488 replies to this topic

[fezzasus]

Yes, I pulled the plugs apart and that's a main candidate, but I would have expected it to have been an issue straight away rather than after a week. 

 

i'll report back this evening, fingers crossed it'll just cost me £3.99 for some contact cleaner rather than £100 and a long wait for a TB.

[oakmere]

Not unusual for a bad connection to show after a few hours of vibration. Most electrical devices fail after a short period of use. Did you solder the joints? If so dab the iron back over each joint. What was the code?

[fezzasus]

They're not soldered, just swapped. Managed to get away with just seven solder joints - the switching ground on three injectors, one on the fuel thingie and all three on the MAP.

 

I'll pull it off and make sure none of the pins have been pushed back, I remember I had difficulty getting the connector on the TB so hopefully it hasn't damaged anything.

 

I'll read the code this evening and post back. I just tried the car a couple of times and got on my bike instead.

Edited by fezzasus, 25 July 2013 - 09:48 AM.

[Bargi]

 

Am also looking into oil breather options, as the Dutch ECU can handle PCV I will be modifying a gasket to open up the manifold vent and installing a catch tank on the crankcase to inlet hose to protect the laminovas from oil.

 

Be very interested to see how you get on with this

[fezzasus]

Quick update, a bit of contact cleaner on the typical offenders (TB plug, loom plus behind header tank) sorted it out. I did notice a slight nick on the TB seal, given that it's now in a different orientation than before it could be a problem. I'll source a replacement if it happens again.

[fezzasus]

Back to focus on the paint work

 

[Wreelybro]

Looking Good love the colour hope to see you at the Beds meet.

[fezzasus]

Did some power runs this morning before the rain comes. Not entirely certain about the weight, but playing around with it (changing by 20kg or so) doesn't change the output that much. 265 bhp, 325 nm torque. Maximum was 0.3 degrees of knock retard applied at low revs, so there's certainly capacity for improvement if I had better internals. For now I'm going to keep it as it is.

[CHILL Gone DUTCH]

Tire circumference is the big one, did you do runs both ways, Good results there are you going to put it on a rolling road

[fezzasus]

Yes, runs both ways, Milton Keynes is perfect for power runs as you can go up a dual carriage way section, slow down for the roundabout, go all the way around it and back up the road in the other directly. Then repeat. I've just had a glance over the data again, long term fuel trims are very good too; 0-1800 rpm 1.2% 1800-2200 rpm -2.8 % 2200-2600 rpm -0.9 % 2600 -3800 rpm -0.1% 3800 -limiter 0.7 %

[Darcini]

Back to focus on the paint work
 

That finish looks very good Fez, what's the match like from panel to panel as you've (presumably?) done them at different times?

[fezzasus]

The front bonnet is a bit off. I think it's because I have a different batch of paint, everything else is fine. I will probably revisit the bonnet once I've done everything else.

[rob999]

Top work ::

[fezzasus]

PCV:

 

The Z22SE positive crankcase ventilation system has an integrated valve in the inlet manifold used as an exhaust vent, allowing gasses including NOx, CO2, CO and volatilised lubricant oil. This valve vents the gasses from the crankcase into the inlet manifold (via a built in check valve to ensure pressure only vents on way) to be combined with incoming air, they are then combusted further. To replace the gasses removed from the crankcase, a feed from after the air filter pulls fresh air into the rocker cover.

 

The supercharger conversion typically blocks the channel from the crankcase to inlet manifold, this is partly due to the different positioning of the PCV valve, and supposedly because the CS map cannot cope with the gas flow. I'm not sure how true the latter is as the gasses are vented after the MAP sensor.

 

The Dutch ECU has no problem with PCV, and the PCV valve in the LSJ inlet manifold can cope with boost, so I modified the gasket between the cylinder head and manifold as so:

 

 

RTV sealant was added around the PCV valve to prevent vacuum loss (lines can be seen above and below the PCV channel). This means the rocker cover pipe can now return to being an inlet rather than outlet, minimising oil loss and greatly reducing loss of toxic vapours.

 

Since putting this on I haven't smelt anything from the engine, hopefully the oil will stay a much better condition too as vapour loss will be much lower.

[CHILL Gone DUTCH]

I like the look of this, Will have a proper look at this later await a incoming pm

[CHILL Gone DUTCH]

Is it just a case of changing the gasket to take full advantage of this Or are there other mods required When you say lsj manifold do you mean the inlet manfold ??

[fezzasus]

Is it just a case of changing the gasket to take full advantage of this Or are there other mods required When you say lsj manifold do you mean the inlet manfold ??

 

Yes, just a case of changing the gasket, or more specifically, modifying the existing gasket so there is a connection from the round LSJ PCV channel to the rectangular Z22SE channel.

 

You can then decide you want to have a small filter on the rocker cover vent, or connect that up to the inlet after the filter like the NA setup. I have put a 90 degree elbow 12mm hose barb in so I can connect the rocker cover to the inlet.

 

Yes, the normal inlet manifold is the LSJ manifold

[techieboy]

Is just cutting that out of the gasket enough? Are you running a phenolic spacer - will that stand up to it? MaxR's car smoked like the smokiest thing you've ever seen after his rebuild, when the PCV channel was opened up. It looked like some kind of James Bond smoke screen at Silverstone when he first had the car back up and running. Suffice to say, Silverstone didn't approve as they assumed it was a dangerous oil leak of some form.

[fezzasus]

You've got to use some RTV sealant too to ensure you don't get vacuum loss into the inlet from the PCV valve. I suspect the issue MaxR had was related to that. there is a phenolic spacer with an LSJ to L62 channel cut into it, but I don't really see the need for a phenolic spacer when i'm just running 265 bhp. It would save some cutting and messing around with sealant if that was used though.

[fezzasus]

Quick update, i've done about 150 miles with the PCV valve reinstated and everything is fine. No oil smell, no smoke of any colour.