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| 90 degree V4 OHC |
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| jiihoo:
Actually Skoda was made in Czechoslovakia. But you were quite close, as Czechoslovakia is only 1000 kilometers from Russia and it was a socialist country at that time. The "classic" rear-engined Skoda of the 70's, well, it was a "classic" in its own right. It was well known for its beaty and handling or rather the lack of both. The best that can be said about it is that it would have been a decent car had it been made 20 to 30 years earlier... And maybe it actually was, I am not old enough to remember beyond the 70's. The other common rear-engined car of the time, the Volkswagen Beetle, became a real classic but the rear-engined Skoda was mostly forgotten. Nowadays Skoda is part of the Volkswagen group just like Audi and Seat AND Bentley AND Lamborghini (I didn't know of the last two before just two minutes ago and now I am in shock). The Skoda of today is quite ok. I don't think there is any of the "original" Skoda design left anymore except for the logo. It is all Volkswagen technology now. The Skodas of old, before the 60's, were quite good cars in their time and there are many old car enthusiasts who would very much like to find a good example and restore it back to its original glory. So your engine being compared to a Skoda engine is actually not as bad as it first might sound like ::) Back to on-topic now :whip: This will be an interesting thread to watch! Even just sitting there held together by tape the parts somehow seem to belong together. |
| dbvandy:
Well, I have made some decisions... quad cam 16 valve hemi head... no rockers, cam directly over the valve with a inverted cup for adjustment. I think I have it all figured out... I have one prototype valve made now, might have to adjust dimensions a bit will have one head prototyped up tomorrow and will post pics... The heads are by far the hardest part... the cylinders, pistons, and crank will be easy... More to come... Doug |
| dbvandy:
Here is a valve assembly. There will be 16 of them (ugh....) It is made in 5 parts (the inverted cup that rides on the cam and over the guide is not made....) The valve is 1/8th inch rod and the head is silver soldered on... not so sure about this... might make them all out of one piece like I did on the other engines... any suggestions? The tappet is integrated into the valve so there is two places that the valve stem rides in the guide. The valves will be at 30 deg angle. One cam will operate both valves... a total of 8 cams, but there will be a lobe on each end. The heads will be about 1/2 an inch closer to the block once the cylinder is inset into block and head. Still huge... I found a site to compute the compression ratio... the CI will be 3 and compression ratio 4 to 1... nice... More to come... Doug |
| John Hill:
I didnt know Skoda made a V4. :scratch: |
| John Hill:
--- Quote from: dbvandy on March 14, 2011, 11:43:17 PM ---Well, I have made some decisions... quad cam 16 valve hemi head... no rockers, cam directly over the valve with a inverted cup for adjustment. I think I have it all figured out... I have one prototype valve made now, might have to adjust dimensions a bit will have one head prototyped up tomorrow and will post pics... The heads are by far the hardest part... the cylinders, pistons, and crank will be easy... More to come... Doug --- End quote --- Will you be carving the head(s) out of solid? BTW, I toyed with the idea of making a water cooled head for a single cylinder engine by cutting cross sections out of thin plate then fluxing them and cooking the entire assembly to braze it together. Food for thought? :beer: |
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