The Dan

Yes I could

Sweet

I didn't realise it waited that long to start evaporating. Damn this E85 is smart stuff, so different to other alcohols lol

How can it not cool the intake charge? Alcohol evaporation will reduce temps

Easy mistake to make mate. Don't be hard on yourself. Now go out and smash some pushrod dinosaur into submission.

Sorry for the triple post but I'm doing this on a mobile . I took another look at the video and I'm almost 100% sure you have the regulator coming off the wrong side of the rail. That one in the pic closer to the cylinder head and slightly forward from the brass(?) fitting you are pointing to should be the pressure reg. You have your feed going to that and the return coming off the other side. Also, with your reg set up externally on the strut tower, you should always set the pressure gauge just before it. It eliminates this problem as a possibility when you do

The pressure dampeners look exactly like the pressure regulator so if anyone is going to make a mistake and mix them up, a Neo is the one it will happen on. It can be very confusing.

Are you absolutely sure you have the lines around the correct way? The R34 fuel rails have pressure dampeners on both sides of the rail as well as the factory pressure regulator. If you feed fuel in reverse, it will show pressure on that gauge because you have it on the feed side but the reg won't work in reverse. Just try swapping the fuel lines around mate. It sounds exactly like it by your description

I have comp tested dozens and none ever exceed about 140. That's not to say they can't though. Even brand new engines I've tested come in at that result. Increasing the static comp ratio will also effect that result. Was your old RB20 modified possibly?

Check for vacuum leaks, clean air flow meter, change spark plugs and fuel filter, get injectors cleaned.

If you have injector pulse while cranking then the relays will be fine

I'd be very surprised if you could find another RB20 that's over 140psi. Those results are perfect. RB25's are usually around 155-165 but RB20's have a lower comp ratio and that gets them around 130-140.

Yes that is correct. The reg does respond on spring pressure on the diaphragm sorry

Sorry first sentence should read 'given pressure'

A given flow through a restrictive orifice will increase if the flow is increased but the orifice is not. The reg doesn't know how much fuel you want. It only knows how much resistance to create. If you increase the flow of fuel by increasing the size of the pump or replacing the pump, the pressure will increase because the reg still creates the same resistance

Pull some fuel out. 100psi rail pressure? Back it off

Yeah I'm talking about shaft speed in RPM. Tailshaft speed is only ever faster when wheel speed is faster as gearbox gearing is a reduction from engine speed

Yes but comparatively run M85 and see if it's the same

Ethanol is just like methanol. It would work well without an intercooler. Obviously E70 isn't as good as methanol so the cooling effect isn't going to be as good. I'd still run one, not worth the disadvantage

It looks like the cartridge is covered in oil in that pic with the GCG tag. It's not an oil feed line weeping or something is it?

Yeah it can do that but it's a mission and a half to get that restrictor out. They don't just fall out, you need to wind a screw into the guts of them and pull them out with some sidies

Yeah some photos would be great. No I haven't seen anything like what you are describing but without seeing it, it's very hard to say. Oil has a funny way of coming from one place but looking like it comes from another. If you take the turbo off and there is oil inside the turbine housing, then there is a problem. It's not as simple as a quick rebuild as usually this will cost you more than just replacing the core altogether. Just make sure it's not something silly like a scored copper washer of a weeping oil feed line right up where it feeds into the turbo.

Ok so it has something like an AVO turbine housing on it and you're running a 10-12mm spacer to get comp cover clearance on the standard manifold? Sounds all normal to me. You might have a dodgy turbo on your hands. It would be very unlikely/uncommon to have a new garret core piss oil out like that but you would need to send it back to have it checked. Judging by your comment on its km age I assume you bought it second hand? If so, give it back.

Most likely blocked oil drain hose or a crank case breather problem possibly. Is it an off the shelf 3076 or is it a 3076 in skyline housings? Also who fitted the turbo for you?

GT3071R or GT3076R. Run them external gated for better boost response and overall power