Ideal roller cam

[49-blues]

What would be the ideal roller cam for the street-210/210? , 212/212? or other?

 

[SPECTRA PREMIUM]

206/206 from Weber

 

[Nick Micale]

The Comp 206/206 ductile roller fits like a stock cam w/o the needed machine work, and is much less costly than a billet.

Great grind for the street! Gives lots of low end power and pulls strong through the gears.

 

[49-blues]

Thanks- Nick i ve read that both the ductile roller and a billet are very similar in costs. Could you give me a price comparison for both completely installed ? Any issues with either one? As in additional costs for special springs or anything. Would the 206/206 cam be enough for a girdled, champ iron head block with a 70 bb turbo and 75 injectors? this is what im in the process of getting built right now and would like a good strong streetable roller cam.

 

[Nick Micale]

The billet roller kit with a Weber-type install kit would run about $1200. With his kit, or ours, both of which are Comp supplied cams, and have all machine work done to cam, gear and special bearing retainer. The timing cover also needs to be machined.

The Comp ductile roller kit runs about $850 and is fully ready to install. We use the shim-type roller cam button which runs ~$50. Comp recommends/supplies 110# springs with this set up which we have seen run in excess of 6000 RPM.

For a primarily street application, a 206/206 is a very good choice. When using the BB 70 and big injectors, my choice would be a 214/210 for more top end charge.

 

[the wrath]

where do you buy the comp cams 206/206 from what webrites have it and which are the cheapest

 

[the wrath]

what type of machineing do you need to do to the timing cover is it hard to do

 

[49-blues]

Good info- thanks Nick., Does comp cams make a 214/210 ductile roller or only the 212/212- i guess i might have to go with that.I was hoping for a roller cam that has a larger exhaust pattern like a 204/214. Do you know if any of these type cams are in the works in the near future?

 

[Nick Micale]

The 214/210 and other profiles can be special ordered in the ductile roller line.

The timing cover needs to be machined to a specific depth from the mating surface to fit the "Weber-type" billet cam roller button.

 

[chevyII]

I hate to hijack but since the topic came up. Nick do you recomend a longer intake or exhaust duration, 204-210, 214-210? Seems like people run both ways?

 

[BoostKillsStres]

Nick,
So the Comp kit k69-200-8 for the 206/206 is a direct bolt in w/ no machining needed, right? It appears this kit contains everything except the adjustable button as you said #269 and pushrods. Are pushrods needed or if your doing a head swap at the same time would it be better to measure for a possible custom length?

 

[broke1]

IMO if your putting in a roller cam you should also go ahead and put on roller rockers.Then you wouldnt need custom length pushrods.No need to start cheaping out now.

I run the 218-212 ductile roller in my 85

 

[Nick Micale]

Originally posted by chevyII
I hate to hijack but since the topic came up. Nick do you recomend a longer intake or exhaust duration, 204-210, 214-210? Seems like people run both ways?

My experience over the years has been with many 214/210 installs and they perform great is into the 10's with good street manners. No personal experience with the 204/210.

We use an off-the-shelf pushrod for the Comp kit with stock rockers and fit is perfect. However, do recommend new heavy rocker shafts when going with a roller cam.

 

[JCotton]

We've been using and selling the new ductile Comp cams since they came out, have come across several important points that need to be considered when installing these cams. First off, they have several excellent grinds we use and recommend depending on what results are being looked for. We use several different spring packages depending on what heads and who is doing the work. Some require specialty equipment to install properly, some can be done by the do-it-yourselfer. For pushrods, trying to supply a standard size for a combination may not work since there are so many different thickness head gasket combos, heads and or block decks may be shaved and other factors. We highly recommend a roller rocker set up to go with the roller cams to make the job easier and more exact. Over the years i have seen too many stock and aftermarket replacement rocker shafts break, not fun..... I've never seen the shaft style roller rocker shafts break. As for the adjustable cam button, we supply that and recommend it with the roller cam. The only problem there is it usually does not work by just adding or removing shims. Machining (carefuly grinding) on the front cover button surface area or removing material on the flat surface of the cam button insert is most likely necessary to achieve proper clearance. It's not very difficult to do, easier to do once you've experienced it..... I plan on contacting CC next week to see if we can clearance the button more for easier assembly.

When we put a kit together we try to do it with the customer according to their needs. Everyones is a little different.
hope that helps

 

[49-blues]

I already have a new set of T&D roller rockers to use on a new set of champ irons- thanks for all the input.