LTX and LSX Putting LT1s, LS1s, and their variants into Third Gens is becoming more popular. This board is for those who are doing and have done the swaps so they can discuss all of their technical aspects including repairs, swap info, and performance upgrades.

If you were given an LS6 cam...

Thread Tools
 
Search this Thread
 
Old Sep 26, 2010 | 07:52 PM
  #1  
five7kid's Avatar
Thread Starter
Moderator
25 Year Member
iTrader: (14)
 
Joined: Mar 2000
Posts: 43,187
Likes: 42
From: Littleton, CO USA
Car: 82 Berlinetta/57 Bel Air
Engine: L92/LQ4 (both w/4" stroke)
Transmission: 4L80E/4L80E
Axle/Gears: 12B-3.73/9"-3.89
If you were given an LS6 cam...

...would you use it?

Actually I've been given it to see if it works any better. Debating whether or not to install it. Most likely I'd try it in the 2000 LS1 w/stock f-body cam, shaved 317's, Hawks headers, LS6 intake, 3000 stall shift-kitted 4L60E, 3.73 gears. If I decide to keep it, I give him $75.
Reply
Old Sep 26, 2010 | 08:05 PM
  #2  
Orr89RocZ's Avatar
Supreme Member
20 Year Member
Liked
Loved
Community Favorite
iTrader: (20)
 
Joined: Sep 2003
Posts: 25,895
Likes: 429
From: Pittsburgh PA
Car: 89 Iroc-z
Engine: 555 BBC Turbo
Transmission: TH400
Axle/Gears: MWC 9” 3.00
Re: If you were given an LS6 cam...

IF you were going to do a cam swap I'd go bigger but it will run faster with the LS6 cam vs any other factory cam. LS6 motor routinely put down near 390-400whp with all the bolt ons and tune, vs 350whp for a typical full bolt on LS1. Your 317 heads flow like a 243 LS6 head and being shaved they probably have same chambers to keep compression similar.
Reply
Old Sep 26, 2010 | 08:08 PM
  #3  
xpndbl3's Avatar
Supreme Member
iTrader: (5)
 
Joined: Jan 2002
Posts: 13,622
Likes: 5
From: Orland Park, IL
Car: 1984 Z28
Engine: SLOW carbed ls
Transmission: TH400 with brake, 8" PTC converter
Axle/Gears: moser 9" 4.11
Re: If you were given an LS6 cam...

not worth the time or expense to do a cam swap to not put a real cam in there compared to a GM one.
Reply
Old Sep 26, 2010 | 08:09 PM
  #4  
88 350 tpi formula's Avatar
Supreme Member
25 Year Member
Liked
Loved
iTrader: (9)
 
Joined: Dec 1999
Posts: 3,544
Likes: 19
From: WI,USA
Car: 89 FORMULA 350, 91 Z28 Convertible
Engine: ls1, LB9
Transmission: t56, Auto
Axle/Gears: S60/ 3.73
Re: If you were given an LS6 cam...

I dont think I would bother with it.
Reply
Old Sep 26, 2010 | 08:23 PM
  #5  
five7kid's Avatar
Thread Starter
Moderator
25 Year Member
iTrader: (14)
 
Joined: Mar 2000
Posts: 43,187
Likes: 42
From: Littleton, CO USA
Car: 82 Berlinetta/57 Bel Air
Engine: L92/LQ4 (both w/4" stroke)
Transmission: 4L80E/4L80E
Axle/Gears: 12B-3.73/9"-3.89
This is the same engine that had the #5 intake lifter/pushrod take a dump, scuffing the lobe a little. I may have to pull the engine to fix a rear oil leak (not sure if it's rear main seal or oil pan). I'd be willing to do the cam at the same time if it would run better.

