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pasho Profile
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X-TRAIL NEWBIE
 


Date Registered: 05-2005
Location: Tahmoor NSW
TOTAL POSTS: 62
Reply | QUOTE
Re: "Piggy Back" ECU


Jalal,
I went for the Haltech Miniceptor add on for my work van [Mitsubishi WA Express 2.4]in June. Good for tax debit.
Workhorse of course and fitted out with drawer units and no doubt overloaded; I do property maintenance.
Any way, Spiro at Autotech spent 10 hrs on mine due to it being the first of this type of wiring and managed to get 12 kw extra; from 49.5 to 61.7 :over 20%
Went in for a unichip, but was recommended the Haltech. I commend these guys to anybody wanting an uplift for their money [$1295]
I havent done enough to the EXY to fit a chip yet.

---
Clem X-147

We fix anything.

09 White T31 ST : Leather, Full mats, Foglights, Tint, Dark windscreen band, Gas struts, Bonnet protector, Gps, Reverse camera. Rhino racks, Weathershield set of 4, Billet 3 piece grille.
12/Jul/2008, 12:47 am Link to this post Send Email PM   Send Private Message
 
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Date Registered: 02-2004
Location: SUTHERLAND, SYDNEY
TOTAL POSTS: 29094
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Re: "Piggy Back" ECU


Good stuff Clem and that's certainly a good increase in power for a van.

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12/Jul/2008, 12:53 am Link to this post Send Private Message MSN Blog
 
Revhead Kev Profile
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Date Registered: 10-2006
Location: Mona Vale, Sydney, AUSTRALIA
TOTAL POSTS: 5731
Reply | QUOTE
Re: "Piggy Back" ECU


Today saw me join the "Haltech Club".

Arrived at AutoTech, the same place where Jalal got his fitted.
I had previously spoken with Spiro (the main man) over the phone and had a short visit last week where it was decided that fitting and tuning the Haltech would be much easier this time as all the development work for wiring and programming was done on Jalal's. After the day's events, I can confirm that Spiro was mostly correct, except for the dyno mode which I will explain later.

Time frame of the day's events went as follows...
10:30am arrive.
11:30am initial power run.
1:30pm Haltech wired ready to program.
2:15pm Haltech programmed and Xtrail started.
(had to wait my turn on the dyno)
3:30pm started dyno runs to confirm and adjust initial tuning from Jalal's parameters.
4:00pm after about 4-6 dyno runs all finished.

Chart of Kw & Torque
Image

Chart of kW & Air:Fuel ratio
Image

As with Jalal's, the Air:Fuel was way too rich with the extractors+full exhaust+CAI and the Haltech fixed that very well. Also there was about a 20% gain (12kW/62kW) in power.
The figures are for a full 4WD dyno run and according to Spiro they will be lower than a 2WD dyno run so we need to judge the performance gain by percentage over previous if we want to compare my figures with Jalal's.

As mentioned earlier there was initial indecision as to if a 2WD dyno run could be done with the 4WD relay pulled out because after pulling the relay the rear wheels were still turning (although I did not see it). I doubt there would be any great amount of torque there because the wiring diagram for the Xtrail shows no power being able to get to the rear transfer solenoid with the relay pulled. This remains a mystery and we decided to be safe and do full 4WD dyno runs with the lower absolute figures.

Here is the video of my Xtrail on the dyno during one of the runs.
Note the change in sound as the butterflys open at 5000rpm emoticon
4WD Dyno Run at AutoTech

All up very pleased with the improvement in Air:Fuel ratio and both the Power and Torque gains but a little disapointed we could not dyno in 2WD to get a comparison with Jalal's figures directly. Better to be safe than sorry I think emoticon

---
Kev X450(c) T30 Guru
03 Titanium Ti T30 Series 1 **MODIFIED**
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10/Dec/2008, 10:14 pm Link to this post Send Email PM   Send Private Message Blog
 
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Date Registered: 02-2004
Location: SUTHERLAND, SYDNEY
TOTAL POSTS: 29094
Reply | QUOTE
Re: "Piggy Back" ECU


Good stuff Kev and welcome to the "power club" emoticon

After seeing these results, all I can say that a Black Exy is always faster than any other colour. hahahahahahaha emoticon

It must have been the chrome I had on my exy that made it so powerful that day and caused the rear diff to go kaput LOL emoticon

I'm itching to go back and do another dyno run with Spiro so we can get the most accurate comparison but in all honesty, I can't afford a repeat of the previous problem I had and the expensive repair bill, so I think I'll play it safe and maybe Taylor (who's catching-up with us) can do the dyno run when he fits his piggy back, so we can get to the bottom of this.

Mate, enjoy the power for now and forget about fuel economy for a while emoticon

You now have to fill her up with 98 fuel only.

