ZEN Performance

Following on from our build up of a the car which as a thready didn't get finished, I would like to get some further info up on the car showing what we did towards the end of last year when we won Brands Hatch Time Attack and cam 3rd overall at TOTB. And then try and get some stuff on line about what we will be developing on the car this year to run a little later on.

A few things to wet your appetite while i sort pictures and hosting etc.

Flat floor and diffuser - on the car at brands, further development in 2009
Suspension development - developed over 2008 and 2009
Dry sump kit - developing full kit for retail due june 2009
Less weight - try and shed up to 70kg over the course of 2009
More power - target 800hp without nitrous
Wider power band - avcs cosworth heads and cosworth cams, cosworth intake manifold, individual throttles.
Engine tweaks - Cosworth internals to solve a few minor niggles from 2008
Solaris ECU - full lambda control, knock control, datalogging etc
More E85 development - fuel system tweaks.

Fai17

iTrader: (2)

Will be keep an eye on your project Paul

dazdavies

iTrader: (22)

Good stuff Paul looking forward to reading it.
No cloak and dagger mysteries this time though the suspense over the colour was just too much last time around

F1 CJE UK

iTrader: (8)

diffuser.... you sure thats legal what point in the season will you be planning on, sure it will be a great to see a few scoobys going head to head good luck with the car

SkullFudge

Should be an interesting thread !!

Pete

All the best with the development Paul, sounds like it,s going to be a serious car once finished.

Granby

iTrader: (5)

typeRv4

Whats the story with under body aero regulations ?

I have wondered if you can legally make a ground effect underbody ?

ZEN Performance

dynamix

iTrader: (3)

Will be good to see it in action - it was awesome at Brands

eureka

iTrader: (1)

i will be following this thread, awsome car paul the envy of me and thousands of others

steve

ZEN Performance

I am currently working on a new website, just for the car

http://www.team-zen.co.uk

At the mo, there is a small amount of info but loads and loads of build and event pics from last year, many of which have not been published before!

As stuff happens, we will blog about it on there, so please subscribe to the blog (quicklink on the right hand side of the blog), that way you will get emailed when we add anything new

On the off chance you are on Twitter, you can also follow us on there, ZEN Performance (TeamZEN) on Twitter

Thanks to Duncan for technical help and hosting

Cheers!
Liz

V4JDMSTi

iTrader: (2)

subscribed

eureka

iTrader: (1)

subscribed cant work it out but still !!!!!

ZEN Performance

So, the ZEN rollercoaster has been in full effect!

We decided to do a full year of Time Attack... on the 31st March! Nothing like leaving it till the last minute

That gave us just about 3 weeks to build the car back up, from a point where it had - no engine, no brakes, no ECU and no wheels. It proved to be a very tall order, with just about everything coming together in the last week and the car running for the first time at 6am on the day of the first round on April 25th.

We didn't make it to Oulton till the qualifying, which we managed, with just 2 timed laps. But it just wasn't meant to be and the untested car threw a few little niggles at us, enough to leave us with no chance to put in a full timed lap in the final.

You can't keep a good team down though and we have been working hard most evenings to get the car ready for Knockhill on May 17th...

You can read every single detail of the blood, sweat and tears on: http://www.team-zen.co.uk

There is tonnes of write up on the build process, an event report from Oulton and what we have been up to since - including my favourite thing that happened this week, delivery of the uber lush and sexy RAYS wheels! There are also many, many photos, although no large sized ones as yet because I haven't found the time to upload them! Should get to that this weekend. You can subscribe to the blog, so everytime new content is added you will get an email. You can also add your comments to the blog, which is most welcome. Team ZEN are not big budget, but we are big on passion and we really want to share the lows and highs with you on this!

In the meantime, to whet your appetite, here are some photos and the spec list as the car is right now....

Cheers all! Liz


Photo taken by Kev Horsley


Photo taken by Ed Fahey

2009 Specification

ENGINE & ANCILLARIES
Subaru OEM EJ257 block with custom ZEN strengthening
Subaru OEM EJ257 crankshaft
Cosworth Xylan-coated forged pistons
Cosworth EJ25 forged H beam connecting rods
Cosworth race bearing shells
Cosworth 12mm high flow, high pressure oil pump
Cosworth CNC ported big valve cylinder heads with USDM AVCS cams and valvetrain
14mm WRC style head studs
Cosworth stopper headgaskets
ZEN custom individual throttle bodies
Cosworth inlet manifold
Cosworth Kevlar timing belt
Garrett GT40R twinscroll turbo on custom manifold
Twin 38mm Turbosmart Wastegate with custom pipework
ZEN custom exhaust
100mm inlet with K&N filter
ZEN custom front mounted intercooler
ZEN rear mounted water radiator
Solaris ECS

