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TooTall



Member Since: 10 Jul 2012
Location: Fens
Posts: 504
United Kingdom 2004 Defender 90 Td5 HT Tonga Green
TD5 PSI Motorsport tuning box?
Hi
Can anyone give me a heads-up on the pro/cons of fitting a secondhand PSI Motorsport tuning box (part no IPROTD5ECU) to my standard 2004 TD5 90 H/T? It comes with a dedicated Defender wiring loom & will work out at £140 fitted from a local reliable source Rolling Eyes
I appreciate that Gary, Ian/Ada, Big Steve & Chris etc offer a bespoke diagnostic service so wonder it this is worth the money as a generic ECU override unit...
TIA Very Happy
M. "Ease your worries, Clear-up your woes,
Go into your garage & put stuff into rows."
Post #242967 12th Jun 2013 1:25pm
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Porny
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Member Since: 31 Aug 2009
Location: Sutton Coldfield - West Midlands
Posts: 809
 
Re: TD5 PSI Motorsport tuning box?
TooTall wrote:
Hi
Can anyone give me a heads-up on the pro/cons of fitting a secondhand PSI Motorsport tuning box (part no IPROTD5ECU) to my standard 2004 TD5 90 H/T? It comes with a dedicated Defender wiring loom & will work out at £140 fitted from a local reliable source Rolling Eyes
I appreciate that Gary, Ian/Ada, Big Steve & Chris etc offer a bespoke diagnostic service so wonder it this is worth the money as a generic ECU override unit...
TIA Very Happy
M.


A tuning box simply acts as a jumper..... it extends the injection pulse width and puts fuel in at the wrong point of the stroke which can lead to problems including bore wash.. Some more modern units are a fraction more intelligent - but not much. You might make a fraction more power, but not in an efficient manor.

They are, and always will be a bodge method of tuning in my opinion.

And they are the reason I have a td5 at the moment with FUBAR'D injectors..... Admittedly the customer had two units plugged and turned to max.


You pay your money and take your choice.


Ian IRB
The home of the first modified Keswick Green 90 - and the first 2.4 Puma through both the 200bhp and 550Nm barriers.

www.IRBdevelopments.com

www.facebook.com/irbdevelopments

www.integrated316.com

www.facebook.com/integrated316
Post #242970 12th Jun 2013 1:46pm
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TooTall



Member Since: 10 Jul 2012
Location: Fens
Posts: 504
United Kingdom 2004 Defender 90 Td5 HT Tonga Green
^ Bow down ^
Thx for the informed response Ian/Ada; it's what I anticipated really Big Cry I guess my hard earned would be better invested in some bespoke fettling rather than a plug-in bodge.
Regards M. "Ease your worries, Clear-up your woes,
Go into your garage & put stuff into rows."
Post #242997 12th Jun 2013 4:08pm
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yobbie



Member Since: 15 Nov 2010
Location: Isle of Wight
Posts: 713
United Kingdom 1999 Defender 90 Td5 Heritage LE Bronze Green
I use to have a tuning box on mine until Ian tuned it, when he took the box apart it just had a resistor in it, not a lot more. The difference with a remap is the truck is a lot more drivable rather than being just a peak of power. Save your cash and have it done properly.
Post #243019 12th Jun 2013 5:40pm
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