---

11/Dec/2008, 5:25 am Link to this post Send Private Message MSN Blog
 
Revhead Kev Profile
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Date Registered: 10-2006
Location: Mona Vale, Sydney, AUSTRALIA
TOTAL POSTS: 5731
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Re: "Piggy Back" ECU


quote:

jalalski wrote:
I'm itching to go back and do another dyno run with Spiro so we can get the most accurate comparison



Me too Jalal and I was disappointed to not get a 2WD dyno run which would have shown the most power but even Spiro said he did not want to risk it and did all 4WD dyno runs.
Spiro thinks our systems and mods are so similar that our power graphs and figures should also be similar and explains the 74kW v's 100kW as the difference in 4WD and 2WD drivetrain losses.

So Taylor, it is up to you now to prove the "all 4 wheels" power and compare it to the "front wheels only" power in 2WD for the Xtrail.
Maybe you could disconnect your tailshaft and do a true 2WD dyno run as well.
This was something I thought of and may still talk to Spiro about but he was way too busy to even suggest it yesterday.

Last edited by Revhead Kev, 11/Dec/2008, 6:16 am


---
Kev X450(c) T30 Guru
03 Titanium Ti T30 Series 1 **MODIFIED**
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11/Dec/2008, 6:10 am Link to this post Send Email PM   Send Private Message Blog
 
NissanTaylor Profile
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Date Registered: 06-2008
Location: Canberra, ACT
TOTAL POSTS: 244
Reply | QUOTE
Re: "Piggy Back" ECU


Looks like ive got some saving to do! im still trying to save the money for the k-mac springs but keep spending it on other assorted goodies and shiney things. its definatly on my list of mods for the new year! then i can join the power club emoticon

---

X-897
My Old Platium 07 STS Xtreme - Click Here to check out my mods and pics
Now own a Black C34 Nissan Stagea RS4-S
15/Dec/2008, 12:23 pm Link to this post Send Email PM   Send Private Message
 
Revhead Kev Profile
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Date Registered: 10-2006
Location: Mona Vale, Sydney, AUSTRALIA
TOTAL POSTS: 5731
Reply | QUOTE
Re: "Piggy Back" ECU


Just finished trip to Brisbane.
Great performance for overtaking and hills and economy is great when cruising ...
8.7 Ltr/100km (55 Ltr @ 630km) refuel at Grafton emoticon

---
Kev X450(c) T30 Guru
03 Titanium Ti T30 Series 1 **MODIFIED**
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17/Dec/2008, 11:08 am Link to this post Send Email PM   Send Private Message Blog
 
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Date Registered: 10-2006
Location: Mona Vale, Sydney, AUSTRALIA
TOTAL POSTS: 5731
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Re: "Piggy Back" ECU


Interesting thing happened on the recent O'Rielly's trip with the 4WD...

I had refitted my 4WD display and while cruising on the open road in 4WD Auto mode (it was raining) @ around 90kph I got about 15% (3 bars) torque display to the rear wheels.
But when I pressed the 2WD button the display went away emoticon
Sometimes the display went off by itself and always came back on when I re-engaged 4WD Auto mode.

Before the piggy-back was fitted I never got any indication after 80kph so now I am wondering if there is any interference between the piggy-back and how it "fools" the Nissan ECU to cause this activation of the 4WD solenoid.

When I get back to Sydney I will be chasing Spiro at Autotech to get some ideas on the wiring mods done for the piggy-back so I can get some technical advice from Taylor as this might be how Jalal fried his rear transfer case and might still be causing some ill-effects on his new one and mine.

Stay tuned in about 3 weeks ... emoticon

---
Kev X450(c) T30 Guru
03 Titanium Ti T30 Series 1 **MODIFIED**
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30/Dec/2008, 7:16 am Link to this post Send Email PM   Send Private Message Blog
 
jalalski Profile
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Date Registered: 02-2004
Location: SUTHERLAND, SYDNEY
TOTAL POSTS: 29094
Reply | QUOTE
Re: "Piggy Back" ECU


Kev,

I don't use AUTO mode only when it rains and by doing so, I would expect the rear wheels to get some torque, so am not sure what your concern is if the display is not showing any activity of the rear wheels when 2WD mode is selected.

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30/Dec/2008, 7:41 am Link to this post Send Private Message MSN Blog
 
Revhead Kev Profile
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Date Registered: 10-2006
Location: Mona Vale, Sydney, AUSTRALIA
TOTAL POSTS: 5731
Reply | QUOTE
Re: "Piggy Back" ECU


Hi Jalal,

Taylor mentioned elsewhere in a thread about an override for the 4WD solenoid to have full 4WD at over 80kph, that our rear transfer was not designed for that type of work and damage could occur if it was used like that for any length of time.

So I was thinking that if we now have some interference and when in Auto for wet weather then we might be putting more load on our rear transfer than it was designed for and hence causing possible premature failure...the length of time related to how often we drive over 80kph in Auto mode.

---
Kev X450(c) T30 Guru
03 Titanium Ti T30 Series 1 **MODIFIED**
My Blog
My CarPC Worklog
30/Dec/2008, 7:45 am Link to this post Send Email PM   Send Private Message Blog
 


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