CoxyLaad 0 Posted October 19, 2009 yeah it does flap about a bit lol Quote Share this post Link to post Share on other sites
viGGe 0 Posted October 19, 2009 Holy sh*t! Thats some sweet numbers :notworthy: :notworthy: Hope you get the problems fixed. Quote Share this post Link to post Share on other sites
_leon_ 0 Posted October 19, 2009 good man - almost there Rob! Quote Share this post Link to post Share on other sites
coullstar 0 Posted October 19, 2009 erm, they do indeed breath quite a bit, but they shouldnt collapse? when you plant the throttle it should actually expand as the throttle body is opened and the air rushes in. It will contract when you lift off the throttle. I noticed the 2.8 one did it a hell of a lot more than the 3.2 one. Mine does definitely does that on agressive throttle usage. Quote Share this post Link to post Share on other sites
tribetype40 0 Posted October 19, 2009 I'd say that was petty respectable it can't be that far off if it can still make 278! What ecu are you running, standard rempapped or after Market? Also where did these other copied maps come from? Quote Share this post Link to post Share on other sites
tribetype40 0 Posted October 19, 2009 Just read your discription again and if it's fine up to 2k something odd is happening. Above idle and well before 2k both. Inlet an cam advance should both be active. As you say your torque is shooting up initially, as the mk5 does then it would seam the inlet and cam advance is working. Initially any way. Above 4k the inlet reverts back to normal and the cam advance tappers off back to no advance so this is probably why it's feeling normal after 4k. As such I would be looking at the map and it feels to me more like cam timing. If it's as drastic a difference as you suggest I doubt little difference the inlet makes would effect it that much. You should be able to check the inlets working visually. If it's moving ( at the right times!) then it's pretty certain it's working. It's a piece of plasitic=not much to got wrong. I've heard of them getting rattely and getting stuck but that about all that could go wrong... If your running oem ecu you should be able to vag com the duty cycle of the cam advance soleniod to check that's working. If you can/did(?) take a log of this while you did your runs it should be pretty straight forward to see what's working. Keep us posted as it will be interesting to see what it was causing it. Quote Share this post Link to post Share on other sites
Toad 0 Posted October 19, 2009 Rob's was noticably deforming quite a lot when opening the throttle quickly, but sounds like it's normal then! Pete Griffs used to move a lot. Was amazing to watch it, I can only assume that it will fatigue given time. Quote Share this post Link to post Share on other sites
Dutch24V 0 Posted October 20, 2009 As Ian says the 2.8 expands quite a bit on flooring the throttle from idle, but it doesn't collapse? Dutch Quote Share this post Link to post Share on other sites
tribetype40 0 Posted October 30, 2009 Any update on this....? Quote Share this post Link to post Share on other sites
herisites 0 Posted October 30, 2009 Any update on this....? No nothing yet mate, just been driving it. I'm skint at the min so haven't got round to doing anything. Should hopefully get it sorted soon though. Quote Share this post Link to post Share on other sites
VR6Joni 0 Posted November 13, 2009 Hi mate, any R32 progress? Also did you contact Rotrex to see if spares are available? Quote Share this post Link to post Share on other sites
CoxyLaad 0 Posted November 15, 2009 Hey dude, I dare say i know exactly what is wrong with your engine. I have bought an Audi A3 3.2 dsg, and it exhibits the same characteristics. To check that its the same problem as mine put the car in neutral and try and hold the revs at 2000rpm, if its the same issue as mine it will be impossible to hold it at that rpm. basically the fault is with the rear sprocket locking pin, it wears its locating hole, and allows the exhaust cam to sit in a more retard resting position than it should, making the exhaust valves stay open fractionally after the inlet valves have started opening- this is good at high rpm, as the vaccuum pulls the mixture through, but at low rpm where cylinder fill is an issue, then unburnt mixture will just be pouring out the exhaust manifold. the net effect is rough low to mid rpm running, and poor mpgs. I thank you ;) and yes the engine on my new audi that i bought because i was tired of working on cars, is in a million pieces on my garage floor lol the irony is not funny! Quote Share this post Link to post Share on other sites
