ronjeramy

iTrader: (1)

Hi Guys Ive just bought another version 5 sti and its on the std ecu, is it safe to run it on just vpower, my previous sti was remaped when i bought it so i'm unsure. I will probably get it remaped in the summer once funds allow

Cheers

joz8968

iTrader: (13)

I think when the 1998-1999 v.5 came out the Japs had at least 100 RON available, but don't know for sure what RON the v.5 ECU was mapped on. If it was mapped at 100, then I reckon V-Power 99 will be okay, as the ECU should easily be able to retard its ign. timing a bit so that it don't det. But that would mean you wouldn't be producing Subaru's claimed power output of 276bhp (maybe even a significantly lesser figure given the engine's age).

The v.5's ECU is the most aggressively mapped one with repect to both fuelling and ign. adv. IIRC and so is more 'on the edge' than most, so I certainly wouldn't run it on anything less than 99, that's for sure.

For ultimate peace fo mind, get your ECU ECUTek mapped by JGM on whatever fuel you prefer, sooner rather than later - that way you know you won't be risking the engine. Or, cheaper, arrange with JGM to check it on a rolling road with detcans for det and to confirm if the AFRs are fine, etc...

dunx

iTrader: (3)

Or nip to AET Turbos in Normanton and let them check it over....

dunx

RA Dunk

V-power & octane booster will be ok

ronjeramy

iTrader: (1)

Thanks for the responses guys
Cheers dunx didn't realise i had someone on my doorstep to check it out
fingers crossed I'll get to a meet, now I'm back in the scooby fold

dunx

iTrader: (3)

Hi "Ron" , so was that your Celica at Squires tonight ?

Or have you sold it already ?

dunx

ronjeramy

iTrader: (1)

Hi dunx, no that wasn't me, the car went on Sunday, I've bought a Type R, pick it up on Sat all going to plan