Thread: turbo options, pump mods, etc

Originally Posted by isuzurover

If you had a 5-speed the 4.3s would be a good choice with 35's.

A few of us with 5 speeds run 33s and 1.2:1 T-case high range. (instead of 1.003).

This is what I run. It's well balanced (I'm still non turbo, however).

Where have people got their VNT Turbo's from? how much were they? I asked one place a little while ago and it they wanted 2.5k for one

Originally Posted by flagg

This is what I run. It's well balanced (I'm still non turbo, however).

Where have people got their VNT Turbo's from? how much were they? I asked one place a little while ago and it they wanted 2.5k for one

I'm guessing OS.

I'm ordering a new cartridge for a neighbours Trytoo that's fragged his TD04.

A$315 + $40 postage brand spanking new from Japan vs way too much money in comparison for a changeover from anywhere here. Another mate was trying to organise it and the cheapest he could find was $600 + for a second hand one from here.

Does anyone know if the wrx water to air intercoolers are
Large enough to work well? I'm thinking of using a second hand jobbie with either a tb25 or sourcing a vnt? Or am i better running a front mount? I have the room as it was a aircon county with the pushed out grill and doubt aircon will go back in

Originally Posted by def-90

kool thanks for the replies gents, so from what i can find the gt2260 vnt doesn't come with external wastegate? and they were in audi 3.0L and iveco daily 3.0L and is the flange setup same as stock turbo maninfold?

another quickie am thinking of putting my toyoconverted diffs in the baboon (isuzu) they are 4.3's will this be way to low geared for highway with the lt95 and 35's? or will 3.54's and 35's with the 4 speed be too high? i ran 35's previously with a lt77, 3.54's and 4bd1T and was torquey enough to handle it

You only need an external wastegate on a VNT turbo when you're pushing the turbo way outside the flow range it was intended for. Reliability becomes a big ? at this point.

Most VNT turbos come with a very small necked down shaft (aka "slender shaft") to shave 0.01 seconds off their spool up time. These are a source of turbo failure when pushing high boost or on some cars just pushing factory boost levels (usually 20psi or under).

A good turbo rebuilder can mix, match and modify parts to build a stronger turbo capable of more boost reliably. I have a price now for a new turbo for my work car, it includes using a GT20 turbine for a bigger/stronger shaft and machining it down to fit inside a GT1749V exhaust housing. The factory turbos with slender shaft seem to do around 100,000km at 20psi before shaft failure, more boost and life expectancy plummets.

Lovely group photo here showing the differences in shaft and some failures:

Product Details

OK so i'm looking at a vf23 turbo off a wrx and some sti's will this spool up quick enough for the isuzu? Obviously have to make a manifold adaptor which my mate hopefully can sort


IHI VF23
(388cfm at 18psi, 250-325whp, Bolt-On)
This is the standard equipment turbocharger used on the JDM Subaru Impreza WRX STi 22b. The VF23 is a ball bearing turbocharger that utilizes the P20 exhaust housing like the VF22. This housing is mated with the smaller compressor housing of the VF24 for fast response and excellent low and mid-range performance. It does not have the same top end power of the VF22, but spools up slightly quicker.


What are your opinions on this one?

Thx sam

Sorry either the above or a td05 or a gt2871 (well a cheap jap version) these are a 'performance' upgrade turbo for 4.2 patrols but have a t2 flange and a .64 exhaust housing


Rush S340i Turbo
















This auction is for a Rush S340i Turbo. These are a high-quality japanese-made turbocharger.*This turbo is rated to a maximum of 340rwhp, although some setups may exceed this. This is a T2 flanged turbo, and has an internal wastegate.


Specifications: -

Compressor side:

54mm Inducer
70mm Exducer
Compressor Housing, 3" Inlet, 2.5" Outlet

Exhaust side:

53mm Inducer
45mm Exducer
0.64A/R Exhaust Housing, T2 Flange,*T25/T28 Dump Pipe Flange (See our other products for suitable dump pipes).

This turbocharger is oil cooled and water cooled, and plain-bearing.


Returns policy: Sorry*no returns accepted

Check out my other items in store to grab a bargain!!!!

*Rush S340i Turbo
















This auction is for a Rush S340i Turbo. These are a high-quality japanese-made turbocharger.*This turbo is rated to a maximum of 340rwhp, although some setups may exceed this. This is a T2 flanged turbo, and has an internal wastegate.


Specifications: -

Compressor side:

54mm Inducer
70mm Exducer
Compressor Housing, 3" Inlet, 2.5" Outlet

Exhaust side:

53mm Inducer
45mm Exducer
0.64A/R Exhaust Housing, T2 Flange,*T25/T28 Dump Pipe Flange (See our other products for suitable dump pipes).

This turbocharger is oil cooled and water cooled, and
*

*

*




*

*