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SVTPerformance's Chain of Restaurants
The Blower Bistro
ysi trim question
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<blockquote data-quote="98 Saleen Cobra" data-source="post: 13713250" data-attributes="member: 52734"><p>Alright based on a 7000 shift point here is what I came up with from their site</p><p></p><p>7.75" crank pulley</p><p>7000 rpm shift</p><p>2.95" blower pulley</p><p>_________</p><p>63444 rpm blower speed.. </p><p></p><p>Max RPM of the YSI is 65k, but I know people who spin them to 75k lol.. The main thing with the YSI is that it's such a huge blower it needs to be spun and spun hard.. You can only go so small on pulley combo's before you have to start adding engine RPM.. Big Bore strokes dont' like to spun high from what I've read and talked to to quite a few engine builders.. a stock stroke would have suited you better for turning 7500+rpm.</p><p></p><p>I wouldn't go much smaller on a blower pulley as you will probably have belt slip.. BUT you never know.</p><p></p><p>I just did the same specs with a 2.75" pulley and it's 68058rpm.. I have a 2.75" pulley for sale that's a 8 rib if you want.</p></blockquote><p></p>
[QUOTE="98 Saleen Cobra, post: 13713250, member: 52734"] Alright based on a 7000 shift point here is what I came up with from their site 7.75" crank pulley 7000 rpm shift 2.95" blower pulley _________ 63444 rpm blower speed.. Max RPM of the YSI is 65k, but I know people who spin them to 75k lol.. The main thing with the YSI is that it's such a huge blower it needs to be spun and spun hard.. You can only go so small on pulley combo's before you have to start adding engine RPM.. Big Bore strokes dont' like to spun high from what I've read and talked to to quite a few engine builders.. a stock stroke would have suited you better for turning 7500+rpm. I wouldn't go much smaller on a blower pulley as you will probably have belt slip.. BUT you never know. I just did the same specs with a 2.75" pulley and it's 68058rpm.. I have a 2.75" pulley for sale that's a 8 rib if you want. [/QUOTE]
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SVTPerformance's Chain of Restaurants
The Blower Bistro
ysi trim question
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