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went on a mini cruise last night with 3 other GTRs, 2 WRXs, and a RX7 S6 to Lobethal and back. Had issues with losing cars in traffic though. Engine was hot and brakes not as reponsive on way home but it sure was fun!

not sure about that one.

i always put BP in my car, execept i ran out last night & the BP was closed so i had to fill up with shell, starting off for the first 5 minutes i took it easy then i went up to about 4500RPM in third and got a knock reading of 75 on the PFC!!! im gonna wait till this tank runs out & im never going to put shell fuel in there again

Sam, Shell don't sell 98 octane fuel in SA, so if your car was tuned using BP Ultimate 98, putting Shell Premium (95 RON) is definitely NOT a good idea with an ECU with no knock control.

To be honest mate, I'd drain it and refill - it might be $60 worth of juice, but how much was that rebuild again? A LOT more.

Oooo, i havent been on a good run for ages! nice weather at night now for it, can actually get out the car and chat without getting drenched.

Also, I'm going for the Microtech to solve my problems, so car should be back at christmas time :(

hope all goes well for ya steve :D

Sam, Shell don't sell 98 octane fuel in SA, so if your car was tuned using BP Ultimate 98, putting Shell Premium (95 RON) is definitely NOT a good idea with an ECU with no knock control.

To be honest mate, I'd drain it and refill - it might be $60 worth of juice, but how much was that rebuild again?  A LOT more.

thanks for that info will, i didnt know the shell was only 95RON.

i didnt put much of the shell fuel in there, just enough to get me by. so today i filled it up the rest of the way with BP and its running all good now.

from what ive read the knock reading of 75 isnt too serious, but ive learnt a lesson there.

with that first 4000RPM right before the boost really kicks in, the computer over-richens the air-fuel ratio, not sure why, but thats why it goes all flat. i noticed my car used to back-fire a lot around those RPM, but now it rarely ever backfires

i was originally going to, but i ended up getting it fitted & tuned all in one. i also needed a bosch fuel pump, cos the stock one was running out of puff. i got boostworx do do mine, they did a top job. but i also heard good things about graham west too.

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