Ls3 swap,GMPP Idle a lil high - Team Camaro Tech
LSx Swap LSx Engines in Non-LSx Vehicles

 2Likes
  • 2 Post By Vega
 
LinkBack Thread Tools Display Modes
post #1 of 8 (permalink) Old Jun 17th, 19, 10:48 AM Thread Starter
DT
Gold Lifetime Member
Donny
 
DT's Avatar
 
Join Date: Jun 2005
Location: Rockland Cty/Melb bch Fla
Posts: 5,217
Garage
Ls3 swap,GMPP Idle a lil high

Anyone else experience an idle just a tad too high on their LS3 ? I have a TKO so not really a big deal, just when I shut it down I can hear almost "run on" for lack of a better description.

1969 X66 396 LeMans Blue, M20, 373 (Sold)
1969 Convertible LS3 TKO 600, 373
DT is offline  
Sponsored Links
Advertisement
 
post #2 of 8 (permalink) Old Jun 17th, 19, 11:51 AM
Moderator
John
 
Vega$69's Avatar
 
Join Date: Sep 2010
Location: Vegas NV/Wesley Chapel FL
Posts: 13,319
Garage
Re: Ls3 swap,GMPP Idle a lil high

What RPM is your idle

2017 Corvette ZO6 with ZO7 Option
66 Chevelle Protour LS3/525(SOLD AT Mecum 2018)
69 SS396 Cortez Silver(SOLD)
69 Z28(Sold)
69 Pro Tour - LS3/T56
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
(SOLD)
69 Pro Tour - LS7/T56 (SOLD)
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.

69 Z28/RS Tribute355/5 Speed (SOLD)
69 RS Clone 427/TH400 (SOLD)
67 RSZZ502/5 Speed (SOLD)
69 Camaro 406 SBC/TH400 (SOLD)
Vega$69 is offline  
post #3 of 8 (permalink) Old Jun 17th, 19, 12:28 PM Thread Starter
DT
Gold Lifetime Member
Donny
 
DT's Avatar
 
Join Date: Jun 2005
Location: Rockland Cty/Melb bch Fla
Posts: 5,217
Garage
Re: Ls3 swap,GMPP Idle a lil high

1000

1969 X66 396 LeMans Blue, M20, 373 (Sold)
1969 Convertible LS3 TKO 600, 373

Last edited by DT; Jun 17th, 19 at 01:47 PM.
DT is offline  
 
post #4 of 8 (permalink) Old Jun 17th, 19, 02:56 PM
Moderator
John
 
Vega$69's Avatar
 
Join Date: Sep 2010
Location: Vegas NV/Wesley Chapel FL
Posts: 13,319
Garage
Re: Ls3 swap,GMPP Idle a lil high

480 or 525?

2017 Corvette ZO6 with ZO7 Option
66 Chevelle Protour LS3/525(SOLD AT Mecum 2018)
69 SS396 Cortez Silver(SOLD)
69 Z28(Sold)
69 Pro Tour - LS3/T56
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
(SOLD)
69 Pro Tour - LS7/T56 (SOLD)
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.

69 Z28/RS Tribute355/5 Speed (SOLD)
69 RS Clone 427/TH400 (SOLD)
67 RSZZ502/5 Speed (SOLD)
69 Camaro 406 SBC/TH400 (SOLD)
Vega$69 is offline  
post #5 of 8 (permalink) Old Jun 17th, 19, 05:14 PM Thread Starter
DT
Gold Lifetime Member
Donny
 
DT's Avatar
 
Join Date: Jun 2005
Location: Rockland Cty/Melb bch Fla
Posts: 5,217
Garage
Re: Ls3 swap,GMPP Idle a lil high

Quote:
Originally Posted by vega$69 View Post
480 or 525?
480

1969 X66 396 LeMans Blue, M20, 373 (Sold)
1969 Convertible LS3 TKO 600, 373
DT is offline  
post #6 of 8 (permalink) Old Jun 17th, 19, 05:16 PM
Senior Tech
Garth
 
Join Date: Oct 2012
Location: PA
Posts: 1,172
Garage
Re: Ls3 swap,GMPP Idle a lil high

My GMPP LS3 with their controller was around that RPM too, I think itís to compensate for an automatic and A/C.

Only way to get in there and change RPM is getting a tune.

1969 Camaro SS 350 LeMans Blue
2015 Z/28 - Red
2 x 1967 R/Tís
1977 Power Wagon
1978 Liíl Red Express
69L48Z27 is offline  
post #7 of 8 (permalink) Old Jun 17th, 19, 05:18 PM Thread Starter
DT
Gold Lifetime Member
Donny
 
DT's Avatar
 
Join Date: Jun 2005
Location: Rockland Cty/Melb bch Fla
Posts: 5,217
Garage
Re: Ls3 swap,GMPP Idle a lil high

Quote:
Originally Posted by 69L48Z27 View Post
My GMPP LS3 with their controller was around that RPM too, I think itís to compensate for an automatic and A/C.

Only way to get in there and change RPM is getting a tune.
Thanks Garth. I can live with it really. Just sometimes when I shut it down, it makes me cringe LOL. I haven't charged the AC yet, when I do I could always turn on the AC and shut it down.

1969 X66 396 LeMans Blue, M20, 373 (Sold)
1969 Convertible LS3 TKO 600, 373
DT is offline  
post #8 of 8 (permalink) Old Jun 17th, 19, 05:55 PM
Moderator
John
 
Vega$69's Avatar
 
Join Date: Sep 2010
Location: Vegas NV/Wesley Chapel FL
Posts: 13,319
Garage
Re: Ls3 swap,GMPP Idle a lil high

The 480s run around there and the 525s around 950

So yours sound about right but just to be sure

Check for any vacuum leaks around the TB and other port on the intake. Like where the emission line is eliminated.

From there it will take tuning with HP Tuners or other to adjust it down.
130fe and DT like this.

2017 Corvette ZO6 with ZO7 Option
66 Chevelle Protour LS3/525(SOLD AT Mecum 2018)
69 SS396 Cortez Silver(SOLD)
69 Z28(Sold)
69 Pro Tour - LS3/T56
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
(SOLD)
69 Pro Tour - LS7/T56 (SOLD)
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.

69 Z28/RS Tribute355/5 Speed (SOLD)
69 RS Clone 427/TH400 (SOLD)
67 RSZZ502/5 Speed (SOLD)
69 Camaro 406 SBC/TH400 (SOLD)
Vega$69 is offline  
Sponsored Links
Advertisement
 
Reply

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the Team Camaro Tech forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid email address.
NOTE we receive a lot of registrations with bad email addresses. IF you do not receive your confirmation email you will not be able to post. contact support and we will try and help.
Be sure you enter a valid email address and check your spam folder as well.



Email Address:
OR

Log-in










Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode



Posting Rules  
You may post new threads
You may 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 On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome