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 28Likes
09-06-2016, 01:36 AM
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CC Member
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Join Date: Nov 2004
Location: Sydney,
NSW
Cobra Make, Engine: Classic Revival #3199. 366ci L76, T56 6 speed, Blue circle custom paint, Australias most original cobra 2009-2010
Posts: 2,396
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Not Ranked
Quote:
Originally Posted by Gav
Andrew's driving has been pretty jerky both in and out of the car so you may well be onto something Mike.
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Brave move for you to comment on anyones driving given recent events Gav 
Good info Mick - Mine makes peak torque at about 1200 rpm now so all good . Ill basically be idling around at nats.
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09-06-2016, 01:46 AM
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CC Member
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Join Date: Apr 2006
Location: Mildura,
vic
Cobra Make, Engine: FFR Coupe, 416ci of LS goodness
Posts: 2,349
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Not Ranked
I was a passenger...
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09-06-2016, 02:25 AM
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CC Member
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Join Date: Nov 2009
Location: Cheltenham,
Vic
Cobra Make, Engine: Classic Revival CR3516, LS3, Aussie Mike'd T-56, 3.70 LSD, AP brakes, Penske shocks
Posts: 1,616
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Not Ranked
Quote:
Originally Posted by Tenrocca
Ill basically be idling around at nats.
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oh so like last year then.
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Ben in AU
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09-06-2016, 03:57 AM
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CC Member
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Join Date: Jan 2001
Location: Sunbury,
VIC
Cobra Make, Engine: Rat Rod Racer, LS1 & T56
Posts: 5,391
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That was basically the problem Garret had. at 1200 RPM with the blower it's starting to make boost and a bunch of torque.
Cheers
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Mike Murphy
Melbourne Australia
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09-06-2016, 04:07 AM
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CC Member
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Join Date: Nov 2004
Location: Sydney,
NSW
Cobra Make, Engine: Classic Revival #3199. 366ci L76, T56 6 speed, Blue circle custom paint, Australias most original cobra 2009-2010
Posts: 2,396
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Not Ranked
Quote:
Originally Posted by Modena
oh so like last year then.
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what where you doin then?
Andrew Cornett (NSW) 1:10.5430
Ben Holko (VIC) 1:11.0390
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09-06-2016, 04:43 AM
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CC Member
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Join Date: Nov 2009
Location: Cheltenham,
Vic
Cobra Make, Engine: Classic Revival CR3516, LS3, Aussie Mike'd T-56, 3.70 LSD, AP brakes, Penske shocks
Posts: 1,616
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Not Ranked
Lulling you into a true sense of security (my car did have 30kms on it (it doesnt anymore)).
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Ben in AU
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09-08-2016, 04:24 AM
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CC Member
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Join Date: Jun 2009
Location: Sydney,
NSW
Cobra Make, Engine: RCM, Jag front and rear, LS3
Posts: 1,640
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My psi conversion loom for manual trans includes brake sensor but not clutch (or maybe I just ran the clutch to earth). The brake switch for Ecu is normally open. I just checked the psi manual and it says it's used by the drive by wire system. It says failure to wire correctly could result in the accelerator not working.
Regarding the speedo, do you maybe need a pull up resistor on the circuit?
Last edited by Zedn; 09-08-2016 at 04:34 AM..
Reason: Changed brake info
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09-08-2016, 05:57 AM
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CC Member
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Join Date: Nov 2004
Location: Sydney,
NSW
Cobra Make, Engine: Classic Revival #3199. 366ci L76, T56 6 speed, Blue circle custom paint, Australias most original cobra 2009-2010
Posts: 2,396
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Not Ranked
Interesting Liam. I've added in the brake inputs tonight as I figured it couldn't hurt. Curious to see if it makes a difference.
Some good news, fans are working perfectly after the latest tune. That big radiator of mine works well though. Hard time getting it up to temp so fan comes on (97)
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09-15-2016, 03:14 PM
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CC Member
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Join Date: Nov 2004
Location: Sydney,
NSW
Cobra Make, Engine: Classic Revival #3199. 366ci L76, T56 6 speed, Blue circle custom paint, Australias most original cobra 2009-2010
Posts: 2,396
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Not Ranked
Fans and Tune are now sorted - The extra torque with that baby cam is scary. Whether it equates to better times remains to be seen. Tyres and brakes already close at limit so I suspect not.
Still need to get the ECU speedo signal working. That one has me stumped.
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Last edited by Tenrocca; 09-15-2016 at 11:45 PM..
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09-15-2016, 07:12 PM
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CC Member
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Join Date: Nov 2009
Location: Cheltenham,
Vic
Cobra Make, Engine: Classic Revival CR3516, LS3, Aussie Mike'd T-56, 3.70 LSD, AP brakes, Penske shocks
Posts: 1,616
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Not Ranked
what's the speedo problem? The ECU puts out 5v square wave, is your speedo working at all?
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Ben in AU
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09-15-2016, 08:09 PM
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CC Member
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Join Date: Apr 2008
Location: Melbourne,
VIC
Cobra Make, Engine: Classic Revival CR 3505, LS1, T56 6 Speed, VE 3.45 LSD Rear, 6 Spot AP Fronts, 4 Spot Wilwood Rears
Posts: 1,121
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Not Ranked
Ben I think Andy's problem is getting his ECU to recognise the speedo signal from the transmission sensor etc.
