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YouTube / Vimeo Watch
Mahindra's New Goldstar 650
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<blockquote data-quote="Monkeypants" data-source="post: 171325" data-attributes="member: 2708"><p>As with the Goldstars, all BSA a10 Rocket engines came with a factory dyno sheet.</p><p>To my thinking, it looks like a very generous and hopeful curve drawn by a steady hand used to quickly making up the dyno page for each new bike. </p><p>Here is a link to some modern day Dyno results for A10s. The gentleman who had this done owns five A10s, all meticulously rebuilt. After break in he decided to dyno tune them to get fueling and ignition spot on.</p><p>The results are rwhp.</p><p>His 1960 SR has had the 356 cam replaced with the 357 Spitfire cam that came standard in 61 on SRs and all Rocket Goldstars.</p><p>Looks like it added some hp.</p><p>The only engine difference between his 60 SR and my 63 or any stock RGS is one half point of compression.</p><p>So we could maybe say 29 rwhp for my SR or an RGS without much exaggeration?</p><p>Shame it doesn't make 30, it sounds much better than 29!</p><p></p><p></p><p>[URL unfurl="true"]https://www.a7a10.net/forum/index.php?topic=6034.0[/URL]</p></blockquote><p></p>
[QUOTE="Monkeypants, post: 171325, member: 2708"] As with the Goldstars, all BSA a10 Rocket engines came with a factory dyno sheet. To my thinking, it looks like a very generous and hopeful curve drawn by a steady hand used to quickly making up the dyno page for each new bike. Here is a link to some modern day Dyno results for A10s. The gentleman who had this done owns five A10s, all meticulously rebuilt. After break in he decided to dyno tune them to get fueling and ignition spot on. The results are rwhp. His 1960 SR has had the 356 cam replaced with the 357 Spitfire cam that came standard in 61 on SRs and all Rocket Goldstars. Looks like it added some hp. The only engine difference between his 60 SR and my 63 or any stock RGS is one half point of compression. So we could maybe say 29 rwhp for my SR or an RGS without much exaggeration? Shame it doesn't make 30, it sounds much better than 29! [URL unfurl="true"]https://www.a7a10.net/forum/index.php?topic=6034.0[/URL] [/QUOTE]
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YouTube / Vimeo Watch
Mahindra's New Goldstar 650
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