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Re: building a engine with a supercharger or not
If staying with stock heads I would go with at least 105LB valve springs and you'll want a turbo cam thats not too aggressive since most of them like from ZZP will require 130lb + valve springs ( their ST5 cam I think is 140lb-150LB springs they reccomend). And most who do 130lb + springs do a double roller timing chain. And if you do a new cam you'll want to do the lifters while your at it. Pushrods you'll have to measure to see if you need newer ones for either shorter or longer( some need shorter pushrods) , so far I've been good with stock length Comp ones. Head gaskets since your boosted I would go with MLS head gaskets, stock thickness is .062. You can get a little thicker like .065( thats what I run) or you can go all the way down .045 , look on ZZPerformance site they can explain how much thinner gaskets raise compression. Cost of the engine build is going to up there, cost of the turbo is going to depend on how much you do and where and what parts you buy. Mine was all new, $1300 Garrett turbo, $200 intercooler, $250 Tial wastegate, $250 Tial BOV, $500 on pipping and I would say $400 on misc. stuff. It was all under $3000 and that was with a AEM $300 electric boost controller and $300 Coolingmist methanol injection kit. Other stuff like cooling blanket for the hot side of the turbo and all the oil lines and return lines. Also my turbo is water cooled so I had lines and fittings for the coolant to run through the turbo.
If staying with stock heads I would go with at least 105LB valve springs and you'll want a turbo cam thats not too aggressive since most of them like from ZZP will require 130lb + valve springs ( their ST5 cam I think is 140lb-150LB springs they reccomend). And most who do 130lb + springs do a double roller timing chain. And if you do a new cam you'll want to do the lifters while your at it. Pushrods you'll have to measure to see if you need newer ones for either shorter or longer( some need shorter pushrods) , so far I've been good with stock length Comp ones. Head gaskets since your boosted I would go with MLS head gaskets, stock thickness is .062. You can get a little thicker like .065( thats what I run) or you can go all the way down .045 , look on ZZPerformance site they can explain how much thinner gaskets raise compression. Cost of the engine build is going to up there, cost of the turbo is going to depend on how much you do and where and what parts you buy. Mine was all new, $1300 Garrett turbo, $200 intercooler, $250 Tial wastegate, $250 Tial BOV, $500 on pipping and I would say $400 on misc. stuff. It was all under $3000 and that was with a AEM $300 electric boost controller and $300 Coolingmist methanol injection kit. Other stuff like cooling blanket for the hot side of the turbo and all the oil lines and return lines. Also my turbo is water cooled so I had lines and fittings for the coolant to run through the turbo.
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