CANTONRACER

I have been talking to him for a while now, pretty nice, no bs type of guy.

He thinks I should get this cam.

106 CL with + 2 deg put in, @.050 257/261, with 1.6 rr's .688/.688 lift and a ramp design called TK285.

Said it should be very nasty and make very good power.

It will go with my AFR 210's with the following flow #'s(which have been improved since I last spoke with him, but I did not get the updated #'s)

AFR 210's 2.19/1.62

LIFT---INT--EXH--I/E%
0.200--168--112--0.67
0.300--222--151--0.68
0.400--262--206--0.79
0.500--289--218--0.75
0.600--307--232--0.76
0.700--310--246--0.79

Rest of combo is 396", 5.850" rod, Kook's headers, fully ported LT4 intake, th400, 12 bolt...etc..you get the point.

My biggest concern is spring life because that cam is going to need decent seat pressure.

Any thoughts? He is competes in these engine master competitions and knows a hell of a lot more than I do...probably ever.

BUBBA

Well, I sure don't know, but with an engine like that, I assume that you are going to be doing alot of track stuff (assuming that you are going with a 12 bolt or 9'' rear end). If N/A I assume you will be going with everything "big" including TB, Fuel Pump, Injectors, etc.

I realize, I haven't said anything worthwhile here, but as I said: this looks like a strictly track car to me, right?

CANTONRACER

Some street use...fuel, electronics, etc...I have it all covered.

SStrokerAce

I would back off from the TK lobes since you are going to have a ton of seat pressure to run them and that's not going to make the lifters live a long time on a street motor.

106 is normal on a 400 cube motor but it might be a tad too little.

Bret

CANTONRACER

I really don't have a problem with running a lot of seat pressure because I really want to squeeze some good power out of this combo.

If I get a season out of the combo, i would be ok with that. The car will be driven around locally, but trailered to the track.

rskrause

You are going to need very high tech springs to get any decent life at that lift. NASCAR quality stuff. A "season" means different things to different people. From what I have seen, ~0.600" valve lift is pushing the limits for a street motor. Obviously, top notch components will be needed in all other areas: valves. locks and retainers, rockers. pushrods, and so on. I think you really need to consider shaft mounts for that type of setup.

Rich

SStrokerAce

Just my thoughts are that you don't need the TK's to get everything out of it..... If you don't have the right parts with them you will not make more power but less.

Bret

rskrause

And maybe not make it very long. Those lobes are pretty tough on parts (especially the wrong parts) as I understand it. According to Comps catalog the TK series are "excellent for all-out Late Model and Sprint Car applications" and you should "consult with one of our Engine Builder Sales personnel before using these profiles to reduce the risk from improper component selection". This does not seem to be anything you would use in a street/strip car or anything other than an all-out high rpm race combo with absolute top quality (and light) valve train components. If, for whatever reason, you wanted to try them I'd suggest 1.5:1 rockers to tame the lift a little bit and decrease valve acceleration. With 1.5:1 rockers the lift is 0.645". Still big but more compatible with spring life.

If you try this, I'd be curious to know how it works out.

Rich

CANTONRACER

I called Comp Cams and spoke with the tech about a small base circle setup. He asked about my setup and I told him my specs, etc...and told him the cam my local engine guy told me.

You know what he said about the cam..

"That is the exact cam I would run if I had your setup".

I thought that was interesting.

Thought I would share.

rskrause

You haven't been too specific about how you will use this car. But I would be surprised (and pleased for you) if it works for street/strip use. It looks a lot like a race cam to me, but good luck and keep us informed.

Rich

CANTONRACER

I told them limited street use, primarily drag use.

I'll give it a try for a season and see how I like it.

WS Sick

I know I'll be listening with interest.

1-bad-z28

that thing is not going to idle worth a crap. You will be lucky if you can drive it anywhere under 3k rpm's.

JustNO

LOL So I just got mail from my camshaft expert.. He said to me that I should go 236/248 555/533 110lsa What are you saying for this shiiiit?? he knows that I will go 200 wet shot nitrous and also I drive every day,not a drag car.. Suggestions are very bad these times

brain

That cam isn't that big, especially for a hot 396. We had a 260/260 .650/.640 lift in my friends 436 windsor stroker with AFR 225s. Car idled very nice and you could start off in 3rd gear with no problems. It ran like a raped ape too. Made 510 rwhp, can't remember the torque exactly. The car was VERY driveable, even with a carb. If you are going to do a good but of street driving, I would keep the lift to .650 as well.