Now, I dont want flames, as I may be going mad.

BUT......


Since ppp on the STi 8 I "Seem" to be getting better fuel consumption.

Am I mad?

 

"am I going mad?"
nope, more torque means you should be able to tootle around in a lower gear, therefore better fuel consumption, I had mine fitted this week but haven't done many miles to see the difference.

Andy

 

Heheh, Nice

 

I have found the exact same thing, you get so much more speed lower down you dont seem to need to rev as much.

 

I'll be impressed if you get more than 200 miles out of a tank

 

about 200miles to a tank for me too,

Phil G
STi8 PPP
www.wcsr.co.uk

 

I'm getting about 240 to a tank.

There is more than 2 positions for the thorttle you know

 

I found the same My STi7 average went from 130 to 150 miles on 50Ltrs when PPP'd

I have got over the 200 but only when the 'Nagging me' ....... "Its' like being in a Rally car"

Tony

 

No PPP on my MY00 and I get 17mpg average. Perhaps I should get one fitted

 

Hmmmmm. Not my experience on the 7/PPP. I've found the fuel consumption to be VERY sensitive to whether I'm stop-start and around town, or running long distances on relatively open roads. And, generally, less economical than the unmodded car About 10% less economical driving my normal pattern at my normal speed. Hmmmm.....

Phil

 

Lee,

I said exactly the same thing on here and in Cupranet. PPP = better fuel consumption, most of the time.

 

Yeah, it certainly is. Its actually very noticable now

 

You lose a bit when you push the car really hard, but overall the PPP's a winner I reckon; better performance, better consumption!

Glad you're enjoying your STi Lee.

Cheers

 

Nearly time to clean it again. Its been all of 2 days now

 

Hmmmm... I still can't get tha hang of that. I did clean the windscreen when we came back from Inverness yesterday though!

 

I've only had the PPP for about 3 weeks (STi7) so maybe too early to say but certainly on M-way and A road driving its better than before - around town probably unchanged. I have found that driving style affects thirst much more than before. Thrash it and you can almost see the fuel guage needle drop.

D.

 

It makes some sense that you see a small improvement in fuel consumption. The PPP changes the ECU but also the exhaust. Improvements in the restrictive cat and other parts may benefit overall part-throttle efficiency. Remember the engine is working to push the exhaust gases through the cat all the time, even under cruise conditions. Changes to the exhaust mean that new settings for ignition advance etc. maybe possible which again yields better efficiency.

Alternatively you can make full use of the extra efficiency for more performance and not save any fuel. In fact at full throttle the PPP engine will be able to flow more air which will require more fuel.

 

I must be going mad, but is the tank capacity of the STi8 50l or 60l???

Peter

 

60

 

unless i'm mistaken the subaru offical figures for standard STI says at a constant 56 you should get 436 miles out of a full tank.

some guy seriously into S&M must have got that number

 

If its true about the cats im now fully decatted and ppp'd but only getting 160 miles per tankfull but then again i didnt buy it for its economical driving


Mark

 

Sub3aru,
The Yellow light comes on at about 50Ltrs and Tank is 60Ltrs.

Tony

 

Sorry chaps, im not realy thick, honest! but wots all this ppp malarky then, electronics as a guess?

 

Prodrive Performance Package
Uprated ecu and a better exhaust


Mark

 

I thought it would turnout to be somthing as obvious as that! My excuse is that i havnt got a u.k scoob so wouldnt have seen it, maybe.....Am i correct in saying that they wont touch Imports!

 

Correct you can only get ppp fitted in the country it originaly came from



Mark

 

yep, since mine was fitted, I get an 2-3 mpg.

 

Looks like mine needs to go back to Japan then .

 

So after about 110,000 miles and 25,000 litres at 80p each the PPP will have paid for itself.

So this is the new line to take:-

owner: I need the PPP for the STI.
wife: But that's £2k.. is'nt it fast enough already!
owner: Its really all about efficiency and the environment.
wife: OK then... I knew you were really green at heart.
owner: Of course dear.

Everyones happy!

 

....if only.....

Phil