LT1 Based Engine Tech 1993-1997 LT1/LT4 Engine Related

More Cam Help (LE2-383) 107* Separation?

Thread Tools
 
Search this Thread
 
Old Jun 11, 2008 | 02:45 PM
  #1  
ENRKyle20's Avatar
Thread Starter
Registered User
 
Joined: May 2008
Posts: 856
From: Sheboygan, WI
More Cam Help (LE2-383) 107* Separation?

I just purchased a used h/c package. Loyd did the work about 3 years ago. I got the heads with 7/16 studs, guideplates, and comp beehive springs. I also got a loyd ported intake manifold.

I have some question about the cam. Im sure its the correct/ideal cam for this package but there is some things I dont understand, mainly the lobe seperation being 107*.. I was talkin to comp cams and he said that fuel injection will not run on anything less than 112?.. hmm. Also, I told them my speca and he recomened a 242/238 @.050" cam with 113* separation.

so, if there somehting not right here or will it compute out once I know centerlines?.. I dont know the exact specs on the cam..

I dont want the cam to hold me back, I kinda feel like 236/236 might>?

the cam says LE2-383 on it. its done on a billet core.

should I just trust that its the right cam for the package?..
Old Jun 11, 2008 | 02:48 PM
  #2  
SlowButSure94Z's Avatar
Registered User
 
Joined: Nov 2007
Posts: 104
IDK where the "FI cars can only run on 112lsa or more" came from. My custom cam is a 107lsa aswell and I can think of atleast 3-4 more people on here running close to the same.

I would go with the cam Lloyd sent you as I would think he would know his parts better then anyone else and what works with them..
Old Jun 11, 2008 | 02:57 PM
  #3  
ENRKyle20's Avatar
Thread Starter
Registered User
 
Joined: May 2008
Posts: 856
From: Sheboygan, WI
100% agree. I just called him.. and asked some questions.. he is so helpful. I even told him i bought it used and he was still willing to help. wow.

he laughed when I told him what comp said..lol. he said that just shows you how much they know..

so yea, he definatly reasured me that this is the correct cam for the package, he said he used the same cam in his car and makes 437rwhp threw an A4. SWEET. I cant wait

so yea. I guess I got it all figured out. I will leave the complicate cam work up to the smart people. ahh my head hurts.. lol

Last edited by ENRKyle20; Jun 11, 2008 at 03:00 PM.
Old Jun 11, 2008 | 03:02 PM
  #4  
Colin91Z's Avatar
Registered User
 
Joined: Dec 2004
Posts: 968
From: Wichita, KS
Originally Posted by ENRKyle20
.. I was talkin to comp cams and he said that fuel injection will not run on anything less than 112?..
This is simply more proof that the tech guys at comp cams don't have a clue what they're talking about.


Originally Posted by ENRKyle20
.. I dont want the cam to hold me back, I kinda feel like 236/236 might>?

the cam says LE2-383 on it. its done on a billet core.

should I just trust that its the right cam for the package?..
Trust it, it'll work. I'm running a cam very similar from LE in my 350ci motor. It's actually an LE3.2 and is 23x/23x duration, .593/.593 lift (with 1.52 rockers), and on a 107 *lsa.
Old Jun 11, 2008 | 03:15 PM
  #5  
BUBBA's Avatar
Registered User
 
Joined: Dec 1969
Posts: 3,499
From: PORTLAND, OR, MULTNOMAH
Just curious: What RPM, power band and type of driving for a cam with those specs?

Thx.
Old Jun 11, 2008 | 03:39 PM
  #6  
nonosvt's Avatar
Registered User
 
Joined: Oct 2005
Posts: 96
From: Arkansas
[QUOTE=Colin91Z;5422285] This is simply more proof that the tech guys at comp cams don't have a clue what they're talking about.



Not ture have a friend that done me a cam that works at comp. Car runs mid to low 7s(N/A) cam only in the 8th mile in a 3600 lbs vert.
Old Jun 11, 2008 | 04:07 PM
  #7  
Colin91Z's Avatar
Registered User
 
Joined: Dec 2004
Posts: 968
From: Wichita, KS
Originally Posted by BUBBA
Just curious: What RPM, power band and type of driving for a cam with those specs?

