NewHilux.net

Hey guys,

I recently had a reconditioned turbo out in my car as when I bought the lux the turbo was destroyed. Then that turbo blow aswell! Turns out it was a busted bearing, every one is saying it's because it was a dodgy reco, but I'd still like to make sure I'm doing everything I can to try and stop this happening to my BRAND NEW genuine toyota turbo witch I paid $3500 for.

Does anyone know how much boost the 06 3.0ltr d4d's run?

Cheers, Mitch.

160 kpa

Thanks boxhead, do you know how boost is adjusted with these variable vein turbos?

Yep like this


The stepper motor is controls by the boost ecu to move the vans open and closed to direct the exhaust onto and away from the compressor wheel
This is why you get good boost so low in the rev range. And do not require a waist gate.

I'd be checking the oil supply to the turbo. A blocked pipe? Wouldn't over boost set a fault?

boxhead55 wrote:160 kpa

wait so a d4d hilux runs 23 psi :S? mine only boosts to 12 :\ according to my scan gauge

160kpa amphoteric reading

Not actual.

This is what you will see on most scan gauges and tech stream

10 to 12 psi is the target.(actual)

I have a mechanical boost gauge and it shows 22-23psi at it's peak, relating to this topic, does anyone know why at around 2000rpm @ 10psi and consistent throttle position the boost will go from 10 to 8 then back to 10? Just keeps fluctuating around the 2k rev mark

Cheers

Egr position opening and closing.

Oh wow. That's a massive amount of egr.

If your egr is blocked or dirty the intake throttle plate will close a little or a lot depending in requirements and boost will increase via shutting the variable vans some

This allows for correct flow of egr which is measures via the map and maf sensors.

So people who say blocking the egr increases performance are clueless?

Tuflux1kd wrote:So people who say blocking the egr increases performance are clueless?

umm , I'm gonna upset a few on here by saying this , but yes .

boxhead55 wrote:Egr position opening and closing.

I have a steady pulse in my exhaust if I listen at the tail pipe, and a loud pulse on the exhaust side of the engine around the manifold/turbo area. is this caused by this egr thing or do I have a problem elsewhere. it is loud enough that I hear it in the cab when driving. I also sometimes have a loud knock at idle on cold start-up.

Whats the easiest way to find out what boost level your ute is running at?
Guessing its either fitting a boost gauge or using a Scantool/Scangauge and a smart phone yeah?

You should check the oil supply for the turbo. The pipe is easily removed from the turbo.
Remove it and check if it isn't clogged up. Also check the oil pick up in the sump. You can see this when you drain the oil and look in the hole.

Hunting that you can hear in the exhaust (sounds like cam roll, that's what I wish it is ) can sometimes be an indicator to an injector pump that's seen better days.

hey guys, I just put in scangaige2 and max boost I'm getting is around 8.8psi, seems a bit low?

Do you have a chip or tuned ECU? They alter boost readings to fool the ecu into demanding more boost.

Gipsy wrote:Do you have a chip or tuned ECU? They alter boost readings to fool the ecu into demanding more boost.

na, no chip or ecu work, 3" exhaust is only mod.