Hks T04z Specs .

[R31Nismoid]

and as ive heard from people comparing garrett with hks turbos, is the hks ones will keep on pumping more hp at high boost, where as the garrett stuff runs outta puff at high boost levels and flattens off.

indeed, and there was a massive thread on it about 1.5 years ago.

But from what ive seen the Garretts arent a lot different to thier HKS counterparts. They are both well engineered products

[discopotato03]

I found the HKS TO4Z Product Information blurb at http://www.roggan.net/TO4Z.pdf . Some interesting pics and graphs but sadly no compressor map .

Cheers Adrian .

[R32-GTS]

Garrett t04z cheap now about 2k.

[StageZilla]

Garrett t04z cheap now about 2k.

<{POST_SNAPBACK}>

garrett t04z have always been 2K since i been lookin (the past 4 months or so)

[wrxkilla]

I found the HKS TO4Z Product Information blurb at  http://www.roggan.net/TO4Z.pdf  . Some interesting pics and graphs but sadly no compressor map .

Cheers Adrian .

<{POST_SNAPBACK}>

Keep in mind thats the HKS T04Z NOT the Garret T04Z...

[discopotato03]

Yes true , but the cartridge (wheels) seem to be the same . The thing to look into is what Garrett offer in the way of exhaust housings , the HKS version is not like normal twin entry turbine housings - the divider does not go all the way around the inside of the volute or internal passage . If you look at the pics of the HKS housing the outside of the volute is quite narrow for the flanges dimensions and inlet holes . To get the housing to flow the gas the nozzle section must be wide meaning greater turbine tip height . I'd say this must be why they chose to use the larger TO4 sized flange rather than a more compact T3 twin entry type .

Provided Garretts twin entry housings are similar style they should do similar things for the same ARR . Notice the difference in the compressor covers , big difference in size given that the same ARR is used for a wheel of the same basic dimensions . The port shroud design looks pretty and would not be hard for a machinist to copy .

Still need to see the cartridge itself and the housings (esp exhaust) from the inside .

Cheers from Parkes , A .

[discopotato03]

Yes true , but the cartridge (wheels) seem to be the same . The thing to look into is what Garrett offer in the way of exhaust housings , the HKS version is not like normal twin entry turbine housings - the divider does not go all the way around the inside of the volute or internal passage . If you look at the pics of the HKS housing the outside of the volute is quite narrow for the flanges dimensions and inlet holes . To get the housing to flow the gas the nozzle section must be wide meaning greater turbine tip height . I'd say this must be why they chose to use the larger TO4 sized flange rather than a more compact T3 twin entry type . 

Provided Garretts twin entry housings are similar style they should do similar things for the same ARR . Notice the difference in the compressor covers , big difference in size given that the same ARR is used for a wheel of the same basic dimensions . The port shroud design looks pretty and would not be hard for a machinist to copy .

Still need to see the cartridge itself and the housings (esp exhaust) from the inside .

Cheers from Parkes , A .

<{POST_SNAPBACK}>

Finally got pics of the wheels . Compressor looks a little like a big trim GT wheel though the splitter blades sit a bit lower . The turbine looks a lot like a TO4 P trim .

Cheers A .

[IMACUL8]

Hey guys just curious to know what manifold you are using with these turbos (HKS T04Z or Garrett T04Z)?

Are there off the shelf items?

Daniel

Edited November 19, 2005 by IMACUL8