Automatic Transmission 2-Speed thru 10-Speed GM Autos | Converters | Shift Kits
Sponsored by:
Sponsored by:

Different Torque Converter?

Thread Tools
 
Search this Thread
 
Old Nov 1, 2020 | 10:37 PM
  #1  
300_Deluxe's Avatar
Thread Starter
Teching In
 
Joined: Nov 2017
Posts: 20
Likes: 1
Default Different Torque Converter?

Trying to figure out what to do with my torque converter. I’m going to be installing a 2004r behind my Lq9. The car is street/hwy driven only. Car specs below:

Rear end: 3.08

Rear tires: 275/40/18

TH350 > Upgrading to 2004r

Torque converter:<!--td {border: 1px solid #ccc;}br {mso-data-placement:same-cell;}-->Product Line: FTI Performance ESR Series Torque Converters, 9.5" diameter, Flash stall 3400-3600rpm

Cam specs:


Cam Style: Hydraulic roller tappet

Basic Operating RPM Range: Idle-6,200

Intake Duration at 050 inch Lift: 220

Exhaust Duration at 050 inch Lift: 230

Advertised Intake Duration: 275

Advertised Exhaust Duration: 285

Intake Valve Lift with Factory Rocker Arm Ratio: 0.553 in.

Exhaust Valve Lift with Factory Rocker Arm Ratio: 0.553 in.

Lobe Separation (degrees): 117

Looking back I still don’t think I understood enough to select a proper TC. When driving it shifts about 3500 rpm on normal take off from a light. Seems super high to me ( I guess I'm used to my old TC which was around 1800-2k rpms, I think). I’ve never taken the car to a dyno, so I can only guesimate the HP/Trq output. Just looking for opinions/recommendations on either keeping the TC I have now, in hopes it’ll be better with the 2004r, or putting a lower stall when I go for the swap. Ideally keeping rpms low on the fwy. Car is a '69 4 door Chevelle.
Reply
Old Nov 4, 2020 | 11:49 AM
  #2  
FTICONVERTERS's Avatar
LS1Tech Sponsor
15 Year Member
Liked
Loved
Community Favorite
iTrader: (3)
 
Joined: Aug 2007
Posts: 1,377
Likes: 96
From: Deland, FL
Default

Originally Posted by 300_Deluxe
Trying to figure out what to do with my torque converter. I’m going to be installing a 2004r behind my Lq9. The car is street/hwy driven only. Car specs below:

Rear end: 3.08

Rear tires: 275/40/18

TH350 > Upgrading to 2004r

Torque converter:<!--td {border: 1px solid #ccc;}br {mso-data-placement:same-cell;}-->Product Line: FTI Performance ESR Series Torque Converters, 9.5" diameter, Flash stall 3400-3600rpm

Cam specs:


Cam Style: Hydraulic roller tappet

Basic Operating RPM Range: Idle-6,200

Intake Duration at 050 inch Lift: 220

Exhaust Duration at 050 inch Lift: 230

Advertised Intake Duration: 275

Advertised Exhaust Duration: 285

Intake Valve Lift with Factory Rocker Arm Ratio: 0.553 in.

Exhaust Valve Lift with Factory Rocker Arm Ratio: 0.553 in.

Lobe Separation (degrees): 117

Looking back I still don’t think I understood enough to select a proper TC. When driving it shifts about 3500 rpm on normal take off from a light. Seems super high to me ( I guess I'm used to my old TC which was around 1800-2k rpms, I think). I’ve never taken the car to a dyno, so I can only guesimate the HP/Trq output. Just looking for opinions/recommendations on either keeping the TC I have now, in hopes it’ll be better with the 2004r, or putting a lower stall when I go for the swap. Ideally keeping rpms low on the fwy. Car is a '69 4 door Chevelle.
Do you have a link to that ESR Series converter you mentioned? The normal ESR series will not fit a 2004R. The ESRL Series will with a 27 spline turbine hub.
Feel free to shoot me a PM or email and we can further discuss converter options.
__________________
FTI COMPETITION CONVERTERS AND TRANSMISSIONS
"IT'S NOT CHEATING, IT'S THE COMPETITIVE EDGE."
1-866-726-8358
info@ftiperformance.com
FTIPerformance.com
FTI Converter build sheet

Reply




All times are GMT -5. The time now is 05:45 PM.