[Mk2] [Turbo] Upping the fuel if upping the boost?

[Sparkie 86]

Hi All, Would i need to up the fuel or anything if i up the boost to 1.1 on my Rev 3 turbo? i dont want it running lean and melt me pistons lol

[asdrewq]

Rev3 turbo ECU has inbuilt maps for 1.1bar, and runs massively rich at the top end (AFR <10) for protection. I wouldn't worry about running lean.

[Sparkie 86]

Excellent, im in the process of installing a intercooler and ebc. Just want to check the fueling was going to be ok.

Cheers Si

[Al-sw20]

You can still get detonation, but you won't run out of fuel. There is enough fuel for around 330rwhp on a gen3 3sgte.

[bobhatton]

You must use the top grade of fuel, 99 octain all the time and to be safe I would set you timing to 8 deg

[Sparkie 86]

Awesome info on this forum. i run it on super unleaded with is 97 i think is that no gd? My m8s a mechanic i expect he will understand the timing thing is that a must to change the timing?

[Peter Gidden]

Awesome info on this forum. i run it on super unleaded with is 97 i think is that no gd? My m8s a mechanic i expect he will understand the timing thing is that a must to change the timing?

97 will be fine, although 99 is better.

It isn't "must" to retard the timing from 10 to 8 degrees (set at idle with E1 and TE1 in the diagnostics port shorted), but it will help prevent detonation.

[jimGTS]

the standard fuel pressure regulator is a 1:1 rising rate one.

so if it senses 1psi more boost, itll increase fuel pressure by 1psi also.

pretty handy