Silber Turbo Review

mt.sledder

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I've got 1300 miles on my Silber boosted 17 - 163 3" axys. I've been running 15 liters of av to a tank of 91 octane at Revy. 79 grams of weight, EPI maroon primary spring, 40* straight cam with a black/silver secondary spring. 7 psi waste gate spring works good up high at Revy 8400 rpm. At the lower Revy elevations I had to back down to 5 psi boost, I was starting to cut out at WOT, once I backed off the boost it ran solid again. Sled has been running absolutely awesome. No spark plug issues. Keep the rpm around 8400. Call me for your Silber kits. Rick...
 

jockdoc

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I've switched to running straight 100LL Av now. i don't want this baby to BLOW!!!
 

ktmsx350f

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Non intercooled is a much hoter charge i can see needing some Av but not stright. 76 grams seems like a lot of weight at 7 psi though where is your boost gauge tapped into ?
 

fredw

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You really need to see the charge temps on a non intercooler to a intercooler after a long pass.. It's not as different as some leads us to beleve.. Been there done that


Non intercooled is a much hoter charge i can see needing some Av but not stright. 76 grams seems like a lot of weight at 7 psi though where is your boost gauge tapped into ?
 

ktmsx350f

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76 grams at 7#'s still seems pretty good considering the boonfocker sidekick x kut runs straight Av at 10#'s and only pulls 70-72 grams. I find it hard to believe a stock at elevation is 62grams and low elevation is 66 grams. To pull an extra 30 grams of weight over stock hp at only 7psi seems like alot.
 

Chrisco

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Im running 10 pounds with 76 grams in the primary with 10 liters of VP X100 to 15 liters 92 pump gas. Runs like a top. Assuming we are all talking about Polaris weights. I will also add that my primary spring has a 310 finish.
 

ktmsx350f

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Yes that makes more sence Chris. I have rode with a BD sidekick x on 10 straight AV and a silber on 7+. My kit on 7-8 on pump gas had more track speed and was comparianle to the BD kit on 10 # both pulled harder then the silber kit and more track speed. I find it hard to believe a silber kit could pull 76 grams on 7psi
 
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