Top end redo opinions please.
Safety Car
Joined: Jan 2009
Posts: 3,736
Likes: 56
From: anchorage ak
My thought is that to achieve the best performance with the existing camshaft a good single plane would be the best choice, maybe the low rise team g if your concerned about clearence. If I were set on a dual it would be the rpm air gap. The performer is a lot lower rpm range than the camshaft.
Thread Starter
Advanced
Joined: Dec 2013
Posts: 52
Likes: 4
My thought is that to achieve the best performance with the existing camshaft a good single plane would be the best choice, maybe the low rise team g if your concerned about clearence. If I were set on a dual it would be the rpm air gap. The performer is a lot lower rpm range than the camshaft.
Will look into the team g.
Le Mans Master
Joined: Oct 2007
Posts: 7,455
Likes: 977
From: RI, Now Franklin/Nashville TN
FWIW-I rebuilt my stock L-82 in June 2014 to a L-82 355, AFR 180 heads, Howards Roller (.525/.525, duration 219/225, LSA 110), JE Forged piston, compression 10.2:1 BUT reused my L-82 aluminum intake and the dual snorkel l-82 air intake. The operating range of my cam is 1,500-5,600 Rpm and engine with the 4 speed spends most of its time in the 2,500-4,500 RPM range with occasional blast to 5,500-5,600 RPM. On my engine and following some real expert device, i was told leave the stock intake since I would not gain much changing. However, with your cam I would venture to say it would be worth changing for an additional 10-12 HP maybe. I know that the Edelbrock performer RPM is worth a few horses but it will not fit with the OEM air intake. Since you desire the OEM air intake look like me, you may be better just trying to resuse the L-82 intake and can change to some other low rise intake later if you can find one that fits but the HP gain with a low rise will be very little if at all.
Thread Starter
Advanced
Joined: Dec 2013
Posts: 52
Likes: 4
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
Thread Starter
Advanced
Joined: Dec 2013
Posts: 52
Likes: 4
FWIW-I rebuilt my stock L-82 in June 2014 to a L-82 355, AFR 180 heads, Howards Roller (.525/.525, duration 219/225, LSA 110), JE Forged piston, compression 10.2:1 BUT reused my L-82 aluminum intake and the dual snorkel l-82 air intake. The operating range of my cam is 1,500-5,600 Rpm and engine with the 4 speed spends most of its time in the 2,500-4,500 RPM range with occasional blast to 5,500-5,600 RPM. On my engine and following some real expert device, i was told leave the stock intake since I would not gain much changing. However, with your cam I would venture to say it would be worth changing for an additional 10-12 HP maybe. I know that the Edelbrock performer RPM is worth a few horses but it will not fit with the OEM air intake. Since you desire the OEM air intake look like me, you may be better just trying to resuse the L-82 intake and can change to some other low rise intake later if you can find one that fits but the HP gain with a low rise will be very little if at all.
I'll just have to tighten my belt and spring for some Spectre peices to make it work for me.
I do appreciate the insight and it's good to know that the stock intake is a decent performer.
Safety Car
Joined: Jan 2009
Posts: 3,736
Likes: 56
From: anchorage ak
After some more research, it looks like the RPM Q-JET intake may be the best compromise for power and still be able to shut my hood with a drop base cleaner.
I'll just have to tighten my belt and spring for some Spectre peices to make it work for me.
I do appreciate the insight and it's good to know that the stock intake is a decent performer.
I'll just have to tighten my belt and spring for some Spectre peices to make it work for me.
I do appreciate the insight and it's good to know that the stock intake is a decent performer.
Last edited by bluedawg; Aug 20, 2015 at 04:21 PM.
Had a 1976 L-82, 4-sp
Joined: Mar 2011
Posts: 5,338
Likes: 1,213
From: Some days your the dog and some days your the hydrant.
Royal Canadian Navy
I have a 280 retro roller cam and use a use a Team G low rise intake. It runs just fine. I would go with a Team G for your setup and a double pumper.
Safety Car
Joined: Jan 2009
Posts: 3,736
Likes: 56
From: anchorage ak
Indeed I was aware of the carb to lid clearance issue as well.
I still need to do some accurate measuring and compare with the drawings that spectre provides of their boxes.
In a perfect world that cam profile would not have been my first choice but when parts come your way VERY cheap, it's hard to pass.
That's been the story of this car from the beginning of my ownership. A very good deal that I probably wouldn't have been able to afford otherwise.
Currently the Edelbrock that's on it is using the adapter plate that adds .85" to the air cleaner height over stock and I can still close the hood no issues so maybe things won't be as tight as I thought.
Thanks for the opinions and advice.
I still need to do some accurate measuring and compare with the drawings that spectre provides of their boxes.
In a perfect world that cam profile would not have been my first choice but when parts come your way VERY cheap, it's hard to pass.
That's been the story of this car from the beginning of my ownership. A very good deal that I probably wouldn't have been able to afford otherwise.
