Ecu choice - Team Camaro Tech
LSx Swap LSx Engines in Non-LSx Vehicles

 5Likes
Reply
 
LinkBack Thread Tools Display Modes
post #1 of 21 (permalink) Old Mar 11th, 18, 05:06 PM Thread Starter
Gold Lifetime Member
Steve
 
Join Date: Apr 2002
Location: Southeast Pa.
Posts: 1,652
Ecu choice

If i am going to install a ls crate motor and i am also likely to tweak that motor is the gmpp controller a good idea?. What i have gathered on them is real positive up to the point you tweak the motor. Then it gets expensive and ugly. Anyone have any experience leaving the straight crate?

67RSSS......owned since 69. A basket case for most of it.
3d cad is offline  
Sponsored Links
Advertisement
 
post #2 of 21 (permalink) Old Mar 12th, 18, 10:14 AM
Senior Tech
Greg
 
Join Date: Aug 2011
Location: nebraska
Posts: 883
Re: Ecu choice

I guess I'm not sure where it gets ugly. People mod new cars all the time without changing the computers and everything is ok as long as you have a good tuner.

My 69 Build thread :
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.


1995 Z28 (sold)
1987 Iroc-Z (sold)
2005 350Z (sold)
gphusker is offline  
post #3 of 21 (permalink) Old Mar 12th, 18, 04:04 PM Thread Starter
Gold Lifetime Member
Steve
 
Join Date: Apr 2002
Location: Southeast Pa.
Posts: 1,652
Re: Ecu choice

As i understand it..... the easiest way to handle a ls swap is to get a crate motor and the proper ecu from gmpp for the crate and drive off into the sunset. All works really well until you decide to change something. Then you need the tuner but you also need to hack your ecu. This can involve a mod to the ecu or adding more hardware. Either way Til you're done with it all you have more money in the hardware then if you would have just bought a dominator or its equivalent in the first place. I am wondering if anyone here has been down this road lately.

67RSSS......owned since 69. A basket case for most of it.
3d cad is offline  
 
post #4 of 21 (permalink) Old Mar 12th, 18, 05:01 PM
Team Member
Don
 
Join Date: Jun 2006
Location: Mountain Springs, Texas
Posts: 3,960
Re: Ecu choice

Quote:
Originally Posted by 3d cad View Post
As i understand it..... the easiest way to handle a ls swap is to get a crate motor and the proper ecu from gmpp for the crate and drive off into the sunset. All works really well until you decide to change something. Then you need the tuner but you also need to hack your ecu. This can involve a mod to the ecu or adding more hardware. Either way Til you're done with it all you have more money in the hardware then if you would have just bought a dominator or its equivalent in the first place. I am wondering if anyone here has been down this road lately.
I donít think that is the case at all assuming you are talking about a cam swap etc. All you need is a tune. No hacking, just a simple tune. You need that regardless of what path you choose.

Don

1969 Camaro LSA 6L90E AME subframe and IRS
1969 Camaro vert LS3 4L65E Ridetech level 2 - sold
1959 El Camino project
1969 Mustang Sportsroof project
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.

1956 Cameo project - C5 drivetrain
1957 Buick Caballero project
dhutton is online now  
post #5 of 21 (permalink) Old Mar 12th, 18, 06:02 PM
Moderator
John
 
Vega$69's Avatar
 
Join Date: Sep 2010
Location: Vegas NV/Wesley Chapel FL
Posts: 13,285
Garage
Re: Ecu choice

Quote:
Originally Posted by 3d cad View Post
As i understand it..... the easiest way to handle a ls swap is to get a crate motor and the proper ecu from gmpp for the crate and drive off into the sunset. All works really well until you decide to change something. Then you need the tuner but you also need to hack your ecu. This can involve a mod to the ecu or adding more hardware. Either way Til you're done with it all you have more money in the hardware then if you would have just bought a dominator or its equivalent in the first place. I am wondering if anyone here has been down this road lately.
That's not correct. You can mod an LS with anything from a cam to a blower or twin turbos with the OEM ECU. It is very capable.

You will need to have a good experienced tuner or will need to learn to tune yourself. The learning curve is quite extensive.

Most use HP Turner or EFI Live. I prefer HP.
ragtook riches likes 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  
post #6 of 21 (permalink) Old Mar 12th, 18, 07:39 PM Thread Starter
Gold Lifetime Member
Steve
 
Join Date: Apr 2002
Location: Southeast Pa.
Posts: 1,652
Re: Ecu choice

Between the factory controller and the HP you have 1900 tied up. So why not use a FAST or Holley self tune setup which is the same or less money?

67RSSS......owned since 69. A basket case for most of it.
3d cad is offline  
post #7 of 21 (permalink) Old Mar 13th, 18, 04:31 AM
Senior Tech
Greg
 
Join Date: Aug 2011
Location: nebraska
Posts: 883
Re: Ecu choice

I wouldn't say it is less money. I may be wrong here so feel free to correct me but I think there is still manual tuning that is required with the Holley setup.

My 69 Build thread :
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.


1995 Z28 (sold)
1987 Iroc-Z (sold)
2005 350Z (sold)
gphusker is offline  
post #8 of 21 (permalink) Old Mar 13th, 18, 05:00 AM
Moderator
John
 
Vega$69's Avatar
 
Join Date: Sep 2010
Location: Vegas NV/Wesley Chapel FL
Posts: 13,285
Garage
Re: Ecu choice

Iím not that familiar with the Fast or Holley stand alones.

