AdamB

This is how good the cusco diff is with 300+ hp Ah nice bargain there then!

Try running it on the wastegate spring first mate see if that improves anything

You can buy a brand new Cusco MZ from RHD japan for like £700, rebuild kits are around £200 I think. Bare in mind shipping on top of that also. TRD ones are about the same, but RHD don't stock a rebuild kit for the TRD unit so I'm unsure of where you would get one of those from unless TRD direct still stock them. If it was being used in a race event it would need rebuilding every season, just to ensure it remains tight. As when the diff plates wear out it just acts like a normal open diff. I suspect on a road car probably around 20-30 k miles depending on how hard you drive it.

Let us know how you get on mate, and try disconnecting the EBC from the equation as it then rules it out of your problem. Just had another thought, how old is the controller? I've heard that because this type don't come with any filters sometimes the solenoid can pay up, might be worth spraying some WD40 in the ports.

What diff you got Morgey? You either have the choice of Helical or Clutch type diffs. Helical don't require rebuilding, don't make any noise or knocking, and some like the quaife uses regular gear oil. However I've found that they don't give as much feedback as a clutch type. Clutch type lock quite harshly, require rebuilding every so often, need the use of friction modifier gear oil, however they do grip amazing. Even at 300+bhp theres little to no wheelspin. Many of the cluthc type also allow you to change the torque preload and how active the diff is, ie 1 way, 1.5 way, 2 way.

I thought you run the highest amount of gain possible. Lowering it only makes it more laggy from what I've seen. I would go back over the vac/intercooler pipes mate.

Looks ok to me mate. You could try adjusting the gain but if its only started doing this recently I doubt it would have anything to do with it.

Ok mate cool. If I remember you have to hold one of the buttons for 3 seconds and this will flash up the gain setting. Just another thing, make sure the controller is set to WG rather than AC if using an external gate How many boost settings do you have programmed? You may have accidently knocked it onto a different setting.

If your running an actuator you can still adjust the base boost pressure with this, but remember that the EBC can only increase on the base pressure, it can't go lower than it. If its externally gated you will have to swap springs. Adjusting the boost pressure is done by turning the right dial. But this doesn't give a boost pressure, so it doesn't give 1 bar, it gives a percentage. Its the same controller mate, just a different dash display, setup is exactly the same.

The blitz gear is represented as a percentage of maximum turbo output. Been around a year or so since I fiddled with it so bare with me lol. Using the right dial, allows you to adjust the desired boost pressure, remember this is represented as a percentage. Start off with something like 20, with gain at 0. See what your boost gauge goes to, if it goes to say 0.5 bar and you want to run 1 bar, increase this percentage to 40 and repeat the test. When you have the boost set on what you want then you can adjust the gain. The gain adjustment comes up when you see in the corner of the contr

Well worth it, but theres so many to choose from, all with pro's and con's.

Link don't work mate. I had one of these all for about 2 hours, I had the opposite though and wouldn't hold boost, kept overboosting. Turned out the solenoid was fucked. Have you tried removing the EBC from the situation? Just run a pipe from compressor housing to actuator. If you still get the same problem, then it would prob be a vac leak.

Fancy a GT28 kit mate? http://www.ukstarletowners.com/topic/60071-brand-new-zisco-gt28-manifold-downpipe-and-screamer/

Yeah I see mate, Chris @ CCM. You'll still have to find someone whos competent to map the HKS unit though. Will Alan Jefferies touch it if they have the software?

It depends entirely on the lateral force the tyres can produce, the grippier the tyres the more negative camber you can run without affecting too much. Too much negative camber can make it more difficult to brake and accelerate but works well in the corners. -1 to -1.5 is probably a good estimate for a road car.

Ah ok mate, if you change ya mind let me know

Argh fair enough mate. My theory is that if you have larger valves you can cut back on cam duration because the sole perpose of running cams is to let more air in, but if you have larger valves you're already doing that anyway. Dunno which is cheaper though lol.

Problem is with lap times you would either need to be competitively competing or have a data logger and know how to use it. I'll prob end up getting a data logger for my own car, but I doubt there is many people out there with them.

Do you know if your getting oversized valves mate?

Sounds like a good idea, just add an extra coloumn on the power board as thats already got links to build threads and specs etc.

Ah thats shit mate. Is it already in the car? Who mapped it last time? Just thinking you may be better off selling and getting something which someone closer can map, will save you a lot of money especially in travel costs.

I'll wait and see how yours gets on then I did speak to Mike about it before, but he wasn't giving too much away in terms of specs lol.

A larger compressor trim will flow more air at the same boost pressure. But, a big but. The map sensor reads pressure, not mass air flow. Combine this with an air temp sensor and the ecu is able to calculate the mass air flow going into the engine. Since the mass air flow isn't directly calculated it can fuel it no probs. Although even changing setup it is still adviseable to have a check up on a wideband and det cans to ensure the engines is safe.

Theres a couple down your way lad, but never heard of them so don't know how good they are Austec, Fensport are the best ones that spring to mind. What about Alan Jefferies? Not sure if they will be able to do the HKS unit, in Plymouth I think so bit less for you to travel.

Good episode, I love the LFA. Shame about the price tag though.