6spds, Cams, Bucking---What's the real deal
09-23-2006, 05:27 PM
#1
On The Tree
Thread Starter
Join Date: May 2006
Posts: 108
Likes: 0
Received 0 Likes
on
0 Posts
6spds, Cams, Bucking---What's the real deal Had a cam installed a few months ago and drives great except when I get below 1500 rpm's or so. This generally isn't a problem unless I'm in first gear. You always hear the phrase, "It's all in the tune". Just how much can a tune do??? Is it possible to get them tuned where there is no bucking at all??? I'm not talking about a SD tune either. I've just got a middle of the road cam but wondering if it and bigger cams the tuning can completely eliminate the bucking. What's been your experience? I did try to do a search on this subject but had little luck. Thanks
09-23-2006, 06:56 PM
#2
TECH Fanatic
iTrader: (1)
Join Date: Jun 2003
Location: Mount Dora, Fla
Posts: 1,876
Likes: 0
Received 0 Likes
on
0 Posts
The 110 LSA isn't helping anything, however I am surprised when you say you are having problems in first, particularly with 4.10's. I'm assuming your cam is a Comp XER.Surely you knew this cam was going to have a nasty idle compared to a 114 LSA. Maybe the tuner can give you a little insight.
09-23-2006, 08:10 PM
#3
TECH Apprentice
iTrader: (2)
Join Date: Jan 2006
Location: St. Louis, MO
Posts: 304
Likes: 0
Received 0 Likes
on
0 Posts
Alot of bigger cams are going to give you that bucking at lower RPMs. Mine does it in 6th gear at 60-65 when I let off the gas. I also have 4.10s. It does that b/c of the lope, the cam wants to make power and you're just not in the sweet spot.
09-23-2006, 08:13 PM
#4
12 Second Club
Join Date: Oct 2005
Location: New Castle,IN- West Lafayette,IN
Posts: 536
Likes: 0
Received 0 Likes
on
0 Posts
Originally Posted by 2001bluerata
Alot of bigger cams are going to give you that bucking at lower RPMs. Mine does it in 6th gear at 60-65 when I let off the gas. I also have 4.10s. It does that b/c of the lope, the cam wants to make power and you're just not in the sweet spot.
09-23-2006, 08:43 PM
#6
On The Tree
Join Date: Jun 2005
Posts: 143
Likes: 0
Received 0 Likes
on
0 Posts
Originally Posted by Beasst8
Yeah, I have noticed my MS4 does it quite often!! I am having 4.10s put in and a tune in the next few weeks.
09-23-2006, 08:47 PM
#7
On The Tree
Thread Starter
Join Date: May 2006
Posts: 108
Likes: 0
Received 0 Likes
on
0 Posts
Originally Posted by bigdsz
The 110 LSA isn't helping anything, however I am surprised when you say you are having problems in first, particularly with 4.10's. I'm assuming your cam is a Comp XER.Surely you knew this cam was going to have a nasty idle compared to a 114 LSA. Maybe the tuner can give you a little insight.
What the 110 LSA is helping is to give me ideal valve events which give me good power under the curve.
I also did want a little bit of a nasty idle. 
The tuner did say this was part of having a little more aggressive cam, but just looking for more opinions. Trending Topics
09-23-2006, 08:48 PM
#8
TECH Apprentice
iTrader: (2)
Join Date: Jan 2006
Location: St. Louis, MO
Posts: 304
Likes: 0
Received 0 Likes
on
0 Posts
Originally Posted by Insanekamel
im tuned but still have stock gears (3.42) it it bucks like a **** under 1600 rpms... but its ALOT better after the tune but still there.
09-23-2006, 10:28 PM
#12
TECH Apprentice
Join Date: Sep 2005
Posts: 339
Likes: 0
Received 0 Likes
on
0 Posts
Why not a speed demsity tune? The tuner can put your MAF back on after the tune and you will still have the drivabilty benefits from the tune. This is what I have on my car and it's made a huge difference from the dyno tune I had previously.
