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 dangerous
A.k.a.: Dave Butler Muffin Man
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| posted on January 9th, 2015 at 08:14 AM |
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| 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 January 9th, 2015 at 08:16 AM |
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Now to make it fit inside the case,
and then off for a final balance.
https://www.youtube.com/watch?v=ruqPC6yMGrU&feature=youtu.be
| Quote: | Originally
posted by westi
That's mad Alan.
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mactaylor
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| posted on January 9th, 2015 at 03:29 PM |
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Very nice dave! pretty tight thou! have you got other rods with more clearance?
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dangerous
A.k.a.: Dave Butler Muffin Man
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| posted on January 9th, 2015 at 06:17 PM |
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I want to use these rods, so it only needs another mm or so and it can go together.
Cam lobes were an issue too, but not any more 
| Quote: | Originally
posted by westi
That's mad Alan.
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vassy66T1
A.k.a.: Marcus Vass
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| posted on January 10th, 2015 at 10:07 AM |
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So how much clearance do you leave as a safety ?
Tally Ho??
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dangerous
A.k.a.: Dave Butler Muffin Man
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| posted on January 11th, 2015 at 08:03 AM |
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Depends on a few things Marcus, but never less than a mm.
| Quote: | Originally
posted by westi
That's mad Alan.
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mactaylor
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| posted on January 11th, 2015 at 03:17 PM |
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Dave what case are you running? And do they change much year to year?
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dangerous
A.k.a.: Dave Butler Muffin Man
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| posted on January 12th, 2015 at 08:04 AM |
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Case was purchased in 1996 and is a Pauter.
Later ones do have improvements, but probably not as far as clearing large strokes is concerned.
| Quote: | Originally
posted by westi
That's mad Alan.
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mactaylor
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| posted on January 12th, 2015 at 10:30 AM |
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Not bad service life then! You would have stuffed many a mag case in that time!
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dangerous
A.k.a.: Dave Butler Muffin Man
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| posted on January 27th, 2015 at 10:44 AM |
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Heads are done with new valves for insurance.
16.44 : 1 compression ratio
| 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 January 27th, 2015 at 10:46 AM |
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Long block is assembled.
3003cc, 16.44 comp ratio, .800" lift,
and heads with 64mm throttle bodies flow 334cfm @ 25".
Should have pickup!
| Quote: | Originally
posted by westi
That's mad Alan.
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nbturbo
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| posted on January 27th, 2015 at 03:17 PM |
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Geez Dave your gunna need some big sparks to fire it with that much C/R.Top job - again.
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HappyDaze
A.k.a.: Greg Mackie
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| posted on January 27th, 2015 at 04:18 PM |
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Won't need sparks Gary......it should run on diesel. 
I'd rather wear a Beetle out by racing it than by polishing it!
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nbturbo
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| posted on January 27th, 2015 at 04:29 PM |
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Greg- you are always one step ahead of me:
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HappyDaze
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| posted on January 28th, 2015 at 05:30 AM |
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It's actually 1/2 an hour, Garry.
I'd rather wear a Beetle out by racing it than by polishing it!
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nbturbo
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| posted on January 28th, 2015 at 09:15 AM |
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That's now-wait till end of March and the gap will get even bigger.
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dangerous
A.k.a.: Dave Butler Muffin Man
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| posted on February 6th, 2015 at 06:13 AM |
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3003cc, just waiting for some dyno time. Next week I hope.
| Quote: | Originally
posted by westi
That's mad Alan.
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dangerous
A.k.a.: Dave Butler Muffin Man
23 Windows of Awesome
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| posted on March 5th, 2015 at 08:40 AM |
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Dyno went well, but broke an adjuster before the final tune. 265 at the wheels at 7400rpm, so far.
Picked up between 30 and 40hp at the wheels between 4000 and 7000.
Everything checks out cool,
so just upgrading the adjusters,
and the fuel and breather lines will be upgraded to -12.
