Conversions & Swaps LSX Engines in Non-LSX Vehicles
Sponsored by:
Sponsored by:

72 Comet with a turbo/LS 5.3 in it's future.....

Thread Tools
 
Search this Thread
 
Old Feb 12, 2017 | 03:47 AM
  #581  
BLKMGK's Avatar
On The Tree
 
Joined: May 2013
Posts: 195
Likes: 0
Default

So close! Very exciting, going to be a blast to drive I'm sure
Reply
Old Feb 12, 2017 | 06:16 AM
  #582  
franktf's Avatar
Thread Starter
TECH Resident
10 Year Member
iTrader: (6)
 
Joined: Aug 2014
Posts: 756
Likes: 33
From: Pinellas Park, FL
Default

Originally Posted by 350SS
one of my favorite swap engine bays
Thanks.....


Originally Posted by BLKMGK
So close! Very exciting, going to be a blast to drive I'm sure
I sure hope so!!!!!


It did run last night, well barely..... I was struggling to run, it was extremely lean..... After I got home last night I was looking the tune over and realized when I changed the map sensor in the base tune I used, it rescaled the base fuel map which caused it to be extremely lean down low..... I made some changes, we will see if it helped in a little while.....
Reply
Old Feb 13, 2017 | 07:00 PM
  #583  
franktf's Avatar
Thread Starter
TECH Resident
10 Year Member
iTrader: (6)
 
Joined: Aug 2014
Posts: 756
Likes: 33
From: Pinellas Park, FL
Default

Well, it kind of runs..... I put more fuel to it and that helped a little but it was still real flat, sounded like extremely late timing..... I thought maybe I screwed something up in the tune so I tried a base LS1 file, it was the same..... So next I decided to pull the plugs, and Houston we have a problem..... Cylinders 6 & 8 are doing nothing, not sure if it's fuel or spark yet..... I did check everything but the signal wires and all looks good so far..... So for now I have it narrowed down to bad plugs,coils, injectors, wiring or ecu(or any possible combination of mentioned items)..... This should be an easy fix.....
Reply
Old Feb 13, 2017 | 07:14 PM
  #584  
speedtigger's Avatar
Old School Heavy
15 Year Member
Photogenic
Liked
Loved
iTrader: (16)
 
Joined: May 2010
Posts: 8,835
Likes: 84
From: Florida
Default

Originally Posted by franktf
Cylinders 6 & 8 are doing nothing, not sure if it's fuel or spark yet..... I did check everything but the signal wires and all looks good so far..... So for now I have it narrowed down to bad plugs,coils, injectors, wiring or ecu(or any possible combination of mentioned items)..... This should be an easy fix.....
Oh yeah. Good times. LOL

Hope you find it quickly.
Reply
Old Feb 18, 2017 | 06:56 PM
  #585  
franktf's Avatar
Thread Starter
TECH Resident
10 Year Member
iTrader: (6)
 
Joined: Aug 2014
Posts: 756
Likes: 33
From: Pinellas Park, FL
Default

Checked grounds, injector signal/function, coil signal/function and it didn't really help..... Methodically went over everything again, and the problem turned out to be defective/shitty terminals for the coil plugs..... They had very poor contact area, a couple of the ones on cyl 6 & 8 were extremely loose..... I changed to some other ones I have that seemed to fit much better, through a new set of plugs in it and it fired up and idled good..... Is that some BS or what.....
Reply
Old Feb 18, 2017 | 08:07 PM
  #586  
Project GatTagO's Avatar
TECH Senior Member
20 Year Member
Liked
Loved
Top Answer: 1
iTrader: (7)
 
Joined: Mar 2003
Posts: 10,616
Likes: 1,883
From: Little Austin
Default

That sounds shitty. Was it at the coil or at the plug? There is a reason I used stock coil wires, even using the little aluminum heat shields.

Andrew
Reply
Old Feb 18, 2017 | 09:17 PM
  #587  
franktf's Avatar
Thread Starter
TECH Resident
10 Year Member
iTrader: (6)
 
Joined: Aug 2014
Posts: 756
Likes: 33
From: Pinellas Park, FL
Default

Originally Posted by Project GatTagO
That sounds shitty. Was it at the coil or at the plug? There is a reason I used stock coil wires, even using the little aluminum heat shields.

