CNHSS1 wrote:You need to factor in that it ideally needs setting up on a rolling road to get full benefit, but since itll need a new power figure anyway itll need dyno time anywah.
Effectively you want to "map" the boost curve to the power curve, backing off boost where you get a spike and upping boost where theres a slump.
That's the plan. Just need to work out where to take it.
There's a place in North Manchester that I'm thinking of taking the Audi to for a remap, I'll enquire there or at the place in Stockport that Josh recommended Plenty of time before next season though..
Exhaust manifold and turbo are now back together. Fitted with the new Nissan gaskets !
Ran it up to temperature and it seems to sound and run beautifully. Better than it has done all season.
The raspy sound on the overrun is the exhaust.
I've changed the spring in the actuator to a 0.5 bar one, which would probably put the power down to around 170bhp ish. Hopefully this will take the strain off the actuator diaphragm and it'll become reliable again
The bleed valve that's fitted will allow about 0.7 bar of boost in its current setting which is down on what it should be running. So the next step is to choose a boost controller. Truth be known, I'm confusing myself with all the choice and I don't want to get it wrong. My criteria is :
* It must be good quality, not some eBay tat.
* It must retain all of its settings when the battery is disconnected.
* I must be able to engage it whilst wearing race gloves or (ideally) it should work all the time without having to switch it on for each run. Quite a few seem to default to stock boost unless you start them up each time you switch on the ignition.
* It must be under £300
The reason I've pushed to get it running again is that it's supposed to be on the stand at the Manchester Classic Car Show this coming weekend. So not only is it running again, it's had some Cheshire treatment too:-
I think I've now read the manuals and customer reviews for about ten different electronic boost controllers
The problem I have with them is that they are either too complicated, too blingy or a mixture of both.
I just want something to control the boost accurately and ultimately make the car quicker and smoother to drive. Set it up once and leave it alone. I want a simple method of switching between high and low boost modes, that doesn't require scrolling through menus and sub menus. Call me old fashioned, but simple usually works
Anyhoo.... I think I've found the very thing. It doesn't have a GUI, an LED interface, bells, whistles or flashing lights. It just has a big switch that toggles between high and low boost modes. It gets great reviews and comes in at around £175. So I've ordered one from Amazon, as I know their returns policy is good should it not live up to my expectations.