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04-21-2017, 02:46 PM
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#1
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Name: texastruck
Title: Green Behind the Ears
Status: Not Here
Join Date: Apr 2017
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Posts: 44
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Injection timing and TC stall speed
Hey guys, so I'm in the middle of shopping for a new torque converter for my 47rh. I bumped the timing of the engine up to 17* (stock was 12.5), and as I understand it, advancing the timing moves the powerband of the engine high up in the RPMs. Would I still want to go with a low stall (~300 rpm lower) torque converter, or would a stock stall speed work better. This truck will see virtually no towing, just moderate street performance, on 37 inch tires.
The engine has 4k gsk spring kit, 5x0.014 injectors. Stock turbo for now, haven't messed with the AFC yet.
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04-22-2017, 09:16 AM
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#2
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Name: CowboyEdition
Title: Because Diesel
Status: Not Here
Join Date: Feb 2013
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Posts: 192
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With a stock turbo and 17* BTDC timing I'd stick with a low stall. I'm a big fan of low stall converters. I'm currently running a 1600 stall on 15* timing with an S300 VNT and 5 x 0.014's.
Sent from my SM-G935W8 using Tapatalk
__________________
98 12v QCSB Sport Package
0 Plate, 4k gsk, 60# Springs
Ported/Polished/Oringed/Studed Head
DFI 5X0.014's, Standard Pump Mods
S300 VNT Turbo, Mechanically Actuated
Home-built trans with goodies
Borgeson, DOR, Bilstein and Carli Upgrades
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04-22-2017, 09:44 AM
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#3
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Name: stubz616
Title: Too Much Time
Status: Not Here
Join Date: Oct 2008
Location: Brewster, MA
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Posts: 1,327
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With 37" tires id favor closer to stock stall as long as the turbo setup won't be too large. Bigger turbo, higher stall
Sent from my iPhone using Tapatalk
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95 RCLB Farrell Diesel Stage 5 13mm pump,Hamilton Springs,Retainers,Pushrods,Fluidampr,Steed Speed,S467.7/soon to be S488 atmo,Full Billet Trans,DPC 4 disk TC,BD Pressure Loc,Haley Speed 5x.022s,Diesel Pros Custom Cam,O-Ringed,.010 over HG,A1000,Hellman sump,625 Studs, 30*
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04-22-2017, 03:06 PM
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#4
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Name: turbo2387
Title: Nipple Fluffer
Status: Not Here
Join Date: Jun 2011
Location: Indiana
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Posts: 665
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Ide favor the stock stall aswell. I loved my low stall when the truck disnt make much hp. Now its a complete pita! Big tires are harder to get motivated.
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04-22-2017, 03:28 PM
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#5
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Name: BluegrassDiesel
Title: UK2K!
Status: Not Here
Join Date: Apr 2007
Location: KENTUCKY
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Posts: 4,136
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Stock stall
__________________
Josh Land
Bluegrass Diesel Performance
Lancaster, Ky
SHOP ONLINE @ http://WWW.SHOPBLUEGRASS.COM
97 DodgePPL Limited Pro Stock "The Crippler"
09 3500 GMC CCDually
05 Silverado SS
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04-22-2017, 08:17 PM
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#6
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Name: blackcloudCTD95
Title: Too Much Time
Status: Not Here
Join Date: Oct 2007
Location: south Fl
Member`s Gallery
Posts: 754
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Low stall + big tires + big single = you will hate driving your truck
I wish I knew when I got my converter mines a 1500 or 1600 from fti it's a bad unit but I have to watch lock up I'm on 35's with 3.54's
__________________
98 qclb 5x14, 191's , benched pump to 425cc , 4k , 23* head studs , valve springs , hx35/sxe366 compound kit. built trans
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04-24-2017, 12:32 AM
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#7
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Name: texastruck
Title: Green Behind the Ears
Status: Not Here
Join Date: Apr 2017
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Posts: 44
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Thanks for your input guys. Looks like most suggest a stock stall.
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04-24-2017, 08:45 AM
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#8
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Name: turbo2387
Title: Nipple Fluffer
Status: Not Here
Join Date: Jun 2011
Location: Indiana
Member`s Gallery
Posts: 665
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if you don't plan on changing tires and axle ratios then yes
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04-24-2017, 09:01 AM
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#9
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Name: CorneliusRox
Title: Seasoned Rookie
Status: Not Here
Join Date: Dec 2012
Location: Detroit, MI
Member`s Gallery
Posts: 4,154
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I'm on 37's with 21deg timing (I float between 21 and 24), and use a 200 RPM stall lower converter with thick fluid to bring ti down another 100 RPM. I've been thinking about going up to stock stall a lot lately. I'd recommend stock stall.
__________________
Corey - BSME '21 Tesla Model 3 Perf
'22 DMax AT4 2500
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04-25-2017, 09:40 PM
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#10
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Name: blackcloudCTD95
Title: Too Much Time
Status: Not Here
Join Date: Oct 2007
Location: south Fl
Member`s Gallery
Posts: 754
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Quote:
Originally Posted by CorneliusRox
I'm on 37's with 21deg timing (I float between 21 and 24), and use a 200 RPM stall lower converter with thick fluid to bring ti down another 100 RPM. I've been thinking about going up to stock stall a lot lately. I'd recommend stock stall.
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I'm on 35's with 3.54's with a 1500-1600stall with a single 366 (73mm turbine qheel) not friendly lol I've thought about restalling mine to factory stall but I'm too lazy to pull the trans plus I'm doing twins .
