..and I guess that's why Panda Turbo is only interested in Super Unleaded, as it's Frankenstein ECU doesn't have the knock sensor connected or maybe it can't advance or retard the ignition.
Then it's a question of where to put all these gauges..
PandaHP
Just need to think about it for a bit. Do you really need a Fuel Pressure gauge?
Really? The real difference between 95 and 99 is the temperature it'll self combust. And that will only happen with a high compressionrate. Then the knocksensor will change the timing and you'll loose (some) power.
gr J
The original three gauges (Oil Pressure, Boost and Fuel Pressure) where in the top half of the radio aperture, with a rather naff single din radio beneath them.
I'd completely agree about phone holders, so that's why I replaced the gauges and the single din radio with a double din CarPlay Kenwood unit. That means that the phone can be thrown on the floor..
Using the CAD system I'd seen on Project Binky, I thought I could mount the gauges in a cluster in the gap between the existing instrument pod and the radio/ar con pod. (see photos below). But now I'd have four gauges (Oil Temp), so I need to re-design..
Just need to think about it for a bit. Do you really need a Fuel Pressure gauge?
PandaHP
95 and 99 RON or even 87 all have the same energy content. BUT low grade petrol can more easily burn explosively so cannot be used by any reasonably efficient engine without retarding the ignition timing. The knock sensor picks up the noise of pre-ignition and the ECU retards the timing until it runs smoothly. With the spark delayed the peak pressure comes too late and heat is thrown away down the exhaust. Less power, higher consumption, etc.
Some engines are more aggressive on the timing back-off which I believe is why my bike ran so badly on 95RON but was happy on 97 or 99.
When unleaded first arrived it was available only as 95 RON. The lead containing 4 Star it replaced was 97 RON though you could also get 5 Star which was 100 RON. I had a Citroen BX 1.9 GT "retuned" (ignition timing retarded) to accept unleaded and it ran like a dog. There was no knock sensor and minimal electronics in the car so there was no other option. I put it back to standard and accepted it could not reasonably use unleaded without significant work on the engine.
https://www.youtube.com/watch?v=gQghB4asSnI
I still think it's all up to the compressionrate. Maybe the 100HP would benefit, but certainly putting it in a 1.1 or 1.2 would be throwing away money.
gr J
The pressure the turbo provides combined with the compression rate makes high octane fuel nescessary in your case. Not the ECU setup.
gr J