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Bruce Tweddle
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« Reply #1 on: January 22, 2012, 05:28:46 pm » |
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I was wondering why you were only going up to 5k...
You're now done with the singles. Put the real springs on it, and let it RIP!
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dangerous
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« Reply #2 on: January 22, 2012, 05:33:59 pm » |
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Sounds very sweet there Craig. Except for the valve float at 12 seconds! Bring on the dual springs! Did you go for stock or ratio rockers this time?
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N/A 10.93@122.31@1785lbs
Blower Mtr 147mph@1870lb
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David Ward
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« Reply #3 on: January 22, 2012, 07:29:18 pm » |
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What kind of ignition is that?
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Cornpanzers
62 Beetle
63 Single Cab
73 Thing
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2plug Craig
Junior
 Offline
Posts: 193
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« Reply #4 on: January 22, 2012, 07:43:42 pm » |
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Hi David
That's Pobjoys twin plug set up.
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'68 Bug IDA'd Twin Plugged 2332
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67VDUBYA
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« Reply #5 on: January 22, 2012, 09:02:40 pm » |
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Cool! What up with the twin plugs? Like aviation heads or something ? Sounds cool what's the benefits of it , I guess more spark but would like to hear more, awesome. Post more vids when you are give a full pull !
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2plug Craig
Junior
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Posts: 193
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« Reply #6 on: January 23, 2012, 08:38:43 pm » |
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Sounds very sweet there Craig. Except for the valve float at 12 seconds! Bring on the dual springs! Did you go for stock or ratio rockers this time?
Yeh Dave, stage 1 is stock rockers. |
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'68 Bug IDA'd Twin Plugged 2332
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67VDUBYA
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« Reply #7 on: January 23, 2012, 09:43:01 pm » |
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So no details on the 2 plugs?
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2plug Craig
Junior
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Posts: 193
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« Reply #8 on: January 24, 2012, 02:05:08 am » |
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So no details on the 2 plugs?
Heads are Street Eliminator machined to accept the 2nd plug. |
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'68 Bug IDA'd Twin Plugged 2332
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Dave Conklin (Cornpanzers)
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« Reply #9 on: January 24, 2012, 03:13:24 pm » |
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Traditionally on Porsche engines, high compression pistons have a very tall dome which bisects the combustion chamber. A single plug struggles to thoroughly ignite the entire chamber area. Imagine a mountain range in the middle of the combustion chamber.
With a flat top piston, I dont know that there would be much benefit...but would love to learn more about this combo.
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Cornpanzers!
67 Turbo Beetle
70 911 "S"
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David Ward
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« Reply #10 on: January 24, 2012, 09:35:35 pm » |
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Traditionally on Porsche engines.... which bisects the combustion chamber.....
Really? {sigh} I think we've lost Dave forever.    |
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Cornpanzers
62 Beetle
63 Single Cab
73 Thing
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2plug Craig
Junior
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Posts: 193
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« Reply #11 on: January 25, 2012, 04:53:24 am » |
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Another Pic.
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« Last Edit: February 03, 2012, 03:07:35 am by 2plug Craig »
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'68 Bug IDA'd Twin Plugged 2332
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67VDUBYA
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« Reply #12 on: January 27, 2012, 12:48:30 pm » |
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awesome
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2plug Craig
Junior
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Posts: 193
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« Reply #13 on: January 29, 2012, 03:23:16 am » |
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More Engine pics.
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'68 Bug IDA'd Twin Plugged 2332
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« Reply #14 on: January 31, 2012, 04:57:49 pm » |
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Looks great Craig!
How hard can you rev it once the dual or heavier springs go in?
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N/A 10.93@122.31@1785lbs
Blower Mtr 147mph@1870lb
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2plug Craig
Junior
Offline
Posts: 193
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« Reply #15 on: February 03, 2012, 03:04:57 am » |
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Looks great Craig!
How hard can you rev it once the dual or heavier springs go in?
Thanks Dave. Won't really know how it revs until I get the doubles in and give it a better tune and stick a smaller pulley on. It better rev! |
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« Reply #16 on: February 03, 2012, 03:32:16 pm » |
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What I meant was what did your engine builder say your shift point, or to set your rev limiter to. 8000?
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N/A 10.93@122.31@1785lbs
Blower Mtr 147mph@1870lb
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2plug Craig
Junior
Offline
Posts: 193
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« Reply #17 on: February 04, 2012, 03:44:02 am » |
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We'll be starting at 7,400 and see how it goes. I haven't raced it since 2000 so I'll need some time to get my eye in.
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