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plumb the breather pipe back into the elbow.

touche.............minute.

from what i've learnt of the stock ecu, it has its limitations in terms of resolution, leading to an ignition insensitive engine and high amounts of interpolation. It has alot of 'controls' but the actual map isnt as sophisticated as i would of likes. However the newer ecu might be better, and...

i dont get it

Gaskets can blow due to incorrect installation or poor surface finish. Typicall 'skimming' using a fly cutter from most refurb shops is frankly crap as they just leave such a coarse finish because they dont really care. 285 duration, not lift ;)

i wouldnt reccomend upping the gasket thickness by 40 thou, this also throws off your cam timing.

if the HG is blown then a visual inspection will show the fault. I doubt its a cracked head, but you cannot diagnose a cracked head without a pressure test, if you can see one, its going to be pretty big. A leakdown test would of told you if its the valves or where the gasket it blowing...

Ben, you cannot check for cracks by compression testing in situ. To locate the problem you must do a combination of compression and leakdown testing to isolate an area. Whip the head off and inspect the gasket since your compression values are out of whack anyway. But a leakdown test will...

has no one twigged anything yet?

the extra power is imported from japan.

http://www.forumphoto.co.uk/gallery/182decat/1.JPG where is the bend in that?

Runs to the inlet manifold and if you dont block it then you will have an air leak and high idle.

pipe bender for a straight peice of pipe ;)

do you know what engine range they are from first?

phew, i think you'll have to go to a specialist.

i couldnt even get any of those on special order.

that looks like a brain buster!

Yes, seems fine. The main culprit is the horrid non setting jam type sealant that they just roll on. The roller in the facotry has a swiss cheese tyre appearance so sometimes one of the holes lays a much smaller amount of sealant on the edge of the cam cover.....which will leak in time.

anyone say 1.9" lol

about 40cm

dont bother, not worth it.

far from, he had sorted out the best routing and lengths and method to re-use the valve. It was quite good and worked well. And contruction method was pretty good for a home setup, where he made a foam mould then used a gelcoat thick fibreglass and later carbon.

yes, oliver. He has since made another updated design.

no, just saying that i've never read it as a 'acoustic valve'.....because as a french translation i could see where people would relate that to tuning pulses.

On the same note, renault hardly ever name anything logically lol. But i've never heard it called the acoustic valve officially.

direct if you can.

You will not get any 'ram' air effect from any setup.

At the moment with the backlog no. I wish i could do them faster, but it isnt a quick job. takes 3 hours to do one start to finish and your pretty much shafted when your finished and doing another that day will kill your hands with white finger. Its dirty and tiresome work, so i take my...

Vagelis, The gains are across the rev range, but the larger numbers tend to be at higher rpm's. BUt midrange circa 5000-6000 you can see 10bhp gains. I cannot gaurantee what it will make on your car, as cars with higher stock outputs tend to gain less. But with a remap you should feel a...

Outright, £270 including gaskets, postage tends to be about £10.