Morning all!
Well, finally I can report on the powerup situation. Please find below the link to the site where the report is:
http://www.gqpatrol.com/td6/dynoreport.jpg
My thanks to Truckster.
Previously, the patrol with 4000 k's the clock has been averaging 7.75 k/l. I was not towing anything and the car was empty and pushing 285/75/16 tyres. The average above incorporated highway and city driving.
On the weekend, I did the run out to Millmeran which included the run up the
Toowoomba range, city driving up until jumping on the freeway and the run obviously out to Millmeran. I overtook 3 roadtrains, at an average speed of 135k/h. My average speed over the whole journey was 108 k/h. I had 2 other guys with me weighing in at an extra 180kg. As
well as that, I was carrying 8 rolls of 2.5mm twin and earth cable, 8 rolls 1mm cable, 4 electric drills, boxes of powerpoints, switches, drills, ladders and we estimated the weight in the rear of the car around 350kg. I travelled at both night and through the warmest part of the day and took the same route to and from. Lastly, I was not easy on the accelerater so I would get a worse case scenario.
E.G.T's up the range rose quite quickly and settled around 600 in 4th gear at around 80 k/h. I did cruise at that speed and could have gone quicker but the E.G.T's rose alarmingly when I did so. Engine temp remained at 1/4 the whole way. The turbo care of the boost gauge up the range sat nicely on 10-11psi. When into it from the line, the turbo will boost at 12psi.
I did 585 kilometers and used 69 litres of fuel. I obtained a fuel consumption of 8.47k's to the litre or 11.8/100. Fuel economy improved vastly. I was extremely surprised to say the least. Considering I was carrying a load, not easy on the loud pedal, and did the
toowoomba range both ways, I was expecting to drop at least 1k per litre from original figures.
Right, now for the improvements themselves.
Brisbane Tuning and Turbos perfomed the mods. A 3 inch mandrel bent exhaust system was fitted from the turbo. The E.G.R was entirely disconnected (sorry greenies). The fuel pump was tickled to counterbalance the increase in boost to 12psi, and dynoed pre and post. Further a boost adjustor was fitted. Lastly, my vdo boost and pyro gauges were fitted. The entire process takes 2 days, and costs $1,900.00. Holy crap you might say, but for a stage 2 powerup from Motsons in
Brisbane it will cost around $3,000. However, that does include machining the turbo housing, fitting larger impellers and fitting an aneroid to the fuel pump. For interests sake, I will head out there today and obtain some figures for interested parties.
Finally, the results at the rear
wheels. Torque rose from 636ftLb @ 64kph to 950ftLb @ 53kph. Power rose from 105hp @ 86kph to 154hp @ 82 kph. In my own opinion, this is very very good and the turbo now sings like a bird. The turbo basically spools from boost and instead of waiting for 2000rpm before the power increases, it starts at 1000. The motor although running higher boost, will still crawl up hills and rocks at around 200rpm which is off my taco.
I'm heading to
Tamworth this weekend, which will take me on a 1000 k journey return. I'll be sure to report back on the next run just to confirm these figures weren't a fluke!
Hope this helps out a few people and thanks for taking an interest. Happy to answer any other questions you may have.
Cheers
Chris.