cat7

Just out of interest what boost (PSI or Bar) do you guys get with a PPP wrx?

I have had a tek 3 aand wnated to compare (more an issue of how safe is mine compared to a factory backed PPP mod )

simo

IIRC on a my03 STI the ppp will peak @ 1.35bar, hold 1.25 & taper down to 1bar at 5.5-6k rpm

the tek 3 will peak at 1.55, hold 1.35 to 7k

hope this helps?
Simon

mightyyid

MY MY05 was running 15psi with the boost guage prior to the PPP - the this was upped to 20psi when the PPP was fitted. Ignore the actual readings on the guage if they seem too much - the main thing this shows is the increase I got following the PPP...

Andy

cat7

this is almost what I got with the tek 3, before also at 15 psi then now peaks at about 19 settling at 18

cheers

steve

cat7

My wrx is running far less boost then the sti then...I never new the difference was so much

FrenchBoy

AFAIK the official boost level for the 03-05 WRX PPP is 18psi (1.2 bar)

Thats what mine is.

Daz34

Doesn't that depend on who mapped it?

harrymonk

My04 sti boost 1.4at 4000 goes down to 1.2 up to 7,200
suppose it depends on the gauge, as well i also get -0.5 on decelleration
Paul

jasonius

iTrader: (1)

My std. 05 wrx averages around 1.1 to 1.2bar peak settling at around 1bar. It largely depends on the gear as I get higher boost in 3rd, 4th & 5th, especially if I come off the trottle >3k and then plant it again it'll peak at around 1.2 for a second.

In the lower gears it usually peaks a fraction over 1 bar settling a fraction under.

I'm having a tek3 next month so I making a note of performance etc now so I can measure the difference (as well as hopefully feeling it..! ). This includes stopwatch runs, on my favorite strech of track, through the usual speed increments.

BTW The best bench mark I've used (for several of my previous cars) is an up hill stretch of DC, off a roundabout, where from 30mph (2nd gear) at the first road sign up through the gears to another road sign about 500 meters away. Aginst stopwatch and also noted speed. Obviously this is a private piece of road that just happens to be on one of my regular routes. How handy is that..?

Jason

Fizz

iTrader: (1)

mine gets 20psi...

Soulgirl

I get an average of 1 bar for my 96 sti - having just had the boost gauge fitted, in illuminated blue, I feel like a rally driver