GU exhaust heat shield

$700 towards a chip would be very nice.

Thanks mate

I will investigate this very closely indeed,
Thanks Dave

Will be giving a ring tomorrow,
Thanks John

If you remember the following it would help me greatly:
Cost
Supplier
Professional install or home done jobbie?

appreciated heaps

Thanks for the reply Pezza,
The original exhaust is just OK at the moment. the middle muffler has a decent ding in the middle of it and the lower part of the heat guards are pretty poxy with most of the pipe under the heat shield covered in scale. There is still some of wall thickness left but its annoying me. I am also planning to get a chip but if I am going to get higher EGTs in the pipe, then it would only accelerate the corrosion there at the moment. I am quite taken to the the idea of getting the Beaudesert exhausts 2.75' dump pipe and get the local exhuast mob to fabricate the rest in probably 2.75' mild steel.

Did you have any EGT gauges fitted when you had the motsons put in. I have heard they raise the boost to 14psi in conjuction with the fueling increase to match but when I asked Motsons themselves over the phone about EGTs the salesman changed the topic to say the warranty with the chip only covered the chip and not the motor. To skirt around the issue of EGTs has made me wary of Motsons so my plan was to go to a DP Chip and have it tuned to match the exhaust and other mods (already blocked EGR, possibly boost controller depending on cost, fitment ect.). If you know what EGTs the Motsons chip runs it would be appreciated.

Ben

Sorry mate, can't help you with the EGT's, tell the truth, I wasn't real concerned with it, There are a few thousand of these chips fitted, wasn't a problem with them so I wasn't going to worry myself with it.
David ( Grungle) used his proffessional skills to wire the module in and we set the boost to 14.5 psi and have been happy as Larry since, motor has 270,000 k's on it.
Where'd you find the EGR and was there much difference when you blocked it off, I didn't think the 2.8's had them, I was obviously wrong :-)

Cheers
Pezza

Sorry for being a few days late,
The 2.8 GU EGR system is begins at the very rear of the exhaust manifold about 4 inches off the firewall on the passenger side. The EGR pipe is silvery coloured about an inch in diameter and runs up the block and to the top of the intake mainfold just below where the hose from the intercooler joins. At the joint between the EGR pipe and intake manifold there is a flying saucer looking thing that is part of the pneumatic control from the ECU. The valve is located on the pipe so all you do is loosen the bolts holding the valve to the intake manifold and drop in your plate (mines 4mm thick mild steel) and retighten the bolts so the Inspectors cant tell any different. The exact design can be found on a french patrol site I located through patrol4x4 forum. It looks like a very fat 'T' shape.

Difference: Turbo on boost at 1700 rpm compared to previous 2000, no smoke under acceleration, 0.5l/100k better fuel consumption, about 1mm cooler on temp gauge when cruising and the engine oil is clear to around 3000km (barely 1000km before). The fool who dreamt up dumping hot sooty exhaust back into the combustion process needs to be removed from the gene pool immediately. Another 'green' invasion on the motoring scene that has again proved totally useless.

Ben

Good stuff, pipe located, plate fabricated, job done, thanks mate.

Cheers
Pezza

Righto, this mod just got put right up the list. Boost gauge was going to go in a some time in the future but I think the order now will be; exhaust($700-$1000), boost controller/gauge ($400ish), chip/EGT gauge ($1600).
Should wake the little bugger up a bit me thinks and all hopefully in by christmas. I originally was going to trade it in on a 2007 ST-L3.0 CRD but bought a runout 06 Hilux SR 3.0 4wd TD for work instead, got cold feet over 3.0l grenading history. Some of the moola left over is going on the old truck.