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09-15-2016, 11:45 PM
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CC Member
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Join Date: Nov 2004
Location: Sydney,
NSW
Cobra Make, Engine: Classic Revival #3199. 366ci L76, T56 6 speed, Blue circle custom paint, Australias most original cobra 2009-2010
Posts: 2,396
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Not Ranked
Correct Greggy. No Speed in the ECU, but it is definitely getting the signal from the (stock) T56 vss as I piggy back off that to the speedo direct and it works no problem. There is no getting the reverse lockout working if I cant get a speed in the ecu - at the moment I have a little overide switch on the console. Not a biggy but one of the little niggles Id like to sort out eventually.
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09-16-2016, 05:35 AM
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CC Member
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Join Date: Jan 2002
Location: Melbourne, Australia,
VIC
Cobra Make, Engine: AP Pace427 (AP4033) GM L77 6.0L TR6060
Posts: 838
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Andy, I know your vss signal works for your speedo, but when you tried hooking it up to the ECU, did you disconnect the speedo?
And did you try swapping the pins as Ben and others suggested?
Failing that, another option is to use the brake light - wire that direct to the lockout solenoid (via a relay) bypassing the ECU altogether. So you can only select reverse while your foot is in the brake.
But getting speed to the ECU is better. If you want to use things like Harry's Laptimer or Dashcommand, or just service computer read, off the OBD2 port you'll be missing heaps of info. Not to mention the diagnostics will be reduced - distance since last reset, fuel consumption stats, etc (I know, I know, who cares about fuel consumption - but you get what I mean...).
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Guy
Cobra Progress guye-cobra.blogspot.com
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09-16-2016, 05:45 AM
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CC Member
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Join Date: Jan 2002
Location: Melbourne, Australia,
VIC
Cobra Make, Engine: AP Pace427 (AP4033) GM L77 6.0L TR6060
Posts: 838
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Not Ranked
(By the way, the reason I suggest disconnecting the speedo is maybe it's drawing to much current or something. I had problems getting both my speedo AND the ECU to work off the 'box sensor; in the end I connected my speedo to a different sensor; an unused wheel abs speed sensor).
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Guy
Cobra Progress guye-cobra.blogspot.com
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09-16-2016, 05:52 AM
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CC Member
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Join Date: Nov 2004
Location: Sydney,
NSW
Cobra Make, Engine: Classic Revival #3199. 366ci L76, T56 6 speed, Blue circle custom paint, Australias most original cobra 2009-2010
Posts: 2,396
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Not Ranked
Yep tried swapping wires and unhooking speedo. Good info though Guy, the tuner has mentioned most commodores take the vss off the abs sensors now.
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09-16-2016, 03:32 PM
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CC Member
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Join Date: Apr 2008
Location: Melbourne,
VIC
Cobra Make, Engine: Classic Revival CR 3505, LS1, T56 6 Speed, VE 3.45 LSD Rear, 6 Spot AP Fronts, 4 Spot Wilwood Rears
Posts: 1,121
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Not Ranked
Quote:
Originally Posted by Tenrocca
Yep tried swapping wires and unhooking speedo. Good info though Guy, the tuner has mentioned most commodores take the vss off the abs sensors now.
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Correct, Phil in VIC also had to do that with his CR as his donor VE Transmission didn't have a speed sensor on it. Maybe give that a go. Easy to test as you just take it off one of the front wheels and jack it up and spin by hand it to see if the ECU registers a signal or not. |
09-17-2016, 07:22 AM
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CC Member
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Join Date: Dec 2015
Location: Perth, Australia,
Posts: 100
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Quote:
Originally Posted by guye
(By the way, the reason I suggest disconnecting the speedo is maybe it's drawing to much current or something. I had problems getting both my speedo AND the ECU to work off the 'box sensor; in the end I connected my speedo to a different sensor; an unused wheel abs speed sensor).
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Guy, did your gearbox have a 2-wire (i.e. unpowered, inductive type) VSS? and likewise the wheel sensor?
Mike |
09-17-2016, 04:27 PM
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CC Member
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Join Date: Nov 2004
Location: Sydney,
NSW
Cobra Make, Engine: Classic Revival #3199. 366ci L76, T56 6 speed, Blue circle custom paint, Australias most original cobra 2009-2010
Posts: 2,396
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Not Ranked
ECU speed working!
After having another whinge at the tuner he sent me screen shots for the vss parameters he could change. What was pretty obvious to me, and not to him, was the little box that said "Transmission output shaft sensor" had a No in it. He had it all setup for ABS speed sensors (via a non existent BCM I think). Despite me telling him 1000 times what my setup was.
Anyway - now on to seeing if I can get rid of the reverse lockout switch.
Cheers
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09-17-2016, 05:34 PM
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CC Member
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Join Date: Nov 2009
Location: Cheltenham,
Vic
Cobra Make, Engine: Classic Revival CR3516, LS3, Aussie Mike'd T-56, 3.70 LSD, AP brakes, Penske shocks
Posts: 1,616
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Not Ranked
Good that you found the "problem", why do you want to get rid of the reverse lockout?
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Ben in AU
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