cosworthbg

Hi to everyone,

glad to show you few pictures and dyno results from recently fully engine rebuilded Evo8.

Dynoed at TST-Racing-Bulgaria, Dynocom rolling road dino, measured at the weels, DIN correction .

It showed 287.4 kW and 585.6 Nm measured at the wheels,
converted is
385.4 horsepower and 431.9 lbf-ft at the wheels

This dyno shows about 22% losses for 4WD and teoretically may be we have
around 493 horsepower and 552 lbf-ft at the flywheel, hell massive when driving


The car is for track and daily driving.
Here it is:

The ouner's concept project , builded by ICIDesign

Fuel - regular pump gas, European 100 octane (RON I think, something like yours 93 probably)

stock ECU remapped by TST-Racing-Bulgaria, tanks to Tony
GReddy B-spec with low boost at 1.5 bar, high boost 2 bar
K&N replacement air filter
BBK Full turbo
bigger intercooler
ported head, stock turbo header, O2 housing
Precision 880cc injectors
GSC S1 cams
Fidanza cam gears
Gates racing belts with balance shafts
back cut inlet valves
Cosworth head gasket
ARP head and main studs
Eagle 2.3 stroker crank
Eagle rods
ARIAS forged pistons lightweight 300gr
EXEDY twin clutch
Walbro 255 in tank, hard wired
3" exhaust

All kind of comments are very welcome

xcelr8

iTrader: (7)

how much boost? nice results enjoy

cosworthbg

thanks,
There are two boost settings:
1.5 bar steady to the redline, this is 22 psi
2.0 bar peak or 29.4 psi at 3700 rpm tapering down to 22 psi at 6800 rpm, just turbo can't hold it, need more flow

Aby@MIL.SPEC

iTrader: (161)

nice build.

imo, you really need to get rid of the oem o2 housing.

your making decent torque, but i believe your power will go up with the helpp of a invidia 02 or o2 of your choice.

JDavenport

iTrader: (33)

Yeah, something is keeping it from really breathing, power drop is pretty severe after 5500 rpm. Great torque.

zeus1

iTrader: (19)

are you still on the stock intake box but just with a k&n drop in filter. that is probably holding you back in addition to the stock o2 housing

GST Motorsports

iTrader: (8)

The BBK Full can hold more than 22psi at 6800, even on a 2.3L

Release the flow and use good boost control

- Bryan

mrdevo

iTrader: (4)

The power is falling off hard. Even with some parts missing, it shouldn't be dying past 5500rpms. I expected it to peak around 6500rpms and flatten out getting towards the limiter even with the stroker.

Chris Moore

I bet the gain on your Greddy EBC is turned way down to keep that thing from spiking. I had to keep mine at 5% and that was on a 2.0. You will taper like crazy with the gain that low. Switch to ECU Boost.

cosworthbg

Thank you guys for the really helpfull advices
The intake system is fully stock, only the K&N replacement.
We thinking for custom made o2 housing, kind of a non wastegated turbo style with clear nice shape discharge pipe and separated wastegate exit with screamer pipe.

soceur77

iTrader: (2)

The intake system is fully stock, only the K&N replacement.


Bangs head on keyboard...lol nice build man! Use the advice given here and enjoy your car man!

MJ23FE

iTrader: (3)

Definitely switch to ECU controlled boost and at the very least get a Megan o2 housing.
That should help it breath a lot better up top and keep boost flat and power climbing.

-Jalal

GST Motorsports

iTrader: (8)

Open up that intake. I've seen 20whp gains on smaller turbos moving from airbox to a good intake

- Bryan

MJ23FE

iTrader: (3)

Is this on a tuned setup with an airbox going to an open filter intake with a retune or without a retune?

-Jalal

racer135

iTrader: (2)

Bryan,

How a stock airbox with drop in and modified lid compares to a good intake (i.e Perrin Kit). Is the intake a lot better or is it close? I wonder if that is holding me at 350awhp on a dynojet. It is either that or the 20G.