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brer |
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#101
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Advanced Member ![]() ![]() ![]() ![]() Group: Members Posts: 2,555 Joined: 10-March 05 From: san diego Member No.: 3,736 Region Association: None ![]() |
I have seen the twin spark dizzies. Straight forward.
Then there are the crank fire twin pack setups. ok. what else can be used? Piggyback systems? (picture is for entertainment purposes only. this is not my motor) Attached image(s) ![]() |
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Chris Pincetich |
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#102
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B-) ![]() ![]() ![]() ![]() Group: Members Posts: 2,082 Joined: 3-October 05 From: Point Reyes Station, CA Member No.: 4,907 Region Association: Northern California ![]() |
Do you think a twin plug 1.7 with a heavy rotating mass, like 9.5:1 CR, and high power ignition could get 40-50 mpg on 91 octane in a stockish 914? (IMG:style_emoticons/default/beerchug.gif)
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Jake Raby |
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#103
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Engine Surgeon ![]() ![]() ![]() ![]() ![]() Group: Members Posts: 9,394 Joined: 31-August 03 From: Lost Member No.: 1,095 Region Association: South East States ![]() |
Do you think a twin plug 1.7 with a heavy rotating mass, like 9.5:1 CR, and high power ignition could get 40-50 mpg on 91 octane in a stockish 914? (IMG:style_emoticons/default/beerchug.gif) My "Super 2 Liter" combo is based similar to this with high velocity 1.7 heads... It has gotten 51 MPG with a SINGLE plug. It would be very hard to do a twin plug on a 1.7 casting due to chamber shape and volume. We base the twin plug heads on the 1.8 castings. |
brer |
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#104
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Advanced Member ![]() ![]() ![]() ![]() Group: Members Posts: 2,555 Joined: 10-March 05 From: san diego Member No.: 3,736 Region Association: None ![]() |
Do you think a twin plug 1.7 with a heavy rotating mass, like 9.5:1 CR, and high power ignition could get 40-50 mpg on 91 octane in a stockish 914? (IMG:style_emoticons/default/beerchug.gif) My "Super 2 Liter" combo is based similar to this with high velocity 1.7 heads... It has gotten 51 MPG with a SINGLE plug. It would be very hard to do a twin plug on a 1.7 casting due to chamber shape and volume. We base the twin plug heads on the 1.8 castings. is this the long stroke small piston engine? regarding time delay on the inductive pickups.... they are used to set the timing of the engine triggering the timing light so the delay must be minute. milliseconds. |
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