Edelbrock Top End Package
Drifting
Joined: Apr 2007
Posts: 1,892
Likes: 3
From: Springfield Illinois
aaaaaaaaaaaah sorry, I though that was the "I agree" sign, not the "bs" flag (my personal favorite). Good, thanks for the heads up. Where are the specs for that cam? Summit doesn't list any of the specs that come with it. Thats why I chose the comp cam that I did.
What do you think of the Comp cam that I selected with that package?
What do you think of the Comp cam that I selected with that package?
aaaaaaaaaaaah sorry, I though that was the "I agree" sign, not the "bs" flag (my personal favorite). Good, thanks for the heads up. Where are the specs for that cam? Summit doesn't list any of the specs that come with it. Thats why I chose the comp cam that I did.
What do you think of the Comp cam that I selected with that package?
What do you think of the Comp cam that I selected with that package?
Intake Duration at 050 inch Lift: 234
Exhaust Duration at 050 inch Lift: 244
Duration at 050 inch Lift: 234 int./244 exh.
Advertised Intake Duration: 308
Advertised Exhaust Duration: 318
Advertised Duration: 308 int./318 exh.
Intake Valve Lift with Factory Rocker Arm Ratio: 0.488 in.
Exhaust Valve Lift with Factory Rocker Arm Ratio: 0.510 in.
Valve Lift with Factory Rocker Arm Ratio: 0.488 int./0.510 exh. lift
Lobe Separation (degrees): 112
As you can tell, it is far from mild. The cam is truely high performance street cam. If you are looking for ***** to wall performance with little maintenance (vs. the solid flat tappet), I assure you that you wont be disappointed. This is not to say it is the most powerful set-up, but a very respectable set-up.
As far as the cam you selected, it will definitely work. I don't have any experience with it, but based off of videos I've seen, it sounds healthy. I think you ought to give the Performer RPM a try, if it is too much cam then I'd fall back on the 286. If you are worried about mileage, the performer RPM cam shoudln't even be an option. Also, if you did go with the performer RPM, make sure you have a good cooling system because it will definitely need it!
Melting Slicks
Joined: May 2006
Posts: 3,438
Likes: 41
From: Raleigh NC
St. Jude Donor '13-'14
Here are the specs for the hydraulic flat tappet Performer RPM cam:
Intake Duration at 050 inch Lift: 234
Exhaust Duration at 050 inch Lift: 244
Duration at 050 inch Lift: 234 int./244 exh.
Advertised Intake Duration: 308
Advertised Exhaust Duration: 318
Advertised Duration: 308 int./318 exh.
Intake Valve Lift with Factory Rocker Arm Ratio: 0.488 in.
Exhaust Valve Lift with Factory Rocker Arm Ratio: 0.510 in.
Valve Lift with Factory Rocker Arm Ratio: 0.488 int./0.510 exh. lift
Lobe Separation (degrees): 112
As you can tell, it is far from mild. The cam is truely high performance street cam. If you are looking for ***** to wall performance with little maintenance (vs. the solid flat tappet), I assure you that you wont be disappointed. This is not to say it is the most powerful set-up, but a very respectable set-up.
As far as the cam you selected, it will definitely work. I don't have any experience with it, but based off of videos I've seen, it sounds healthy. I think you ought to give the Performer RPM a try, if it is too much cam then I'd fall back on the 286. If you are worried about mileage, the performer RPM cam shoudln't even be an option. Also, if you did go with the performer RPM, make sure you have a good cooling system because it will definitely need it!
Intake Duration at 050 inch Lift: 234
Exhaust Duration at 050 inch Lift: 244
Duration at 050 inch Lift: 234 int./244 exh.
Advertised Intake Duration: 308
Advertised Exhaust Duration: 318
Advertised Duration: 308 int./318 exh.
Intake Valve Lift with Factory Rocker Arm Ratio: 0.488 in.
Exhaust Valve Lift with Factory Rocker Arm Ratio: 0.510 in.
Valve Lift with Factory Rocker Arm Ratio: 0.488 int./0.510 exh. lift
Lobe Separation (degrees): 112
As you can tell, it is far from mild. The cam is truely high performance street cam. If you are looking for ***** to wall performance with little maintenance (vs. the solid flat tappet), I assure you that you wont be disappointed. This is not to say it is the most powerful set-up, but a very respectable set-up.
As far as the cam you selected, it will definitely work. I don't have any experience with it, but based off of videos I've seen, it sounds healthy. I think you ought to give the Performer RPM a try, if it is too much cam then I'd fall back on the 286. If you are worried about mileage, the performer RPM cam shoudln't even be an option. Also, if you did go with the performer RPM, make sure you have a good cooling system because it will definitely need it!