Kevin Bacon 5 Posted November 16, 2009 That be a tasty bunch of info there Mr Laaad, well done :salute: :D I'd be surprised (or would I?) if Rob's very young engine has that problem though, but I have heard of several issues with the R32 relating to it's cam / chain gear though :? 12V Turbo. It's the only way. Deep down you know simple = better :lol: Quote Share this post Link to post Share on other sites
herisites 0 Posted November 16, 2009 Wow cheers for the Ian! That gives me something to look in to at least. How hard/easy/expensive is that to fix? Quote Share this post Link to post Share on other sites
CoxyLaad 0 Posted November 17, 2009 Inlet off, rocker cover off, undo the bolt remove sprocket, fit new sprocket. sounds easy but its not lol front panel will have to come off to get the inlet off, and so it goes on. Not a major job all things considered. How many miles does your engine have on it? I am writing a letter to audi, as this is a major design flaw. try and hold the revs at 2000rpm in neutral and you will see if its the same problem. the sprocket is 300 quid from audi, and you will need a new stretch bolt with it. Quote Share this post Link to post Share on other sites
VR6Joni 0 Posted November 17, 2009 the sprocket is 300 quid from audi, and you will need a new stretch bolt with it. :epicfail: Holy Schiite, WTF is it made of? Gold! Quote Share this post Link to post Share on other sites
Toad 0 Posted November 17, 2009 the sprocket is 300 quid from audi, and you will need a new stretch bolt with it. :epicfail: Holy Schiite, WTF is it made of? Gold! That might be the problem. Far too soft... :lol: Quote Share this post Link to post Share on other sites
The_Dude 0 Posted November 17, 2009 the sprocket is 300 quid from audi, and you will need a new stretch bolt with it. :epicfail: Holy Schiite, WTF is it made of? Gold! That might be the problem. Far too soft... :lol: I heard it was Leprechaun leg bone. Quote Share this post Link to post Share on other sites
Kevin Bacon 5 Posted November 17, 2009 I am writing a letter to audi, as this is a major design flaw. Have a word with Pat McCrotch as he works for Audi. There is bound to be certain hoops you have to jump through in order to get a part redesigned for an engine that's "end of life". Quote Share this post Link to post Share on other sites
herisites 0 Posted November 17, 2009 Inlet off, rocker cover off, undo the bolt remove sprocket, fit new sprocket. sounds easy but its not lol front panel will have to come off to get the inlet off, and so it goes on. Not a major job all things considered. How many miles does your engine have on it? I am writing a letter to audi, as this is a major design flaw. try and hold the revs at 2000rpm in neutral and you will see if its the same problem. the sprocket is 300 quid from audi, and you will need a new stretch bolt with it. :pale: I was hoping it would be a bit less than that! My engine has done around 7k now (supposedly!). I will have to check if I can hold the revs at 2k rpm in neutral, I think it can tbh but I'll check anyway. Quote Share this post Link to post Share on other sites
CoxyLaad 0 Posted November 17, 2009 you an me both!!! its cost me a fortune so far this car lol Quote Share this post Link to post Share on other sites
CoxyLaad 0 Posted November 19, 2009 ignore that last post - the new part is the same as the old one lol what a weird piece of design. that slog in the locked cam sprocket basically means the cam will not time up properly according to the guide. got to be right though. least you dont have to spend a fortune on a sprocket now. Quote Share this post Link to post Share on other sites
herisites 0 Posted November 19, 2009 ignore that last post - the new part is the same as the old one lol what a weird piece of design. that slog in the locked cam sprocket basically means the cam will not time up properly according to the guide. got to be right though. least you dont have to spend a fortune on a sprocket now. Oh right! So what actually needs replacing then? Any pics of said problem on yours? Quote Share this post Link to post Share on other sites
CoxyLaad 0 Posted November 19, 2009 well i have done all my chains, there was definate stretch evident, so I have basically eliminated all possible problems with timing. only thing left to try now, are coils, and another ecu! Quote Share this post Link to post Share on other sites
pete_griff 0 Posted November 19, 2009 well i have done all my chains, there was definate stretch evident, so I have basically eliminated all possible problems with timing. only thing left to try now, are coils, and another ecu! oh the joys of working on broken cars!!! :bonk: sorry to hear the new ownership's not going too smoothly for you Ian, at least you'll know you won't have the revisit that area for a long time once you've got it sorted... Quote Share this post Link to post Share on other sites