Hi , my car is still not maped when i got her from japan. As i know they use 100+ oct fuel, does it mean that i have to remap asap for uk fuel, or i can use 99 v power .. What are the options and can that cause any consequences?

 

A map will be the best option tbh, aslong as you,re not tracking it etc, giving death each drive then V-POWER will be fine, plus the map releases some more power anyway.

Maybe use an Octane Booster until you get it mapped also..

 

Tnx Pete

 

Anytime pal.

Is it de-cated the car???


Simon AKA username Jolly Green Monster is a VERY good mapper and he comes to you to map the car, worth giving him a shout..


He,s on this thread fella...


https://www.scoobynet.com/scoobynet-...ou-thread.html

 

Yes it is de cated, the car stays on my drive way at the moment waiting for the manifold and up pipe to come. Yep I know, Simon has good reputation on here...

 

What year/model car is it? they are all slightly different in how they run on the different types of fuel.

Tony

 

It is ver3 face lift model.... have some overboost issues as well, 1.5 bar , even 2nd gear goes above 1.1 bar .

 

The overboosting is caused by the decat, you need a boost controller or if there is a restrictor plug in the T piece pipe off the boost solenoid, you need to drill it out slightly.
But in standard form your car can run happily on 99 ron fuel, even 97, it wasnt until the v5 cars+ where they were mapped for 100 ron fuel, but that decat wont help you until you solve that overboosting issue

Tony

 

Ok , i've got manual boost controller, which i didn't fit yet, and i've tryed to take out the restrictor from T point hose. when i took it out the boost was ok about 0.8 bar , on the 4 gear it went to 1.1 bar. But is it ok, to leave it like that , cause i've just put it back , not to lose it, cause a car is parked at the moment. Or shall install the MBC ?

P.s. the car was overboosting before i've changed the downpipe...

Tnx for yur help Tony

 

That restrictor plug needs to be in there, it stops you overboosting if the car is set up normally, taking it out and leaving it out will naff things up

Tony

 

Ok , so the restrictor is there , & it's still overboosting, maybe there is any particular place for it in that hose, Middle etc.? I've been quated 120 quid ruffly to sort the overboost by powerengineering , is it worth doing that , or MBC will sort it out?

 

They will set it all up for you, probably worth the 120 quid tbh

Tony

 

Another Thumbs up for JGM!

Mapped my JDM STI after a full decat and air filter.. Runs sweet as a nut at around 350bhp and more efficient on the fuel too!

 

Yes yes , i know JGM is the , but i can't afford to spend 600+ at the moment, and i know i need a piggy back or Apexi Power fc, as my ECU is old.
So i've got 2 options in my case. MBC or Powerengineering... Which 1??????

 

I never knew that Tony.. i,m glad folks like you are on this site..

 

I had the same problems with my STi Version III - overboosting and hitting fuel cut everytime I hit the loud pedal.
I took the route Tony suggests, Blitz MBC set to 1.3bar (or thereabouts) - then got the car checked on PE's rolling road. I always ran Optimax (it was a few years ago) and added octane booster. PE told me this was overkill and Optomax alone would be OK. I never got anything other than green lights on my knocklink and enjoyed 40k fun and problem free miles until I part-exchanged a year or so later
So, I would go and see PE, get them to set up and check for you and you should be a happy man

 

I know 1.1 bar is safe mod , is it safe to run 1.3 bar with the standart turbo?