HKS GT3037S Twin Turbo Upgrade

[Sydneykid]

Hi MattSR, the rear cylinders get more air as it "backs up" at the rear of the plenum. When the cylinder is hotter (too hot) the fuel vapourises and doesn't combust as well. It's a viscious circle.................

Hotter = Leaner

Leaner = Hotter

Which comes first the chicken or the egg? Either way #6 is always more likely to detonate.

[Sydneykid]

Hi Rob77, the N1 oil pump will make no difference, they only have higher pressure relief springs. They don't flow any more oil.

The N1 water pump MAY cool the overall temperature of the engine down, but that's not the point. The fact is #6 will still be hotter than #1. So if you tune for average cylinder temperature, #1 will be rich and #6 will be lean.

The answer is simple, put the highest flowing injector in #6 and the lowest flowing in #1. You always find small differences in injector flows 2 to 3% is enough. Next you can trim the injectors via the ECU in most cases, takes time but it works.

Hope that helps clarify

[Parag0n]

Hi SydneyKid,

I see you are pretty clueded up on the RB series engine, The GTR will be my first ever purchase in the skyline series and I plan to spend alot of time and work on it.

If you have any information on 0-300 Km/H runs that take about 20 seconds and what setups the car use's that would be great.

I live on the sunshine coast and there is only one High Performance shop near me, Barnes High Performance, They're alright but they don't know everything about the RB Series engine and don't have many parts for the RB motors... They couldn't even get me a timing belt.

I can perform most of the hard work myself, Pop has a Block and Tackle that I can use (Ex Mechanic) and I have things like workshop manuals etc... at my disposal.

If you have any idea what I would need to purchase to make this possible please share, also im going for a 2.6L Displacement but I might bore it out later on if possible.

Thanks, Gary.

[MattSR]

Sydneykid - is that what a 'death spiral' is?

[DoughBoy]

No, that's getting married.