wr1 bhp/ps

[D3ave]

Brian,

When buying the WR1 I expected to get 320 ps @5800rpm as specified by subaru.

Having moved from an STI8 with ppp at 305bhp, previously 265bhp, were any of these checked to see if they came to what they were supposedly rated at??

I know the WR1 is quicker and smoother than the STI8 with ppp(having had both) but the results of bhp are similar?

Any ideas why? Was any STI8 with ppp and STI8 standard checked to see if they came to advertised ps/bhp?

D3ave WR1 246.[list][list=]

[Brian]

Ok in my personal opinion..

The PPP sti8 is very nearly the same as a WR1, THe price of a WR1 is nearly the cost of a STi8 with PPP. So i can see why there are so many fans of the Impreza buying a WR1.

There have been problems with the PPP on some Sti8s but these problems all have been rapidly sorted with a Laptop or a New ECU.
We had two at this Rolling Road, Both were sorted out with Massive increases in BHP. And VERY happy owners.

Different Rolling roads give different readings.
We all know that ProSports (in my opinion) gives high readings, compared with other rolling road companies. This was proven at the Rolling Road Shoot out on Saturday.

So a few BHP and A Few LBS here and there dosent in my mind warrant questioning the Manufacturers Claims as they always provide their best results at the end of the day to go to print.

We had WR1s ranging from 304BHP up to 315BHP so there is some movement in this world of highly tuned engines.

If the manufacturers claims were miles off then yes i would be knocking on thier door.
Do you feel that they are far out mate ?

[Millie]

Hi Brian.

Interested what Mike Wood had to say about the figs. Whilst I have owned both STIPPP and now the WR1, I think !! I feel it is a much better car and seems to respond better all round. Saw recent mag article which voted WR1 a better car than the EVO MR 340, so they can't be that slow when measured agiainst these.

Does make you feel more inclined to mod in the future to raise the game, but then I may we se up for a M3csl.

[Cold Turkey]

Hi Millie,

An STi PPP was measured at 292bhp. Mike put his own WR1 on the rollers and it came up 315bhp. The week before he'd had it on Power Engineering (I think) rollers and it was 334bhp so theres obviously some variance between different RRs.

He commented that the main difference between the WR1 map and the STi PPP was that the WR1 would continue delivering boost all the way to the red line.

There was a de-catted WR1 and although it sounded awesome and 'seemed' to spool up quicker it wasn't delivering any more power - about 304bhp.

Turkey

[Brian]

Just had some more info for everyone.

The Pro Drive WR1-

At Prosport (which is the dyno that TSL use to quote their figures from) we got 334.7bhp @ 5860 and 330.2lbft at 4310.

At PE we got 321 @ 5850 & 306lbft but struggled a bit to get the dyno set correctly and got some wheel slip. They had just painted to dyno and lost all the wheelbase markings!

The figures that I logged on the car were identical between the two runs and almost the same as on Clive's dyno, the only difference being a slight reduction in ignition as the ECU pulled the timing back to cope with a hot intercooler as it wasn't getting enough airflow.


Another interesting thing to note was the difference decatting made. The boost came in 300 rpm later with a bit of a rush and didn't maintain the same level as the other cars, being about 0.05bar lower across the rev range. This is perhaps why the power figure was down at 305 even though the temperatures were low at the start of the run and bears out what we found in our testing ages ago that our downpipe with the cat fitted has a better effect than a simple de-cat pipe.


Brian.

[Cold Turkey]

Brian,

Thanks for the update - I thought Mike had said it made 334bhp but couldn't remember if it was PE or Prosport!

Did Mike manage to sort your 'bog down' problem ?
or is that pretty much common to WR1s in general ?

cheers mate,

Tristan

[Ant]

Mine bogs down badly and would also like to know if it can be sorted.

[Brian]

Ok the Bog Down, its been something that i have been in talks with IM and ProDrive for along time ( since i bought the WR1)

I owned a Type R version 5 before the WR1, it was fully decated and a ECUTek map by Clive and Merv

The map was a custom one for myself as i wanted massive amounts of power without revving the engine too high.
And that is what i got.
It pulled like a Steamboat whatever gear i was in.
Now THe Type R has the Very Low Geared Group N Gearbox, which i loved more than many things.

Ill try to compare the gearing in basic everyday terms.

1 st gear on the WR1 was like 2nd gear on the type R
5th Gear ont he type r was in between 4th and 5th on the WR1 (out of 6 gears)
Im comparing the acceleration not the actural gearing folks



After alot of reserch not alot can be done, as soon as i had bought the WR1 first port of call was a remap to increase low end spool up.
After talks with mappers, this was not a option as the map was the best that it gets with the WR1 setup.
Pro Drive really have done wonders with this car !!!

Without spending

[Cold Turkey]

Thanks Brian, thought that was pretty much going to be the answer!

I'm happy with the car the way it is. I can easily drive sensibly around town getting good economy keeping the revs low but know I can 'launch' it if I ever 'need' to. And the mid range power, well ......

[iceman-wr1]

Thanks Brian, thought that was pretty much going to be the answer!

