Mr_Efficiency Posted January 20, 2008 Report Share Posted January 20, 2008 I admit i dont know a hole lot about cams, I know there purpose and how they work and what most of the specs mean but when it comes down to how those specs affect a motor, i'm lost. I'm building a 2.8 with a 3400 top end with minor port work, just gasket matching and I'm running turbo all this bolted to a getrag 282. What kind of specs am I looking for? From what i understand turbo's dont like a lot of over lap, over lap is ok just not excessive like a lot of the bigger cams. I'm not looking for anything extreme, just a nice improvement over stock. this is mostly a daily driver but I do a lot of autoX and hit the drag strip a few times a year. also if anyone had any links to sites selling cams that would help out to. thanks Quote Link to comment Share on other sites More sharing options...
MonteCarloDude Posted January 20, 2008 Report Share Posted January 20, 2008 you can put 3x00 heads on a 2.8/3.1? Quote Link to comment Share on other sites More sharing options...
Mr_Efficiency Posted January 20, 2008 Author Report Share Posted January 20, 2008 wow, was that a serious question?.... sorry i dont mean to sound like an @$$ but have u been living under a rock? http://domesticcrew.com/ http://60degreev6.com/ just to name a few off the top of my head. its been done a million times. Quote Link to comment Share on other sites More sharing options...
MonteCarloDude Posted January 20, 2008 Report Share Posted January 20, 2008 i think i seen it somewhere saying you cant, looks like they are full of shit. Quote Link to comment Share on other sites More sharing options...
Bake82 Posted January 20, 2008 Report Share Posted January 20, 2008 i think i seen it somewhere saying you cant, looks like they are full of shit. I don't think you can just put 3X00 UIM and LIM on 2.8/3.1 heads... And neil I know nothing for your cam, however I do believe R_dubya and Gutlessurpme are using a Crane 260 in his TGP. Mine want to talk with them. Quote Link to comment Share on other sites More sharing options...
GutlessSupreme Posted January 20, 2008 Report Share Posted January 20, 2008 I know nothing about cams either, I just followed other peoples recommendations but yea I have a Crane H260 in my TSTE, a couple of people use the 272, it's got a little more radical profile than mine. Quote Link to comment Share on other sites More sharing options...
jman093 Posted January 20, 2008 Report Share Posted January 20, 2008 You're right that boosted cars like less overlap. They don't need it when the air is being shoved into the cylinder from the super/turbo charger. My guess is that you'll want a cam with a 114-116 degree lobe seperation angle but whatever you get I wouldn't go below 113 degrees. Lift and duration are you're own preference on what you want as far as driveability/performance. You say you've done minor port work so you're head may not like a smaller cam. I'm not really sure how our v6 heads flow. Look at the catalogs on wesbites like Comp's and Crane's. They list all the specs for their cams, how they'll behave, and what you're engine should have to use them. If nothing else you can try calling or emailing them. They are willing to help. I'm not sure how much they know about V6's though. Don't skimp on the rest of the valvetrain. Replace at least the rods and lifters with good components. It's way worth it. Also if you're doing head work, make sure they do a 3-angle valve job. It's usually worth some ponies. Quote Link to comment Share on other sites More sharing options...
MonteCarloDude Posted January 21, 2008 Report Share Posted January 21, 2008 i think i seen it somewhere saying you cant, looks like they are full of shit. I don't think you can just put 3X00 UIM and LIM on 2.8/3.1 heads... maybe that was it, i just remember seeing something about a L82/LA1 top end not working with a 2.8/3.1. Quote Link to comment Share on other sites More sharing options...
Mr_Efficiency Posted January 21, 2008 Author Report Share Posted January 21, 2008 Yeah to do it you need the 3x00 heads, upper and lower intakes, fuel rail, timing cover and all the accesories off the front of the motor. you also need custom length pushrods unless you use the rockers out of a 95-96 3100. also i found this cam guide over on 60degreev6 http://members.shaw.ca/betterthanyoutoo/camshaft_guide.htm Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.