Not since the first race or two, the guy ran 13.0's but I think the idle quality was described as 'less than stock'..........
Donny, I am thinking you oughta build that beast, if you need a driver (having 2 cars and all) I would be more than happy to crank it down the track :Brow:
A L79 motor always sounded a little hot to me, I wonder if they did vacum test on it or just went by the sound?
from what I know, the car sounded way more lopey than it should have. it was early in event history, but Dan and Bob would have known what a L79 shouold sound like.
Huh ?? What did I do now ?? all I am doing is answering a question about if a L-79 Nova had ever been run. I saw the 1998 article and asked about the car, and that is what I was told.......
Don't know the exact specs on an original L79 cam, but the general technology of cars like that at the time, was a lot of duration and overlap and not as much lift. That bled off a lot of cylinder cranking pressure on those very high compression engines. Doesn't work so well on lower compression or low RPM's. Was that L79 a solid lifter engine? Put a vacuum hose on a 308 cammed W31 (or 66/67 W30) and you'll think you need a new vacuum gauge. Try to put one on the 328 cammed 69-70 W30 stick cars and you better hook it up before it's started. It'll be shaking all over the place and hard to connect. There will be no steenikn vaccum on that one, very little on the 308. What's the definition of an absence of vacuum, since it's an absence of atmospheric pressure? Damn that hurts my brain. Nap time. I got eaten alive by a bone stock 66 L79 in my B/MP Valiant years ago, not just once, but every way we tried them. (Dead stop, 20 MPH roll, 40 MPH roll). I could almost swear I saw air under the front tires when he shifted it and this thing was showroom new. If you build one of these, make sure you have the correct side marker lamps on it. :laugh: :laugh: :laugh: :laugh: :laugh: Right Jim?
the L-79 is Chevy's highest horsepower hydraulic cammed motor mine is correctly cammed and thumps some........but the sidepipes help
GEERSNBEERS -- WELCOME !! to the forum. I see in your avatar a *Motion* sticker. Is that something in your stable ??? Very cool if it is.
Alright, I will bite, when did I 'help' the tech guys and on who's car ??? feel free to PM the info to me, if you don't want to post it here.
I think that is what we are all here for, aren`t we? :beer I have a photo of one at the track back in I think 67 I would like to show but..... it for some reason will not let me upload. I`ll try later to get it up again
thanks! had a '70 motion camaro. bought it used. stolen. never to be seen again. just pure stockin' now. :TU:
Dave H, The specs on the L79 (Donny, correct me if I'm wrong) are 222/222 (at .050) 306 Advertised, and 447 lift on 114 centers. The one's I've had pulled like stink above 3200, ran like stink below. I think I used to pull around 6500 with the one (327) in my 69 camaro. As I remember it idled pretty smooth around 850, nice lope if you idled it down for cruisin' Woodward. I think the cams have come a long way since then!
the cam as described by GM performance is The duration at lash point in degrees (intake/exhaust) is 320/320; duration at .050 tappet lift (intake/exhaust) is 221/221 maximum lift with 1.5:1 rocker ratio (intake/exhaust) is 447/447. Valve lash is zero/zero and lobe centerline is 114 degrees. the cam as described by Comp Cams is Cam Style: Hydraulic flat tappet Basic Operating RPM Range: 1,800-5,800 RPM Intake Duration at 050 inch Lift: 222 Exhaust Duration at 050 inch Lift: 222 Duration at 050 inch Lift: 222 int./222 exh. Advertised Intake Duration: 342 Advertised Exhaust Duration: 342 Advertised Duration: 342 int./342 exh. Intake Valve Lift with Factory Rocker Arm Ratio: 0.447 in. Exhaust Valve Lift with Factory Rocker Arm Ratio: 0.447 in. Valve Lift with Factory Rocker Arm Ratio: 0.447 int./0.447 exh. lift Lobe Separation (degrees): 114 Intake Valve Lash: 0.000 in. Exhaust Valve Lash: 0.000 in. Computer Controlled Compatible: No Grind Number: 151H Quantity: Sold individually. Notes: Replaces factory ID number 3863151. As described by Crane Blueprint Cam Style: Hydraulic flat tappet Basic Operating RPM Range: 2,200-5,200 RPM Intake Duration at 050 inch Lift: 222 Exhaust Duration at 050 inch Lift: 222 Duration at 050 inch Lift: 222 int./222 exh. Intake Valve Lift with Factory Rocker Arm Ratio: 0.447 in. Exhaust Valve Lift with Factory Rocker Arm Ratio: 0.447 in. Valve Lift with Factory Rocker Arm Ratio: 0.447 int./0.447 exh. lift Lobe Separation (degrees): 114 Intake Valve Lash: 0.000 in. Exhaust Valve Lash: 0.000 in. Computer Controlled Compatible: No Grind Number: 3863151 Quantity: Sold individually. Notes: Meets memorandum 1-A for original applications. I find the motor runs outta steam around 6200, but then again, I ran the motor with a hanging exhaust valve, too
I am still waiting for that PM........ Hell, if it was a Chevy I can probably help find the right parts :beer
