After a few years, I decided to give the 6R80 another try but this time in my 2003 Mach1. It makes about 1/2 the horsepower of my TTSaleen so I thought it might work better.
Overall view -
Built 4.6 with 2.3 VMP Supercharger
L+M cams
Stock computer on E85
Previously had T56 magnum and made 790rwhp and ran 10.18 @ 140mph in 1/4.
2024 build for 6R80 with current pricing:
This time I decided to do things more on a budget and not go "all-out".
2014 6R80 trans and converter out of 2014 Lincoln Navigator - Ebay $600
Dorman 946-374 driveshaft - O'reilly's $430
Stiffler's crossmember - $0 - had leftover from previous project
Flexplate - $0 - had leftover from previous project
Midplate - $0 - had leftover from previous project
Bellhousing bolts - W714012-S439 - $23 (2 packs of 4 each)
IRS flange adapter - Neapco N3-2-1579 Flange Yoke 1350 Series - $50
Quick6 Gen2 6R80 controller - $1,255
2004 auto shifter - $150
2004 shift cable - XR3Z-7E395-AA - $63
Dipstick - 22200 - $165
Trans cooler - Derale 15300 Tube and Fin Cooler -$89
8AN PTFE Line Kit - $92
New trans filter - FT-188 - $18
New trans pan gasket - FEL-PRO TOS 18753 - $24
12 Quarts Mercon LV fluid - $99
Initial impressions -
My car has the L+M cams and a noticeable idle. While this works great for a manual car, I had to increase the base idle speed to compensate when putting car in gear.
Before it would die/idle too low due to drag of 6R80.
My base idle is 1,100 rpm now and in gear it will hold idle at 850 rpm.
With the AC on, it will hold idle at 950 rpm.
Other than this little annoyance, it drive VERY well.
The new Gen2 controller is much improved over the older Gen1 I had used before.
So far no error codes, shifts exactly where I tell it, and runs great.
Having the digital interface is also nice for diagnostics and telling what gear it is in.
Problems so far -
I had to adjust the shift cable twice to get it to tell the controller it was in the correct position. Not a big deal.
The driveshaft is a 1 piece, but made of steel. I have a vibration around 35-45 mph and it is pretty bad. The shaft is only out 1.5" from fully collapsed (had 3.5" total of movement available), so not sure if it just needs balancing or something else is happening.
The 104,000 mile stock transmission is NOT happy with my approximately 900 flywheel horsepower!
The first few days it ran and shifted perfectly.
After I BEAT on it a few times, it now flares going into 4th gear.
Guess I should have done the clutch upgrade while I had it out. Oh well live an learn!
I will tell you the car feels ALOT faster now, but it is killing the tires with my 3.73 rear gears. I need to drop that down and thinking something like 3.15 or 3.27 due to the instant torque of my supercharger (23# boost).
I'm hoping to run high 9's when I go back to the track, but won't until the weather cools off and I get the clutches changed in it.
Here's 2 videos I did on it.
1st is the entire swap process.
2nd is the "torture" session on street tires.
Overall view -
Built 4.6 with 2.3 VMP Supercharger
L+M cams
Stock computer on E85
Previously had T56 magnum and made 790rwhp and ran 10.18 @ 140mph in 1/4.
2024 build for 6R80 with current pricing:
This time I decided to do things more on a budget and not go "all-out".
2014 6R80 trans and converter out of 2014 Lincoln Navigator - Ebay $600
Dorman 946-374 driveshaft - O'reilly's $430
Stiffler's crossmember - $0 - had leftover from previous project
Flexplate - $0 - had leftover from previous project
Midplate - $0 - had leftover from previous project
Bellhousing bolts - W714012-S439 - $23 (2 packs of 4 each)
IRS flange adapter - Neapco N3-2-1579 Flange Yoke 1350 Series - $50
Quick6 Gen2 6R80 controller - $1,255
2004 auto shifter - $150
2004 shift cable - XR3Z-7E395-AA - $63
Dipstick - 22200 - $165
Trans cooler - Derale 15300 Tube and Fin Cooler -$89
8AN PTFE Line Kit - $92
New trans filter - FT-188 - $18
New trans pan gasket - FEL-PRO TOS 18753 - $24
12 Quarts Mercon LV fluid - $99
Initial impressions -
My car has the L+M cams and a noticeable idle. While this works great for a manual car, I had to increase the base idle speed to compensate when putting car in gear.
Before it would die/idle too low due to drag of 6R80.
My base idle is 1,100 rpm now and in gear it will hold idle at 850 rpm.
With the AC on, it will hold idle at 950 rpm.
Other than this little annoyance, it drive VERY well.
The new Gen2 controller is much improved over the older Gen1 I had used before.
So far no error codes, shifts exactly where I tell it, and runs great.
Having the digital interface is also nice for diagnostics and telling what gear it is in.
Problems so far -
I had to adjust the shift cable twice to get it to tell the controller it was in the correct position. Not a big deal.
The driveshaft is a 1 piece, but made of steel. I have a vibration around 35-45 mph and it is pretty bad. The shaft is only out 1.5" from fully collapsed (had 3.5" total of movement available), so not sure if it just needs balancing or something else is happening.
The 104,000 mile stock transmission is NOT happy with my approximately 900 flywheel horsepower!
The first few days it ran and shifted perfectly.
After I BEAT on it a few times, it now flares going into 4th gear.
Guess I should have done the clutch upgrade while I had it out. Oh well live an learn!
I will tell you the car feels ALOT faster now, but it is killing the tires with my 3.73 rear gears. I need to drop that down and thinking something like 3.15 or 3.27 due to the instant torque of my supercharger (23# boost).
I'm hoping to run high 9's when I go back to the track, but won't until the weather cools off and I get the clutches changed in it.
Here's 2 videos I did on it.
1st is the entire swap process.
2nd is the "torture" session on street tires.