Isuzu Trooper Owners Club UK™

jacksdad1963 · Posted: Sat Feb 21, 2015 15:33 Post subject: Tunit tuning box for 3.0 ?

Has anyone fitted one of these:
http://www.tunit.co.uk/vehicles/view/model/1086#your-tunit-header
the options shown are £375 or £425 plus vat, with 1 or 2 year engine warranty for the 2 units Confused

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1999 3.0 TD Duty SWB
3" Body lift, 3" suspension lift, diff dropped, balljoints flipped, extended panhard, Tree sliders, Superwinch, +2" Pro Comps, 33" Mudders: Nearly finished!

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Red Robbo · Posted: Sat Feb 21, 2015 18:04 Post subject:

This was tackled years ago by "Chris Beasley" have a search on here....IIRC the results wern't too special Sad

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Khotso...........

jacksdad1963 · Posted: Sat Feb 21, 2015 19:00 Post subject:

Cheers Ted, I'll have a mooch Wink

I fitted a Turbotune (same thing) to my Renault Master 2.5 van: it did what it said!
It had a 3 position toggle switch, standard plus a bit, economy then max bhp and torque, made a massive difference, I could floor it in 3rd and the torque was amazing Very Happy

All the other firms don't list the 4JX1, but the salesman at Tunit (obviously) said that their unit works.
I'm waiting for confirmation from 'head office' as to their claims, but must admit I'm very tempted, they also offer a dyno 'before & after' test (at my cost!)
IF I go for it I'll glady report back with my findings Wink

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1999 3.0 TD Duty SWB
3" Body lift, 3" suspension lift, diff dropped, balljoints flipped, extended panhard, Tree sliders, Superwinch, +2" Pro Comps, 33" Mudders: Nearly finished!

jacksdad1963 · Posted: Sat Feb 21, 2015 21:29 Post subject:

Found a few posts from Chris B and they all were impressed with it!
I'm waiting for confirmation that the unit listed will work on my engine, then I'll be ordering one! Very Happy

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1999 3.0 TD Duty SWB
3" Body lift, 3" suspension lift, diff dropped, balljoints flipped, extended panhard, Tree sliders, Superwinch, +2" Pro Comps, 33" Mudders: Nearly finished!

jacksdad1963 · Posted: Sat Feb 21, 2015 21:39 Post subject:

Found a few more now Ted!
Chris Beezley...had a few problems, seems like the power output was great but 'he' had problems with mid-range misfiring.
These posts were back in 2007, so I'm hoping that any glitches have been rectified: Once again I'll see what the tech guy says and take it from there Wink

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1999 3.0 TD Duty SWB
3" Body lift, 3" suspension lift, diff dropped, balljoints flipped, extended panhard, Tree sliders, Superwinch, +2" Pro Comps, 33" Mudders: Nearly finished!

kennymac · Posted: Sat Feb 21, 2015 22:12 Post subject:

Don't know how relevant it is, but, a lot of the Navara guy's swear by the DTE box, as opposed to a lot of the alternatives. The reason being that most of the other options only increase the fuelling at the rail, and eventually the ECU realises this and compensates - sometimes going in to limp home mode. Whereas the DTE box connects to the injectors and reprograms from there. Haven't tried either option, so can't give an opinion, just postin for information sake. Can't find Trooper 4JX1 on DTE site, but they do list D-Max 3.0 163ps, but (I think Confused

) that'll be a different engine.
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If all else fails just nod, smile and say "Yes Dear"

TrooperJack · ** Joined: 22 Jan 2015 Posts: 54 Location: Brighton

Interesting subject, I will look forward to your findings!
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Trooper Citation 3.0, 33" BF muddies, 3" suspension lift

jacksdad1963 · Posted: Tue Feb 24, 2015 11:02 Post subject:

I'm ordering one today, will be fitted and tested at the weekend: We'll see if it feels like 198 Bhp and 278 lb torque! Very Happy

(Standard is 160 & 247...)
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1999 3.0 TD Duty SWB
3" Body lift, 3" suspension lift, diff dropped, balljoints flipped, extended panhard, Tree sliders, Superwinch, +2" Pro Comps, 33" Mudders: Nearly finished!

TrooperJack · ** Joined: 22 Jan 2015 Posts: 54 Location: Brighton

Must be like Christmas all over again! Laughing

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Trooper Citation 3.0, 33" BF muddies, 3" suspension lift

gary820 · Posted: Tue Feb 24, 2015 18:19 Post subject:

Had issues when had a tunit box on my 3.0, poor running issues, misfires etc. This was about 3 years ish ago tho
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landcruiser 80 series 4.5, 35's/33's for road, 2inch lift, discreet winch, sliders/armour, factory lockers, stainless side exit +++++

jacksdad1963 · Posted: Tue Feb 24, 2015 19:19 Post subject:

The point there is that they've been selling them for a while Wink

If there were problems its hoped they have been rectified though! I asked the sales geezer if he could double check, as I'd heard about problems.
He rang me back yesterday, said the company director has sold lots of the 3.0 units in Australia and said they work very well, so I decided to give it a try.
Tunit have a rolling road not too far from me, I wonder if they'd do a comparison test, before & after type of thing? Laughing

My Trooper has got a Powerflow exhaust, with the Cat/filter removed, and the egr and warm up junk all removed, would be very interesting to see some dyno numbers...
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1999 3.0 TD Duty SWB
3" Body lift, 3" suspension lift, diff dropped, balljoints flipped, extended panhard, Tree sliders, Superwinch, +2" Pro Comps, 33" Mudders: Nearly finished!

gary820 · Posted: Thu Feb 26, 2015 10:22 Post subject:

Yeah should be all ironed out nowadays. It's why said about 3 years ago. Hope you get good results, no doubting they make a difference, with all the other stuff you've done it'll produce good power
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landcruiser 80 series 4.5, 35's/33's for road, 2inch lift, discreet winch, sliders/armour, factory lockers, stainless side exit +++++

jacksdad1963 · Posted: Thu Feb 26, 2015 11:55 Post subject:

Totally agree Gary, I'm glad you mentioned the problems you had, the tunit man told me that they have improved the units since the first ones Very Happy

He also said the wiring is now easier to install. Have you still got yours? I bet you could get it updated.
I've ordered it this morning, so I'll have an update once I've tried it Very Happy

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1999 3.0 TD Duty SWB
3" Body lift, 3" suspension lift, diff dropped, balljoints flipped, extended panhard, Tree sliders, Superwinch, +2" Pro Comps, 33" Mudders: Nearly finished!

jacksdad1963 · Posted: Thu Feb 26, 2015 14:20 Post subject:

Now ordered: went for the best one, the 'Tunit Advantage II with Red Board Technology'.
This can be returned and reprogrammed should I sell the Trooper, so if I ever buy a V8 4.5 Amazon I can stick it on that! Shocked

The Tunit rolling road is in Chorley which isn't too far from me, so I'll get some before & after figures next...
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1999 3.0 TD Duty SWB
3" Body lift, 3" suspension lift, diff dropped, balljoints flipped, extended panhard, Tree sliders, Superwinch, +2" Pro Comps, 33" Mudders: Nearly finished!

Rhanagar · Posted: Thu Feb 26, 2015 15:41 Post subject:

Interesting .. Chorley is 15 mins away from me.
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1990 Isuzu Bighorn LWB Mk.I 2.8TD Manual Lotus Edition
1994 Isuzu Bighorn LWB Mk.II 3.1TD Auto Lotus Edition

Deceased
1994 Isuzu Bighorn LWB Mk.II 3.1TD Auto LS