Chevy High Performance has it listed in the 6 cool engine combos article in this mounths mag. They say it's a Crane Cams grind with 0.510/0.520 lift and 210/214 dur on a114 LSA. Sounds like a nice mild cam too me.

Steve

 

Almost exactly like the LPE 219 that I would run in a TBI headed 305 or 350.

 

Yeah, that looks like a nice cam, the 114 LSA would make nice power down low.

Did ya see the build with the new vortecs? The new bigger ports look pretty mean.

 

i so wish i could stick those new vortec's on my car instead of the L31s but right now they're twice as much. they are badass heads though

 

I don't consider a cam with over .500 lift in a 305 to "mild" by any means.

 

No it really isn't 'mild' I have a 206/216 .447 .447 112 cam in my car, it took a significant amount of tuning.

Although a couple of years ago, I do beleive I said, that something along the lines of 210-212 intake duration would be about what you wanted with a descent set of heads on a TBI motor. (I actualy ordered a 210/218 .492 .492 112 cam, but got the one with the specs listed above, then the company went out of buisness, so I was stuck with it, and ran it, since I had it.)

 

I think mild is a very objective word, that we all have diferent meanings for.

It seems you look at the "Totality of circumstances" in that lift and duration are both a part of the picture. Maybe he just looks at duration for "Cam mildness or wildness", feeling that large lift is beneficial at any power range?

Just trying to prevent an arguement before it ges fired up

 

Obviously it's an subjective term, but I'm must trying to prevent some of the less experience types on here from going out and buying a similiar sized cam, being under the impression that it is mild. A cam that large would kill any milage they might have and be hard as hell to tune.

However, I agree with you that the duration is fine for the street. I would never go above 220 for any daily driven street vehicle personally. Even the cam for my 350 is 204/214 . . . nice, early, long and flat.

 

Are we talking about a cam or a girl here?

 

now that's just not cool man.

 

The reason I said it was a mild cam is that compared the biggest stock 305/350 tpi cam it only has more lift and a couple deg differance in intake duration and lsa. Here's the specs... 305 5spd / 350 AT 10066049* .415 .430 207 213 117.0 (116/-118). Would you concider our stock cam with just more lift, say in the 0.450 range a mild cam? I don't think it would run much better if at all even with say a good set of 305tpi heads (comparing both cams with the same heads). I still say it's a mild cam. Whats the specs on the lt1 cam?

Steve

 

Your post is confusing me a little. If you're trying to say that a cam with .450 lift is mild in a 305, I could agree to that, but stuffing a cam with over .500 lift in a 305 is not mild, nor easy to tune with TBI.

 

Its not the lift that makes a cam wild or mild. It is the duration and lobe seperation angle. Narrower angles make more power period but less vacuum. More duration makes more power but less vacuum. Vacuum= ease of TBI tuning.

 

Duration has more effect on where the powerband is. Lift is where the peak power is made.

But I do agree, with more vacuum it is easier to tune, but that's with any injection system. . . . TBI gets irked by anything lower than 115

 

Gunny,

Lift really has nothing to do with it, its all about the overlap, which total lift has nothing to do with. The only time the lift even plays into this, is when you are figuring overlap, because the faster ramp speeds make the lift during the overlap a hair more, thus slightly less vacume.

 

lift directly relates to flow, thats why when you flow bench you take the flow rate for various amounts of lift.

 

yes, but it doesn't directly relate to tuneability like the duration and LSA do.

 

But for the HP levels that a cam with over .500 lift is going to create, the full tables alone are going to be a PITA, especially with a TBI.

 

TBI isn't anymore difficult to tune than speed density TPI. After all the logic in the ECMs is very similar. Basically with the TBI all you are doing is advancing the timing a little and dumping fuel as you get higher in RPM.

 

gunny, getting those tables right isn't hard. It is dealing with the overlap, and it causing your o2 sensor to read falsly lean.

 

That and the fact a huge cam has alot of self EGR within the intake tract. Ever notice the LT4 doesn't have an egr valve.

 

Really? How GM get that one around the GreenLeaf ****'s? I know the newest LS1's didn't have them, but the LT4's?

 

Well, since we are on the subject of cams and tuning. I have a 350 sitting right now waiting on heads. I recently bought a '91 TBI camaro. What about this cam? Would a tune be possible?

Operating Range: 1800-6000 RPM
Duration Advertised: 274° Intake / 286° Exhaust
Duration @ .050'' Lift: 230° Intake / 236° Exhaust
Valve Lift w/1.5 Rockers: .490'' Intake / .490'' Exhaust
Lobe Separation Angle: 110°

 

Its a little wild for a TBI application. Not to say that it cannot be tuned but could be a hair puller to make the low speed sections run right.

 

200 hours a you might have a good tune. That cam with tbi is going to need a high stall convertor or stick shift.

 

I was thinking about taking it out and selling it. Or just put it in a different motor that is Carbed. maybe get a custom grind.