Just been looking at the MLR and looking through some of the EVOs for sale.

What sort of transmission loss do them boys work on cause theres a Evo 9 for sale with 282.5 Bhp ATW which he's worked out to be roughly 380 at he fly thats 35% loss

Surely they must be a similiar loss to a Impreza ie around the 18% Mark?

 

It's one way to make your fly figures look good down the pub i guess

 

its more like 26%, its not as simple as x percentage there s a hug long calculation, but roughly speaking its 26%

 

If thats the case then mines making roughly 360 at the fly on the standard Turbo. Surely thats not right ??

 

yeah mate sounds about right, mines running 340 at the fly 260 at the wheels, or near as damit

 

SO the figure Subaru give.. is that at the wheels / flywheel?

 

if you mean the 276, thats at the flywheel

 

So 276 Divded by 1.26 gives u 219 ATW

 

279/100 * 74 = 204bhp

bear in mind thats a rough thing not exact

 

The new-age ECUs actually work out a theoretical at-the-wheel figure, but I'm not sure how. On the run that gave me 390bhp flywheel on the rollers, the ECU reckoned 275 or so at the wheels. But as I said, I've no idea how accurate it is.


M

 

390/100 * 74 = 288 so not far off at all

 

Ok to further my question as im a bit daft If my car is quoted as 220ps on all scooby websites (import tdo4 wagon auto) is that at the wheels or the flywheel? Im guessing the flywheel ?

 

yeah it is at the fly, also ps isnt = to bhp though dont forget (although not far off)

 

Yeah but 22ps is what, rought 218 bhp or something daft like that, not a lot in it i knoow.. Cheers

 

heres a link to conversion figures , citroen no less, pmsl


c_converter_rates Page

Bhp to KW 0.7457 KW to Bhp 1.3410
Bhp to PS (hp DIN) 1.0139 PS (hp DIN) to Bhp 0.9863


so 220ps = 216.986bhp

 

Glad thats so simple

 

it aint pmsl, thats just a very very simply way of working out whats realy a long winded calculation

 

My scoob has gained about an extra 20bhp just by reading this thread!

 

how you managed that? lol

 

Because I was always told that transmission loss was around the 18% mark, if it's infact 26% then my bragging rights for my fly figure have just increased by around 20BHP

 

Like having a free ***** extension.

 

 

lol, nah its more than 18% i think FWD is 16% by comparison, although im not sure if that figures near the mark or not in truth. always been more interested in the awd figure

 

Ste u and me been speaking to the same tuner me thinks

 

I've had three sessions on the rollers (and used two different ones), plus have had umpteen delta dash runs (and had the car on a weigh bridge)....mine has always been around the 14-16% mark....

 

every scoob is different

mine was 272bhp at the wheels 2 weeks ago

my mate put his on with a much bigger spec then me and got around 276bhp at the wheels with much bigger transmission losses