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Old 01-17-2014, 11:53 AM   #21 (permalink)
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Hi,

the old engine was a "AAV" with monomotronic.
The new one get a sequential Multipoint injection, controlled with a "Trijekt".
Here the engine tuning-thread : Engine mod (BJ 1991)


This red Polo is my second. My first had a AAU Engine. No changes, full stock.
Best result -> 3,8l/100km (from tank full to empty)
Best result with the "new" one -> 3,3l/100km over 1250km (Highway)

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Old 01-17-2014, 05:00 PM   #22 (permalink)
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reworked :diffuser

Quote:
Originally Posted by Jack-Lee View Post
I used a tuned 3F Gasoline engine with about 90-100hp.
The W1 with a G40 Loader are better, but i need a "Umweltplakette" to drive through different cities.
No chance with this old diesel.

And now the reworked version
Without a true-length X-ray look in the side elevation view,it appears that the diffuser angle might be a bit steep.
The lowest drag versions are no more that 2.5-degrees,and the higher drag version is limited to 4-degrees.
I constructed a 'fast' diffuser for Bonneville,based upon a Mustang GT of the 1980s,only to discover that it produced unwanted drag,which was resolved in the short term with cardboard and duct tape.
Closing the opening down,and relaxing the up-swept angle allowed a speed record and mileage above 60 mpg from this single modification.
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Old 01-18-2014, 04:14 AM   #23 (permalink)
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Hi,

the angle of the difusor on the picture are 14. To much :/
The new angle (read in "Hucho") about 5, but i test 2,5 on monday.
Thx
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Old 01-19-2014, 12:49 PM   #24 (permalink)
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That's a pretty impressive result for a spark-ignited engine
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Old 05-02-2016, 06:38 PM   #25 (permalink)
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Hello,

slow but in progress! But study and my own business cost much of time.

Build the new throttlevalve on the new EFI.
At home i made the 1:18 model-Kammback





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Old 05-12-2016, 03:37 PM   #26 (permalink)
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Very cool. Keep it up!
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Old 09-20-2016, 02:28 AM   #27 (permalink)
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Hi,
the project is not dead yet!
On Friday my car, or the rest of it, move to it new "home". A big garage with two other "Polo constructeurs".
I hope i could finish this project over the winter.
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Old 09-24-2016, 01:54 PM   #28 (permalink)
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Yea, my car reach his new home
So i could start with the restauration
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Old 09-28-2016, 12:58 PM   #29 (permalink)
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Search for rust and dissasambly the car on my "piviot mounting"



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Old 01-07-2017, 05:25 PM   #30 (permalink)
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The red polo go to the junkyard, too much rust.. But i have a new car body without any rust The Story goes on.

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