I'm happy with the car the way it is. I can easily drive sensibly around town getting good economy keeping the revs low but know I can 'launch' it if I ever 'need' to. And the mid range power, well ......

Thats how I find it Cold Turkey, I can't seem to keep those revs low for long tho'

[Brian]

4000 RPM is the secret number, once dialled in, its adreneline rush time.

the Exhaust note of 4000RPM plus is So Loud, we all witnessed the noise it is at the Rolling Road !!!

Spot on Pro Drive

[jimhutch]

brian,its great to read about the cars.i did not go to the rolling road because i have only done 1500 miles but i will be there next time

[Brian]

Good one Jim

[Chris B]

Hi all,
As I said in an earlier post, I've had the ECU re-set and then gone out for a blast. Car seems a lot quicker - hope it's not just wishful thinking! Seems to hit the 100 mph mark very quick. It's early days yet so I'll have more to tell after a few more miles.

Matt Clarke didn't charge me for the re-set just had to buy do-nuts for everyone in the workshop. Matt told me that with a ECU-tek re-map and an induction kit he could get it up to around 350 bhp. Food for thought.

They are a great bunch of people at Roger Clarke Motorsport and they always have time to answer any of your queries when you just show up or if you phone with a question. They do a great mail order service too, lots of nice things from Zero Sports.

Talk later, Chris B ( & wife )

[dougie549]

Hi Guys

I have a Modded P1 at the moment and am thinking about a WR1 now, i have 300bhp/300lbft torque just now.

Reading the WR1 broucher and they are saying 320ps(BHP) and 420nm (torque) when used with PPP, what is real figures of torque on the Wr1 then?

Have any of you done the same move and found big diffrences?

Cheers Dougie

[mr optimax]

when last roaded 316bhp 300ftlb

[dougie549]

Hi Mr Optimax

Cheers for the reply.

How do you find the delivery of power? Is there any part where you get hit with a lump of torque or is it quite equall over the range?

What are the clutches used in the Wr1? just a standard Sti8 one?

Cheers Dougie

[mr optimax]

under 2500rpm it does bog down a bit but after that its all go.i had a prodrived 8 sti before this one and was surprised at how much better the 1 drove.
i think clutch is just a standard one
paul

[dougie549]

Hi Paul

Thats cool M8.

Also found out today that the springs are stronger rated and lower than standard

The thing that did take me buy surprise was, well i was told this. The Wr1 is a 10,000 mile interval service but they also want a 5,000 miles power check service which is really a oil change, any one shed some light on the sbuject?

Cheers Dougie

[WR1 Bro]

Hi Paul

Thats cool M8.

Also found out today that the springs are stronger rated and lower than standard

The thing that did take me buy surprise was, well i was told this. The Wr1 is a 10,000 mile interval service but they also want a 5,000 miles power check service which is really a oil change, any one shed some light on the sbuject?

Cheers Dougie

That is correct about the 5k service. I think "Power Check" service is a salesman load of bollocks.

[The Swede]

Hi Paul

Thats cool M8.

Also found out today that the springs are stronger rated and lower than standard

Indeed. The WR1 got the Prodrive spring kit as standard. Slight softer springs that are 25mm lower at the front and 5mm at the rear.
Puts the accent more on the front and counters understeer. Also provides a smoother ride.

I put my standard STi on those after struggling with serious understeer for two winters.

The kit makes the car much more lively in slow situations but robs it of its 'on rails' feel in high speed.
The main difference is that it makes the car much easier to control. If the standard set-up let loose, you had a fraction of a second to react, otherwise you were dead. With the Prodrive kit, you got the time to read your newspaper when it starts to under- or oversteer.

I personally quite like the stiff standard set-up and if I lived in the UK still, I'd have left the car as is. But I think most of us will prefer the more forgiving Prodrive springs and on snow/ice the new kit is just fantastic.

NB: It also looks better if you got the 18" alloys. With 17" standard stuff, it doesn't look that great, especially with the significant negative camber on the front wheels. Mine looks a bit as if Bro and Pops went to sit on the bonnet.

[chris]

Hi Paul

Thats cool M8.

Also found out today that the springs are stronger rated and lower than standard

The thing that did take me buy surprise was, well i was told this. The Wr1 is a 10,000 mile interval service but they also want a 5,000 miles power check service which is really a oil change, any one shed some light on the sbuject?

Cheers Dougie

That is correct about the 5k service. I think "Power Check" service is a salesman load of bollocks.

It's called a "power check" in the service book but yes it is just an oil and filter change.

[dougie549]

Hi Guys

Good fead back from you hear.

Sometimes you dont want to believe the dealers but you are still wondering if they are telling the truth

Looking into the passenger seat thing a bit more now.

Any other things like the power check that aint that easily found out the subaru hide?

Cheers Dougie

[chris]

Hi Guys

Good fead back from you hear.

Sometimes you dont want to believe the dealers but you are still wondering if they are telling the truth

Looking into the passenger seat thing a bit more now.

Any other things like the power check that aint that easily found out the subaru hide?

Cheers Dougie

I can't think of anything. The power check thing is in the service book, i remember looking at mine the first time having ordered the car and getting a shock.

Most/all of the info you'll need is on this site. It'll do around 150-220 miles on a tank of super.