Ever seen this?:
Intake Duration @ .050 Recommended CR
210 8.5-9.5:1
210-220 9-9.5:1
220-230 10:1
230-240 10.5-11:1
240 and up 11:1 or greater
For an engine thats gonna be ~10:1 compression, both these seem a bit large, which would hurt my low end. Is that table above a little conservative?
Drifting
Joined: Apr 2007
Posts: 1,892
Likes: 3
From: Springfield Illinois
I've never seen that table. I would say they are a little conservative. My dad's engine measured out to be 10.26:1 compression with the stock 76cc head which actually measured out to be 74cc. Keep in mind, his heads have a lot of work into them and I would bet money they outflow edelbrock's heads. Does this answer your question?
Drifting
Joined: Apr 2007
Posts: 1,892
Likes: 3
From: Springfield Illinois
EDIT: Here is sound clip of edelbrock's cam from their website in a 383: http://www.edelbrock.com/automotive_...Camaro2006.mp3
They don't rev it high enough for the engine to really talk to ya, but I think you can get the idea.
Last edited by FRSTR90; Jan 24, 2008 at 04:37 PM.
Drifting
Joined: Aug 2005
Posts: 1,682
Likes: 3
From: League City TX
Here are the specs for the hydraulic flat tappet Performer RPM cam:
Intake Duration at 050 inch Lift: 234
Exhaust Duration at 050 inch Lift: 244
Duration at 050 inch Lift: 234 int./244 exh.
Advertised Intake Duration: 308
Advertised Exhaust Duration: 318
Advertised Duration: 308 int./318 exh.
Intake Valve Lift with Factory Rocker Arm Ratio: 0.488 in.
Exhaust Valve Lift with Factory Rocker Arm Ratio: 0.510 in.
Valve Lift with Factory Rocker Arm Ratio: 0.488 int./0.510 exh. lift
Lobe Separation (degrees): 112
As you can tell, it is far from mild. The cam is truely high performance street cam. If you are looking for ***** to wall performance with little maintenance (vs. the solid flat tappet), I assure you that you wont be disappointed. This is not to say it is the most powerful set-up, but a very respectable set-up.
Intake Duration at 050 inch Lift: 234
Exhaust Duration at 050 inch Lift: 244
Duration at 050 inch Lift: 234 int./244 exh.
Advertised Intake Duration: 308
Advertised Exhaust Duration: 318
Advertised Duration: 308 int./318 exh.
Intake Valve Lift with Factory Rocker Arm Ratio: 0.488 in.
Exhaust Valve Lift with Factory Rocker Arm Ratio: 0.510 in.
Valve Lift with Factory Rocker Arm Ratio: 0.488 int./0.510 exh. lift
Lobe Separation (degrees): 112
As you can tell, it is far from mild. The cam is truely high performance street cam. If you are looking for ***** to wall performance with little maintenance (vs. the solid flat tappet), I assure you that you wont be disappointed. This is not to say it is the most powerful set-up, but a very respectable set-up.
Product Line: Lunati Voodoo Camshafts
Part Type: Camshafts
Cam Style: Hydraulic flat tappet
Basic Operating RPM Range: 2,200-6,400
Intake Duration at 050 inch Lift: 233
Exhaust Duration at 050 inch Lift: 241
Advertised Intake Duration: 276
Advertised Exhaust Duration: 284
Intake Valve Lift with Factory Rocker Arm Ratio: 0.504 in.
Exhaust Valve Lift with Factory Rocker Arm Ratio: 0.525 in.
Lobe Separation (degrees): 110
Compare the advertised duration numbers. The Voodoo cam is 30° shorter that the generic Edelbrock grind.
It will give all of the top end performance of the Edelbrock cam and MUCH better manners down low.
There is a reason people talk bad about those cams. As cam grinders go, Edelbrock makes great intake manifolds.
Buy your cam from a cam company.
Melting Slicks
Joined: May 2006
Posts: 3,438
Likes: 41
From: Raleigh NC
St. Jude Donor '13-'14
Now compare those numbers with a modern cam with similar .050" #'s. Here are the specs for a Lunati Voodoo cam. Part # 60104
Product Line: Lunati Voodoo Camshafts
Part Type: Camshafts
Cam Style: Hydraulic flat tappet
Basic Operating RPM Range: 2,200-6,400
Intake Duration at 050 inch Lift: 233
Exhaust Duration at 050 inch Lift: 241
Advertised Intake Duration: 276
Advertised Exhaust Duration: 284
Intake Valve Lift with Factory Rocker Arm Ratio: 0.504 in.
