ChristianR

iTrader: (1)

Found this..

//Start Quote

We all know the white GC8 that JUN created. We all thought it was the ultimate EJ25.
Well, they are producing another Impreza powered by EJ25 turbo. This time it's GDB body and it's colored in their color, Hyper Lemon.

Mr. Koyama of JUN couldn't achieve his vision in the previous Impreza project, the white GC8, because it was a customer's car. This new GDB is JUN's car and Mr. Koyama created what he thinks the ultimate Impreza.

The engine spec of HyperLemon GDB is as follows
EJ25 export model (could be USDM)
C/R 8.1:1
BorexStroke 100mmx79mm
gasket 0.7mm
custom made parts by JUN
<piston/con-rod/crank/cam shaft (IN&EX 272degree, 1.3mm lift)/valve spring/and retainer>
turbine TD06SH-25G
boost 1.65 kg/cm2
max boost over 1.7 kg/cm2
600ps/7600rpm
torque 69.0 kg-m / 5100rpm

Ribs are added to the block for more strength and most of the internals are custom made in JUN.

Spec sheet is not the only part that this EJ25 impress us. The design of the intake is very unique. Hyper Lemon GDB has the huge turbo on top of transmission where we usually see intercooler. From there, intake pipe runs straight directly above the engine to the the top center of the front mounted intercooler. The intercooler has two cores in one and the compressed air will be cooled down through this massive intercooler before it comes out from the ends of the IC. This EJ25T has individual intake chamber on each bank, intake air will be provided from these two chambers through custom made Individual Throttle Body. For cooling purpose, IC is mounted behind the radiator slightly angled. This car is road race time trial car so the engine has to last 10 - 20 laps before overheat.

One of the weakness of Subaru is transmission. JUN is testing durability of the stock 6speed with this car and they report no problems at 500ps level.

All the information in this post is from Option Magazine February 2003 issue. It has green S2000 on the cover. For more info buy the Option magazine. and the pic is page106-107 of the Option magazine that I took with digital camera.

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Now onto two pictures of the engine bay:




Looks strange doesn't it!

Also interesting comment about how strong the 6speed gearbox is.

scooby_xt_turbo

Paulo P

iTrader: (42)

cossie power in a scoob. Bet that was cheap to build

Gav

David_Wallis

Interesting

Deep Singh

Christian,please seek my permission before showing photos of my car.

Tim W

iTrader: (1)

Talk about convoluted

Don't let Pat see this, he'll get a new idea and I'll have to hide my car

skiddus_markus

Are the two pictures taken at different stages of development or are they photoshopped?There is a large shiny piece of metal(near where the turbo is) on the top pic that isn't present on the bottom and the pipe from turbo to intercooler is way thivker on the top one than the bottom-it's more like a waterpipe.

jameswrx

iTrader: (4)

skiddus, looks like it's centre spread in a magazine to me?

polarbearit

But only one of those TD06's - surely another is required

skiddus_markus

Aha

ChristianR

iTrader: (1)

reason why the second picture looks strange is that it is from a mag, centre pages... so that is why the middle pipe looks slightly strange

[Edited by ChristianR - 1/4/2003 7:48:05 PM]