GM Engine & Exhaust Performance EFI | GEN I/GEN II/GEN III/GEN IV Engines |Small Block | Big Block |

4l80e conversion underway

Thread Tools
 
Search this Thread
 
Old Jan 21, 2005 | 09:16 PM
  #11  
L-EATER's Avatar
Thread Starter
11 Second Truck Club
iTrader: (2)
 
Joined: Jan 2002
Posts: 1,412
Likes: 1
From: Missouri
Default

Ok, it is finished and I have put about 50 miles on it so far. I haven't been able to get on it yet-I made up a real quick edit file and flashed it into the PCM of my '02 then switched 'puters just so I could get it going. I have the wrong timing tables and it it detonating at any thing resembling heavy throttle.

The actual swap was so easy and simple that I don't know why I didn't do it sooner. The crossmember worked without modification, as did the driveshaft except for changing the slip yoke. The only things that had to be modified were the wiring, the rearward most cooler line, and the shifter linkage. I am going to reprogram the timing in the morning then I will be able to take it out and beat on it to see if it will get a 2nd gear scratch lol.
Reply
Old Jan 21, 2005 | 09:37 PM
  #12  
nice_n_lo_silverado's Avatar
On The Tree
iTrader: (1)
 
Joined: Nov 2004
Posts: 198
Likes: 0
From: [
Default

what are the advantages to the 80 swap, other than its a beefed up tranny?
Reply
Old Jan 21, 2005 | 11:46 PM
  #13  
SimpleManLance's Avatar
TECH Fanatic
iTrader: (9)
 
Joined: Feb 2004
Posts: 1,674
Likes: 0
From: Hartland, Michigan
Default

so there is a lot more drill hen a 60 e transgo shift kit . damn if i ever switch to an 80e i think i might pay to get it installed.
Reply
Old Jan 21, 2005 | 11:58 PM
  #14  
Flyer's Avatar
TECH Senior Member
iTrader: (1)
 
Joined: Jan 2003
Posts: 9,342
Likes: 0
From: Armpit of East TX
Default

Originally Posted by nice_n_lo_silverado
what are the advantages to the 80 swap, other than its a beefed up tranny?
There's not ... the 80e is heavy, and geared not real well for performance. The rotational mass is prolly close to DOUBLE of the 60e. Did I mention it's a heavy trans? Overall, the swap added close to 200 pounds to my truck.
Reply
Old Jan 22, 2005 | 12:41 AM
  #15  
parish8's Avatar
single digit dreamer
iTrader: (6)
 
Joined: Mar 2002
Posts: 9,743
Likes: 2
From: omaha ne
Default

200lb's!!!!??? how can that be?

i know it is heavy but 200lb's?
Reply
Old Jan 22, 2005 | 07:47 AM
  #16  
Flyer's Avatar
TECH Senior Member
iTrader: (1)
 
Joined: Jan 2003
Posts: 9,342
Likes: 0
From: Armpit of East TX
Default

It may have been closer to 150, but I know part of it was because of this ...

Reply
Old Jan 22, 2005 | 10:22 AM
  #17  
parish8's Avatar
single digit dreamer
iTrader: (6)
 
Joined: Mar 2002
Posts: 9,743
Likes: 2
From: omaha ne
Default

i dont think mine added as much weight as yours.

Reply
Old Jan 22, 2005 | 11:08 AM
  #18  
GMC SKI's Avatar
TECH Fanatic
 
Joined: Mar 2002
Posts: 1,452
Likes: 0
From: toronto
Default

Geez that Cross memember is huge dude
Mine is Kinda like what parish is running
I maybe added 5 lbs with it at most
Reply
Old Jan 22, 2005 | 11:25 AM
  #19  
chris99gmc's Avatar
TECH Resident
 
Joined: Sep 2004
Posts: 796
Likes: 11
From: Cali
Default

keep these posts on the 80's comming guys, i'm going to need them
Reply
Old Jan 22, 2005 | 12:15 PM
  #20  
qwank's Avatar
TECH Regular
iTrader: (4)
 
Joined: Aug 2003
Posts: 433
Likes: 5
From: Hudson, NH
Default

how much stronger is the 80 compared to a built up 65?

just my $.02 but i think a stock 4l80e with just a shift kit is probably a little stonger than a built 4l65e. the thing is an 80e will rob horse power so you dont really want to step up unless you really need it.
Reply



All times are GMT -5. The time now is 09:42 PM.