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.

 

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

 

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

 

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

 

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.

 

i run 22 daily

 

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.

 

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

 

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

 

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.

 

bump

 

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.

 

ask john. duh

 

who?

 

oh wait never mind