I'm also cheap, and wouldn't mind being able to tell the other LS1 racers that the engine is "all GM parts". I'm already running with the mod'd 4th gens (faster than one, close to the other), over a second quicker than the stock LS1's.
Reply
Old Sep 26, 2010 | 08:53 PM
  #6  
fast377's Avatar
Member
iTrader: (4)
 
Joined: Feb 2004
Posts: 266
Likes: 2
Car: 91 Z28
Engine: LS1
Transmission: t-56
Axle/Gears: 3.73 4th gen 10 bolt
Re: If you were given an LS6 cam...

Originally Posted by xpndbl3
not worth the time or expense to do a cam swap to not put a real cam in there compared to a GM one.
Agreed. You can score a nice used cam, that would net you a LOT more power.
Reply
Old Sep 26, 2010 | 09:14 PM
  #7  
Orr89RocZ's Avatar
Supreme Member
20 Year Member
Liked
Loved
Community Favorite
iTrader: (20)
 
Joined: Sep 2003
Posts: 25,895
Likes: 429
From: Pittsburgh PA
Car: 89 Iroc-z
Engine: 555 BBC Turbo
Transmission: TH400
Axle/Gears: MWC 9” 3.00
Re: If you were given an LS6 cam...

Witha bigger cam you'd need to get it all tuned up. LS6 cam should run ok on stock tune but will also benefit form a tune. Not sure if you plan on tuning yourself or not but thats extra cost. But you can find some cheaper used cams that will work well.
Reply
Old Sep 26, 2010 | 09:21 PM
  #8  
ericjon262's Avatar
Supreme Member
15 Year Member
 
Joined: Nov 2008
Posts: 1,545
Likes: 10
From: South Carolina
Car: 85 2M6, 87 'Bird 88 'burb
Engine: LX9, LG4, L05
Transmission: F23, 700r4, 700R4
Axle/Gears: 3.63, 2.73, 4.10
Re: If you were given an LS6 cam...

for $75 sure go for it, unless you can find something used aftermarket cheaper.
Reply
Old Sep 29, 2010 | 01:52 PM
  #9  
five7kid's Avatar
Thread Starter
Moderator
25 Year Member
iTrader: (14)
 
Joined: Mar 2000
Posts: 43,187
Likes: 42
From: Littleton, CO USA
Car: 82 Berlinetta/57 Bel Air
Engine: L92/LQ4 (both w/4" stroke)
Transmission: 4L80E/4L80E
Axle/Gears: 12B-3.73/9"-3.89
Originally Posted by xpndbl3
not worth the time or expense to do a cam swap to not put a real cam in there compared to a GM one.
Time - would be part of the oil leak fix, so not much additional over pulling the engine.
Expense - Just the $75 for keeping the cam.

Originally Posted by Orr89RocZ
Witha bigger cam you'd need to get it all tuned up. LS6 cam should run ok on stock tune but will also benefit form a tune. Not sure if you plan on tuning yourself or not but thats extra cost. But you can find some cheaper used cams that will work well.
I may be doing some tuning, or getting it done (haven't decided yet). Either way it will involve expense, as I don't have any tuning equipment or software yet. (Are these things any good? http://www.summitracing.com/search/S...O/?Ns=Rank|Asc )

I wasn't looking for a cam upgrade, this almost literally fell in my lap (offered by a local racer putting a 5.3 in his driver Malibu and decided to go with an LQ4 cam instead). He kept talking about putting his LS6 cam in my car and spraying it to get into the 10's. I pointed out I don't have a roll bar, and the car is supposed to be my DD. Last weekend, he brought the cam out to the track, brought it over to me, and said, "Put it in and see how it does. If you like it, I paid $75 for it."
Reply
Old Sep 29, 2010 | 03:03 PM
  #10  
ZONES89RS's Avatar
Supreme Member
iTrader: (2)
 
Joined: Dec 2006
Posts: 5,538
Likes: 0
From: Hou. TX
Car: 86 TA, 91 B4C
Engine: 5.3, 4.8
Transmission: 4L80 4000, T56
Axle/Gears: 4.30 M12, 23.42 10 bolt
Re: If you were given an LS6 cam...

