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View Full Version : Wanted 4.2 Diesel turbo, genuine, new or recond



macca
9th January 2015, 09:24 AM
Had a service of the diesel yesterday.

It is a totally different vehicle. HP +22% at rear wheel, Torque +18%, Boost from 9ish to 13psi an increase of 44% Their gauges mine read a little different (9.6 to 14.7). EGT about 100 degrees lower!

I do have a small problem in that the turbo is slow to start building pressure. It runs at 2 psi when it should be 4. It builds up with revs fine, just no bottom end.

So I am looking for a reconditioned genuine (exchange?) or new genuine turbo for the 4.2 intercooled.

In no hurry but would like to get it done. Been advised to keep away from eBay / Chinese.

Any help would be appreciated, I have looked at a few sites, including Patrol-A-Part, but they don't have them for the 4.2.

Ta Iain Mac

Stropp
9th January 2015, 01:01 PM
mate do yourself a favour and fork out for a ufi 16g large, well worth the extra imho

macca
10th January 2015, 06:54 AM
Mate can you explain the benefits?

My turbo puts out all I need at top end revs, but is "leaking or has a By-Pass issue" at low revs.

A boost control has been fitted to optimise air / fuel / power.

The thing is tuned for engine life and fuel economy, they said anything over 125 RWBHP is going to create a significant difference in fuel usage.

More boost at lower revs is really what I'm after, cheers Stropp

nissannewby
18th January 2015, 10:21 PM
Macca when are you seeing max boost (at what rpm)?

Im with stropp if funds permit then an upgrade would be recommended.

macca
20th January 2015, 01:18 PM
Macca when are you seeing max boost (at what rpm)?

Im with stropp if funds permit then an upgrade would be recommended.

Max boost is about 2100 rpm - 2400 rpm. That's on my boost gauge.

macca
3rd March 2015, 03:50 PM
Talking to an engine tuner who worked on my car about the turbo showing signs of wear, it needs a recond and I needed some advice on what to do.

Specifically what the hi-flow version of the standard turbo is like on these cars. He said I will lose bottom end but gain some mid to top and it will be very frustrating for me.

That surprised me, not what I thought it was all about at all. His advice is to leave it stock get good all round performance and longevity.

Got to admit that has a nice sound about it! So I will get the one on the car recond to OEM spec.