Simons GU TD42

Hey guys

thought id start my build thread since the build has officially started.

This is the day i picked her up, 02 TD42T manual 214k on the clock.
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was obviously a family bus previously but has a few minor things done
-Dual batteries
-roof mount LCD (not really useful for me atm)
-narva driving lights
-tjm winch bar
- 2 inch coils (unsure of shocks)
had some hideous wiring so that was the first project, took most of the first weekend to sort out the fire hazard under the dash.

Now to the build. tonight i started my power/reliability mods

The list includes
-IAT and EGT sensors Running off a single Auber digital gauge
-Top mount intercooler (200x380) dunno what the factory nissans ones were but this one was free and will be an easy to fit.
-IC fan
-Port and polish the exhaust manifold. just mild to increase boost response.
-3 inch exhaust

All of this with the aim to increase power, torque and responsiveness.

first up the IAT sensor.
(excuse the crap phone photos)
Using a k type thermocouple with a 1/8'' NPT gland.

Drilling and tapping the intake manifold.
Attachment 43962
i chose this point coz its close to the inlet of the manifold and has meat (the bolt hole was for a loom clamp)

Fit the gland.
Attachment 43963
Fit the probe and gland nut and admire your handy work while you finish your beer.
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ill try keep this thread up to date.

next up is Exhaust manifold, egt probe and port polish.

Nice work, keep the thread going.

very nice you seem to know your way around an engine.
Good pick up on the wagon too

I'm interested to know how you have wired up the two sensor to the one Auber guage? I have Auber gauges and got a air temp sensor, with the same idea to run it switched with my water temp probe.

Thanks fellas yeah love patrol so far, dream come true.

As for the sensors k type thermocouples, for the most part, have a range of 0-1000c So more than suitable for egt and iat.

The wiring is simple. Common negative for both sensors straight to the gauge. Then the positives from each gauge, Through a switch. (In my case a 2 position 3 pole rocker)

The more sensors you have the more positions you need on the switch.

There is one downside to external switching, any preset alarm values will remain so you cant have seperate alarm values for each sensor. (May be an issue if u want alarms for water temp and IAT)

That's pretty much how I thought it would work and planned to do mine. Wasn't sure if the settings would need adjusting in the gauge, I couldn't see why but hadn't looked to far into it myself. Still need to get an intercooler, then I might go pre and post cooler as well as water temp.

Pre and post would be excellent for determining cooler efficiency.

As long as you use the same sensor type youll be sweet.
Just remember use a good quality switch as any excessive resistence will give inaccurate readings. If you plan on running more than 3 sensors consider a rotary switch.

Update:

Ive been plodding along over the past few days, this is what ive achieved;

tapped the bleed hole in the thermostat housing to fit a water temp sender.
These gauges are highly accurate an reliable, only down side is the thickness of capillary.
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Turbo and exhaust mani came off and i started the work on it.
Enlarged the ports slightly and smoothed off the casting, didnt want to go overboard and risk durability.

The casting on cylinders 1,2 and 3 was reasonable and only needed minimal work. mainly in smoothing the lumps on the corners.
4, 5 and 6 needed more work, the corners were irregular and one point was a good 1.5mm smaller than the port on the head.
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Here you can see the lumps, i didnt get any before photos but they where very intrusive and i believe, restrictive.
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Now i have to finish off the manifold (egt sensor) and remount it.

Hey gents (and ladies)

Everything is back together (for now)
in typical nissan style, first turn start.
There is a boost leak somewhere which i will admit sounds pretty insane.

ive finished the egt and iat sensors and installed the gauge.
Attachment 44389
Havnt been for a run yet but at hot idle im getting 100ish egt and 40ish iat.
im not overly pleased with gauge mounting atm, i just wanted to get the sucker mounted.
will have to do some trimming and stuff to get it sitting flush.

the other addition....
Attachment 44390
very pleased with this one.
bought it s/h off another forum member.
has onroad and offroad maps, dvd, ipod support, usb input and a reversing camera (yet to be mounted).

please excuse the horrid photos, im not real keen on taking the slr into the shed.

still to come is boost and oil pressure gauges. maybe next week.

then its time for more boost and sort the intercooler :)

4x4 concepts sell left and right hand pillar pods if that's of any use to you