stock mpg motor build counter-weighted crank or stock crank

[spencerfvee]

update i just picked up this new engle w90 cam . .the cam has 265 duration 327 valve lift at cam wit 1.1 .1 rockers 297 lift 108 lobe center 108 . i have run this cam .and like the way it runs. real street frindly

spencerfvee

[Floating VW]

Hey Spencer, any chance I could get you to lay that cam card down flat and post a close-up picture for me?

I have a pretty big collection of cam cards in my library, but for some reason I don't have the Engle W-90.

Thanks in advance, man.
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"It's time you started treating people as individuals, rather than mathematically predictable members of an aggregate set, regardless of how well that works."

[spencerfvee]

[spencerfvee]

hi does any one have hot vws MPG motor build if you do can you post it spencerfvee

[KEGZ]

Prius.. 'nuff said

[oprn]

[vwracerdave]

[Shane Tuttle]

Going wwwaaaaaay back to the 1st page; you mentioned you don't want a remote breather because you want it to look stock.

What about mounting one on the back of the fan shroud?

[spencerfvee]

[spencerfvee]

[oprn]

Correct! You don't need it!
_________________
We had the stone age, the bronze age, the industrial age and now we are in the age of mass deception and mind control for corporate profit. (The mass media age)

[oprn]

[KEGZ]

[Chickensoup]

[Lingwendil]

I think another thing you can do on a mileage motor is to run tighter clearances on the bearings, a thinner oil (5W20?) and blueprint yourself an OEM 21mm oil pump to reduce the parasitic losses of trying to pump a standard weight oil. Full flow with a filter

I would definitely also look into somehow running pistons with thinner rings too, but not sure it'll be easy to source compatible stuff in a smaller bore like 85.5. If I'm not mistaken you can work up some other auto application in something like a 92mm? Not sure on pin height. Going to an 1835cc may be a step in the wrong direction?
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73 super beetle thread http://www.thesamba.com/vw/forum/viewtopic.php?t=649622 Back on the Road!

Modify your Kadrons for SVDA http://www.thesamba.com/vw/forum/viewtopic.php?p=8115884#8115884

Cast iron VJU4BR8 SVDA reference thread- https://www.thesamba.com/vw/forum/viewtopic.php?t=...mp;start=0

Need replacement filters for original Kadron aircleaners? WIX #42087 is a perfect fit, as is Napa Gold #2087!

[Chickensoup]

How about, tighter clearances and 26mm pump in addition to hoover mods to eliminate the need for a smaller pump?

more oiling to needed areas
less friction
thinner oil/tighter clearances
win/win?
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-'85 c10 5.3 LS, 222 cam, long tubes, x pipe, 3 inch spin tech's
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'65 Tourist Delivery Build
'66 RIP
'69 RIP
Hosea 4:6 "My people are destroyed for lack of knowledge"

[Lingwendil]

I'm not convinced the hoover mods are really needed on a streetgoing light car that will just be cruising.

But I've only ever run them on one engine. I didn't see any significant differences to stock on a 1600.
_________________
73 super beetle thread http://www.thesamba.com/vw/forum/viewtopic.php?t=649622 Back on the Road!

Modify your Kadrons for SVDA http://www.thesamba.com/vw/forum/viewtopic.php?p=8115884#8115884

Cast iron VJU4BR8 SVDA reference thread- https://www.thesamba.com/vw/forum/viewtopic.php?t=...mp;start=0

Need replacement filters for original Kadron aircleaners? WIX #42087 is a perfect fit, as is Napa Gold #2087!

[Alstrup]

Yes, the Hoover mods are most interesting on engines with higher sustained load. The extra oil sling inside the case is also counterproductive. However, equalling the temperatures in the engine side to side has other advantages as well as keeping the internal lubricated at all times.
As for tightening the tolerances, reduce oil sling and use a smaller pump is one way to do it. But I would rather sacrifice that and do it the other way around. Use a 26 mm pump and reduce max pressure and reduce parasitic losses that way around. Don´t know about the Berg relief covers today, but the CSP version is OK. Just double check the bleed off pressure. The reason to this approach is the fact that with more oil flow in the engine you get both better lubrication, but also more oil to pull heat away from given areas which again can help improve ring seal and reduce friction.
Hoover mods along with a 21 mm pump works as such, but there is little to no reserve pressure unless you go with a 20w 50 oil. Then the idea sort of disappears again.
Oil temperature efficiency. - While keeping the oil temperature up is generally not a problem I would like to add that if you are after the most power efficient oil temperature in an acvw (type1) it is in the 80 to 86 degree C window.

While thinner more modern rings aboslutely can make a difference, it is still minor in an ACVW engine tuning low rpms. One thing that is much more important is cylinder prep, as we have also discussed in other threads. I don´t know how the general condition were with new cylinders before approx 2008 because before that I hardly ever measured new cylinders. Today I measure everything, and I can tell you that it doesnt matter if it says Mahle or AA on the casing, The cylinders are out of round, Mahle being the worst. Mahle rings are better than AA, Mahle pistons are better than AA, IF you are turning higher rpms. In this case it doesnt matter much. AA pistons balance better than Mahle.
Speaking of ring seal. While this will soon make it a more complicated engine to build you could opt for B pistons in order to reduce pin height and thereby piston ratle.That will help more than going down in ring width.

Another subject is cooling capacity. When the engine gets on the road you can add a cylinderhead temp gauge on each bank. Then you can begin to play with pulley sizes to see how much you can reduce fan speed with out the head temperatures go above their comfort zone at the cruise speed you desire. If you take the Porsche 912 generator pulleys into account you have 9 different ratio´s to play with, not counting power- dry sump and super cool pulleys in. Chosing the exact right pulley ratio for your engine and your driving pattern can easily reduce parasitic drag with 1-2 hp at cruise speed.
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https://www.thesamba.com/vw/forum/viewtopic.php?t=435993

[oprn]

[oprn]

Would tighter clearances not increase friction instead of reducing it? A new engine will not get optimum fuel mileage until well broken in.
_________________
We had the stone age, the bronze age, the industrial age and now we are in the age of mass deception and mind control for corporate profit. (The mass media age)