Saturday, May 31, 2014 at 16:40
I put an exahsut and chip on the 79n series 3 years ago and haven't been disappointed. Below is the write up from my blog regarding the ute build;
Building the dream off-roader
May 2011; I have just had the performance modifications made to the ute. A 3.5 inch Taipan exhaust was fitted together with a chip and an EGT gauge. The fitment of the exhaust was not without its difficulties due to the stretch and the confining nature of the big rear tank but it was all made to fit in the end. The overall change has been absolutely incredible. It’s gone from Moose to Gazelle. It freakin FLIES! I have had it tuned specifically to assist with the heavy weight of the vehicle and towing. The work was undertaken at Turbo engineering in Thomastown. They have used their own chip which is a complete tuning system as opposed to a fuel rail or fuel pulse module. Ray spends some 4 hours on the dyno with each fitment adjusting both fuel and boost to ensure all the planets align with the additions and to ensure that things can’t be over-fueled (meaning more heat etc). Like most surgeons he has a somewhat paternalistic bedside manner but don’t let that put you off. He knows his stuff.
After the modifications, the immediately noticeable differences are;
-Wholly more responsive – It’s like driving a fully tuned petrol V8 (I kid you not, there is that much difference!)
-No flat spot when accelerating from standing start. Torque band is a lot wider and flatter . The vehicle just accelerates cleanly and powerfully.
-Much more acceleration on the highway. At 80 kph in 5th gear you can put the foot down and she climbs effortlessly upwards. Towing is going to be a dream as will dragging heavy loads up bloody high sand hills.
-It sounds a whole lot meaner at the back end with the 3 inch system and sports muffler (and this is important according to the crown prince!)
If this thing is tuned down, I’d be frightened to know what can be achieved with it bedded down and tuned right up. Quite simply these are the best mods I have ever made to a vehicle. If you were thinking of spending the dollars on this type of mod, do it but do your research and go to a recognised diesel expert. IMHO a simple plug and play fuel module is not what you want in your $70K, state of the art V8 diesel ute.
Throughout the first weeks of July, the new engine set-up has had a good 7000 km work out around some of our iconic outback tracks. The vehicle was fully loaded during this trip but not towing. The observations above stand. The vehicle accelerates like a whole different animal. On a long sharp gradient on the freeway just north of
Melbourne, I used to be pulling down to 3rd to try and get up the thing. Speed was dropping below 80 kph. With the re-tuning, I was easily able to maintain 100-110 kph in 5th and only changed to 4th to drop a few degrees off the EGT gauge.
Fuel Economy has not been adversely affected and has remained more or less the same in both city and country driving. In the slower going on outback roads (average 60-80 kph with a fair bit of 4x4 for damp and slippery sections) the economy has actually improved by nearly one kilometre per Litre. This is a real bonus considering the abysmal economy figures in the first place. Where the mods come into their own is the solid increase in power when in a 4x4 situation. There’s no more having to put the boot into her to keep the momentum up in soft sand or mud. Easy manipulation of the accelerator ensures smooth, constant power in even a sudden, unexpected situation and that’s bloody great.
Dyno results; At 100 kph there is a torque increase of 150Nm (586 to 734 Nm) and a power increase of 21 Kw (80 to 101 kw). Average across the range of between 20-25% increase in power and torque. Original dyno showed that the vehicle was under fuelled and had very low boost settings. These increases are achieved with 33" tyres fitted.
AnswerID:
533507
Follow Up By: AlbyNSW - Saturday, May 31, 2014 at 18:02
Saturday, May 31, 2014 at 18:02
Mick how many k's have you put on her now and I have read reports of some experiencing clutch issues after chipping, when have you had any problems there?
FollowupID:
816884
Follow Up By: Ozrover - Saturday, May 31, 2014 at 18:30
Saturday, May 31, 2014 at 18:30
Bugger you Mick O!
Now I want to chip & pipe my 78 series Military Dual Cab.
How much was the Taipan exhaust? I've looked around a bit & they seem to know what their doing.
I had an e-mail from a mate in
Geelong & he reckons that he can get 200 RWKW & 1000nm of torque out of it by upgrading the turbo, pipe, injectors etc... for just under $10 000.
FollowupID:
816886
Follow Up By: Mick O - Saturday, May 31, 2014 at 23:43
Saturday, May 31, 2014 at 23:43
Alby, I'm at 65K or 45K since putting the chip in. No clutch issues. Did a front bearing retainer in the transfer case but I believe that was due to the bearing retainer cir-clip missing.
Jeff, that's some serious coin. Perhaps too much. I was less than half that for exhaust, chip and all the labour involved. Have made no move on the injectors as they are pricey to play with at better than a grand a pop. As I've said, I've had it tuned for a wide flat torque band to assist with towing. There's a lot more in it if I wanted to tweak it but I'm a firm believer in going for what suits you needs.
Members
John Vic and Glenn own identical vehilces and have driven mine. Each would be able to vouch for the difference in performance and power.
Cheers Mick
FollowupID:
816903
Follow Up By: Ozrover - Sunday, Jun 01, 2014 at 09:06
Sunday, Jun 01, 2014 at 09:06
Mick O,
Not really considering going down the larger Turbo route, but the Taipan exhaust looks good.
FollowupID:
816909
Follow Up By: Bob Y. - Qld - Sunday, Jun 01, 2014 at 10:20
Sunday, Jun 01, 2014 at 10:20
Jeff,
The Redback line of exhausts are pretty good too.
Maybe not as "refined" as the Taipan is, but they offer a choice of 3 mufflers (none:-)))' sports or 0.5 acre size), and all sections are available as spare parts.
I've got the latter size, not by choice, and it's not loud. :-(
Bob
FollowupID:
816914
Follow Up By: Ozrover - Sunday, Jun 01, 2014 at 10:26
Sunday, Jun 01, 2014 at 10:26
Thanks Bob, I'll have a look.
FollowupID:
816915