Generation III Internal Engine 1997-2006 LS1 | LS6
Sponsored by:
Sponsored by:

installed new cam.. have question

Thread Tools
 
Search this Thread
 
Old Apr 20, 2009 | 05:11 AM
  #1  
brianfromhawaii's Avatar
Thread Starter
11 Second Club
iTrader: (3)
 
Joined: Oct 2007
Posts: 857
Likes: 0
From: Hawaii
Default installed new cam.. have question

Installed a new cam, had my buddy chuck who used to be with HPE get it to idle (thanks chuck!) but when i go to drive it the engine wont spin over 5900, even though its making a lot of power, it kinda bogs...

my question may seem silly as the car isnt even tuned, has a bad temp sensor and bad o2 sensor, but if i got the cam one tooth off, would the car still idle and run? i lined the dots up to where i thought would be good...
Reply
Old Apr 20, 2009 | 05:18 AM
  #2  
odarabla's Avatar
10 Second Club
iTrader: (1)
 
Joined: Sep 2007
Posts: 1,500
Likes: 0
From: In Uranus!
Default

Originally Posted by brianfromhawaii
Installed a new cam, had my buddy chuck who used to be with HPE get it to idle (thanks chuck!) but when i go to drive it the engine wont spin over 5900, even though its making a lot of power, it kinda bogs...

my question may seem silly as the car isnt even tuned, has a bad temp sensor and bad o2 sensor, but if i got the cam one tooth off, would the car still idle and run? i lined the dots up to where i thought would be good...
Not 100% with the temp gauge but the o2's are takin out of loop once you go WOT.. This would only affect the car during regular driving. If the cam was one tooth off it would make a difference. The cam timing could be to advanced causing the car to make a ton of low end power but no top end power. This should be check before serious valve train damage occurs. Good luck with the car.
Reply
Old Apr 20, 2009 | 05:19 AM
  #3  
brianfromhawaii's Avatar
Thread Starter
11 Second Club
iTrader: (3)
 
Joined: Oct 2007
Posts: 857
Likes: 0
From: Hawaii
Default

side note - its a hpe mega death cam, 242/244 i beleive, wouldnt it mate with the piston if it was even slightly off?
Reply
Old Apr 20, 2009 | 05:20 AM
  #4  
brianfromhawaii's Avatar
Thread Starter
11 Second Club
iTrader: (3)
 
Joined: Oct 2007
Posts: 857
Likes: 0
From: Hawaii
Default

Originally Posted by odarabla
Not 100% with the temp gauge but the o2's are takin out of loop once you go WOT.. This would only affect the car during regular driving. If the cam was one tooth off it would make a difference. The cam timing could be to advanced causing the car to make a ton of low end power but no top end power. This should be check before serious valve train damage occurs. Good luck with the car.
car is not all that great low end, once it spins to maybe 4000 it starts to really pull..
Reply
Old Apr 20, 2009 | 05:23 AM
  #5  
odarabla's Avatar
10 Second Club
iTrader: (1)
 
Joined: Sep 2007
Posts: 1,500
Likes: 0
From: In Uranus!
Default

Originally Posted by brianfromhawaii
side note - its a hpe mega death cam, 242/244 i beleive, wouldnt it mate with the piston if it was even slightly off?
I would think that with a cam that size you would have issues if the cam was a tooth off!!! lol I thought you where using allot smaller cam..
If the car isn't tuned properly this is the cause of why the motor won't spin over 5900rpm. Your fuel map is still set to stock settings causing you to run out of fuel on the top rpm range..
Reply
Old Apr 20, 2009 | 05:27 AM
  #6  
brianfromhawaii's Avatar
Thread Starter
11 Second Club
iTrader: (3)
 
Joined: Oct 2007
Posts: 857
Likes: 0
From: Hawaii
Default

Originally Posted by odarabla
I would think that with a cam that size you would have issues if the cam was a tooth off!!! lol I thought you where using allot smaller cam..
If the car isn't tuned properly this is the cause of why the motor won't spin over 5900rpm. Your fuel map is still set to stock settings causing you to run out of fuel on the top rpm range..
Yeah, I am a mechanic but I was just unsure... ****, I probly need bigger injectors and a better fuel pump huh...

On a side note, for all you nay sayers about a cam this big, the drivability is amazing.
Reply
Old Apr 20, 2009 | 05:29 AM
  #7  
odarabla's Avatar
10 Second Club
iTrader: (1)
 
Joined: Sep 2007
Posts: 1,500
Likes: 0
From: In Uranus!
Default

Originally Posted by brianfromhawaii
Yeah, I am a mechanic but I was just unsure... ****, I probly need bigger injectors and a better fuel pump huh...