For some reason the converter doesn't like bigger turbines other that stock I had bad bark with a 62/65 63/68 And a 64.5/73 and it wasn't the normal bark.. id be in it in 3rd gear 20-30psi and when it went into lock up the turbo barked until I took my foot out of it... stock hx35 doesn't do it
__________________
98 qclb 5x14, 191's , benched pump to 425cc , 4k , 23* head studs , valve springs , hx35/sxe366 compound kit. built trans
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04-26-2017, 06:53 AM
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#11
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Name: jlbayes
Title: Too Much Time
Status: Not Here
Join Date: Mar 2011
Location: michigan
Member`s Gallery
Posts: 2,399
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That would be surge.
__________________
Jacob, 97 rclb
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04-27-2017, 10:23 AM
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#12
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Name: SCHMITTY
Title: Not enough time
Status: Not Here
Join Date: Jun 2012
Location: K beach, AK
Member`s Gallery
Posts: 1,177
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Quote:
Originally Posted by CorneliusRox
I'm on 37's with 21deg timing (I float between 21 and 24), and use a 200 RPM stall lower converter with thick fluid to bring ti down another 100 RPM. I've been thinking about going up to stock stall a lot lately. I'd recommend stock stall.
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Which fluid ? I have a stock stall wth my silver 64 and while it can spool easy I wouldn't mind a little lower stall if it can be done with a fluid change. It is atf+4 right now
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stock 94
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05-04-2017, 07:51 PM
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#13
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Name: ctdthrasher
Title: Green Behind the Ears
Status: Not Here
Join Date: Feb 2015
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Posts: 77
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Not overly fond of my 1600 stall tc and current fuel setup for boosted launches but other than that it I actually don't mind it, even towing 11k lbs. The problem with the 1600 rpm stall is my turbo lights at 1650 so a boosted launch takes 10 seconds to push through. Stock stall from now on unless I have a stock truck and turbo, then definitely a low stall
__________________
98 12V quad cab. PDD 5x14s and 025. 63/68/.83
13.06@103. need more fuel....and air....and fuel
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05-05-2017, 09:43 AM
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#14
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Name: CorneliusRox
Title: Seasoned Rookie
Status: Not Here
Join Date: Dec 2012
Location: Detroit, MI
Member`s Gallery
Posts: 4,154
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Quote:
Originally Posted by SCHMITTY
Which fluid ? I have a stock stall wth my silver 64 and while it can spool easy I wouldn't mind a little lower stall if it can be done with a fluid change. It is atf+4 right now
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I've run Case Hy-Tran for the last three years with no problems. When it's really cold (-25F) I need to let the truck warm up for 2-3 min otherwise it'll try shifting straight to 3rd gear, but as soon as the fluid moves around for a couple minutes, it acts normal.
__________________
Corey - BSME '21 Tesla Model 3 Perf
'22 DMax AT4 2500
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05-05-2017, 10:21 AM
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#15
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Name: CowboyEdition
Title: Because Diesel
Status: Not Here
Join Date: Feb 2013
Member`s Gallery
Posts: 192
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I've been using Shell Spirax Trans Hydraulic in mine for a few years to help lower the stall. Never noticed any shifting issues yet but I always let the truck idle a few minutes anyway. Definitely tightened up the converter a little more when I switched from the Amsoil ATF.
Sent from my SM-G935W8 using Tapatalk
__________________
98 12v QCSB Sport Package
0 Plate, 4k gsk, 60# Springs
Ported/Polished/Oringed/Studed Head
DFI 5X0.014's, Standard Pump Mods
S300 VNT Turbo, Mechanically Actuated
Home-built trans with goodies
Borgeson, DOR, Bilstein and Carli Upgrades
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05-05-2017, 10:28 AM
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#16
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Name: CorneliusRox
Title: Seasoned Rookie
Status: Not Here
Join Date: Dec 2012
Location: Detroit, MI
Member`s Gallery
Posts: 4,154
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Quote:
Originally Posted by CowboyEdition
I've been using Shell Spirax Trans Hydraulic in mine for a few years to help lower the stall. Never noticed any shifting issues yet but I always let the truck idle a few minutes anyway. Definitely tightened up the converter a little more when I switched from the Amsoil ATF.
Sent from my SM-G935W8 using Tapatalk
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Yeah, I usually let it warm up a bit if it's that cold (or in general), but sometimes I've got places to be! ha ha Just worth mentioning. I've never ever had it happen above zero degrees.
__________________
Corey - BSME '21 Tesla Model 3 Perf
'22 DMax AT4 2500
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05-05-2017, 10:51 AM
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#17
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Name: CowboyEdition
Title: Because Diesel
Status: Not Here
Join Date: Feb 2013
Member`s Gallery
Posts: 192
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Quote:
Originally Posted by CorneliusRox
Yeah, I usually let it warm up a bit if it's that cold (or in general), but sometimes I've got places to be! ha ha Just worth mentioning. I've never ever had it happen above zero degrees.
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I just reread my post. Sorry, I didn't mean to come across like I was bashing your driving habits when I said that. I just meant I haven't experienced it yet although there have been mornings when I've wondered if it would all of a sudden do something funny. I understand what your saying completely. My truck is usually parked in the garage though, so most of the time it doesn't see less than - 10*C anyways.
Sent from my SM-G935W8 using Tapatalk
__________________
98 12v QCSB Sport Package
0 Plate, 4k gsk, 60# Springs
Ported/Polished/Oringed/Studed Head
DFI 5X0.014's, Standard Pump Mods
S300 VNT Turbo, Mechanically Actuated
Home-built trans with goodies
Borgeson, DOR, Bilstein and Carli Upgrades
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