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November 7th, 2006 12:02 PM #1
Parang yun kasi ang sabi sa thread na ito. How a variable geometry turbo works
Anyone who has a Fortuner with the 3L D4D has a Variable Geometry turbo charger,the 2.5L D4D engines, afaik, also have the Variable Geometry Turbo Charger
Anyone tried 'testing' for an LSD? [lifting both rear tires, spin one, if the other spins in the same direction then it's LSD, if not it's an open diff]
Anyone care to shed some light? ThanksLast edited by OTEP; November 7th, 2006 at 12:09 PM.
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November 7th, 2006 12:25 PM #2
walang rear LSD yung local Fortuner to my knowledge. he could be referring to the locking limited-slip center diff
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November 7th, 2006 12:47 PM #3
According to Top Gear Philippines, meron daw ang LOCAL Fortuner.
Sa Toyota PH Website it's not mentioned kung meron or wala. Other Toyota websites (e.g. Malaysia, Brunei...etc.), the Torsen LSD feature is heavily marketed na meron.
So, I'll take it....with a grain of salt.
http://pinoyfortuner.14.forumer.com/...e21947f166385c
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November 7th, 2006 12:57 PM #4
i think the local Fortuner has a lockable Torsen center diff (which is effectively a limited-slip unit when unlocked), however, it does not have a limited-slip diff at the rear axle.
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November 7th, 2006 01:04 PM #5
A center diff is a device that allows a 4wd vehicle to operate on paved roads.
An axle mounted LSD is a traction aiding device for off-road use. A full locking rear diff is offered in some markets as well.
Local units have a Torsen LSD for the center diff. I'm not sure about the rear axle. I thought it was open all along.
How about the VGT?
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November 7th, 2006 03:27 PM #7VGT means "Variable Geometry Turbocharger" means that the blade of the turbocharger can be adjusted electronically based on the parameters of the unit like speed and acceleration.
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November 7th, 2006 04:50 PM #8
The Fortuner sure doesn't feel like it has a VGT. It's a very distinct feeling driving a VGT diesel, as it feels as linear as a non-turbo gas engine. There's still lag and ramp up on the Fortuner.
And the 2.5 DEFINITELY DOESN'T HAVE VGT. I've driven the 2.5 manual D4D on many occassions, and even with the manual tranny has a lot of lag that VGT engines don't possess.
Maybe that's for the 2007 Fortuner?
Ang pagbalik ng comeback...
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November 7th, 2006 05:08 PM #9
AFAIK
For the Fortuner it has torsen-type diffs for the center & open-type diffs for both axles. It is not equipped with a "classical" LSD at the axles.
While for the gen2 Rav4 it uses a vicsous-coupling differential instead for the center & open-type diffs for both axles.
And NO... the 3.0L & 2.5L D4D engines here are not VGT equipped. Maybe for the European D4D engines (I know their 2.2L D4D engine pumps out more torque than the 3.0L D4D).
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November 7th, 2006 05:18 PM #10oh yes the fortuner DOES have VGT at both the 3.0 and 2.5 variants. toyota calls it variable nozzle turbo or VNT. kahit low rpm rinig mo tunog ng turbo, that's one feature of VGT compared to non VGT turbos which maririnog mo turbo pag umabot na sa 2500 rpm...
Daming issue ng SU7:grin:
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