Exhaust Valve Lift with Factory Rocker Arm Ratio: 0.525 in.
Lobe Separation (degrees): 110
Compare the advertised duration numbers. The Voodoo cam is 30° shorter that the generic Edelbrock grind.
It will give all of the top end performance of the Edelbrock cam and MUCH better manners down low.
There is a reason people talk bad about those cams. As cam grinders go, Edelbrock makes great intake manifolds.
Buy your cam from a cam company.
Product Line: Lunati Voodoo Camshafts
Part Type: Camshafts
Cam Style: Hydraulic flat tappet
Basic Operating RPM Range: 2,200-6,400
Intake Duration at 050 inch Lift: 233
Exhaust Duration at 050 inch Lift: 241
Advertised Intake Duration: 276
Advertised Exhaust Duration: 284
Intake Valve Lift with Factory Rocker Arm Ratio: 0.504 in.
Exhaust Valve Lift with Factory Rocker Arm Ratio: 0.525 in.
Lobe Separation (degrees): 110
Compare the advertised duration numbers. The Voodoo cam is 30° shorter that the generic Edelbrock grind.
It will give all of the top end performance of the Edelbrock cam and MUCH better manners down low.
There is a reason people talk bad about those cams. As cam grinders go, Edelbrock makes great intake manifolds.
Buy your cam from a cam company.
Drifting
Joined: Aug 2005
Posts: 1,682
Likes: 3
From: League City TX
Corvette Stories
The Best of Corvette for Corvette Enthusiasts
Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer
Brett Foote
10 Things Every Corvette Owner Needs (2026 Edition)
Michael S. Palmer
8 Most "Only Corvette Owners Understand" Quirks and Problems
Pouria Savadkouei
10 Reasons the C6 Z06 is Still A Performance Benchmark After 20 Years
Joe Kucinski
How Much Horsepower Every Corvette Engine "LOST" in 1972
Joe Kucinski
Top 10 DOs and DON'Ts for Protecting Your Convertible Top!
Michael S. Palmer
Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!
Joe Kucinski
150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter
Joe Kucinski
8 Coolest Corvette Pace Cars (and Replicas) of All Time
Verdad Gallardo
Drifting
Joined: Apr 2007
Posts: 1,892
Likes: 3
From: Springfield Illinois
Now compare those numbers with a modern cam with similar .050" #'s. Here are the specs for a Lunati Voodoo cam. Part # 60104
Product Line: Lunati Voodoo Camshafts
Part Type: Camshafts
Cam Style: Hydraulic flat tappet
Basic Operating RPM Range: 2,200-6,400
Intake Duration at 050 inch Lift: 233
Exhaust Duration at 050 inch Lift: 241
Advertised Intake Duration: 276
Advertised Exhaust Duration: 284
Intake Valve Lift with Factory Rocker Arm Ratio: 0.504 in.
Exhaust Valve Lift with Factory Rocker Arm Ratio: 0.525 in.
Lobe Separation (degrees): 110
Compare the advertised duration numbers. The Voodoo cam is 30° shorter that the generic Edelbrock grind.
It will give all of the top end performance of the Edelbrock cam and MUCH better manners down low.
There is a reason people talk bad about those cams. As cam grinders go, Edelbrock makes great intake manifolds.
Buy your cam from a cam company.
Product Line: Lunati Voodoo Camshafts
Part Type: Camshafts
Cam Style: Hydraulic flat tappet
Basic Operating RPM Range: 2,200-6,400
Intake Duration at 050 inch Lift: 233
Exhaust Duration at 050 inch Lift: 241
Advertised Intake Duration: 276
Advertised Exhaust Duration: 284
Intake Valve Lift with Factory Rocker Arm Ratio: 0.504 in.
Exhaust Valve Lift with Factory Rocker Arm Ratio: 0.525 in.
Lobe Separation (degrees): 110
Compare the advertised duration numbers. The Voodoo cam is 30° shorter that the generic Edelbrock grind.
It will give all of the top end performance of the Edelbrock cam and MUCH better manners down low.
There is a reason people talk bad about those cams. As cam grinders go, Edelbrock makes great intake manifolds.
Buy your cam from a cam company.
