Turbo Upgrades for the GUIV TD42Ti

OK Guys, I am in the market for a Turbo for the GU and keen to hear what everyone thinks will work for me.

So I'm keen to find a little more power. Control the heat and EGTs and give me good power for towing the camper.

Options I am seriously considering include

• Cross Country Ultimate intercooler
• Mamba 18g 6cm I think?
• UFI 18g 6cm I think?
• Borg Warner something???
• Swapping diff ratios to 4.3s from 3.9s ( anyone have any they want to sell?)
• Hi flow injectors
• Inline pump.

Is 18g X 6cm the right setup? I understand it will boost fairly early so good for towing.

I'm keen Not to upgrade the pump. I might need a clutch though?

Hoping to see somewhere around 140 to 160 rwkw. Currently pushing about 95rwkw

Cheers guys

Anyone??...

PM already sent for 4.3s possible off mate Daz!

I heard those BorgWarner 6758's are ideal and might be just what you're chasing old mate ;)

Oh alright then.

Very easy for the turbo mate. Borg Warner EFR6758 with T25 0.64 A/R turbine housing. Im not a fan of top mounts but that is up to you and it will do the job at your desired power levels. Dont bother with the cheap junk.

If you are going to stick with your current tyre size I would only go to 4.11 ratios. This will also make your search a lot easier as they are a dime a dozen. 4.3 ratios are hard to come by.

No such thing as "Hi Flow" injectors. The injectors will deliver what they pump puts out. I would just get yours reco or exchanged and set to standard pressures. A lift pump is also highly recommended and I will give you the same recommendation as winnie, Carter 4600 or 4601.

The clutch should be ok for your desired power levels which you may have to lower your expecatations a little. I think you will be lucky to see 130rwkw. 160 is out of the question

Hey Daz, I really don't think you will see 140kw out of your pump mate. If you're getting around 120kw then the standard clutch should be able to cope.
120kw makes a really good tow vehicle, but there will always be a little part of you that knows how much more you can get and you will probably end up doing it... Lol

I have the cross country intercooler and I do rate it as a good bit of gear and the best part is it is all in kit form and is super easy to install.
However if I had my time again I would go with a front mount cooler. It makes the job harder but I think they do a better job and you would save a bucket load of cash. (more money towards the 12mm pump)!

Quote:

---

Originally Posted by nissannewby

Anyone??...

---

Lol..... who???

Why the 'Three Musketeers' of course :-)
Don't drive down this time though, easier to fly here!
https://youtu.be/wru7XVriBdQ
Just jokes, you blokes really do know your stuff ;-)

Quote:

---

Originally Posted by nissannewby

Oh alright then.

Very easy for the turbo mate. Borg Warner EFR6758 with T25 0.64 A/R turbine housing. Im not a fan of top mounts but that is up to you and it will do the job at your desired power levels. Dont bother with the cheap junk.

If you are going to stick with your current tyre size I would only go to 4.11 ratios. This will also make your search a lot easier as they are a dime a dozen. 4.3 ratios are hard to come by.

No such thing as "Hi Flow" injectors. The injectors will deliver what they pump puts out. I would just get yours reco or exchanged and set to standard pressures. A lift pump is also highly recommended and I will give you the same recommendation as winnie, Carter 4600 or 4601.

The clutch should be ok for your desired power levels which you may have to lower your expecatations a little. I think you will be lucky to see 130rwkw. 160 is out of the question

---

Thanks Matty, some dude sent me a pm said nearlly exactly the same thing so I reckon your onto something mate.

I'm Pretty keen on the 4.3 ratios and I might have found some. The inline pump was the 4601 as you discussed in Winnie's Thread for sure.

So the hiflow injectors I thought would have an increased CC input flow and would be advantageous? I understand though if the pump is not asking for the flow then it's pointless.

My Clutch is the original clutch and has 265k on it and I assume it's at end of life but will only change it when it tells me it's knackered.

Given I am not looking for big KWs is the Mamba really that bad an idea? There is a bit of cash involved so a massive saving there is attractive. What is the BW likely to cost me? Pm if you like. Can you help me source this? Given the UFI are well regarded is this worth considering and $ for $ will it be as good as the BW?

@Winnie I'm pretty keen to stay with a Top Mount as I already have a hole in the bonnet so a bigger hole will work for me. I reckon the Fairline scoops look Sik too. But if there is big coin to save then I could be convinced that a Front mount will work and leave the scoop there for Ventilation.

@Hodge do you have a bigger Turbo on yours mate?

Quote:

---

Originally Posted by MudRunnerTD

OK Guys, I am in the market for a Turbo for the GU and keen to hear what everyone thinks will work for me.

So I'm keen to find a little more power. Control the heat and EGTs and give me good power for towing the camper.

Options I am seriously considering include

• Cross Country Ultimate intercooler
• Mamba 18g 6cm I think?
• UFI 18g 6cm I think?
• Borg Warner something???
• Swapping diff ratios to 4.3s from 3.9s ( anyone have any they want to sell?)
• Hi flow injectors
• Inline pump.

Is 18g X 6cm the right setup? I understand it will boost fairly early so good for towing.

I'm keen Not to upgrade the pump. I might need a clutch though?

Hoping to see somewhere around 140 to 160 rwkw. Currently pushing about 95rwkw

Cheers guys

---

hi Darren, i have 4.3 ratio's and they suit me well, brunswick diesels if you cant get any in victoria have lots of 4.3 as they use a 3.9 when fitting the 6.5 chev so if you dont mind paying freight they will sell you some then credit you when you send them your 3.9's
cheers stropp