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SVTPerformance's Chain of Restaurants
The Blower Bistro
Procharger F1D Boost Levels
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<blockquote data-quote="Helomech74" data-source="post: 14400285" data-attributes="member: 66460"><p>No issues over spinning the F series blowers buy about 10% or so. I've been doing this a long time and running prochargers the whole time. I wouldn't run the 3.4 pulley with a 7.5" lower though. That would have the blower spinning around 81K at 6800rpm, which is too much. If you want to run a 3.4 pulley, you're going to have to replace the crank pulley with something smaller (no real need for an 18% OD pulley when running the F series blowers as the step ratio makes a big difference.) The low compression of the stock block is going to make a big difference down low, so it's going to feel sluggish until the blower starts making power. Personally, I'd ditch the 7.5" lower, go with a stock 6.5" and run a 3.6 on the head unit. At 6800 rpm you'd be spinning the blower to around 67K or so. </p><p></p><p>The F1D on the mod motor really isn't that much different then a D1SC, just makes boost a little quicker due to the step ratio.</p></blockquote><p></p>
[QUOTE="Helomech74, post: 14400285, member: 66460"] No issues over spinning the F series blowers buy about 10% or so. I've been doing this a long time and running prochargers the whole time. I wouldn't run the 3.4 pulley with a 7.5" lower though. That would have the blower spinning around 81K at 6800rpm, which is too much. If you want to run a 3.4 pulley, you're going to have to replace the crank pulley with something smaller (no real need for an 18% OD pulley when running the F series blowers as the step ratio makes a big difference.) The low compression of the stock block is going to make a big difference down low, so it's going to feel sluggish until the blower starts making power. Personally, I'd ditch the 7.5" lower, go with a stock 6.5" and run a 3.6 on the head unit. At 6800 rpm you'd be spinning the blower to around 67K or so. The F1D on the mod motor really isn't that much different then a D1SC, just makes boost a little quicker due to the step ratio. [/QUOTE]
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SVTPerformance's Chain of Restaurants
The Blower Bistro
Procharger F1D Boost Levels
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