KartaRailed

I think it runs out more around 26. Thats only what I have heard, so this is a he said/ he said kind of thing. Im sure someone has explained it well somewhere.

Ph3n1x

iTrader: (12)

25-26 psi an 1* timing from 2500-5000 rpm

Paul Nelson

iTrader: (1)

I could run 25 psi on pump 92 but my compression is 8.5

EVOllie

iTrader: (10)

My 03 ran the best spiking 28 holding 26 on C16
9.8 housing
cone filter
buschur flash
TBE
AFC
arp head studs
fuel pump
264/264
Pruven FMI

But to answer the question i always ran 21-23 on 93 pump

crcain

I've seen a lot of hard evidence that you can run as much as 32 psi on pump fuel (99 RON which is about 94 PON in the states). I think it all depends on things like intercooler efficiency, compression ratio, ignition angle, and just about every other aspect of an engine (piston design, rings, plugs, etc).

So I think the answer is, a lot. But it depends on the engine spec.

ps: If you don't believe it fine but I'd be happy to post you link after link of dyno results in the UK from the Mitsubishi Lancer Register.

rotgg

i run 22 daily

Kee1pride

iTrader: (10)

not at all but if you're only running 93 then i wouldnt take it much past this point. on alky my friend ran his on 30psi and it hauled a$s.

anyhow for those of you who think the stock turbo loses efficiency, tell that to ttp and curt brown.

Soon2BEVO

iTrader: (41)

Cant go wrong with 22psi. I usually run 23psi but have been know to go to 24 quite often

bvdawg13

iTrader: (3)

22psi, you can try and run more but your car is going to be knocking w/o you knowing

Ted B

iTrader: (6)

With stock static compression ratio, the practical limit for 93 octane seems to be around 22-23 psi. This has nothing to do with turbo efficiency, but with the limit of the octane. Beyond this point, one typically has to retard the ignition timing such that it negates the power increase from raising the pressure further. Retarding the ignition timing far enough significantly raises EGT, which isn't doing anything for the exhaust valves, turbo etc.

cangriracing

iTrader: (5)

bump

06 SLOW EVO

i have a question. i have a ix and it has a filter, downpipe and a boost controller coming in and i dont know what to turn it up to. right after i get the boost controller i am going to get a jestr m1 flash but i dont know what to turn it up to before i get the reflash.

Kee1pride

iTrader: (10)

ask john. duh

06 SLOW EVO

who?

06 SLOW EVO

oh wait never mind