Standard to 396bhp & 331lbs/ft in 10 days

Ben (aka Watz on here), one of our quieter members, recently dropped his Coupe off for a little fettling. Driving down from Liverpool with the car stuffed to the brim with various bits and bobs, the standard coupe was in for a performance makeover

Anyway, the results are in from the local Dastek dyno...

1.4bar
396bhp & 331lbs/ft
343whp

1.3bar
381bhp & 318lbs/ft
331whp

1.2bar
355bhp & 299lbs/ft
306whp

The car has been mapped for 1bar, 1.1bar, 1.2bar, 1.3bar and 1.45bar on the five Blitz channels. Have to say it drives really nicely off boost and is nice and smooth coming on boost, a very fast car though!

Awesome results as always Leighton.

Excellent results leighton.

wheres the list of all the uprgardes hes done from standard??

GT2871R 0.86
H&S downpipe
Bluflame 2.75" exhaust
Tubular manifold
Pro-Alloy FMIC
Pro-Alloy SIP
RamAir filter
Helix paddle clutch
Lightened flywheel
Walbro 255 fuel pump + battery feed
NGK 7 plugs
Blitz SBC boost controller
440cc injectors
Stage 4 remap

Glad to see the SBC doing it's job.

nice one but is it still on standard internals?

yeah im pretty sure he is still on standard internals too.

Thats scary on standard internals

Good result though

Ben

hes as brave as me,but i had 1.5bar to the redline on a gt3071r

Actually it's not so bad on the standard rods and pistons. The boost pressure is modest, 1.1-1.3bar being the daily drive and the torque is not too high at 300-320lbs/ft so within spec for the rods. Basically you have a very efficient setup that is only tickling the turbo!

Any graphs flea,

Ben

Jari and his friend was over 400 HP and you are very close to that. And still on standard internals. Wow!

Graphs please!!!

Very impressive, must feel "starship" like

What sort of £ is it to achieve the 400 bhp ?

I take it the suspension and brakes are uprated to cope

I'm feeling all inadequate now Leighton - I assume the gains over mine are purely down to the bigger turbine housing and the better injectors?

However, I wonder if I could cope with the extra lag of the 0.86 turbine housing - I somehow doubt it.

Fellie - to do it properly and safely, I reckon you're looking at £6k - £7k, but that includes forged internals. This case would appear to suggest its not essential, which would drop the bill to around £3k, as follows:

GT2871 - £1100
FMIC - £450
Injectors - £250
Exhaust - £400
Boost control - £350
Intake mods (SIP, filter) - £150
mapping - £500
Cool plugs - £50

However, slapping all that onto a car with standard suspension and brakes is asking for trouble, so budget for another grand or so to help the thing stop and steer

Oof .

Bit beyond what I have in mind lol .

I shall stick to my original plan of 'preserving + refurbing' the LE, then 'updating the suspension' to make it 100% to drive ( well, improved over standard, I'm not saying it's bad )

400bhp is a nice figure to throw about in the pub, and at ~ 10k including a decent 20vt purchase, it's certainly bargainous performance motoring

<< goes in search of the next step on project LE 10 ( puts 350 - 400 bhp firmly to the back of his mind )

Imagine if Watz had forged pistons, rods, headwork and cams

then he could run a weee bit more boost in the midrange

Ben

soo leighton is he still all standard suspension then?

Yes standard suspension and uprated brakes. Ben has a new set of wishbones waiting to go on and will be making a few changes over the coming months.

Great results

Pretty much the turbo, it's more efficient at the top end so will generally make more power for less boost all things equal.

The most impressive thing for me is the off-boost throttle response and pick up, it's noticeable how good it is pootling around. Ben had a new engine from Fiat a couple of years ago, anyway I did a compression test before the conversion and it showed 160-162psi across all five pots, a good strong engine.

Think Watz is going to have more than a small grin when he puts his foot down and finds almost double the power

Great results Leighton!

As always

Good results Flea.. as usual

Congratulations to Watz , you have nice Coupe now. I think it should be reliable with this moderate boost and standard internals. Also, good thing is that you have a considerabely new engine (2 years old) which resulted in some nice power figures. Get us some pics and videos Watz

Can you post the the RR graph

The setup is not far from mine. Engine wise, I'm going to have the forged pistons and rods, C&B cams, some other bits and hopefully stage 5 from Flea

Well, had it back 24 hours and i am still alive so things looking good

Il try and post some pics and a video soon!

how does it feel to drive?

missing my coupe now when im seeing this new turbo setup..

Here's a few pics of my new turbo and my rolling road print out aswell
(with thanks to leighton)

http://s661.photobucket.com/albums/uu333/kato00/

Looking good Watz. I remember meeting you at the last Dyno Demon rolling road day. Looking forward to seeing this car at the next one! Well done mate

Look forward to it matt

A comparison between me and Watz. I hope it's okay with you Watz. If not I delete this post.


Well as you can see after 4500 rpm you are the king of power
One thing I reacted on is that your max HP is at 7031 rpm. Have you changed the rev limiter?

nice work freddan

I belive so mate,7200 i think leighton said.

Do you have the same turbo setup?

Thank you!

No I have a Mitsubishi 19T turbo. Volvo used it for the V70R AWD. The 19T are very close to the GT28RS in terms of power and torque (I think).

I will soon install a new clutch and an EBC and hopefully I can up the boost to 1.5 bar. After the RR I hope to see more torque and maybe some power at the top

You can read about my project here: It´s time for a new TURBO - Mitsubishi 19T

Has anyone thought about using Vauxhall VXR injectors? Apparantly, they are 470cc, and are a straight swap. Best bit, they are around £36 each!

Andy.

Are they a similar spray pattern?

That is quite cheap, £36 = 42 Euro. I found 440cc for 59 Euro each at http://www.plracing.com/

Where can you buy them for £36? Ebay?

I bought 35$ per each from Racetronix and those are direct fit - just drop in.
http://www.racetronix.com/621031FM.html

Discounted at your friendly Vauxhall dealer

Andy.

I believe they are a better pattern and faster acting.
I think someone needs to test them out with a high power engine.

Andy.

$35 = 25 Euro. That's a great price

wow, that`s impressive for standard internals!
sorry for offtop but is it safe to run 1.5 bar with standard internals on 16vt?
got fmic, sip and walbro255 installed.

Well!!!???? Did anyone try them? Any results?

There would be no point on a stock turbo, you'd just be blowing hot air