Who runs a Wynjammer S/C?
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Who runs a Wynjammer S/C? - 9/17/2007 6:38:09 AM
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vagnozzi
Posts: 114
Joined: 2/12/2007 Status: offline
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Just curious who is running one of these superchargers, what you think of it, any numbers you've put down with it, etc... I see they're around $2500, not too bad, just want to know where it'll put you HP/TQ-wise. Post some pics if you got 'em, and btw this is the kit I'm referring to... http://www.wynjammer.com/ALM1115/GM_S10_4_3__V6.html
< Message edited by vagnozzi -- 9/17/2007 6:40:08 AM >
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RE: Who runs a Wynjammer S/C? - 9/24/2007 12:35:46 PM
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99 Blazer 4x4
Posts: 229
Joined: 9/5/2007 Status: offline
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Here a way that I do it I've used it for years and it as close as I have come to without a dyno I did this for a friend of mine on his car and was only off by 10 hp or so when the car was dynoed. This is the same formula used by many sportsman racers I got it from talking to some crews at the World Ford Challenge. Here is an example Take the boost that you are going to run 6 PSI (what the blower is pullied for) divided by 14.7 the atmospheres natural pressure (what an engine that is naturally aspirated is subject to), now plus 1 x base hp what the engine makes at the crank. = Boosted Hp. Now here is the kicker the reason shops don't go by this formula is because even though an engine is rated at 190 (what your blazer is rated at) it could be over or under that number. You can take two engines built the exact same way and the number at the crank could be different. Here is a couple other helpful formulas: If you port your head and want to know what the hp after will be. Take the number of cylinders x the CFM (flow of the head at the industry standard of 28" of water) then x.2575 = The HP After the Port. Also works after the valves have been machined. 25.4 mm is equal to 1 inch. Cubic Inch if you bore or stroke your motor. Bore x Bore x Stroke x P.I. (which is equal to 0.7854) x Number of cylinders. Torque at any RPM provided you know what the HP is at that RPM. (HP at any RPM x 5252 divided by the rpm = torque) HP at any rpm (same as above you have to know what the hp is) (Torque x RPM divide by 5252 = HP) Oh and with and automatic trans you will typicall (not always) loose around 20 percent power through the converter and trans so. Race automatics are around 15% loss. Manuals transmissons are around 15%, race manuals that are Dog ringed of faceplate loose around 10% loss. I guarantee these are accurate and they do work, the only formula which is just by standard of the industry an educated guess is the Boost formula ( the first formula I gave you ). If you have any questions send me a message through the blazer forum message thing or post and I will do my best to help you out, good luck to you. Zach
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