Drifting
Joined: Aug 2005
Posts: 1,682
Likes: 3
From: League City TX
The cam is meant for high RPMs. I've already stated that. What I am saying is that it is no slouch in the lower-end. I've personally driven the car, I've ridden in the car at speeds above 155 MPH with a TH400 and 3.70. If you do the calculations, that is about 7500 RPMS with a P255/60r15. I know what an engine package like this is capable of.
You may believe it works well, and Im glad your happy with it, but if you havent driven
the same vehicle with a modern cam in it, you dont know the difference.
And by the way, you arent turning 7500 RPM's with that cam either.
Burning Brakes
Joined: Sep 2005
Posts: 832
Likes: 0
From: Sarasota Florida
for most applications i find that too expensive IMHO. you can buy a brand new pair of vortec heads from jegs, a brand new POLISHED aluminum intake manifold from professional products, nice chrome headers on ebay, a nice cam from summit, etc. etc. and it will cost much less...atleast it did for me. i seem to have been getting lucky lately with such good deals
Drifting
Joined: Apr 2007
Posts: 1,892
Likes: 3
From: Springfield Illinois
Nobody said that it didnt work well at high RPM's. They said it was a pig down low.
You may believe it works well, and Im glad your happy with it, but if you havent driven
the same vehicle with a modern cam in it, you dont know the difference.
And by the way, you arent turning 7500 RPM's with that cam either.
You may believe it works well, and Im glad your happy with it, but if you havent driven
the same vehicle with a modern cam in it, you dont know the difference.
And by the way, you arent turning 7500 RPM's with that cam either.
Drifting
Joined: Aug 2005
Posts: 1,682
Likes: 3
From: League City TX
The hydraulic roller is a different story. That cam isnt too bad.
A flat tappet hydraulic cam, the size of the the RPM cam just isnt big enough to make power at 7500. HP will peak somewhere around 6000 rpm or so and it will be done by 6500.
A flat tappet hydraulic cam, the size of the the RPM cam just isnt big enough to make power at 7500. HP will peak somewhere around 6000 rpm or so and it will be done by 6500.
Melting Slicks
Joined: May 2006
Posts: 3,438
Likes: 41
From: Raleigh NC
St. Jude Donor '13-'14
Pro
Joined: Jul 2005
Posts: 592
Likes: 0
From: ElP TX
Trick Flow top end kit
Yesterday I ordered this Trick Flow top end kit with roller cam from Summit. These heads have double valve springs. I found a source for the Comp Cams roller lifters on -bay that saved me about $200.00. I also got zero intererst on the summit card which helped.
http://store.summitracing.com/partde...5&autoview=sku
I also orderd this summit intake:
http://store.summitracing.com/partde...0&autoview=sku
http://store.summitracing.com/partde...5&autoview=sku
I also orderd this summit intake:
http://store.summitracing.com/partde...0&autoview=sku
Last edited by GlockGuy; Jan 24, 2008 at 11:52 PM.
Race Director
Joined: May 2005
Posts: 10,674
Likes: 122
From: Millington Illinois
St. Jude Donor '08-'09
They make a hydraulic roller version that supposedly produces even more power with less overlap. I am sure that cam would be a good cam to install. Please don't come a rip on a cam if you haven't experienced it for yourself. The thread clearly specifies if anyone has had any experience with this cam which I do. BTW- What says the engine wont turn 7500 RPM's?
Last edited by 63mako; Jan 24, 2008 at 09:55 PM.
Race Director
Joined: May 2005
Posts: 10,674
Likes: 122
From: Millington Illinois
St. Jude Donor '08-'09
Melting Slicks
Joined: May 2006
Posts: 3,438
Likes: 41
From: Raleigh NC
St. Jude Donor '13-'14
Sorry FRSTR90, but its sounding like the concensus is that that cam is not very good compared to what is available today. I definitely agree with this statement:
I'm definitely leaning towards that package, but I'll need to search around for a cam. Those Lunati grind looks good, but I'll try and get some more opinions first. Thanks for the help guys.
Edelbrock makes great intake manifolds. Buy your cam from a cam company.
Drifting
Joined: Apr 2007
Posts: 1,892
Likes: 3
From: Springfield Illinois
I tend to agree with Driveshaft that there is no way that hydraulic cam can pull 7500 rpm especially in high gear. It is almost impossible to get much over 6000 rpm out of a hydraulic cam without valve float. Maybe 6500 or a little more with a rev kit. Also power will drop off quickly after 6000 RPM just when you are hitting the areodynamic wall. Maybe the speedometer has the wrong gear and is reading incorrectly.
Where is Millington? Maybe we can get together sometime, and you can see for yourself. I think you'll be quite surprised on how well the engine runs.