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EarlyBay Forums
Technical
Will this work? Advise on engine built and exhaust, please
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<blockquote data-quote="StefansBus" data-source="post: 596026" data-attributes="member: 22908"><p>Possible winter project. The bus (stock 1969 bay with 1600SP) could use more torque.</p><p></p><p>I'm not after high RPMs and lot's of horse power. I just want more pull.</p><p></p><p>At the same time I want things to look as stock as possible. </p><p></p><p>How big can I go with the stock exhaust system including heater boxes provided I keep the RPMs low (as low as stock or even lower) without running into heat problems due to too much restriction to exhaust gas flow?</p><p></p><p>I'm pretty sure 1776cc won't be a problem but what about 1956 or 2017cc?</p><p></p><p>As you can see I want to go 90.5 on the piston and cylinders.</p><p></p><p>I would keep head work to a minimum and valve size stock or close to stock. The cam would remain stock or close to stock, too.</p><p></p><p>I have an aluminum case which should not be needed but won't hurt.</p><p></p><p>I'm also planning on a quality, forged, counterweight crankshaft. I don't think this engine will need it but I wan't it to be as smooth and reliable as possible. </p><p></p><p>I think I will have to convert to dual port and while I am at it I would go for a single 37 PICT Solex carb (converted genuine 34 PICT 3). Not interested in dual carbs for this engine. </p><p></p><p>Will the stock exhaust system work with such a combo?</p><p></p><p>I've also posted this over on the samba and I'm looking forward to your thoughts on the exhaust question as well as the envisaged concept, keeping in mind I want stock looks, torque and reliability.</p><p></p><p>Cheers</p><p></p><p>Stefan</p></blockquote><p></p>
[QUOTE="StefansBus, post: 596026, member: 22908"] Possible winter project. The bus (stock 1969 bay with 1600SP) could use more torque. I'm not after high RPMs and lot's of horse power. I just want more pull. At the same time I want things to look as stock as possible. How big can I go with the stock exhaust system including heater boxes provided I keep the RPMs low (as low as stock or even lower) without running into heat problems due to too much restriction to exhaust gas flow? I'm pretty sure 1776cc won't be a problem but what about 1956 or 2017cc? As you can see I want to go 90.5 on the piston and cylinders. I would keep head work to a minimum and valve size stock or close to stock. The cam would remain stock or close to stock, too. I have an aluminum case which should not be needed but won't hurt. I'm also planning on a quality, forged, counterweight crankshaft. I don't think this engine will need it but I wan't it to be as smooth and reliable as possible. I think I will have to convert to dual port and while I am at it I would go for a single 37 PICT Solex carb (converted genuine 34 PICT 3). Not interested in dual carbs for this engine. Will the stock exhaust system work with such a combo? I've also posted this over on the samba and I'm looking forward to your thoughts on the exhaust question as well as the envisaged concept, keeping in mind I want stock looks, torque and reliability. Cheers Stefan [/QUOTE]
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Will this work? Advise on engine built and exhaust, please
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