On a side note, for all you nay sayers about a cam this big, the drivability is amazing.
You will def. know for sure when you go to tune the car.. My cam is allot smaller than yours and I had to put 32lb SVO injecters and the racetronics fuel pump to get the proper fuel to the motor..
Reply
Old Apr 20, 2009 | 05:48 AM
  #8  
vsocks1's Avatar
TECH Regular
iTrader: (6)
 
Joined: Oct 2008
Posts: 439
Likes: 0
From: Belgium, WI
Default

Did you degree the cam when you installed it? Also did you check piston to valve clearance afterwards?
Reply
LS1 Tech Stories

The Best V8 Stories One Small Block at Time

story-0

Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph

 Verdad Gallardo
story-1

Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

 Pouria Savadkouei
story-2

Top 10 Most Powerful Chevy Trucks Ever Made!

 
story-3

Hennessey's New Supercharged Silverado ZR2 Has 700 HP

 Verdad Gallardo
story-4

Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes

 Verdad Gallardo
story-5

Awesome K5 Blazer Restomod Comes With C7 Corvette Power

 Verdad Gallardo
story-6

10 Camaros You Should Never Buy

 
story-7

10 LS Engine Myths That Refuse to Die

 Verdad Gallardo
story-8

Five Reasons the Camaro Was the Most Pivotal Player in the Pony Car Wars 2.0

 Brett Foote
story-9

10 Reasons the LS7 Is GM's Most Extreme Naturally Aspirated V8 Engine Ever

 Verdad Gallardo
Old Apr 20, 2009 | 06:12 AM
  #9  
brianfromhawaii's Avatar
Thread Starter
11 Second Club
iTrader: (3)
 
Joined: Oct 2007
Posts: 857
Likes: 0
From: Hawaii
Default

Originally Posted by vsocks1
Did you degree the cam when you installed it? Also did you check piston to valve clearance afterwards?
i just put the cam in and lined the dots up, thats what i was told to do by chuck.

i am thinking that maybe i have a fuel problem as i only have a stock fuel pump and with that cam and supporting mods i should make 475 fly hp.
Reply
Old Apr 20, 2009 | 12:38 PM
  #10  
vsocks1's Avatar
TECH Regular
iTrader: (6)
 
Joined: Oct 2008
Posts: 439
Likes: 0
From: Belgium, WI
Default

Originally Posted by brianfromhawaii
i just put the cam in and lined the dots up, thats what i was told to do by chuck.

i am thinking that maybe i have a fuel problem as i only have a stock fuel pump and with that cam and supporting mods i should make 475 fly hp.
Did you flycut the pistons?
Reply
Old Apr 20, 2009 | 12:59 PM
  #11  
brianfromhawaii's Avatar
Thread Starter
11 Second Club
iTrader: (3)
 
Joined: Oct 2007
Posts: 857
Likes: 0
From: Hawaii
Default

Originally Posted by vsocks1
Did you flycut the pistons?
hpe megadeath cam requires no piston fllycutting
Reply
Old Apr 20, 2009 | 07:16 PM
  #12  
vsocks1's Avatar
TECH Regular
iTrader: (6)
 
Joined: Oct 2008
Posts: 439
Likes: 0
From: Belgium, WI
Default

Originally Posted by brianfromhawaii
hpe megadeath cam requires no piston fllycutting
That is a fairly large cam. What was the piston to valve clearance measured?
Reason I ask is I was told the same thing about my setup....232/236 .595/.578 113+3 cam & TFS 215's milled to 61cc. My PTV measured was only .040 on intake valve at about 10 degrees ATDC!!
Reply
Old Apr 20, 2009 | 10:48 PM
  #13  
brianfromhawaii's Avatar
Thread Starter
11 Second Club
iTrader: (3)
 
Joined: Oct 2007
Posts: 857
Likes: 0
From: Hawaii
Default

talked to chuck, chuck said since my engine coolant temp sensor says -30 degrees thats my problem.... so its throwing crap for fuel, he said if it was off by one tooth my car wouldnt run, period.... on a side note, i bet my huge camed car idles better than your stock camed car
Reply
Old Apr 21, 2009 | 12:07 AM
  #14  
z28241's Avatar
TECH Enthusiast
iTrader: (13)
 
Joined: Sep 2006
Posts: 716
Likes: 1
From: western new york
Default

Curious..are you still running stock injectors? Reason is, im going with a big cam here soon and been researching, found i need to upgrade injectors..
Reply
Old Apr 21, 2009 | 01:24 AM
  #15  
Ryan72's Avatar
Teching In
 
Joined: Jul 2005
Posts: 36
Likes: 0
From: CA
Default

Originally Posted by brianfromhawaii
talked to chuck, chuck said since my engine coolant temp sensor says -30 degrees thats my problem...
could be a bad coolant temp sensor, but i'll bet you have an air pocket in the engine. take off the upper radiator hose at the upper radiator outlet. pour coolant/water down the hose into the engine until it fills the engine and hose all the way up, and coolant starts pouring out of the radiator. now hook that hose back up and your cooling system should be primed.
if it still reads -30, and your upper raditor hose feels hot from the coolant circulating inside, then yah, its your sensor.
Reply
Old Apr 21, 2009 | 03:32 AM
  #16  
brianfromhawaii's Avatar
Thread Starter
11 Second Club
iTrader: (3)
 
