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nissan patrol
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Hi all

Have rung around a few places to enquire about running my 1990 GQ 4.2D ute with a supercharger set up. I am aware that the turbo option is the most common way to go atm. Just wondering has anyone ever or is running a SC on their GQ at the moment?
Wanting to tap into the low end revs and torque for future 4wding and towing.
The twin screw SC has the latest and best technology according to a lot of forums and websites.
Need a bit of advice.

Thanks WOLFY
 

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Got one on a TD42 in a GQ. Running a sprintex at 11psi over driven with a GU intercooler, custom made Aluminum radiator twin AU falcon thermo's. Have had lots of issues with exploding pulleys and even stripped the end of a crank. If you want to go this path im quite happy to help explain all the issues and how i over came them. Power down low is fantastic, fuel economy is very good.

PM if you like
 

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Autos are Superior
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Go and search on outerlimits. One bloke there (I think hes here too somewhere)had a turbo GQ and another GQ with supercharger... side by side comparison he said go with turbo everytime over the blower.
 

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if you want low end torque go with a SC if you want to run a higher boost go with a Turbo, heat has been my biggest headache as a SC supplies you with a nice constant flow of really hot air. After putting a pyro on i was shocked at the EGT's it was producing at 5PSI 700-800c on a hill, now with a higher boost and less fuel i have pulled that back down to 500c on the same hill.
 

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@ Ghost.. have you done or would you be willing to do a build up thread of your experiences with supercharging the TD's? would be an interesting read... this topic comes up fairly regularly and it would be great to have someones first hand experience.
Tod-
 

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nissan patrol
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Have had lots of issues with exploding pulleys and even stripped the end of a crank.
I think I've see electric SC's in a mag somewhere, they look like an electric leaf blower. You wouldn't need to worry about belts and pulleys that way, and you could easily adjust boost by changing the SC supply voltage.
 

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yes 4CE_FED will start writing it up in the next few days, might put it under the car buildup mods section as it will be a fairly long read and yes pics as well :)
 

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I think I've see electric SC's in a mag somewhere, they look like an electric leaf blower. You wouldn't need to worry about belts and pulleys that way, and you could easily adjust boost by changing the SC supply voltage.
electric superchargers are a joke.
It takes about 50 horsepower to drive a blower at full noise.
Have you ever seen a 50 horsepower 12v electric motor? A decent winch motor is about 7 horsepower. So think of something about 7 times that size, with power cables 7 times the size, and a matching alternator. And the drive belt to run that gigantic alternator would have to be the size of a supercharger belt.
 

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electric superchargers are a joke.
It takes about 50 horsepower to drive a blower at full noise.
Have you ever seen a 50 horsepower 12v electric motor? A decent winch motor is about 7 horsepower. So think of something about 7 times that size, with power cables 7 times the size, and a matching alternator. And the drive belt to run that gigantic alternator would have to be the size of a supercharger belt.
I don't think it would be that extreme. An electric SC doesn't have the moving mechanical parts like a regular supercharger, like I said it's basically a leaf blower, nothing more than just a fan. I guess it's more like an electric powered turbo than a SC.
 

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It takes
a certain amount of energy
to compress a certain volume of air
to a certain pressure.

Even given 100% efficiency it's not possible to make an electric supercharger suitable for 7 or 8 psi of boost for a 4 litre engine at 4000 rpm with less than a few hundred amps.
 

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Even given 100% efficiency it's not possible to make an electric supercharger suitable for 7 or 8 psi of boost for a 4 litre engine at 4000 rpm with less than a few hundred amps.
Yeah like I said I saw it in a mag a while ago. It could have been one of them 4-cylinder s#!tbox mags. They'd probably work on a QG16, but not a TD42. Not sure I'd hold 4000rpm for too long on a 20+ year old diesel either.
 

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patrol maverick you probably saw it in one of the 4wdaction mags as i remember seeing one in there.

The problem with electric superchargers is that they are setup to only boost at wide open throttle sorta pointless for a diesel but they can be set to come in lower for a diesel but it still requires fairly high revs (your pedal still needs to be close to the floor)), The reason is that if they ran all the time that they would cook the battery. The other thing is that they only claim 15hp improvements.

If you want something that boosts just off idle have you considered a twin turbo setup? this would give you minimal lag, better than current fuel economy (as opposed to increased economy with a supercharger) and you will also be able to pull more than 8 pounds in the higher revs.

So far there have been 2 tt patrols on this forum that i know of, one kiwi bloke who loved it and another guy with a brother/mate (cant remember) who set up a patrol using second hand suby turbos and looked extremely nice.

Just some food for thought.

Cheers,
Nic
 

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Autos are Superior
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nic92gq said:
saw it in one of the 4wdaction mags as i remember seeing one in there.
thats where the problem lies...
 

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Don't need twins for minimal lag. Especially if you aren't going for massive power. Considering the inertia of hauling the bulk of a Nissan patrol around it's as good as instant.
Twin turbos do have a certain bling factor and they are better but will it make a measurable difference in getting 2+ tons moving?

For many the means is more important than the outcome. That's why there are so many poser cars out there. Nothing wrong with that as long as you're not kidding yourself.
 

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nissan patrol gu 2003 4.2s
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HELP Please

Arvo all
I have a gu Patrol with a td42 Super charger, I am in desperate need of some were to service and tune the engine i have already forked out good cash for a crap job and just need some reccomendations please.
Also any advise on were to go to get my AC all re wired and hooked up with out taking a third morgage.

Please PM or add posts (new to here so i get lost a little bit)

Thanks Rod
 

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GQ Dual Cab. TD42Ti with fruit.
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G'day Rod.

Contact Northside 4x4 at Caboolture mate. The guys know the TD42 inside out, and are turbo specialists. I reckon they will be able to help you with your blower as well. Give Jamie a call and see if they can help you.
 
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