Powerband 110 lsa vs 112 - LS1TECH



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

Powerband 110 lsa vs 112

Reply
 
Thread Tools Search this Thread
Old 05-15-2002, 01:23 PM   #1
TECH Regular
Thread Starter
 
Join Date: Nov 2001
Posts: 409
Default Powerband 110 lsa vs 112

On an identical cam, about how much would the powerband or peak power move with a 110 vs 112 lsa?

<small>[ May 15, 2002, 01:29 PM: Message edited by: Pro Stock John ]</small>
Rpm2800 is offline   Reply With Quote
Old 05-15-2002, 01:29 PM   #2
LS1Tech Co-Founder
iTrader: (34)
 
Pro Stock John's Avatar
 
Join Date: Nov 2001
Location: Chicago, IL
Posts: 42,001
Default Re: Powerband 110 lsa vs 112

I'd say peak HP with the 110 LSA would be at least 200 rpms lower than the 112 LSA camshaft.
Pro Stock John is offline   Reply With Quote
Old 05-15-2002, 01:48 PM   #3
LS1 Tech Administrator
iTrader: (14)
 
Patrick G's Avatar
 
Join Date: Nov 2001
Location: Victoria, TX
Posts: 8,238
Default Re: Powerband 110 lsa vs 112

I respectfully disagree with PSJ. I feel that once you start getting toward 110 LSA, you're not going to see a 200 rpm drop in peak power. Maybe 50-100 rpms.

If that logic were true, a 222/222 cam would peak like this:
114 LSA: 6400 rpms
112 LSA: 6200 rpms
110 LSA: 6000 rpms
108 LSA: 5800 rpms
106 LSA: 5600 rpms
I really don't think it's 100 rpms per 1 degree loss of lobe separation angle. Most LSAs on carbureted motor cams fall around 106. A 222/222 106 LSA cam is not going to peak at 5600 rpms in my opinion...probably more like 6000 rpms.
Patrick G is offline   Reply With Quote
Old 05-15-2002, 04:06 PM   #4
Launching!
 
Join Date: Nov 2001
Location: Valencia, CA
Posts: 227
Default Re: Powerband 110 lsa vs 112

actually depending on the cam timing events in relation to the motor it may not change the peak points at all. What it will do is change the shape of the curve though. So you may have the same tq and hp peaks, but what happens in between may look entirely different.

Then you get into exhaust setups. Open headers respond better to tighter LSA's. Rod/stroke ratios will effect what LSA works better. It goes on and on.

Sorry, but it is a really in depth subject.
Mike Morgan is offline   Reply With Quote
Old 05-15-2002, 04:53 PM   #5
TECH Enthusiast
iTrader: (1)
 
Join Date: Apr 2002
Location: Dallas-freakin'-Texas
Posts: 716
Default Re: Powerband 110 lsa vs 112

Patrick... I don't know which carb motor cams you've been looking at, but 106 is a pretty damn tight lobe sep. Most of your average SBC weekend warrior type of cams are ground on anything from a 110 lobe sep to 114.

Sure, once you sart getting into the SERIOUS cams (7500+ RPM mechanical rollers) you'll start seeing 106-108 degree lobe seps, but most of the streetable cams are ground wider than that.
BurnOut is offline   Reply With Quote
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
224r cam on a 110 lsa anyone ever ran this or thought about it? lusting4ls1 Generation III Internal Engine 14 12-11-2016 08:35 PM
228r 110lsa vs 233/239 mcginnis22 Generation III Internal Engine 7 10-17-2015 10:21 AM
which cam for what i want? 2000SSMAN Generation III Internal Engine 47 09-24-2011 01:43 PM
LG G5X3 vs MS3 SS#2906 Generation III Internal Engine 8 04-16-2010 04:49 PM
Any benefit to a 113 LSA over instead of 114 LSA for a medium sized cam? 99 Black Bird T/A Generation III Internal Engine 2 09-09-2002 06:18 AM


Tags
106, 108, 108degree, 110, 112, angle, cams, degree, headers, lob, lobe, lsa, open, sbc, sep, vs

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off



All times are GMT -5. The time now is 01:41 AM.


 
  • Ask a Question
    Get answers from community experts
What's your question?
Send