The self tuning features have limitations and would probably still need some manual tuning.
Vega$69 is offline  
post #9 of 21 (permalink) Old Mar 13th, 18, 05:08 AM
Team Member
Don
 
Join Date: Jun 2006
Location: Mountain Springs, Texas
Posts: 3,960
Re: Ecu choice

Self tuning algorithms do not work well with aggressive cams.

I think you are over thinking this. Drop in a 480 LS3 connect and cruise and drive the wheels off a nice balanced car with great driveability, performance and fuel economy....

Don
DT likes this.

1969 Camaro LSA 6L90E AME subframe and IRS
1969 Camaro vert LS3 4L65E Ridetech level 2 - sold
1959 El Camino project
1969 Mustang Sportsroof project
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.

1956 Cameo project - C5 drivetrain
1957 Buick Caballero project
dhutton is online now  
post #10 of 21 (permalink) Old Mar 13th, 18, 06:05 AM Thread Starter
Gold Lifetime Member
Steve
 
Join Date: Apr 2002
Location: Southeast Pa.
Posts: 1,652
Re: Ecu choice

Don, there is no question i am over thinking this, its what i do. I would rather put in the 525 and call it a day but in my overthinking of that i decided i didnt like the cam profile that got it there and would rather buy a lesser ls and put a cammotion titan3 stick in it since the only real differences between the three ls3's appears to be cam and springs and the rods.

I gotta get moving this morning. My well pump took a partial dump last night. Its holding 28 psi which is enough to keep my geothermal rig running. The contractor i use wont order a pump just cause i say so, so i gotta wait for a tech.... i am not up to pulling that thing myself any more.

67RSSS......owned since 69. A basket case for most of it.
3d cad is offline  
post #11 of 21 (permalink) Old Mar 13th, 18, 06:31 AM
Team Member
Don
 
Join Date: Jun 2006
Location: Mountain Springs, Texas
Posts: 3,960
Re: Ecu choice

Been there, done that with high lift heavy spring LS cams. Not convinced the juice is worth the squeeze. You are also voiding your GMPP warranty....

Extra 30 hp of the 525 is not worth it either imho....

Don

1969 Camaro LSA 6L90E AME subframe and IRS
1969 Camaro vert LS3 4L65E Ridetech level 2 - sold
1959 El Camino project
1969 Mustang Sportsroof project
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.

1956 Cameo project - C5 drivetrain
1957 Buick Caballero project

Last edited by dhutton; Mar 13th, 18 at 10:29 AM.
dhutton is online now  
post #12 of 21 (permalink) Old Mar 13th, 18, 06:44 AM
Moderator
John
 
Vega$69's Avatar
 
Join Date: Sep 2010
Location: Vegas NV/Wesley Chapel FL
Posts: 13,285
Garage
Re: Ecu choice

Quote:
Originally Posted by dhutton View Post
Been there, done that with high lift heavy spring LS cams. Not convinced the juice is worth the squeeze. You are also voiding your GMPP warranty....

Extra 30 hp out of the 525 is not worth it either imho....

Don
Ditto

I was going the buy a 430 for my chevelle and do a BT Stage 3 cam swap and tune would get me approx 550.

All said and done it would cost about the same as a 525.

So i decided stick with the 525 although the 480 would be just fine for $1000 less.

Less hassle

Warranty (in case I decide to sell the car I believe the warranty would be more important to a buyer then 25 more HP)

And they are pretty Bada**. Loved the 525 in My 69

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 #13 of 21 (permalink) Old Mar 13th, 18, 07:01 AM
Senior Tech
Greg
 
Join Date: Aug 2011
Location: nebraska
Posts: 883
Re: Ecu choice

I debated putting a cam in my 480 but I drove it all last summer and put on about 3500 miles. It's great for what it is. I already have more power than I can hook up with and it is a torque monster. The fuel mileage and drivability are pretty great too.
3d cad and dhutton like this.

My 69 Build thread :
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.


1995 Z28 (sold)
1987 Iroc-Z (sold)
2005 350Z (sold)
gphusker is offline  
post #14 of 21 (permalink) Old Sep 26th, 18, 08:22 AM
Apprentice
 
Join Date: Aug 2018
Posts: 17
Re: Ecu choice

I was gonna buy a stock 100,000 mile LQ4 without harness and do a standalone harness and controller.Add some 21/2" exhaust and headers.Anyone know of a good cheap harness and controller?I thought i would start this way and move up in a year or 2.Its gonna replace 250 hp 350 in my 69.


To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
racer86y is offline  
post #15 of 21 (permalink) Old Sep 26th, 18, 09:21 AM
Moderator
John
 
Vega$69's Avatar
 
Join Date: Sep 2010
Location: Vegas NV/Wesley Chapel FL
Posts: 13,285
Garage
Re: Ecu choice

Stock LQ4 only has 300 hp

Imho using a 100k engine is a crap shoot.

I would not go to the expense and work without going through the engine completely

Problem is by time you go through the engine youíll spend close to the cost of a crate motor

I would stay with the GM ECU.

Call PSI
DT likes 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