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Old 02-19-2017, 06:19 PM   #41 (permalink)
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Head is ready, Pistons should lathe down about 1mm so i could install a smaler headgasket (0,3mm instead of 1,5mm) to increase the combustion from 9,3 to 11,2.

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Old 05-12-2017, 01:41 AM   #42 (permalink)
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In progress.
At this time i had problems with the hydros. They "push up" my valves because the realy high oilpressure at cold start (about 6bar).
Buy other hydros and would test it tomorrow.

But when the engine is warm, "the power flows through!"
Fuel consumption about 3,5-4l/100km at this time.

Yesterday i start to build my own EFI.
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Old 05-16-2017, 06:16 AM   #43 (permalink)
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Hi,

now the engine is almost finished (only the aircleanerbox is not in place)

I lathe the valves so i cut it about 2mm (i musst lathe a new notch for the cones). The reason : I would use light 50g hydraulic valve lifter from a BWM. These dont push my valves "half open" when the oil pressure rise above 2bar.

After that i weld the new intake Manifold. 0,82l Plenum, 190mm tube-length, 28mm tube-diameter, 150mm throttlebodylength,58mm throttle diameter.
I worked until 7am.. (about 20h without a break )

And now : The engine is like it should. Diesel-like but gasoline driven.
(PS. the performance-chart was driven with AFR 16,2 !)
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Old 05-31-2017, 03:29 AM   #44 (permalink)
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The engine runs about 2 Weeks. No problems appears, i only update the ignition table. It looks like the original engine, lesser problems with the "TÜV"
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Old 06-01-2017, 04:58 AM   #45 (permalink)
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la_voiture_de_courses - '03 Renault Megane Estate
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90 day: 44.34 mpg (US)

xiao lan - '01 Audi A2
90 day: 38.88 mpg (US)

Brit iron - '92 Mini Mini
90 day: 45.5 mpg (US)

Prius - '09 Toyota PRIUS Lounge
90 day: 47.37 mpg (US)

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All this is mighty impressive !

Would you benefit a gearswap ?
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Old 06-01-2017, 05:01 AM   #46 (permalink)
Master EcoModder
 
Join Date: Feb 2009
Location: France - Paris
Posts: 762

la_voiture_de_courses - '03 Renault Megane Estate
OldContinents
90 day: 44.34 mpg (US)

xiao lan - '01 Audi A2
90 day: 38.88 mpg (US)

Brit iron - '92 Mini Mini
90 day: 45.5 mpg (US)

Prius - '09 Toyota PRIUS Lounge
90 day: 47.37 mpg (US)

Beemer - '06 BMW F800 ST
90 day: 53.45 mpg (US)
Thanks: 188
Thanked 33 Times in 30 Posts
What's the length of the the valve ?

I have a Mini and I Wonder if I could use those smaller stem valves for improved airflow ...

70 HP out of an 8 valve 1.0 liter engine has quite some appeal ...

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