FUEL SYSTEM
100% Bioethanol E85 fuelled
1000cc top feed injectors running at 90psi, producing 1400cc flow
ZEN custom fuel rails
5th 740cc injector on intake
Twin Bosch motorsport 10 bar pumps
ZEN custom swirl pot /external pump set-up
ATL fuel cell housed in ZEN custom carbon kevlar boot recess
ZEN hardline fuel pipes

DRIVETRAIN
Subaru OEM 6 speed M/T gearbox
Exedy Triple Carbon Clutch & Integral flywheel
Quaife front Diff
DCCD centre diff
R180 Plated limited slip rear diff
Neetronics electronic centre diff controller

CHASSIS
Full seam welded shell
Custom Cages T45 FIA spec weld-in roll cage
ZEN custom rear anti-roll bar
Whitelinefront front anti-roll bar
ZEN-modified subframes and pick-up points
ZEN custom solid-diff mounting
Hardrace lower arms to rear
EXE-TC Suspension custom made to ZEN specifications and based on Group N rally system
K-sport airjacks

BRAKING
Compbrake 350×32mm 6 pot brakes to front
Compbrake 330×28mm 4 pot brakes to rear
ZEN custom brake lines
Performance Friction 07 compound pads to front
Performance Friction 01 compound pads to rear
Subaru OEM MY06 STi hubs and shafts
K-sport hydraulic handbrake

WHEELS & TYRES
Rays Volk Racing CE28N 10 spoke forged mono block wheels, 18×9.5 ET35, in titanum silver
Toyo R888 255 width tyres
Rays Volk Racing TE37 forged mono block wheels, 18×9.5 ET35 in bronze
Toyo R888 255 width tyres

INTERIOR
Cobra Suzuka composite seat
Sabelt FIA harnesses
Lifeline Pro Zero 360 fire extinguisher system
AIM Digital Dash with full time datalogging
Neetronics electronic centre diff controller
Momo steering wheel with quick release hub
All dash panels flocked
Custom wiring loom and switch panel

BODY
WRC / motorsport shell
WRC wide arch carbon kevlar body panels
ZEN custom rear diffuser, flat floor and front splitter
ZEN modified twinblade aluminium rear wing
Polycarbonate windows and rear screen

Granby

iTrader: (5)

See these wheels yesterday and they are looooovely and soooooo light

STiFreak

iTrader: (4)

Very impressive indeed. Looking forward to seeing this car running to its full potential.

ZEN Performance

So, we made it to the test Very happy to report that the car was very fast indeed at Silverstone yesterday and Tom cannot wait to get behind the wheel at Knockhill next weekend. With luck Paul should have some time to make some technical posts here and on http://www.team-zen.co.uk over the next week

Liz @ ZEN

ScoobyDoo69

iTrader: (17)

Is it just me, or is the engine a lot further back than normal ?

ZEN Performance

I think that perception is down to the angle of the engine bay photograph Combined with the fact that there is a hell of a lot less in our engine bay than usual, turbo at the front etc etc

Come check it out in the metal some time

Liz

beef-on-the-bone

iTrader: (5)

looks awesome!!!

can't believe it keeps getting better?!!?!

ZEN Performance

Thanks

But I do believe this is just the start of a very long developmental process and its only going to get better

Liz

rooferman

iTrader: (6)

Great write up Liz......

Pete

Well done all @ Zen, that looks fantastic Liz, credit to all as said. Roll on Silverstone on the 31st, can,t wait to see it going round there, class win me thinks.....fingers crosssed..

wrighty338

iTrader: (33)

awesome, one of my fave cars

finchyboy

Did Pete Whitfield build the engine ?

ZEN Performance

All built in house by either myself or Tim.

Cheers

paul

F1 CJE UK

iTrader: (8)

how are you finding the Solaris, have read a lot of very good reports on this set up very tempted to run in on my wrx

dynamix

iTrader: (3)

it was looking very good there last week - some great times and speeds.

ZEN Performance

It's an excellent ECU, but worth buying with the extras to enable a proper setup such as closed loop fuel control, 8 position cal switch and proper air temp compensation. Luckily, all the features are already enabled in the Solaris so you don't have to pay to unlock them.

It's an excellent setup for a road car and our recommended route for anyone wanting to go to the next level on their ECU.

Paul