CC 304 vs. Crane 104227
Thread Starter
Burning Brakes
Joined: Nov 2001
Posts: 920
Likes: 0
From: Cherry Hill NJ
CC 304 vs. Crane 104227
If I have to trim some $$$ to get headers - let alone find $$$ for stainless, I may have to stick with a non-chip upgrade in my '92 LT1. The Comp Cam 304:
Comp Cams "304" LT1 Camshaft, 210 / 220, .500 / .510 114 LSA, Mild cam, great for daily drivers or emissions sensitive applications. Will work with stock computer tuning.
vs the Crane 104227:
Crane LT1 Camshaft, 210 / 224, .479 / .518 112 LSA, Mild cam with extremely strong powerband...
I've been told the Crane should perform better.
Is it because of more duration 210/224 to 210/220 or less LSA 112 to 114? It seems to lose out in the lift category and the rule of thumb there I'm told is for all other things equal (and they are not here) go with more lift.
Comp Cams "304" LT1 Camshaft, 210 / 220, .500 / .510 114 LSA, Mild cam, great for daily drivers or emissions sensitive applications. Will work with stock computer tuning.
vs the Crane 104227:
Crane LT1 Camshaft, 210 / 224, .479 / .518 112 LSA, Mild cam with extremely strong powerband...
I've been told the Crane should perform better.
Is it because of more duration 210/224 to 210/220 or less LSA 112 to 114? It seems to lose out in the lift category and the rule of thumb there I'm told is for all other things equal (and they are not here) go with more lift.
Safety Car
Joined: Sep 2000
Posts: 3,524
Likes: 4
From: Hinckley Ohio
Originally Posted by jimbomill
The Comp Cam 304:
Comp Cams "304" LT1 Camshaft, 210 / 220, .500 / .510 114 LSA, Mild cam, great for daily drivers or emissions sensitive applications. Will work with stock computer tuning.
vs the Crane 104227:
Crane LT1 Camshaft, 210 / 224, .479 / .518 112 LSA, Mild cam with extremely strong powerband...
I'm told is for all other things equal (and they are not here) go with more lift.
Comp Cams "304" LT1 Camshaft, 210 / 220, .500 / .510 114 LSA, Mild cam, great for daily drivers or emissions sensitive applications. Will work with stock computer tuning.
vs the Crane 104227:
Crane LT1 Camshaft, 210 / 224, .479 / .518 112 LSA, Mild cam with extremely strong powerband...
I'm told is for all other things equal (and they are not here) go with more lift.
the ratio of intake lift to exhaust lift.....0.500/0.510 vs 0.479/.518.........is also important....do some searches there are some rules of thumb to follow
need to look at head flow.....I don't know why, but when I selected my cam the people doing my heads really didn't like a cam with such a mismatch.....might be ok on stock heads, but I don't think you would want such a mismatch on ported heads......
Thread Starter
Burning Brakes
Joined: Nov 2001
Posts: 920
Likes: 0
From: Cherry Hill NJ
Originally Posted by LT4BUD
It is more than just lift.....
the ratio of intake lift to exhaust lift.....0.500/0.510 vs 0.479/.518.........is also important....do some searches there are some rules of thumb to follow
need to look at head flow.....I don't know why, but when I selected my cam the people doing my heads really didn't like a cam with such a mismatch.....might be ok on stock heads, but I don't think you would want such a mismatch on ported heads......
the ratio of intake lift to exhaust lift.....0.500/0.510 vs 0.479/.518.........is also important....do some searches there are some rules of thumb to follow
need to look at head flow.....I don't know why, but when I selected my cam the people doing my heads really didn't like a cam with such a mismatch.....might be ok on stock heads, but I don't think you would want such a mismatch on ported heads......
Le Mans Master
Joined: Feb 2002
Posts: 5,970
Likes: 20
From: San Marcos Texas
You might want to make sure that cam will work with the stock chip. Since your car is a 92' it is a speed density based computer and they dont like cam changes without chip adjustments...
Drifting
Joined: Feb 2003
Posts: 1,978
Likes: 2
From: San Antonio Texas
I agree with all the above..... and I think the Comp looks better; the duration figures are closer, and I don't think you need the extra Ex.duration since you're planning headers. Also, you need to look at the total duration numbers. A smaller number for a given .050 figure, is a "faster acting" cam. A smaller total duration figure will give a better idle, and a little additional low-end power. The Comp probably has the smaller duration numbers, right? As allways, JMHO.
Thread Starter
Burning Brakes
Joined: Nov 2001
Posts: 920
Likes: 0
From: Cherry Hill NJ
Originally Posted by Curveit
I agree with all the above..... and I think the Comp looks better; the duration figures are closer, and I don't think you need the extra Ex.duration since you're planning headers. Also, you need to look at the total duration numbers. A smaller number for a given .050 figure, is a "faster acting" cam. A smaller total duration figure will give a better idle, and a little additional low-end power. The Comp probably has the smaller duration numbers, right? As allways, JMHO.
Safety Car
Joined: Feb 1999
Posts: 3,504
Likes: 4
From: Mexico Beach FL
Originally Posted by jimbomill
If I have to trim some $$$ to get headers - let alone find $$$ for stainless, I may have to stick with a non-chip upgrade in my '92 LT1. The Comp Cam 304:
Comp Cams "304" LT1 Camshaft, 210 / 220, .500 / .510 114 LSA, Mild cam, great for daily drivers or emissions sensitive applications. Will work with stock computer tuning.
vs the Crane 104227:
Crane LT1 Camshaft, 210 / 224, .479 / .518 112 LSA, Mild cam with extremely strong powerband...