09-23-2006, 10:31 PM
#13
12 Second Club
Join Date: Jun 2005
Location: Kansas City, MO
Posts: 1,275
Likes: 0
Received 0 Likes
on
0 Posts
a tune can really help bucking, i know a local guy with a T2 cam in his ls1 gto, it used to buck bad under 2K rpm, he retuned it and has it dialed in to where it has little to no bucking under 1500 rpm
09-23-2006, 11:13 PM
#15
The guys who are telling you to live with the bucking or that your LSA is too narrow have not enjoyed the benefits of a proper driveability tune. It takes hours and sometims days to perfect, but when it's right, you'll have little to no bucking below 1500. I go through 4 school zones every morning and I have to crawl 1100 rpm in 3rd gear. I can't have bucking so this was a real priority for me. Bottom line, the guys who are telling you it can't be done need to stand out of the way from the guys who are doing it.
__________________
2013 Corvette Grand Sport A6 LME forged 416, Greg Good ported TFS 255 LS3 heads, 222/242 .629"/.604" 121LSA Pat G blower cam, ARH 1 7/8" headers, ESC Novi 1500 Supercharger w/8 rib direct drive conversion, 747rwhp/709rwtq on 93 octane, 801rwhp/735rwtq on race fuel, 10.1 @ 147.25mph 1/4 mile, 174.7mph Half Mile.
2016 Corvette Z51 M7 Magnuson Heartbeat 2300 supercharger, TSP LT headers, Pat G tuned, 667rwhp, 662rwtq, 191mph TX Mile.
2009.5 Pontiac G8 GT 6.0L, A6, AFR 230v2 heads. 506rwhp/442rwtq. 11.413 @ 121.29mph 1/4 mile, 168.7mph TX Mile
2000 Pewter Ram Air Trans Am M6 heads/cam 508 rwhp/445 rwtq SAE, 183.092 TX Mile
2018 Cadillac Escalade 6.2L A10 Pat G tuned.
LS1,LS2,LS3,LS7,LT1 Custom Camshaft Specialist For custom camshaft help press here.
Custom LSX tuning in person or via email press here.
2013 Corvette Grand Sport A6 LME forged 416, Greg Good ported TFS 255 LS3 heads, 222/242 .629"/.604" 121LSA Pat G blower cam, ARH 1 7/8" headers, ESC Novi 1500 Supercharger w/8 rib direct drive conversion, 747rwhp/709rwtq on 93 octane, 801rwhp/735rwtq on race fuel, 10.1 @ 147.25mph 1/4 mile, 174.7mph Half Mile.
2016 Corvette Z51 M7 Magnuson Heartbeat 2300 supercharger, TSP LT headers, Pat G tuned, 667rwhp, 662rwtq, 191mph TX Mile.
2009.5 Pontiac G8 GT 6.0L, A6, AFR 230v2 heads. 506rwhp/442rwtq. 11.413 @ 121.29mph 1/4 mile, 168.7mph TX Mile
2000 Pewter Ram Air Trans Am M6 heads/cam 508 rwhp/445 rwtq SAE, 183.092 TX Mile
2018 Cadillac Escalade 6.2L A10 Pat G tuned.
LS1,LS2,LS3,LS7,LT1 Custom Camshaft Specialist For custom camshaft help press here.
Custom LSX tuning in person or via email press here.
09-24-2006, 12:57 AM
#18
TECH Enthusiast
iTrader: (42)
Join Date: Mar 2006
Location: Gettysburg, PA
Posts: 725
Likes: 0
Received 0 Likes
on
0 Posts
look at mods in sig, and all i have is a quick cruising home tune from HP tuners...I know exactly waht your talkin about, i would get a real tune but ill be putting new cam in shortly.
Last edited by LS1IMPULSE; 09-24-2006 at 01:41 AM.
09-24-2006, 07:05 AM
#20
TECH Fanatic
Join Date: Oct 2002
Location: NW Houston,TX
Posts: 1,286
Likes: 0
Received 0 Likes
on
0 Posts
A good lsx tuner and some real world tunning will reduce your bucking problems.
I have a very small cam but i can idle through a parking lot at 850 no bucking
I have a very small cam but i can idle through a parking lot at 850 no bucking