Cupra Mk2 - Milltek TBE Vs Blueflame TBE

[Poverty]

If you listen closely you can hear waynes flat spot

 

[Cupra R]

is that the flat spot as he's just about level with the camera?

 

[Poverty]

is that the flat spot as he's just about level with the camera?

ye just slightly before hes level with the camera and things go a bit quieter and then it picks back up again. Hes coming round mine now that hes stage 2 plus finall, so might take a few more vids

I wish my k1 sounded like this!

http://www.youtube.com/watch?v=HqCeYngUS-g&feature=grec

 

[Cupra R]

ye just slightly before hes level with the camera and things go a bit quieter and then it picks back up again. Hes coming round mine now that hes stage 2 plus finall, so might take a few more vids

I wish my k1 sounded like this!

http://www.youtube.com/watch?v=HqCeYngUS-g&feature=grec

That does sound very nice indeed. Seat. that engine in the mk3 Leon please.

re the flat spot. now I understand why your so bothered about it mate I thought it was a bit of a hiccup hesitation. Thats more than a hiccup.

 

[Poverty]

That does sound very nice indeed. Seat. that engine in the mk3 Leon please.

re the flat spot. now I understand why your so bothered about it mate I thought it was a bit of a hiccup hesitation. Thats more than a hiccup.

the flat spot really does my nut in because its as if you let go off the accelerator for 2-3 seconds and then start to press it again. Makes me angry

 

[warren_cox]

the flat spot really does my nut in because its as if you let go off the accelerator for 2-3 seconds and then start to press it again. Makes me angry

Do you think it is heat related (all the boost / heat soak), engine going into self protection mode? I'm hoping WMI may cure it when I get it installed later in the year.

 

[Poverty]

Do you think it is heat related (all the boost / heat soak), engine going into self protection mode? I'm hoping WMI may cure it when I get it installed later in the year.

Im not sure what it is tbh, it seems if you reduce your settings it goes away for some, but then forge have recently released a improved actuator for these cars and they made some odd comments regarding flat spots and software. Dont know if revo maybe discussed the issues with forge? Revo have been pretty poor on this front in actually being helpful with the flat spot

"Actuators are not offered to address shortcomings with software.

They are made to address shortcomings with the OEM actuator that software does not compensate for.

Similarly to how a weak blow-off valve can leak on the pressure side of a turbocharged application, a weak wastegate can leak on the exhaust side.

The stock actuator has a soft spring in it (~ 4PSI) that doesn't effectively keep all of the exhaust gas spooling the turbo in the most efficient manner all the time. Too much exhaust gas pressure can force it open effectively causing an exhaust gas leak that limits spool and boost potential. If you figure that you are pumping 15-20 PSI into the intake side of the motor, you will have an equivalent amount of exhaust gas pressure coming out of the motor on the exhaust side.

This is a phenomenon that a lot of people experience without even realizing it. Under a high load condition, such as a wide open throttle pull in 4th, 5th, or 6th gear, boost will quickly climb to a peak value and immediately fall off and fluctuate wildly up and down and which point you will hear a fluttering effect from the engine as the ECU tries to keep actual boost in line with requested. This is far more prone to occur on a smaller turbo at higher boost levels (more air flowing through a smaller space) than a larger turbo at lower boost levels.

No amount of tuning or additional N75 duty cycle will prevent the wastehate from being blow open prematurely by exhaust gas. N75 duty cycle doesn't apply vacuum to the actuator to keep it closed. It only delays the time that pressure signal is held back until it is sent to open the actuator.

The only way to prevent this occurrence is to increase the spring tension of the actuator. Adjusting the stock unit will have a similar effect but to a lesser degree because your working with an altogether lower spring tension, and adjusting it will only limit its travel and flow potential. A replacement unit with a stiffer spring will help to spool the turbo in the most efficient manner possible by keeping all of the exhaust gas flowing over the impeller wheel."

 

[Cupra R]

Im not sure what it is tbh, it seems if you reduce your settings it goes away for some, but then forge have recently released a improved actuator for these cars and they made some odd comments regarding flat spots and software. Dont know if revo maybe discussed the issues with forge? Revo have been pretty poor on this front in actually being helpful with the flat spot

Reading this quote from forge makes me think this could be the sound I hear since fitting an ITG Filter.

I don't however have any form of flat spot.

Hmm.

 

[warren_cox]

I don't however have any form of flat spot.

Hmm.

Mine is intermittent, and usually when the car has got much warmer.

Wonder what effect a stronger actuator spring would have on turbo lifespan. Is this available yet?

 

[Cupra R]

Mine is intermittent, and usually when the car has got much warmer.

Wonder what effect a stronger actuator spring would have on turbo lifespan. Is this available yet?

I'm pretty sure it is already out mate.

Also shouldn't affect life span due to boost pressure being electronically controlled, rather than back in the day when you could put a few turns on your RS's actuator so it had to make more boost before it could open the wastegate to control itself.

What Forge are saying is a positive pressure gets behind the wastegate in the exhaust side and tries to open it against the weak spring giving an undesirable effect. Well, that's my take on it. Probably wrong lol.

With the nearly open exhaust's most are running I wouldn't of thought it could of made enough back pressure to try and open the wastegate. although I suppose the cat could aid this backlog???

Look, I'm rambling now, pretending to know what I'm on about lol. Sod it. gonna go out and and have a few beers and finish off a few more brain cells.

 

[Poverty]

yes its out already, but proceed with caution, hurdy has fitted one and it now dynos about 20hp less, and he does all his runs on the same dyno

 

[Poverty]

Reading this quote from forge makes me think this could be the sound I hear since fitting an ITG Filter.

I don't however have any form of flat spot.

Hmm.

my flat spot arrived the day I fitted my ITG.

 

[Cupraken]

i have the box on the back of my milltek and i am thinking of getting it cut out, its so heavy and it must restrict the flow massively, might get the cat removed aswell. but we will see. i have a feeling it might be a tad loud

I'd like to hear that, no rear box and no cat, especially if it's a non-res

 

[GtSport]

For me is to late to change something now because I already ordered the Blueflame TBE, and I'm still glad I did, but my friend who has a 2009 Skoda Octavia 2.0 TSi is selling his Blueflame TBE because it is too noisy at motorway speed.

 

[Cupra R]

Right, apologie's for taking so long but tonight got chance to get out and do a couple of video's but found them to be absolute cack, what a waste of time lol. But here they are, I'll delete then after a while, hopefully get some more done when it's less windy.

 

[GtSport]

It sounds nice, is it resonated?

 

[Cupra R]

It sounds nice, is it resonated?

There are two smallish silencers within the system. I think if you look closely at the pic's it just show's them.

 

[Cupra R]

This clip sound's a little better

 

[YIN]

I'll email him in the morning

Interesting about the mix n match - wonder if it would be possible to match the blueflame dp with a miltek cat back

That was my plan originally, and can be done, but its something I no longer have interest in. Dont want a milly on mine tbh.

Currently looking at changing my miltek down pipe for a Blueflame Decated down pipe
do these just mate up or do you need an adapter

 

[Poverty]

Currently looking at changing my miltek down pipe for a Blueflame Decated down pipe
do these just mate up or do you need an adapter

Blueflame supplied me and wayne with adaptors