ginger321

hi all

I was just wondering if it would be possible to remap my sti5 from its current 99 octane v power map to a 95 octane map to save money.

I appreciate there would be implications for power etc but it would enable me to keep the car for longer.

The cars mapped by andy forest and made 319bhp and 311lbs/ft.

ac1867

iTrader: (4)

Yes it is possible, but how long using the cheaper fuel would it take to save money? After you factor in the cost of the map tweak?

Andy

BrownPantsRacing

iTrader: (6)

Yep it’s possible but wouldn’t have thought it would save you much money in the long run if you take into account the cost of the map and the few extra miles you get on v power.

I am going to do this and remap mine from 99 to 95 on next map purely because 99 is getting increasingly more difficult to get hold of in my area. One of the large Tesco stations has just stopped selling it. Only 1 I can get it from locally, it’s a pain!

Andy 2

ginger321

yeah its going to need a map tweek for about 150quid to the existing map, the cars my daily driver. Id sold some stuff on ebay and built up funds so the moneys there to offset the cost of the map tweek. Usualy doing about 26mpg in normal driving.

type-rob

26mpg is good! I hit 25 on a motorway run at the weekend was over the moon..

TonyBurns

iTrader: (3)

Yes you can but for the cost of the remap it would take you well over a year to pull your cash back in, is it worth it?

Tony

chopperman

I don't think its worth it if your doing it to save on your fuel bill. It does make sense if getting 99ron is an issue or you have duel maps and want a 95ron option if you travel abroad or long distances where finding 99 is a pain in the bum.

legacy_gtb

iTrader: (3)

I have multiple maps as suggested by chopperman, and on a long motorway cruise test i saw no difference between 95ron economy and 99ron ..... think the only differences show themselves when you start to push it on a bit!

Power wise, the 99 mapped conservatively to 440/410 and the 95 mapped similarly to 410/390.

Know none of this is what you asked, but thought you might like to know. :-)

ginger321

95 octane - might be 3 or 4 quid a tank cheaper but then theres the mpg issue with lower octane fuels...............more confused now. V power and tescos momentum stations are near my work so that counts that out as a reason.