Joined: Oct 2007
Posts: 857
Likes: 0
From: Hawaii
Default

Originally Posted by Ryan72
could be a bad coolant temp sensor, but i'll bet you have an air pocket in the engine. take off the upper radiator hose at the upper radiator outlet. pour coolant/water down the hose into the engine until it fills the engine and hose all the way up, and coolant starts pouring out of the radiator. now hook that hose back up and your cooling system should be primed.
if it still reads -30, and your upper raditor hose feels hot from the coolant circulating inside, then yah, its your sensor.
dunno, already flushed it once...

also - i am running stock injectors, according to HPE stock fuel system can support 475 fly hp
Reply
Old Apr 21, 2009 | 03:58 AM
  #17  
98TA6.0's Avatar
TECH Enthusiast
iTrader: (42)
 
Joined: Apr 2009
Posts: 619
Likes: 1
From: Austin, Texas
Default

hey bro i'm in hawaii too. what area you live? i liv ein Kailua. as for injuectors? if you are still on the stock 853s then stock should be fine. i made 420 hp with my stock fuel system 2000 Trans Am through a set of 241s. as soon as i bolted on the CNC'd/milled 243s then i was at 105% duty cycle and had to go to 36 lb/hr FAST injectors and Racetronix fruel system. i would suggest you get your sensor problem worked out first though.
Reply
Old Apr 21, 2009 | 04:52 AM
  #18  
BAMF's Avatar
On The Tree
 
Joined: Nov 2006
Posts: 168
Likes: 0
Default

Originally Posted by brianfromhawaii
on a side note, i bet my huge camed car idles better than your stock camed car
Not sure about that, a 1500 rpm idle dosn't count either. I've seen vids of cars with that cam and it idles nothing like a stock cam.
Reply
Old Apr 21, 2009 | 02:03 PM
  #19  
brianfromhawaii's Avatar
Thread Starter
11 Second Club
iTrader: (3)
 
Joined: Oct 2007
Posts: 857
Likes: 0
From: Hawaii
Default

Originally Posted by BAMF
Not sure about that, a 1500 rpm idle dosn't count either. I've seen vids of cars with that cam and it idles nothing like a stock cam.
900 rpm idle, no surging.

I live on the big island, and havent put heads yet, but have 36lb injectors laying around, just need the fuel system which i will get when i need it
Reply




All times are GMT -5. The time now is 10:57 AM.

story-0
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph

Slideshow: A modern Camaro transformed into a retro icon, this limited-run "Bandit" build blends nostalgia with brute force in a way few revivals manage.

By Verdad Gallardo | 2026-04-21 13:57:02


VIEW MORE
story-1
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

Slideshow: Cadillac didn't just crash the high-performance luxury vehicle party, it showed up loud, supercharged, and occasionally a little unhinged...

By Pouria Savadkouei | 2026-04-16 10:05:15


VIEW MORE
story-2
Top 10 Most Powerful Chevy Trucks Ever Made!

Slideshow: Top ten most powerful Chevy trucks ever made

By | 2026-03-25 09:22:26


VIEW MORE
story-3
Hennessey's New Supercharged Silverado ZR2 Has 700 HP

Slideshow: Hennessey has turned the Silverado ZR2 into a 700-hp off-road monster with supercharged V8 power and a limited production run.

By Verdad Gallardo | 2026-03-24 18:57:52


VIEW MORE
story-4
Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes

Slideshow: A one-off sports car that looks like a vintage Italian exotic-but hides a C6 Corvette underneath-just sold for the price of a new mid-engine Corvette.

By Verdad Gallardo | 2026-03-23 18:53:41


VIEW MORE
story-5
Awesome K5 Blazer Restomod Comes With C7 Corvette Power

Slideshow: A heavily reworked 1972 K5 Blazer swaps its off-road roots for a low-slung street-focused build with modern V8 power.

By Verdad Gallardo | 2026-03-09 18:08:45


VIEW MORE
story-6
10 Camaros You Should Never Buy

Slideshow: There are thousands of used Camaros on the market but we think you should avoid these 10

By | 2026-02-17 17:09:30


VIEW MORE
story-7
10 LS Engine Myths That Refuse to Die

Slideshows: Which one of these myths do you believe?

By Verdad Gallardo | 2026-01-28 18:10:11


VIEW MORE
story-8
Five Reasons the Camaro Was the Most Pivotal Player in the Pony Car Wars 2.0

The world was a better place when it was still around.

By Brett Foote | 2026-01-23 09:20:37


VIEW MORE
story-9
10 Reasons the LS7 Is GM's Most Extreme Naturally Aspirated V8 Engine Ever

Slideshow: The 7.0-liter LS7 was designed for absolute cutting-edge performance.

By Verdad Gallardo | 2026-01-07 18:36:00


VIEW MORE