I've been told the Crane should perform better.
Is it because of more duration 210/224 to 210/220 or less LSA 112 to 114? It seems to lose out in the lift category and the rule of thumb there I'm told is for all other things equal (and they are not here) go with more lift.
Comp Cams "304" LT1 Camshaft, 210 / 220, .500 / .510 114 LSA, Mild cam, great for daily drivers or emissions sensitive applications. Will work with stock computer tuning.
vs the Crane 104227:
Crane LT1 Camshaft, 210 / 224, .479 / .518 112 LSA, Mild cam with extremely strong powerband...
I've been told the Crane should perform better.
Is it because of more duration 210/224 to 210/220 or less LSA 112 to 114? It seems to lose out in the lift category and the rule of thumb there I'm told is for all other things equal (and they are not here) go with more lift.
For a few weeks, until I got my custom chip, I ran it with the stock chip -- I don't recommend it; at idle the rich mixture will burn your eyes. And, it probably is washing the lubricant off your cylinder walls promoting ring/cylinder wear.
Make sure the person that is doing your custom chip does more than just wide-open-throttle changes or the custom chip will burn your eyes at idle too.
Tom Piper
Thread Starter
Burning Brakes
Joined: Nov 2001
Posts: 920
Likes: 0
From: Cherry Hill NJ
Originally Posted by Tom Piper
I have that Crane Cam in my '92 LT1 with AFR heads.
For a few weeks, until I got my custom chip, I ran it with the stock chip -- I don't recommend it; at idle the rich mixture will burn your eyes. And, it probably is washing the lubricant off your cylinder walls promoting ring/cylinder wear.
Make sure the person that is doing your custom chip does more than just wide-open-throttle changes or the custom chip will burn your eyes at idle too.
Tom Piper
For a few weeks, until I got my custom chip, I ran it with the stock chip -- I don't recommend it; at idle the rich mixture will burn your eyes. And, it probably is washing the lubricant off your cylinder walls promoting ring/cylinder wear.
Make sure the person that is doing your custom chip does more than just wide-open-throttle changes or the custom chip will burn your eyes at idle too.
Tom Piper
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
Safety Car
Joined: Feb 1999
Posts: 3,504
Likes: 4
From: Mexico Beach FL
Originally Posted by jimbomill
Good gravy - that's interesting. Who did your chip? Also, how's the before (stock) and after (new chip, cam ...) performance comparison. It's good to see someone with the actual cam who's blazed a trail already. Did you add headers too?
The first one from Z-Industries was good at WOT but still too rich at idle, although not as bad as stock.
Then I had Ed Wright do one, and it is correct.
At that time, several years ago, Ed Wright was the only way to go.
Now, there are others that will do a chip correctly at idle and WOT.
I've heard someone on this board does them correctly.
Other than scan-tool readings and the seat-of-my-pants, I don't have any performance specs.
No headers.
If you have an A4, I'll sell you the Z-industries chip for $100.
It's done for a '92 LT1:
1) Stock injectors
2) AFR heads -- I imagine any good ported heads would be the same.
3) That Crane cam
4) A4
5) 700 rpm idle
6) 5800 rpm cutoff
7) 160 degree stat
Tom Piper
Last edited by Tom Piper; Nov 3, 2004 at 12:44 PM.
Thread Starter
Burning Brakes
Joined: Nov 2001
Posts: 920
Likes: 0
From: Cherry Hill NJ
Drat - I'm at M6 myself and still trying to determine if the pretty old cam I took out is stock, or already and upgrade, so I'm not near the finish line yet! But thanks for the offer!
Also, how is the seat-of-the-pants evaluation?
Also, how is the seat-of-the-pants evaluation?
Thread Starter
Burning Brakes
Joined: Nov 2001
Posts: 920
Likes: 0
From: Cherry Hill NJ
Originally Posted by Tom Piper
I had two chips done.
The first one from Z-Industries was good at WOT but still too rich at idle, although not as bad as stock.
Then I had Ed Wright do one, and it is correct.
At that time, several years ago, Ed Wright was the only way to go.
Now, there are others that will do a chip correctly at idle and WOT.
I've heard someone on this board does them correctly.
Other than scan-tool readings and the seat-of-my-pants, I don't have any performance specs.
No headers.
If you have an A4, I'll sell you the Z-industries chip for $100.
It's done for a '92 LT1:
1) Stock injectors
2) AFR heads -- I imagine any good ported heads would be the same.
3) That Crane cam
4) A4
5) 700 rpm idle
6) 5800 rpm cutoff
7) 160 degree stat
Tom Piper
The first one from Z-Industries was good at WOT but still too rich at idle, although not as bad as stock.
Then I had Ed Wright do one, and it is correct.
At that time, several years ago, Ed Wright was the only way to go.
Now, there are others that will do a chip correctly at idle and WOT.
I've heard someone on this board does them correctly.
Other than scan-tool readings and the seat-of-my-pants, I don't have any performance specs.
No headers.
If you have an A4, I'll sell you the Z-industries chip for $100.
It's done for a '92 LT1:
1) Stock injectors
2) AFR heads -- I imagine any good ported heads would be the same.
3) That Crane cam
4) A4
5) 700 rpm idle
6) 5800 rpm cutoff
7) 160 degree stat
Tom Piper
Also, how is the seat-of-the-pants evaluation?