Before the adjuster broke,
I had trouble trying to adjust the high speed mixture, so have upgraded to a Kinsler K140 lean out.
https://www.youtube.com/watch?v=5DBIKc7Xnhc&feature=youtu.be
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| Quote: | Originally
posted by westi
That's mad Alan.
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vassy66T1
A.k.a.: Marcus Vass
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| posted on March 5th, 2015 at 12:01 PM |
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Great results first up there.
300 in it yet??
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dangerous
A.k.a.: Dave Butler Muffin Man
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| posted on March 5th, 2015 at 01:21 PM |
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That is right on 300 at the FW.
A lot more if you believe the internet! ha-ha!
| Quote: | Originally
posted by westi
That's mad Alan.
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NUG637
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| posted on March 12th, 2015 at 01:53 PM |
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Nice  
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dragvw2180
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| posted on March 13th, 2015 at 07:13 AM |
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300HP at the flywheel is incredible with N/A , Way to go Dave " Big Block " Butler. Mike
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dangerous
A.k.a.: Dave Butler Muffin Man
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| posted on March 24th, 2015 at 04:33 PM |
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Made some changes to the velocity stacks:
| Quote: | Originally
posted by westi
That's mad Alan.
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dangerous
A.k.a.: Dave Butler Muffin Man
23 Windows of Awesome
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| posted on March 24th, 2015 at 04:35 PM |
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| Quote: | Originally
posted by westi
That's mad Alan.
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dangerous
A.k.a.: Dave Butler Muffin Man
23 Windows of Awesome
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| posted on March 24th, 2015 at 04:35 PM |
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https://www.youtube.com/watch?v=K2_ne1V-QVk&feature=youtu.be
| Quote: | Originally
posted by westi
That's mad Alan.
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vassy66T1
A.k.a.: Marcus Vass
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| posted on March 25th, 2015 at 08:26 AM |
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That gets a very nice finish straight up
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dangerous
A.k.a.: Dave Butler Muffin Man
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| posted on April 8th, 2015 at 07:41 PM |
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Got back to the dyno today and found some more power.
https://www.youtube.com/watch?v=KHkNQr-tQF0&feature=youtu.be&hc_locat...
| Quote: | Originally
posted by westi
That's mad Alan.
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dangerous
A.k.a.: Dave Butler Muffin Man
23 Windows of Awesome
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| posted on April 8th, 2015 at 07:45 PM |
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The lower 4 runs were from older tests, and the top 3 were the best runs THIS time, each trying different fuel and timing setups.
This graph shows the torque numbers as well.
We used these 'theoretical' torque figures to play with different timing curves.
With 16.44 compression, this combination needs NOT more than 20 degrees at full noise.(settled on 19).
This last graph shows a comparison with one of the good runs this time,(277.4),
with one from last month with unfinished final tune (it broke a rocker-adjuster that day, 263.7),
one of the runs from before Warwick '14. This with the smaller engine, but had lower compression but the new throttles(249.4),
and the 259hp is the previous best of the small engine with high comp but smaller throttles back in 2012.
| Quote: | Originally
posted by westi
That's mad Alan.
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modnrod
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| posted on April 8th, 2015 at 09:57 PM |
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Looks like that new runner length has moved your harmonic up to the where you wanted it (just a guess).
Lovely numbers. 
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dangerous
A.k.a.: Dave Butler Muffin Man
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| posted on April 8th, 2015 at 10:13 PM |
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| Quote: | Originally
posted by modnrod
Looks like that new runner length has moved your harmonic up to the where you wanted it (just a guess).
Lovely numbers.
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Yes, these programs have paid for themselves again and again.
It lost a bit at 5000 comparing the February test,
but still has 20 more at 5000, from when last raced,
and by 5500 its really on song!
By the time it gets to 7000, the gain was about 45hp!
Can't wait to try it at the track!
| Quote: | Originally
posted by westi
That's mad Alan.
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