Comp Cams "Nostalgia Plus" N+L79H OR N+30-30H cams?
06-13-2006, 10:53 AM
#1
Pro
Thread Starter
Comp Cams "Nostalgia Plus" N+L79H OR N+30-30H cams?
I've been a little unsure whether to go for an L79 cam or something a little hotter in my 327.
I came across this earlier today and it definately caught my eye. Supposedly they claim to have the sound of the original cam but improved power of modern cam design.
They claim:
"The famous factory camshafts meet the future.
These famous factory camshafts of the past are combined with the latest advanced camshaft technology to give you the sound and excitement of the musclecar era. These Nostalgia Plus cams are specifically designed to capture the essence of the original '60s musclecar, with additional power you can feel in the seat of your pants. The new technology creates awesome response, to give new life to any hot rod."
They have Hydraulic "Nostalgia" versions of the 327/300hp, L79 & 30-30 cams along with a solid 30-30 variant.
From the Comp Cams site: http://www.compcams.com/information/...yID=1143295200
The numbers of the ones I would consider are:
N+L79H :
Duration @ .050 : 229 int./236 exh.
Valve Lift : 0.468 int./0.462 exh.
Lobe Separation : 112
Claimed RPM range 1,800-6,200rpm
For comparison, stock L79 specs: 222 int. & exh. @ .050 / .447 Int. & Exh. lift with 114 Sep. 1800-5800rpm range
N+30-30H :
Duration @ .050 : 239 int./246 exh.
Valve Lift : 0.483 int./0.477 exh. lift
Lobe Separation : 112
Claimed RPM range 2,300-6,500rpm
Even though I listed it, I'm not too much on the N+30-30H being that it would probably be a dog down low with my 3.36 gears.
The N+L79H though looks to be just the ticket for me. I should still have the coolness of having an L79 sound (they claim), but with more duration & lift for a lot more power. I'm assuming from the tighter lobe seperation and identical lower rpm range that I won't take a hit in low end driveability/torque in relation to a "real" L79 cam.
I think I've decided on my cam . Any thoughts or suggestions?
If it matters my 66 is a 327 muncie with 3.36 rear gears. I'll probably be using Trick Flow aluminum heads which will give me 10.3-10.4:1compression. If I decide to go with Dart Iron Eagles instead (not likely though), I'll be running approx 9.35:1.
I previously posted this on the C1/C2 board, but only got a couple of responses. Maybe some of you guys might be able to add something,
I came across this earlier today and it definately caught my eye. Supposedly they claim to have the sound of the original cam but improved power of modern cam design.
They claim:
"The famous factory camshafts meet the future.
These famous factory camshafts of the past are combined with the latest advanced camshaft technology to give you the sound and excitement of the musclecar era. These Nostalgia Plus cams are specifically designed to capture the essence of the original '60s musclecar, with additional power you can feel in the seat of your pants. The new technology creates awesome response, to give new life to any hot rod."
They have Hydraulic "Nostalgia" versions of the 327/300hp, L79 & 30-30 cams along with a solid 30-30 variant.
From the Comp Cams site: http://www.compcams.com/information/...yID=1143295200
The numbers of the ones I would consider are:
N+L79H :
Duration @ .050 : 229 int./236 exh.
Valve Lift : 0.468 int./0.462 exh.
Lobe Separation : 112
Claimed RPM range 1,800-6,200rpm
For comparison, stock L79 specs: 222 int. & exh. @ .050 / .447 Int. & Exh. lift with 114 Sep. 1800-5800rpm range
N+30-30H :
Duration @ .050 : 239 int./246 exh.
Valve Lift : 0.483 int./0.477 exh. lift
Lobe Separation : 112
Claimed RPM range 2,300-6,500rpm
Even though I listed it, I'm not too much on the N+30-30H being that it would probably be a dog down low with my 3.36 gears.
The N+L79H though looks to be just the ticket for me. I should still have the coolness of having an L79 sound (they claim), but with more duration & lift for a lot more power. I'm assuming from the tighter lobe seperation and identical lower rpm range that I won't take a hit in low end driveability/torque in relation to a "real" L79 cam.
