Welloilbeefhooked

iTrader: (3)

When I had my old wrx mapped on a Pfc I was told that a 4deg ign retard would allow the use of 97ron fuel in the event that I was stuck. The commander was always in the car so this was easy.

What have other diy-ers done in order to generate maps for both low and high octane fuels? I really don't fancy having to fill up with 97 and repeat the entire mapping process even though I could.

DT-SPD

iTrader: (7)

IMO repeating the mapping process is the only way to ensure safe ignition timing for 97ron.

A global retard, whilst OK in most cases, could still leave certain areas or rpm/load that the engine is more sensitive to the start of det.

Welloilbeefhooked

iTrader: (3)

I'm with you on this. Its simply a pain in the **** filling up at shell garages.

Bite the bullet time me thinks.

Deej

iTrader: (3)

For the same reason as you I think I'll be mapping on 97 in future and accepting the slight hit in power just for the convenience.

Seems a shame when there's a shell garage right next to my house but it's a pain in the **** tracking them down when driving long distance.

boosted

That's where you need a 5l can of thinners in your boot.

Welloilbeefhooked

iTrader: (3)

I spend most if my time running a 1bar map and its only occasionally run on 1.35. I may just map at 1.3 on 97 and have done with it.

gaborpapp

first world problems

but true indeed. Everytime i go somwehere long distance, as soon as I go under half a tank, i start looking for shell stations.

if have dyno's would be interesting to see how much power you lose when switching to the 97 fuel.

mikescooby

iTrader: (2)

Do you have the shell app to help you locate them. Very usefull when i go on holidays

boosted

Thinners