Andrew
Not the plug wire( I have stock plug wires and heat shields on it to ), the terminals in the 4 pin connector that powers the coils.....
Reply
Old Feb 19, 2017 | 10:35 AM
  #588  
BLKMGK's Avatar
On The Tree
 
Joined: May 2013
Posts: 195
Likes: 0
Default

Congrats!!! Put some miles on it
Reply
LS1 Tech Stories

The Best V8 Stories One Small Block at Time

story-0

7 Most Reliable High-Performance Engines GM Has Ever Built

 Verdad Gallardo
story-1

Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin

 Verdad Gallardo
story-2

6 Common C5 Corvette Failures and What's Involved In Repairing Them

 Pouria Savadkouei
story-3

Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph

 Verdad Gallardo
story-4

Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

 Pouria Savadkouei
story-5

Top 10 Most Powerful Chevy Trucks Ever Made!

 
story-6

Hennessey's New Supercharged Silverado ZR2 Has 700 HP

 Verdad Gallardo
story-7

Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes

 Verdad Gallardo
story-8

Awesome K5 Blazer Restomod Comes With C7 Corvette Power

 Verdad Gallardo
story-9

10 Camaros You Should Never Buy

 
Old Feb 19, 2017 | 09:09 PM
  #589  
franktf's Avatar
Thread Starter
TECH Resident
10 Year Member
iTrader: (6)
 
Joined: Aug 2014
Posts: 756
Likes: 33
From: Pinellas Park, FL
Default

It seems to be running pretty good now, just needs a couple minor adjustments and some learn time driving..... First I need to remove the trans to address a minor leak problem, I put studs in to retain the pump and there is fluid seeping out the threads between the studs and nuts(odd, but needs to be addressed)..... After that I need to repair/assemble the grill, paint the stone guard, paint the hood, assemble the front end stuff, bolt the seats and seat belts in..... It's getting there but still so far away.....
Reply
Old Feb 19, 2017 | 09:26 PM
  #590  
Project GatTagO's Avatar
TECH Senior Member
20 Year Member
Liked
Loved
Top Answer: 1
iTrader: (7)
 
Joined: Mar 2003
Posts: 10,616
Likes: 1,883
From: Little Austin
Default

We need a video with vroom vroom noises!

Andrew
Reply
Old Feb 20, 2017 | 10:04 AM
  #591  
aggie91's Avatar
TECH Apprentice
 
Joined: Oct 2013
Posts: 319
Likes: 4
From: Longview, TX
Default

Great to hear that you got it running, sucks the trans has to come out...
Reply
Old Feb 20, 2017 | 04:15 PM
  #592  
franktf's Avatar
Thread Starter
TECH Resident
10 Year Member
iTrader: (6)
 
Joined: Aug 2014
Posts: 756
Likes: 33
From: Pinellas Park, FL
Default

Originally Posted by Project GatTagO
We need a video with vroom vroom noises!

Andrew
It doesn't sound like much, but I will try to get something in the near future.....


Originally Posted by aggie91
Great to hear that you got it running, sucks the trans has to come out...
Me too!!!!! The trans is not that big of a deal, but it's just one more thing I really didn't want to do.....
Reply
Old Feb 21, 2017 | 02:08 AM
  #593  
Jimbo1367's Avatar
TECH Senior Member
15 Year Member
Liked
Loved
Community Favorite
 
Joined: Jul 2009
Posts: 8,033
Likes: 661
Default

LOL @ "vroom vroom noises". But yeah, We really need that. LOL
Originally Posted by Project GatTagO
We need a video with vroom vroom noises!

Andrew
Reply
Old Feb 21, 2017 | 10:20 AM
  #594  
speedtigger's Avatar
Old School Heavy
15 Year Member
Photogenic
Liked
Loved
iTrader: (16)
 
Joined: May 2010
Posts: 8,835
Likes: 84
From: Florida
Default

Yep, needs some video or have to come by and see it in person!
Reply
Old Feb 25, 2017 | 02:23 PM
  #595  
franktf's Avatar
Thread Starter
TECH Resident
10 Year Member
iTrader: (6)
 
Joined: Aug 2014
Posts: 756
Likes: 33
From: Pinellas Park, FL
Default

I got the trans out and on the bench this morning..... Then I cleaned my truck inside and out, leaving early in the am for Biloxi.....

Here it is on the bench.....




It was leaking fluid from the 3 bottom studs in the pump, the fluid was coming up the threads between the nuts and studs.....




At first I couldn't figure out how the fluid was getting to the studs until I looked at a pump gasket today, the holes for the bottom 3 mounting holes all intersect a passage or opening through a notch in the gasket..... I thing I can just change out the studs for bolts and not worry about it, the trans seemed to be working fine other then a small leak..... Here's what I am talking about with the gasket.....

Reply
Old Mar 6, 2017 | 04:51 AM
  #596  
franktf's Avatar
Thread Starter
TECH Resident
10 Year Member
iTrader: (6)
 
Joined: Aug 2014
Posts: 756
Likes: 33
From: Pinellas Park, FL
Default

Went o the NMRA race on Saturday, but I still managed to fix the trans and get it back in over the weekend..... Then I changed the fuel injectors and opened the throttle blade a little more..... I also got the coolant drained, removed the radiator and fan controller..... I got most of the time delay relay arrangement wired, I would have got it done but I didn't have the correct crimpers for the 56 series terminals at the shop..... I will get them from work and finish that up.....
Reply
Old Mar 6, 2017 | 04:10 PM
  #597  
Project GatTagO's Avatar
TECH Senior Member
20 Year Member
Liked
Loved
Top Answer: 1
iTrader: (7)
 
Joined: Mar 2003
Posts: 10,616
Likes: 1,883
From: Little Austin
Default

Frank, what crimpers do you use for the 56 series terminals?

