Torque curves

Engines and Engine Systems
Post Reply
User avatar
Peter Connan
Moderator
Posts: 5337
Joined: 10 Sep 2010 07:21
Full Name: Peter Connan
Nickname: Piet
Home Town: Kempton Park
Current 4x4: 1996 Patrol 4.5SGL
Home Language: Afrikaans
Location: Kempton Park
Has thanked: 263 times
Been thanked: 344 times

Torque curves

Post by Peter Connan » 15 Mar 2018 19:05

Does anybody know where i can get torque curves for the various engines? Preferably un-modified engines, and ideally also going down to fairly low revs.
Mag ons ons kenniskry met lekkerkry aanhoukry.

User avatar
Alex Roux
Patrolman 1000+
Patrolman 1000+
Posts: 2620
Joined: 11 Jul 2011 10:54
Full Name: Alexander Roux
Nickname: Witblits
Home Town: Johannesburg
Current 4x4: 2004 GU 3TDi (Lexus) - aka "Witblits"
1996: GQ TB48 conversion - aka "Skilpad"
1993: GQ SWB TB42 - aka "Shortie"
Home Language: Afrikaans
Has thanked: 41 times
Been thanked: 134 times

Re: Torque curves

Post by Alex Roux » 15 Mar 2018 21:08

Ons moet ‘n powerrun dag hou...
Skilpad & Shortie

User avatar
Michael
Moderator
Posts: 2583
Joined: 05 Mar 2014 14:39
Full Name: Michael
Nickname: Steyn
Home Town: Centurion
Current 4x4: Patrol GU 4.2 Turbo Diesel
Home Language: Afrikaans
Location: Centurion, PTA
Has thanked: 152 times
Been thanked: 253 times

Re: Torque curves

Post by Michael » 16 Mar 2018 09:25

Ja Peter dit gaan moeilik wees om so iets te kry. Dyno dag gaan die enigste way wees.
Ek het standaard TD42 curves, maar als begin eers op 1,500rpm.
Vir een of ander rede dyno almal eers vanaf 1,500rpm af
"The Just shall live by Faith" Rom1:17

Check out my build here My Patrol
And my engine rebuild here mostly engine related stuff

User avatar
Peter Connan
Moderator
Posts: 5337
Joined: 10 Sep 2010 07:21
Full Name: Peter Connan
Nickname: Piet
Home Town: Kempton Park
Current 4x4: 1996 Patrol 4.5SGL
Home Language: Afrikaans
Location: Kempton Park
Has thanked: 263 times
Been thanked: 344 times

Re: Torque curves

Post by Peter Connan » 16 Mar 2018 15:04

Michael, dis 'n beginpunt. Kan jy vir my een stuur asseblief?
Mag ons ons kenniskry met lekkerkry aanhoukry.

User avatar
Michael
Moderator
Posts: 2583
Joined: 05 Mar 2014 14:39
Full Name: Michael
Nickname: Steyn
Home Town: Centurion
Current 4x4: Patrol GU 4.2 Turbo Diesel
Home Language: Afrikaans
Location: Centurion, PTA
Has thanked: 152 times
Been thanked: 253 times

Re: Torque curves

Post by Michael » 19 Mar 2018 12:10

Peter, al wat ek huidiglik kan kry is n kombenasie van n NA dyno grafiek met n ander voertuig se krag bo hom.
Die blou lyn is n NA TD42
Attachments
FB_IMG_1517596342760.jpg
FB_IMG_1517596339118.jpg
"The Just shall live by Faith" Rom1:17

Check out my build here My Patrol
And my engine rebuild here mostly engine related stuff

User avatar
Peter Connan
Moderator
Posts: 5337
Joined: 10 Sep 2010 07:21
Full Name: Peter Connan
Nickname: Piet
Home Town: Kempton Park
Current 4x4: 1996 Patrol 4.5SGL
Home Language: Afrikaans
Location: Kempton Park
Has thanked: 263 times
Been thanked: 344 times

Re: Torque curves

Post by Peter Connan » 19 Mar 2018 17:31

Dankie Michael
Mag ons ons kenniskry met lekkerkry aanhoukry.

mvcoller
Senior Member
Senior Member
Posts: 203
Joined: 07 Apr 2009 07:13
Full Name: Malcolm van Coller
Nickname: mvcoller
Home Town: Kensington, Jhb
Current 4x4: 2008 3.0 Di Patrol GL
and
2011 2.5 Di Pathfinder LE
Home Language: Afr & Eng
Location: Kensington, Jhb
Has thanked: 3 times
Been thanked: 35 times
Contact:

Re: Torque curves

Post by mvcoller » 20 Mar 2018 12:00

Hi Peter,

Unfortunately my figures are not for an unmodified Patrol.

Herewith my 3.0Di (2008) pre CRDi motor's torque figures as at Jan 2018.

75mm exhaust,
300 x 600 front mount intercooler,
Madman,
SAC Chip
(at that stage with 265/70 x 17 tyres - 32's) - Tyre size makes a huge difference on torque figures.
This was after new injectors were fitted in November and a turbo recon done in April 2017.

After the above mods, these are my torque figures

RPM - BEFORE - AFTER
1500 - 192.3 - 306.3 NM
2000 - 293.2 - 362.0 NM
2500 - 277.0 - 342.7 NM
3000 - 245.8 - 300.3 NM
3500 - 235.0 - 267.7 NM
4000 - 185.3 - 205.8 NM

User avatar
Peter Connan
Moderator
Posts: 5337
Joined: 10 Sep 2010 07:21
Full Name: Peter Connan
Nickname: Piet
Home Town: Kempton Park
Current 4x4: 1996 Patrol 4.5SGL
Home Language: Afrikaans
Location: Kempton Park
Has thanked: 263 times
Been thanked: 344 times

Re: Torque curves

Post by Peter Connan » 20 Mar 2018 17:02

Pretty impressive Malcolm. Are those corrected for friction (ie estimated flywheel figures)?
Mag ons ons kenniskry met lekkerkry aanhoukry.

mvcoller
Senior Member
Senior Member
Posts: 203
Joined: 07 Apr 2009 07:13
Full Name: Malcolm van Coller
Nickname: mvcoller
Home Town: Kensington, Jhb
Current 4x4: 2008 3.0 Di Patrol GL
and
2011 2.5 Di Pathfinder LE
Home Language: Afr & Eng
Location: Kensington, Jhb
Has thanked: 3 times
Been thanked: 35 times
Contact:

Re: Torque curves

Post by mvcoller » 24 Mar 2018 14:38

No Peter, that was actual readings for torque at the wheels.

Post Reply

Return to “09. Engines”

Who is online

Users browsing this forum: No registered users and 1 guest