I think I've decided on my cam . Any thoughts or suggestions?
If it matters my 66 is a 327 muncie with 3.36 rear gears. I'll probably be using Trick Flow aluminum heads which will give me 10.3-10.4:1compression. If I decide to go with Dart Iron Eagles instead (not likely though), I'll be running approx 9.35:1.
I previously posted this on the C1/C2 board, but only got a couple of responses. Maybe some of you guys might be able to add something,
06-13-2006, 11:28 AM
#2
Le Mans Master
I have a crane repro of the 327/350hp(L79). My cam card says 222@.050 and .442 lift. The cam has a smooth idle but does have a very slight lope, just a slow lope but you can atleast hear it. With my stock 71 350, its out of steam at 4800
06-13-2006, 11:40 AM
#3
Le Mans Master
Ron
cams have been discussed MANY, MANY, MANY times in the C1/C2 section and for the 327 motor is concensus seems to be the LT1 cam is most likely your best choice. It's a "hotter" cam than the L79 and very similar to the 30-30 but gives better low end torque than the 30-30 with very little loss at the top end.
When it somes to engine system engineering and especially cam info and selection this is the cam that SWCDuke always recommended and there aren't many people in the COUNTRY that are going to know more about cams and engine system design on the vintage motors than Duke.
Do a search in the C1/C2 forums under cams and SWCDuke and there will be tons of info for you to review.
cams have been discussed MANY, MANY, MANY times in the C1/C2 section and for the 327 motor is concensus seems to be the LT1 cam is most likely your best choice. It's a "hotter" cam than the L79 and very similar to the 30-30 but gives better low end torque than the 30-30 with very little loss at the top end.
When it somes to engine system engineering and especially cam info and selection this is the cam that SWCDuke always recommended and there aren't many people in the COUNTRY that are going to know more about cams and engine system design on the vintage motors than Duke.
Do a search in the C1/C2 forums under cams and SWCDuke and there will be tons of info for you to review.
06-13-2006, 12:30 PM
#4
Melting Slicks
06-13-2006, 12:31 PM
#5
Le Mans Master
But in answering your question...don't go with the oldschool L79 cam, especially if you spent some decent money on heads. Maybe try a Comp XE series. You one you posted look pretty good also.
06-13-2006, 12:50 PM
#6
Le Mans Master
Ron,
A 30-30 replacement is dumb. I run a stock 30-30 solid lifter cam only because it is correct and it is a DOG below 3500 RPM. Works fine up to 7000 RPM (where I have it limited) even with stock valve springs. You have to change the springs out if you go there often as the RPMs are hard on them. Idle is 950 RPM at best and not that stable. Don't run it.
The 327/350 HP cam needs some compression to work right. 10:1 is probably good. If you want a better bottom end you should advance the cam 4 degrees. That gives you better bottom end but does not hurt much at the top with that cam. Lots of RPM potential there. Nothing wrong with it as long as you have the compression to go with it.
The 350/350 cam is similar. I run one with 10.4 C/R and have it timed straight up. A little soft on the bottom but revs as high as I dare. No big lope just a little bit at idle. I like it.
Or you can go solid with the LT-1. Needs compression there as well.
-Mark.
A 30-30 replacement is dumb. I run a stock 30-30 solid lifter cam only because it is correct and it is a DOG below 3500 RPM. Works fine up to 7000 RPM (where I have it limited) even with stock valve springs. You have to change the springs out if you go there often as the RPMs are hard on them. Idle is 950 RPM at best and not that stable. Don't run it.
The 327/350 HP cam needs some compression to work right. 10:1 is probably good. If you want a better bottom end you should advance the cam 4 degrees. That gives you better bottom end but does not hurt much at the top with that cam. Lots of RPM potential there. Nothing wrong with it as long as you have the compression to go with it.
The 350/350 cam is similar. I run one with 10.4 C/R and have it timed straight up. A little soft on the bottom but revs as high as I dare. No big lope just a little bit at idle. I like it.
Or you can go solid with the LT-1. Needs compression there as well.
-Mark.
