What cam should i use

[reddog3.8]

I am having my motor built now, and it is time to pick a cam, I went with the stroker bottom end and I have ported iron heads with intake. I did not buy a turbo yet and my goals are to have a nice street car not a monster. Is the roller set up worth the extra money or will I still make plenty of power with the flat tapped?


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[Boost231]

Roller is the way to go. Get something in the 212 range

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[SHADOWII]

Roller is the way to go. Get something in the 212 range

I second that! My 212/212 supplies 610whp on low boost for street duty.

 

[earlbrown]

You'll definitely make more power with an engine that stays in one piece than one that's full of ground up flat tappet cam lobes.

I'd go smaller than than with a roller. Unless you're raising your static compression a point or two, a big ass cam won't do anything but bleed off cylinder pressure and lower your VE.

 

[reddog3.8]

Thanks sounds like I am saving up for a roller set up


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[Pronto]

The iron heads are going to be your limiting factor for possible hp. Since your looking for more of a street motor you may want to stay on "smaller" size. Bison can design specs for that combo that will keep the rpms down and make a ton of power early. Make sure you measure for correct push rod length and not just use a standard size.

 

[chris kirk]

Roller! Flat tappet's for women and children..... IMO!

 

[we4Mateo]

Roller! Flat tappet's for women and children..... IMO!

Plenty of people use a flat tappet cam. Is it the best choice? Depends on your tolerance for clicky lifters and power goals. Not knowing how to break in a flat tappet cam or make it live is for women and children.

 

[Boost231]

I've run a flat tappet for years with noo issues. I would do it again if I was on a budget

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[Paul Lohr]

I wonder if the tie bars on aftermarket roller lifters wear out in 20k miles or so? It seems like a lot of people have noisy roller lifters and I've seen at least a few mention the tie bars being loose after some amount of use. Perhaps the OEM style roller lifter conversion is better for cars that will be driven a fair amount? That is, if the OEM style lifters can survive against the cam profile. This is a bit of early speculation without a whole lot of information so please don't draw conclusions just yet.

Paul Lohr

 

[TurboBuick86]

Flat tappet's fine. Gone as fast as 9.3's @ 145 with it. Don't see nothing wrong with it! "IJS"


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