Installed cam, having problems.
Thread Starter
Registered User
Joined: Jul 2007
Posts: 6
Likes: 0
Installed cam, having problems. Installed my camshaft today. The install went well, and relatively fast. I also installed stronger valve springs and hardened pushrods. The problem is, the car runs like the timing is retarded. I know I have the timing right (gear marks don't lie). Idle is ok. But when you rev it, it sounds bogged down, and it accelerate a tad slower than the stocker cam I just removed. Is this because i'm running a stock tune, or did I just choose the wrong cam? 
Any help is appreciated.
Cam specs:
The intake duration @ .050 is 224 & the exhaust @ .050 is 231.
The intake lobe lift is .340 & the exhaust is .346 which gives a 578 intake & 588 exhaust lift with stock 1.7 rocker ratio.
Advertised duration is 274 intake & 280 exhaust.
Also:
Long tube headers and a CAI. M6.
Any help is appreciated.
Cam specs:
The intake duration @ .050 is 224 & the exhaust @ .050 is 231.
The intake lobe lift is .340 & the exhaust is .346 which gives a 578 intake & 588 exhaust lift with stock 1.7 rocker ratio.
Advertised duration is 274 intake & 280 exhaust.
Also:
Long tube headers and a CAI. M6.
Originally Posted by PEARL JAM
Installed my camshaft today. The install went well, and relatively fast. I also installed stronger valve springs and hardened pushrods. The problem is, the car runs like the timing is retarded. I know I have the timing right (gear marks don't lie). Idle is ok. But when you rev it, it sounds bogged down, and it accelerate a tad slower than the stocker cam I just removed. Is this because i'm running a stock tune, or did I just choose the wrong cam?
Any help is appreciated.
Cam specs:
The intake duration @ .050 is 224 & the exhaust @ .050 is 231.
The intake lobe lift is .340 & the exhaust is .346 which gives a 578 intake & 588 exhaust lift with stock 1.7 rocker ratio.
Advertised duration is 274 intake & 280 exhaust.
Also:
Long tube headers and a CAI. M6.
Any help is appreciated.
Cam specs:
The intake duration @ .050 is 224 & the exhaust @ .050 is 231.
The intake lobe lift is .340 & the exhaust is .346 which gives a 578 intake & 588 exhaust lift with stock 1.7 rocker ratio.
Advertised duration is 274 intake & 280 exhaust.
Also:
Long tube headers and a CAI. M6.
btw kiss ur sig pic good bye...
WAY TO BIG!
TECH Fanatic
Joined: Jul 2006
Posts: 1,179
Likes: 0
From: North Bay, Ontario
Originally Posted by Trev_SS
that is a huge cam man but probally a tune causing you to bog like that
Trending Topics
LS1 Tech Stories
The Best V8 Stories One Small Block at Time
6 Common C5 Corvette Failures and What's Involved In Repairing Them
Pouria Savadkouei
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph
Verdad Gallardo
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked
Pouria Savadkouei
Top 10 Most Powerful Chevy Trucks Ever Made!
Hennessey's New Supercharged Silverado ZR2 Has 700 HP
Verdad Gallardo
Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes
Verdad Gallardo
Awesome K5 Blazer Restomod Comes With C7 Corvette Power
Verdad Gallardo
10 Camaros You Should Never Buy
10 LS Engine Myths That Refuse to Die
Verdad Gallardo
100% its the tune, assuming everything is installed correctly. You just changed a MAJOR component that controls your valve events, why would you expect it to run right on the stock tune? Get it tuned, asap. Until then, don't worry about how it drives.
I am in the EXACT same boat as you. After my cam install which also included FAST Intake Manifold New TB Headers portedheads and ASP pulley runs like ***. especially if you haven;t driven it a coupe hundered miles yet...believe it or not but the stock computer will learn a decent amount of the new cam by itself (However a tune is an absolute must) I am getting mine tuned in about 2 weeks or so. I will let you know the results. Do make sure to double check everything to just make sure...mine ran so bad i check everything 3-4 times thinking something was wrong but now i KNOW it is right and i just need a tune. your cam is not a HUGE cam like so many others are running so it really shouldn;t run too bad without a tune so definatly make sure you double check spark plug wires and all sensors and connections
TUNE! I did a heads and cam swap, and the car ran like crap. Wouldn't rev, hold idle.. i can go on. I wouldn't run her to long without one. Might end up hurting the motor..
Thread Starter
Registered User
Joined: Jul 2007
Posts: 6
Likes: 0
Originally Posted by Formula_Power
I am in the EXACT same boat as you. After my cam install which also included FAST Intake Manifold New TB Headers portedheads and ASP pulley runs like ***. especially if you haven;t driven it a coupe hundered miles yet...believe it or not but the stock computer will learn a decent amount of the new cam by itself (However a tune is an absolute must) I am getting mine tuned in about 2 weeks or so. I will let you know the results. Do make sure to double check everything to just make sure...mine ran so bad i check everything 3-4 times thinking something was wrong but now i KNOW it is right and i just need a tune. your cam is not a HUGE cam like so many others are running so it really shouldn;t run too bad without a tune so definatly make sure you double check spark plug wires and all sensors and connections
Does not sound tune related to me at all. You can swap cams with no tune and it should drive ok after a little bit. Id be double checking everything like plugs for cracks and wires and stupid stuff like that.