I would keep it just to have if you ever end up with something like a 5.3 or something that you just wanted to go up with a little in the power department.
Reply
Old Sep 29, 2010 | 10:37 PM
  #11  
cam-'s Avatar
Supreme Member
 
Joined: Mar 2004
Posts: 2,519
Likes: 4
From: In the Garage
Car: Camaro
Engine: 6.2L
Transmission: T56
Re: If you were given an LS6 cam...

I wouldnt bother its not much of an upgrade and theres so many great cams out there nowadays. The EPS lobe 224ish cam put down impressive numbers and times ( deep 11's ) over at tech on a bone stock LS6 crate engine.

If you change your air intake you should get a tune never mind anything else.
Reply
Old Sep 29, 2010 | 10:43 PM
  #12  
five7kid's Avatar
Thread Starter
Moderator
25 Year Member
iTrader: (14)
 
Joined: Mar 2000
Posts: 43,187
Likes: 42
From: Littleton, CO USA
Car: 82 Berlinetta/57 Bel Air
Engine: L92/LQ4 (both w/4" stroke)
Transmission: 4L80E/4L80E
Axle/Gears: 12B-3.73/9"-3.89
Originally Posted by cam-
If you change your air intake you should get a tune never mind anything else.
Funny, early on when putting the LS1/T56 together, I asked if the things I was changing from factory (LS6 intake, long tube headers, air intake) would affect the tune. I was told much more radical changes have been made without affecting the tune, so I should be fine. Well, the LS1/T56 seemed fine, but the LS1/4L60E doesn't like to idle.
Reply
Old Sep 30, 2010 | 01:22 PM
  #13  
cam-'s Avatar
Supreme Member
 
Joined: Mar 2004
Posts: 2,519
Likes: 4
From: In the Garage
Car: Camaro
Engine: 6.2L
Transmission: T56
Re: If you were given an LS6 cam...

Originally Posted by five7kid
Funny, early on when putting the LS1/T56 together, I asked if the things I was changing from factory (LS6 intake, long tube headers, air intake) would affect the tune. I was told much more radical changes have been made without affecting the tune, so I should be fine. Well, the LS1/T56 seemed fine, but the LS1/4L60E doesn't like to idle.
Running, and running well are completely different animals. Im learning a lot about tunes now and I have a LOT to learn. Needless to say with even minor changes a tune will reap very beneficial rewards
Reply
Old Sep 30, 2010 | 02:00 PM
  #14  
xpndbl3's Avatar
Supreme Member
iTrader: (5)
 
Joined: Jan 2002
Posts: 13,622
Likes: 5
From: Orland Park, IL
Car: 1984 Z28
Engine: SLOW carbed ls
Transmission: TH400 with brake, 8" PTC converter
Axle/Gears: moser 9" 4.11
Re: If you were given an LS6 cam...

don't pay for a tune until you slap a cam in there would be my suggestion, check out your sensor readings, maybe something is off on your setup. Too many bolt on cars running great with no tune to point to that immediately.
Reply
Old Sep 30, 2010 | 05:16 PM
  #15  
one92rs's Avatar
Supreme Member
iTrader: (5)
 
Joined: Jan 2009
Posts: 2,928
Likes: 4
From: league city
Car: SOLD!!!!!
Re: If you were given an LS6 cam...

well in my experience going to long tubes, air intake change, and an auto will make a difference. for starters you just opened the exhaust up. then allowed more air from the intake, and put more load on the engine going from manual to auto. yes there will be changes that need to be done. if you are not wanting to put out for a better cam then throw that one in and then have a tune done for it where they actually change the timing and fuel tables this time.
Reply
Old Sep 30, 2010 | 06:32 PM
  #16  
five7kid's Avatar
Thread Starter
Moderator
25 Year Member
iTrader: (14)
 
Joined: Mar 2000
Posts: 43,187
Likes: 42
From: Littleton, CO USA
Car: 82 Berlinetta/57 Bel Air
Engine: L92/LQ4 (both w/4" stroke)
Transmission: 4L80E/4L80E
Axle/Gears: 12B-3.73/9"-3.89
One of these days I need to hook up the check engine light and OBD II connector. I'll probably do that when the Cable X box arrives (supposed to be delivered tomorrow) and I hook up the speedometer.

