manifolds with and without the air boxes
without significant difference.
hth
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dangerous
A.k.a.: Dave Butler Muffin Man
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| posted on March 18th, 2013 at 08:22 AM |
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Since the Sydney VW meeting got postponed,
I entered the Sportsman Event at Willowbank on Saturday the 16th.
Car ran leaner than the dyno, so had to tweak it a little each run.
It was over 40 degrees mid afternoon, but cooled to the mid 20's by the time the last runs were done.
The track was awesome.
No personal bests, but some good hard runs anyhow.
Six runs:
10.915 @ 124.17
10.893 @ 124.45
10.752 @ 124.87
10.852 @ 124.90
10.896 @ 124.19
10.787 @ 125.19
1/8 mile numbers were:
6.952 @ 98.96
6.932 @ 98.98
6.824 @ 100.15
6.909 @ 99.41
6.928 @ 98.98
6.851 @ 99.77
Unfortunately I lost my ideal main pill in the grass (or somewhere!)
after the third run,
and in the 4th run, I was trying a bit richer as the sun went down.
So ended up trying a leaner jet,(5th pass) and then a richer jet,(sixth pass), which was obviously a comprimise looking at the 1/8 mile MPH's.
Sixty foot times were:
1.494
1.487
1.450
1.471
1.487
1.456
The reaction times,
were all in the .0 range except the lolly pops.  
| Quote: | Originally
posted by westi
That's mad Alan.
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dangerous
A.k.a.: Dave Butler Muffin Man
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| posted on March 18th, 2013 at 08:32 AM |
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Thanks to all the VW blokes that showed their support through the day.
Andrew Swanson,
David Richardson,
Michael Holman,
Peter Page,
Aaron Roberts
Mark Forno (Captain).
Also phone ins from Marcus vass, Crazy Col, Jason frost, Henry and Dave Birchall.
Thanks guys!
| Quote: | Originally
posted by westi
That's mad Alan.
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1916baja
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| posted on March 18th, 2013 at 09:39 AM |
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No worries Dave! Thanks for giving us all something to do on Saturday arvo! My daughter loved it! Until I smacked her in the head with my engine
case.... She's tough.
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Doug Sweetman
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| posted on March 18th, 2013 at 11:14 AM |
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Sounds like good clean fun Dave, solid times mate !
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LIFE IN THE LOW LANE
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| posted on March 18th, 2013 at 12:18 PM |
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I've heard of getting your kids involved in VW's while they are young but trying to feed them an engine case takes it to a whole new level David
LOL!! She must be a big eater hahaha
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1916baja
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| posted on March 18th, 2013 at 12:40 PM |
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Hmmm... Yes, David smashed my child with the engine case! Good idea Brenndan.... That's what I'll tell the wife!
Mick. 
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dangerous
A.k.a.: Dave Butler Muffin Man
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| posted on March 25th, 2013 at 08:16 AM |
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My pulley kept coming loose, so I went to investigate.
| Quote: | Originally
posted by westi
That's mad Alan.
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mactaylor
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| posted on March 25th, 2013 at 08:21 AM |
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oh bugger! But you have a bigger one in the cupboard?
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dangerous
A.k.a.: Dave Butler Muffin Man
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| posted on March 25th, 2013 at 08:21 AM |
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Decided to use my "blower" crank and rods while I can find some time to make a new crank.
It is a little heavy, but has only 84 NA runs on it from new.
The old crank was a second hand ex-speedway item and i put 95 runs and 84 dyno pulls on it in nearly 11 years.
| Quote: | Originally
posted by westi
That's mad Alan.
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mactaylor
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| posted on March 25th, 2013 at 08:22 AM |
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What mains are they dave?
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dangerous
A.k.a.: Dave Butler Muffin Man
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| posted on March 25th, 2013 at 08:51 AM |
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2.75" main journals and 2.2" rod journals.
| Quote: | Originally
posted by westi
That's mad Alan.
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hellbugged
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| posted on March 25th, 2013 at 12:14 PM |
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Bummer.... But good you found it before catastrophic failure I guess
Big job ahead.
What other bits will you have to " remanufacture" to accommodate the bigger stroke?
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dangerous
A.k.a.: Dave Butler Muffin Man
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| posted on March 25th, 2013 at 01:58 PM |
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haha, yeah the only thing i WONT change will be the heads and pistons.
Everything from head studs and pushrods, and even stuff like the cables,
since the block this crank fits into, has a different engine plate and flywheel.
| Quote: | Originally
posted by westi
That's mad Alan.
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mactaylor
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| posted on March 25th, 2013 at 03:15 PM |
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| Quote: | Originally
posted by dangerous
2.75" main journals and 2.2" rod journals.
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That is huge was that the old crank or the blower crank?
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dangerous
A.k.a.: Dave Butler Muffin Man
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| posted on March 25th, 2013 at 05:51 PM |
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| Quote: | Originally
posted by mactaylor
| Quote: | Originally
posted by dangerous
2.75" main journals and 2.2" rod journals.
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That is huge was that the old crank or the blower crank?
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That is the blower crank.
That is equal to about 70mm mains and 56mm rod journals.
The original crank was 60mm mains
(like a type 4) and 2.1"(about 54mm) big end journals.
| Quote: | Originally
posted by westi
That's mad Alan.
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mactaylor
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| posted on March 25th, 2013 at 07:09 PM |
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nice crank dave not much flex with that size journal! lovely!
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vassy66T1
A.k.a.: Marcus Vass
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| posted on March 26th, 2013 at 01:24 PM |
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Lot of re-work to fit one bit in 
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hellbugged
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| posted on May 1st, 2013 at 06:49 AM |
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New engine coming together ok DB?
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dangerous
A.k.a.: Dave Butler Muffin Man
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| posted on May 1st, 2013 at 08:08 AM |
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Hi Daimo, not exactly a NEW engine since only the rings and pushrods are new, ha-ha!.
This will do though, until I can make some time for a new crankshaft.
This is basically my old blower engine with the newer cam, heads and pistons.
I also made up a box arrangement for the intake, to reduce the turbulance.
Decided against any ducting to the box until my new manifolds are done.
| Quote: | Originally
posted by westi
That's mad Alan.
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1916baja
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| posted on May 1st, 2013 at 08:35 AM |
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You're like a mad scientist DB! I love it!
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LIFE IN THE LOW LANE
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| posted on May 1st, 2013 at 08:46 AM |
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Doubles a nice workbench for spanners and that extra area for another tray of muffins!!
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Sides
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| posted on May 1st, 2013 at 09:01 AM |
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Looks cool DB... could almost put a little conveyor in it to act as a warming oven !!!
Doesn't seem to have anywhere for your filters to fit, or do you think just the box will be good enough to keep the stones at bay ???
Also curious on the turbulence side of things... what would be the impact of running ducting directly from the top of the stack up to the side windows
like have seen on some cars ???
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westi
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what the
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| posted on May 1st, 2013 at 12:28 PM |
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awsome dave,
your car is getting heavier.
keep putting in more wieght,
a few more round bits would have been nice.it will be interesting to see how it goes.
r u going back on the dyno or just going to see what the mph does.
down sharon.
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