Andrew
Reply
Old Mar 7, 2017 | 11:14 AM
  #598  
aggie91's Avatar
TECH Apprentice
 
Joined: Oct 2013
Posts: 319
Likes: 4
From: Longview, TX
Default

I am interested to see what he uses too.

I have been using this one, not sure its the best for the 56 series terminals...
http://crimpsupply.com/packard-delph...pack-tool.html
Reply
Old Mar 8, 2017 | 05:04 AM
  #599  
franktf's Avatar
Thread Starter
TECH Resident
10 Year Member
iTrader: (6)
 
Joined: Aug 2014
Posts: 756
Likes: 33
From: Pinellas Park, FL
Default

Originally Posted by Project GatTagO
Frank, what crimpers do you use for the 56 series terminals?

Andrew
We have the regular GM ones at work.....


Originally Posted by aggie91
I am interested to see what he uses too.

I have been using this one, not sure its the best for the 56 series terminals...
http://crimpsupply.com/packard-delph...pack-tool.html
I have those, they work OK on the female 56's but not so good on the male ones..... The GM tools have a lot more bulk to the crimping heads and longer handles for better leverage.....

I'll get a pic of them today.....
Reply
Old Mar 8, 2017 | 04:36 PM
  #600  
Project GatTagO's Avatar
TECH Senior Member
20 Year Member
Liked
Loved
Top Answer: 1
iTrader: (7)
 
Joined: Mar 2003
Posts: 10,616
Likes: 1,883
From: Little Austin
Default

Originally Posted by franktf
We have the regular GM ones at work.....




I have those, they work OK on the female 56's but not so good on the male ones..... The GM tools have a lot more bulk to the crimping heads and longer handles for better leverage.....

I'll get a pic of them today.....
The male 56 series terminals have that extra tang at the very bottom and my current crimper just sheers it off. So I am eager to see what you are using that works well the male 56 series terminals.

Andrew
Reply



All times are GMT -5. The time now is 09:45 PM.

story-0
7 Most Reliable High-Performance Engines GM Has Ever Built

Slideshow:These GM engines didn't just make huge power, they survived abuse, boost, track days, and six-digit mileage with a reputation for refusing to quit.

By Verdad Gallardo | 2026-05-21 16:45:27


VIEW MORE
story-1
Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin

Slideshow: This heavily modified 1971 Camaro mixes classic muscle car styling with a fifth-generation Camaro interior and modern LS3 power.

By Verdad Gallardo | 2026-05-12 18:06:42


VIEW MORE
story-2
6 Common C5 Corvette Failures and What's Involved In Repairing Them

Slideshow: From wobbling harmonic balancers to failed EBCMs, these are the issues that define long-term C5 ownership and what repairs typically involve.

By Pouria Savadkouei | 2026-05-07 18:44:57


VIEW MORE
story-3
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph

Slideshow: A modern Camaro transformed into a retro icon, this limited-run "Bandit" build blends nostalgia with brute force in a way few revivals manage.

By Verdad Gallardo | 2026-04-21 13:57:02


VIEW MORE
story-4
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

Slideshow: Cadillac didn't just crash the high-performance luxury vehicle party, it showed up loud, supercharged, and occasionally a little unhinged...

By Pouria Savadkouei | 2026-04-16 10:05:15


VIEW MORE
story-5
Top 10 Most Powerful Chevy Trucks Ever Made!

Slideshow: Top ten most powerful Chevy trucks ever made

By | 2026-03-25 09:22:26


VIEW MORE
story-6
Hennessey's New Supercharged Silverado ZR2 Has 700 HP

Slideshow: Hennessey has turned the Silverado ZR2 into a 700-hp off-road monster with supercharged V8 power and a limited production run.

By Verdad Gallardo | 2026-03-24 18:57:52


VIEW MORE
story-7
Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes

Slideshow: A one-off sports car that looks like a vintage Italian exotic-but hides a C6 Corvette underneath-just sold for the price of a new mid-engine Corvette.

By Verdad Gallardo | 2026-03-23 18:53:41


VIEW MORE
story-8
Awesome K5 Blazer Restomod Comes With C7 Corvette Power

Slideshow: A heavily reworked 1972 K5 Blazer swaps its off-road roots for a low-slung street-focused build with modern V8 power.

By Verdad Gallardo | 2026-03-09 18:08:45


VIEW MORE
story-9
10 Camaros You Should Never Buy

Slideshow: There are thousands of used Camaros on the market but we think you should avoid these 10

By | 2026-02-17 17:09:30


VIEW MORE