Interestingly the car idles fine if it is moving. When I come to a stop, it'll be fine for a few seconds, then lose RPMs, and die if I don't feather the throttle. Doesn't matter if it's in gear or in neutral if the car isn't moving.

Anyway. like I said, I wasn't looking to upgrade the cam, it just fell in my lap. If I saved it for a 5.3, I'd still be paying $75 (my son is considering a 5.3 for his '96 S10). They guy who gave me the cam decided against it because he thought it would be to much for his 5.3.

Well, I'm so burnt out from getting this car running, then 3 trips in 3 weeks, and two remaining weekends of racing coming up that I'm sure nothing will be happening soon.
Reply
Old Sep 30, 2010 | 07:59 PM
  #17  
xpndbl3's Avatar
Supreme Member
iTrader: (5)
 
Joined: Jan 2002
Posts: 13,622
Likes: 5
From: Orland Park, IL
Car: 1984 Z28
Engine: SLOW carbed ls
Transmission: TH400 with brake, 8" PTC converter
Axle/Gears: moser 9" 4.11
Re: If you were given an LS6 cam...

is your VSS hooked up to the computer, because that sounds like the issue when coming to a stop and it dying. Raising idle rpm can "fix" that or mask the issues.
Reply
Old Sep 30, 2010 | 08:16 PM
  #18  
one92rs's Avatar
Supreme Member
iTrader: (5)
 
Joined: Jan 2009
Posts: 2,928
Likes: 4
From: league city
Car: SOLD!!!!!
Re: If you were given an LS6 cam...

its the difference in load, air, and fuel. it is all able to be tuned out. and should be able to be tuned out without raising the idle. trust me i have tuned these engines before and will again. a 4l60e takes 22 hp to run. a 4l80e takes 48hp to run. you said before it was a stock tune. well it had to be for a standard if you had a t56 before. stick the cam in there, raise the misfires a tad, set the fuel and timing and you should be good to go.
Reply
Old Sep 30, 2010 | 08:34 PM
  #19  
five7kid's Avatar
Thread Starter
Moderator
25 Year Member
iTrader: (14)
 
Joined: Mar 2000
Posts: 43,187
Likes: 42
From: Littleton, CO USA
Car: 82 Berlinetta/57 Bel Air
Engine: L92/LQ4 (both w/4" stroke)
Transmission: 4L80E/4L80E
Axle/Gears: 12B-3.73/9"-3.89
The VSS is hooked up.

It's a stock tune for a 2000 LS1/4L60E. Remember, I have two '82 Berlinettas, one with a 2000 LS1/T56, the other with a 2000 LS1/4L60E.
Reply
Old Sep 30, 2010 | 08:42 PM
  #20  
one92rs's Avatar
Supreme Member
iTrader: (5)
 
Joined: Jan 2009
Posts: 2,928
Likes: 4
From: league city
Car: SOLD!!!!!
Re: If you were given an LS6 cam...

then either you have something wrong or the tune is not right.

one thing to remember is that the ecm does not know fuel pressure in those years. without a check engine light hooked up there is no way to know if a code is present. although some dont like them the light and the connector can serve you well. if it doesnt die while cruising then to nme the iac is working. if you do stick a cam in have them turn your misfires up a tad bit. i always did mine to 32000.
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
Nervous2
Firebirds for Sale
2
Oct 8, 2015 10:53 PM
customblackbird
Power Adders
71
Oct 1, 2015 04:30 PM
thekurlyone
Tech / General Engine
1
Sep 30, 2015 12:54 PM
Buggy Disaster
Auto Detailing and Appearance
12
Sep 22, 2015 01:15 PM
sandman92084
Tech / General Engine
13
Sep 12, 2015 10:27 PM




All times are GMT -5. The time now is 10:00 PM.