v8 jdm

hi iam buying a 2003 wrx sti with ppp, it has a de-cat and pannel filter and been remaped by powerstation it has a print out of 322bhp? iam sure it should have more bhp then that as with the ppp it should be 305 then de-cat and remap should get an extra 35bhp ish. so should be around 340bhp am i right? what do you think guys? also if i get a better air filter ie k&n or aplex, would i need it maped again as cost a bom to have that done?

DaveBeck

iTrader: (12)

different engines different results mate. i wouldnt expect more than 333bhp to be honest

dunx

iTrader: (3)

They all end up done by different people on different days....
Mine made 340 bhp with an FMIC, but I expect it also puts out loads of torque, so I'm not too bothered with the "bar-room" numbers.
You can say it gives 35 bhp 'cos mine went from 265 to 340 ! No PPP.
If it feels good, forget it, if it feels rough, add some cash and go chase the big boys.... I doubt it will drive any nicer tho'.

DunxC

Tidgy

rough ball park is 320-340 so the 322, lahtough on the lower side of the average, is about right

possible other thing is has it been fully decated? if not thats your answer

Bob Rawle

First post stated it was decatted, it is probably down to the fuel used and conditions on the day. PPP cars rarely make the quoted figures btw

cheers

bob

__________________________________________________ _________________

Link, Motec, Simtek, EcuTek, PowerFC, DTA, Bosch, Autronic, Gems, ESL

Tidgy

was wondering if some of the cats, aka up pipe have been left in

Henrik

iTrader: (5)

No up-pipe cat on an STI afaik

v8 jdm

hi it has just a pannel filter and middle de-cat thats it if i was to get the downpipe de-cat and better air filter would that gain more power? also would i need to get it re-mapped again? is powerstation good for there remaps?

Alan Jeffery

As Bob said, the PPP's often don't make the bhp. We've seen 280 bhp and less on our dyno. The tendency is to crack up the boost early for more torque and leave it with pretty much standard boost over 4000 rpm. They do feel better than stock, but a custom remap gains so much more. Our friends at Powerstation have the measure of the car already, so I'd say pay them a visit, and do what they suggest!

v8 jdm

on the print out it says max torque at 4525rpm is 406 nm so does that mean it has 406 lbft?

Alan Jeffery

Sadly, no. NM's is smaller than lbs ft's.
I forget the formula as I only think in English, but I bet someone on here will soon enlighten you!

v8 jdm

thanks for the info is there anyone who can convert nm to lbft

Alan Jeffery

406 nm is 299.45 lbs ft.
Brain now fully engaged...!

Bob Rawle

On the road the real torque will be a bit higher, the rollers don't mimic road load impedance. The PPP maps do run more than std boost Alan, across the rev range, but they are mapped to pull back if they see any temperature at all, thats what would have happened in this case.

So bottom line the figs you have are in the ball park and a typical increase for a rolling road mapped car. Low torque is due to that.

cheers

bob

53

iTrader: (41)

Which interestingly enough is what Prodrive claim the PPP gives you 405Nm @ 4k RPM

If all you have is the PPP kit and a remap you did well 322/300 is good.

He he I was gonna say that

v8 jdm

thanks for the info guys 1 more question how do i tell if my car has the ppp? as has no certificate?

Alan Jeffery

See temperature? explain please..

53

iTrader: (41)

Prodrive mapped to run all weathers/temperatures to avoid potential overboost etc. Not that custom maps don't do this but I imagine the margin of error is higher based on Prodrive's brief to provide a warranted package.

For the certificate, you can contact prodrive direct (Mike Wood) with your cars details and they should have a record of certificates issued. Your car may also have a silver sticker on the door sill (not always fitted). Blue Intercooler hose, a hollow heat sheild which once housed a cat and now just a straight through pipe. Back box obviously and thats all you will probably be able to see. All these parts are easily obtained so without the certificate don't assume you have it. TBH if its already been mapped then its no longer a PPP anyway. I doubt PS have saved your prodrive map for putting back to standard so the PPP bit is pretty redundant. The only reason for hunting the certificate is resale value.

jd5217

the 03 & 04 sti PPP didn't come with the intercooler hose as the ic pipe was cast from standard.

53

iTrader: (41)

Alan Jeffery

Where is it seeing the temperature?
water or intake temps?

Jolly Green Monster

iTrader: (4)

there is compensation for air temp, water temp, air pressure, all set up within the original base map within the ecu.. I don't believe Prodrive alter these from standard settings.. doing a custom map it is possible to alter them if necessary on a complicated set up..

Simon

ZEN Performance

Prodrive alter most of those temperature settings.

Alan Jeffery

I think it's fair to say we all understand the principle of thresholds.
What always bothers me is the idea that some action can take place within the OE ECU without these thresholds being reached, and the fact of this being known to only the chosen one.

Jolly Green Monster

iTrader: (4)

lol.. what prodrive code you looking at Paul... one I checked was identical

alpha charlie

v8 JDM

Tried to pm you but your inbox is full
AC

Bob Rawle

Get a life Alan, who said the thresholds were not reached.

As Paul says Prodrive alter nearly all of them. (so do I for that matter)

bob

dunx

iTrader: (3)

On a similar note, my car seemed very restricted when cold (standard), but since the re-map I seem to have to exercise great restraint while the engine is cold or it is off like a missile !
Is this a result of said pressure/temperature threshold adjustments ?
TIA

DunxC

Jolly Green Monster

iTrader: (4)

could be or also that the main fuelling map is now better and as a result the fueling due to coolant temp compensation doesn't equal mega rich.

Simon

Andy.F

Your mapper can decide whether or not to apply temperature compensations to the boost/wastegate ie he can limit boost to say 0.7 bar until coolant temp of 70+ is achieved.
Your issue sounds more like you have high initial wastegate duty at low throttle openings, this can improve response on some cars.

Andy