Alan Jeffery

We ran it again today after a group session and it pulled up 513 bhp with 490 lbs ft.

Lateral Performance

iTrader: (20)

Realistically, I think it's going to be quite a challenge to get 90bhp from circa .5bar of boost !

MartynJ

Oi, you are doing me down here, it was 502lbft, lol.

Harryr34

iTrader: (9)

Highly unlikely

MartynJ

I tell you what Mark, let me come and rob you of half a bar of boost and we will see how your car feels without it, lol.

joz8968

iTrader: (13)

Surely, on a turbo with a 500bhp-capable compressor, then c.90bhp from an added 0.5bar is entirely possible?!

After all, on my 350-capable TD05H 16g, I have gained 45bhp over the MY93 WRX's stock 237 (now at 282bhp)... And that is with only 0.5 to 0.3bar added to the std 0.8bar (peaks at 1.3/drops to 1.1). And this is on the power-sapping, crappy little TM, don't forget!

Or is my physics deeply flawed and simplistically naive, lol?

Lateral Performance

iTrader: (20)

Martyn,

Yes, my car would be slower, as would all turbo cars losing .5bar of boost

However, Harryr34's question was how much boost he was going to have to run, to get 500bhp on his car, and 2 bar was suggested.

As I said, IMHO, 90bhp from circa .5bar, when it's ALREADY running 1.45 bar, & 10% methanol to get 412bhp, is going to be a challenge.

It would be interesting to see Mervil's graph, showing boost too.

IIRC, it's running 2 bar peak, I assume to achieve the 430ftlbs ? But Alan didn't say what the boost was dropping to, to achieve the 453bhp ?

Your 513bhp/502ftlb is a great result ! more boost, some methanol ?

will_wrx

Let me get this straight this turbo bolts in existing position? And can run 450-500hp?

I think I will be in contact this week, is there a waiting list? Or are they held in stock?

This is like a dream come true for me ahahahaha

Lateral Performance

iTrader: (20)

Standard maps are designed to be very conservative, running rich, and with safe ignition timing. Just adjusting the fuel, & and ignition will see gains.

Generally, on a 2.0lt engine circa 10bhp per .1bar of boost is common on V Power, or similar. This will increase with better fuel, and engine size.

There will of course be exceptions, such as a change of component that improves the VE of the engine.

joz8968

iTrader: (13)

Of course.

Law of diminishing returns - turbo efficiency 'sweetspot' already reached, etc...

MartynJ

To be fair Mark, other than supplying the turbo we haven't had much involvement with Harrys car. We know nothing about the general state of play with the engine and we aren't mapping it. We have seen 500+ from 2 Imprezas running the S206 and 2.1 combo, we know the turbo is capable of making the figures but as you are fully aware, there is of course far more to making 500hp than the turbo alone.

On the 453bhp run on the dyno, boost peaked at 1.8 bar and held 1.65, as mentioned based on the mileage we were more than happy to leave it there for a moment.

A nice cold intercooler and a stone cold gearbox, lol, go figure.

ScoobyNudge

iTrader: (4)

is this a 2.1 graph or 2.0 litre im confused?

Alan Jeffery

Martyn's car is a 2.1 stroker. It uses standard V5 heads and cams and an S206 turbo mapped using Simtek. And that's about it as far as power is concerned. I think the 11.1/127 mph quarters from an absolutely fully trimmed car speaks for itself.

Alan Jeffery

Sorry son, having taken a look, you're quite right.

jd5217

Broke the 500 in both numbers, very nice.

Harryr34

iTrader: (9)

Martyn your car must go very well! I made the adjusments to the actuator and will be visiting Simon on Friday It feels very very fast at 1.45bar, just need/want the figures now lol

V5RLTD

iTrader: (5)

It will be interesting to see the figures, make sure you post a graph

MartynJ

She ain't no slouch Harry, lol.

2mov.flv video by BonnieAmber - Photobucket

Still in true full trim including spare wheel, lol.

I am sure you will get there, although it doesn't suprise me to hear that it goes well even now.

ScoobyNudge

iTrader: (4)

Bloody hell!!!!!

Sorry Alan iis just hard to keep up with the thread from time to time.
I didnt know what I was looking at I thought we were still on about the 2.0 with s206 turbo.

Alan Jeffery

In all honesty, I don't think there's going to be that much in it if everything is fully worked out. We expect to see more torque from the 2.1 and better spool, that's obvious, but I'd say a well sorted 2 litre would make 500 bhp from this turbo.

Alan Jeffery

Just been testing a 2.5 fitted with the S206. Running a splash of meth with V power. Peak 1.85 bar holding 1.6 bar.
Torque..
3000 rpm = 290 lbs ft.
3500 rpm = 450 lbs ft.
3900 rpm = 580 lbs ft.
Over 400 lbs ft from 3400 rpm to 6000 rpm.

DJ_Jon

iTrader: (7)

Its not V-power in the tank Alan, its BP Ultimate 97, couldn't be arsed to drive to South Brent

Awesome results, thank you very much for a top service

joz8968

iTrader: (13)

Fantastic results! This S206 is fast becoming something of a (not so miniature) hero! lol

Lateral Performance

iTrader: (20)

Alan,


Is 580ftlbs @ 3900rpm /1.85bar a typo, or, just how big a "splash", are we talking ?


3500rpm = 450ftlbs (1.44cfm/bhp) is about what would be expected.

3900rpm = 580ftlbs @ 1.85bar (1.1cfm/bhp) is a massive jump in VE, and some what unheard of on a Subaru.


Mark.

Alan Jeffery

Remarkable yes, I somehow thought you'd be interested enough to comment! That's not a typo. Martyn mixed a little meth in with the fuel, I thought it had V power in it, but apparently the owner couldn't be bothered to drive to S. Brent! Even on standard pump fuel, and 1.4 bar on the low map, it's a flier. We were just interested to see what could be done with minimal effort.
Whatever comment you'd get from passengers, "laggy" isn't one of them! it's more like "holy ----"
We have been saying there is a lot of potential in these turbos, and we are far from finished working on them, with four more various installs in the pipeline.
Of course you're more than welcome to pop down and take a look at what we're up to any time you like.

wrighty338

iTrader: (33)

facking hell! 11.1!

SMA01 - black scoob

this turbo seems very impressive alan....hope ive made the right choice on the 1 weve gone for on my car...??

StuS

iTrader: (5)

What have you gone for?

SMA01 - black scoob

alan has my car there just now, v8 sti, 2.1 stroker with a gt35/42. lots of other supporting mods being fitted as well so should come together nicely..

RA Dunk

Wont the GT35/42 be a bit laggy for a 2.1?