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| Re: CNC engine idea final |
Subject: Re: CNC engine idea final
by Datsun100ATurbo on 2011/4/18 18:05:43
Quote:
D wrote:
That blows casting out or the picture, unless i go into the homecasting forums and
find someone interested in doing low run sand casting.
I still think high quality flat alloy plate at around an 30mm in thickness wont
suffer much warping if welded.
Since the cylinder sleeves are separate there is more emphasis on the oil lines, oil pump area, engine mount area and line boring.
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About the volvo block, I didnt know that some later blocks? suffered over 500hp
The early pushrod blocks and first ohc ones are massively over engineered.
Are you talking about the later modular alloy ones?
I have not much experiance in welding thick aluminium parts together but it might get quite expensive, the aluminium has to be very good quality but it might work! Would be nice to build an own engineblock out of alu.
About the Volvo engine itīs a B230, and yes the older Volvo blocks are massively over engineered but as it was dynoed to 1200hp, near 500hp/litre, it was big problems with the blocks cracking. There was also big problems holding the engine in the enginedyno when boost rose rapidly! Once when the engine was tore down in the speedshop and he had forgot to cover the cylinderhead, he looked me in the eyes and asked me if I saw the valves and porting, I sad ...no ... he said, good then I donīt need to kill you ;)
Marcus
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