Home›Forums›Technical – General›Driveline›T56 into vn
This topic contains 14 replies, has 6 voices, and was last updated by ChrisM 6 years, 5 months ago.
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October 6, 2017 at 12:53 pm #24784
ChrisMParticipant- Melbourne Vic
- VN Calais LS1
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Posts: 140Hi All,
Just wondering if anyone can help. i have put a t56 into a vn and want to get the speedo to work. i know the vns are a hall effect sensor and the t56 is a induction sensor. can anyone tell me how i can fix this?
Thanks Chris
- This topic was modified 7 years, 1 month ago by ChrisM.
October 6, 2017 at 8:06 pm #24787
Judge1 FrazerParticipant- new zealand
- 1983 VB LSA MG9 6060 6 speed
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Posts: 775Give Malwood a ring he may have a hall affect sensor that will fit, I think the 3 wire vss is a hall affect
October 8, 2017 at 9:28 am #24789t56 vss is a 12v signwave
ls1 ecu output is a 12v square wave.
pretty sure the input for the vn cluster is 12v signwave
digital dakota sells a box that can adjust the pulse width to suit your driveline to get the pulse count right.
October 9, 2017 at 8:11 am #24797
ChrisMParticipant- Melbourne Vic
- VN Calais LS1
View build HERE
Posts: 140Hi All,
Thank you for your reply, i will look into the digital dakota box.
October 16, 2017 at 11:15 am #24906
ChrisMParticipant- Melbourne Vic
- VN Calais LS1
View build HERE
Posts: 140Hi All,
Just an update i have go the speedo to read using the LS1 ecu out put. I just need to check if it is accurate.
October 16, 2017 at 11:40 am #24909
VRSenator065Participant- Adelaide SA
- VR Senator LSx454 1960 Kombi (project) 1921 Nash Hot Rod (future project)
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Posts: 5 777Pretty sure from my poor memory when we did mine the speedo was out a little. The engineer picked it up and wanted it fixed. We did it on the dyno, just ran it up to a known speed and I think he just tweaked something in the ECU to correct it.
October 16, 2017 at 1:03 pm #24914For the money bought 2 speedo correctors off ‘festy’ from for sale section of pcmhacking.net recently
$80-$90 with ton of adjustability.
Tried to link it but didn’t work,can read thread on product of it’s different uses.
- This reply was modified 7 years, 1 month ago by gtrboyy.
October 16, 2017 at 1:33 pm #24916
VRSenator065Participant- Adelaide SA
- VR Senator LSx454 1960 Kombi (project) 1921 Nash Hot Rod (future project)
View build HERE
Posts: 5 777Nice work
October 16, 2017 at 2:53 pm #24917
ImmortalityParticipant- 97 HSV Senator 185i 02 VX L67 Calais
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Posts: 535Or download a GPS app on your phone, go for a drive and then adjust.
October 16, 2017 at 4:41 pm #24919
VRSenator065Participant- Adelaide SA
- VR Senator LSx454 1960 Kombi (project) 1921 Nash Hot Rod (future project)
View build HERE
Posts: 5 777Or download a GPS app on your phone, go for a drive and then adjust.
Is it easy to adjust yourself or do you have to have one of those scan tool thingys?
October 16, 2017 at 5:07 pm #24921
ImmortalityParticipant- 97 HSV Senator 185i 02 VX L67 Calais
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Posts: 535Depends on the PCM.
October 16, 2017 at 7:53 pm #24927If ls ecu & vn speedo are same signal then adjusting that way with gps phone app to check speed will be fine.
Assumed signal would be different the way vn-p speedo works.
October 17, 2017 at 6:11 am #24929
ImmortalityParticipant- 97 HSV Senator 185i 02 VX L67 Calais
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Posts: 535Easiest way VN-VS would be to get a speedo corrector kit. VT onward you can get the app to modify the dash data to correct the speedometer.
Obviously if you have an LS style PCM and access to HP tuners or the like than it can be done via the PCM.
June 1, 2018 at 8:16 pm #26508Hi All, Just an update i have go the speedo to read using the LS1 ecu out put. I just need to check if it is accurate.
So it did work directly, without the signal converter?
June 4, 2018 at 6:52 pm #26514
ChrisMParticipant- Melbourne Vic
- VN Calais LS1
View build HERE
Posts: 140Hi Stevoss, yeah it worked with out a converter. The speedo and tachometer were out. I know the speedo was out by 30kms and efi dynamics corrected them through the ECU.
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