Thx.
***Disclaimer***First of all I will say that even though my cam is a LE/BRE cam, it was not spec'd for my particular combo. I bought it from another cz28.com member in the classified section of this site. I do not think that it is the optimum cam for my combo, but it does seem to work pretty well and I must admit that I like it quite a bit.

With that being understood, My car is driven 80% on the street and 20% track time, however it is NOT my daily driver. It idles at 900rpm, and yes it's fairly lumpy, but nothing unbearable. My car still has it's A/C, and it still idles fine with it on. While cruising at a steady speed in the 25-40 mph range in does have a little cam surge, but honestly is no worse than my old LT4 hotcam was.

It makes plenty of torque and is not at all tricky to drive in traffic, however this thing WAKES UP @ 4000rpm and pulls hard to it's 7K shiftpoints. (it slows down at the track if I shift at anything less than 7K) It consistantly posts 117-118 mph trap speeds and has even seen 119 a couple of times. I'm sure that there is still power to be had along with better drivability because I'm still on a mail-order tune from pcmforless and it is quite obviously on the rich side.

Also, I'm sure that the car could go faster by setting it up for drag, right now it's still set up for cornering. You can see my weight transfer (or lack there of ) in this video...

Old Jun 11, 2008 | 04:09 PM
  #8  
Colin91Z's Avatar
Registered User
 
Joined: Dec 2004
Posts: 968
From: Wichita, KS
Originally Posted by nonosvt
Not ture have a friend that done me a cam that works at comp. Car runs mid to low 7s(N/A) cam only in the 8th mile in a 3600 lbs vert.
My point is that they tell people that fuel injected cars won't run with anything less than a 112lsa....which is obviously not true. That statement alone makes me not trust Comp's tech guys.

If it were true, then my car wouldn't run.
Old Jun 11, 2008 | 04:34 PM
  #9  
Wicked-Z's Avatar
Registered User
 
Joined: Jul 2007
Posts: 56
runnin 107, no probs
Old Jun 11, 2008 | 05:57 PM
  #10  
MEAN LT1's Avatar
Registered User
 
Joined: Aug 2001
Posts: 1,983
From: Jacksonville,fla
Gotta love them tight lsa's
Old Jun 11, 2008 | 06:26 PM
  #11  
ENRKyle20's Avatar
Thread Starter
Registered User
 
Joined: May 2008
Posts: 856
From: Sheboygan, WI
what exactly does the tight sla mean. I know it means the lobe seperation is less. and that means more overlap correct, wich leads to a choppy idle, slower rev, less low end tq, more high rpm power?
Old Jun 11, 2008 | 07:20 PM
  #12  
nonosvt's Avatar
Registered User
 
Joined: Oct 2005
Posts: 96
From: Arkansas
Originally Posted by Colin91Z
My point is that they tell people that fuel injected cars won't run with anything less than a 112lsa....which is obviously not true. That statement alone makes me not trust Comp's tech guys.

If it were true, then my car wouldn't run.
Hmm he did my cam and its on a 109 lsa. Theres about 30 tech guys and some of them might not know anything but most of them do IMO. My friend works there and has a mid 8 sec f-body http://www.youtube.com/watch?v=T-LWPpOWWXI
Old Jun 11, 2008 | 07:30 PM
  #13  
seawolf06's Avatar
Registered User
 
Joined: Jul 2004
Posts: 3,034
From: Raleigh, NC
Your first mistake was asking comp cams tech line for advice on cams, lol!
Old Jun 11, 2008 | 07:33 PM
  #14  
bombebomb's Avatar
Registered User
 
Joined: May 2006
Posts: 1,855
From: Ohio
Guess my car is not gonna run either lol. 110lsa
Old Jun 11, 2008 | 07:57 PM
  #15  
sbs's Avatar
sbs
Registered User
 
Joined: Feb 2004
Posts: 1,154
From: VA
Originally Posted by nonosvt
Not ture have a friend that done me a cam that works at comp. Car runs mid to low 7s(N/A) cam only in the 8th mile in a 3600 lbs vert.

Your friend "done you a cam" but his job is working the phones?



All times are GMT -5. The time now is 01:27 AM.