Currently the Edelbrock that's on it is using the adapter plate that adds .85" to the air cleaner height over stock and I can still close the hood no issues so maybe things won't be as tight as I thought.
Thanks for the opinions and advice.
Safety Car
Joined: Jan 2009
Posts: 4,000
Likes: 299
From: New York
Because it's mine and I can spend my money any way I like.
Do you have anything constructive to say or just troll for fun?
I know the intake is the mis-match in the equation. That's why I'm looking for opinions.
If you think that shorty exhaust is choking, you're sadly mistaken.
Do you have anything constructive to say or just troll for fun?
I know the intake is the mis-match in the equation. That's why I'm looking for opinions.
If you think that shorty exhaust is choking, you're sadly mistaken.
Trolling ?
You started a topic ,, maybe next time you can start off with
Only people who agree with me reply ..
................
I do not think your chocking it off with shorty headers , I know you are.
So spend your few dollars however you want ,, If you make less power that works to ..
Thread Starter
Advanced
Joined: Dec 2013
Posts: 52
Likes: 4
You are doing a lot of miss matching , such as wanting more power then chocking it off with the intake or exhaust .
So why do anything to it ?
So why do anything to it ?
Nice reply..
Trolling ?
You started a topic ,, maybe next time you can start off with
Only people who agree with me reply ..
................
I do not think your chocking it off with shorty headers , I know you are.
So spend your few dollars however you want ,, If you make less power that works to ..
Trolling ?
You started a topic ,, maybe next time you can start off with
Only people who agree with me reply ..
................
I do not think your chocking it off with shorty headers , I know you are.
So spend your few dollars however you want ,, If you make less power that works to ..
What you did was offer zero constructive input and instead questioned my motivation.
Obviously you have little real technical knowledge to bring to the table so just move along and find something else to criticize and offer no actual advice.
That's just being cynical.
Derp.
Safety Car
Joined: Jan 2009
Posts: 4,000
Likes: 299
From: New York
You didn't disagree with me, I said it was an intake mismatch right from the start.
What you did was offer zero constructive input and instead questioned my motivation.
Obviously you have little real technical knowledge to bring to the table so just move along and find something else to criticize and offer no actual advice.
That's just being cynical.
Derp.
What you did was offer zero constructive input and instead questioned my motivation.
Obviously you have little real technical knowledge to bring to the table so just move along and find something else to criticize and offer no actual advice.
That's just being cynical.
Derp.
You stand a good chance of a fine tuning nightmare down low and at mid-range yet instead of answering my question you get offended and call names and make rude comments.
You started the topic and honestly your working yourself into a hype for nothing save it for when your done and you have to tune it and drive it light to light .
If i was trolling I would have started off with ..
You do not build a motor to suit an air cleaner.
Thread Starter
Advanced
Joined: Dec 2013
Posts: 52
Likes: 4
Yes what is your motive ? Why do all that to a motor , put in a big cam that is going to idle like crap from jump ( 3200+ stall required) and then choke it off on the intake and exhaust .
You stand a good chance of a fine tuning nightmare down low and at mid-range yet instead of answering my question you get offended and call names and make rude comments.
You started the topic and honestly your working yourself into a hype for nothing save it for when your done and you have to tune it and drive it light to light .
If i was trolling I would have started off with ..
You do not build a motor to suit an air cleaner.
You stand a good chance of a fine tuning nightmare down low and at mid-range yet instead of answering my question you get offended and call names and make rude comments.
You started the topic and honestly your working yourself into a hype for nothing save it for when your done and you have to tune it and drive it light to light .
If i was trolling I would have started off with ..
You do not build a motor to suit an air cleaner.
I have the right rear gear an a 4 speed so that's a moot point.
Second, your still wrong about the exhaust. It flows very free. The only thing long tubes will bring is high rpm scavenging that you would never even notice.
No hype here, just responding in the same manner which you presented.
Your questions are classic strawman shifts that aren't relevant. That's why I didn't answer. You attempted to shift the topic to my motivation and not offer anything constructive.
Yes, building a motor to suit the aircleaner is very weird. I'll give you that. That's why I came looking for opinions and options and have received a number of very informative and wonderful responses.
Yours being the one exception.
I have faith in my tuning skills and intakes are easy to change. I'll just leave it at that.
Race Director
Joined: May 2003
Posts: 10,956
Likes: 409
From: California
just a FYI....diehrd does know what he is talking about... don't get mad... listen to what he has to say... he is correct... he just finished a 600hp build... imho.... good luck with your build... wish you the best,,,, here is my CAI
Safety Car
Joined: Jan 2009
Posts: 3,736
Likes: 56
From: anchorage ak
Listed as 3200+ rpm. As you mentionedThe performer intake is a huge mismatch and is killing your engines performance. If I were not going single plane then I'd go with the rpm air gap. The lowest rise team g would be a good match, not perfect but better than a dual plane, it won't hurt the low end that much.