if anyone is thinking off buying there exhaust dont bother 120hp down with valves closed please see dyno results
That looks like a fairly poor design on the inside of the box, no wonder there is such a power loss, and as the expert says excessive back pressure will result in higher EGT's and more stress on the engine.the expert that i took the exhaust to was worried that the heat was going back to the engine when the valves where closed so could result in engine damage over a long period
Not really as I wanted to get to the bottom off it why it was losing so much power and cut it open to see where the restrictions where.im happy if the message gets out and members don't waste there hard earned moneyErm??? Not fit for purpose? Surely you can take this further and get your money back??
No sorry my mistake I am not saying anything regarding any other system other than the one mentioned in the thread - What I mean is that any valve (or lets call it an obsticle) in the main gas flow has to affect power if it is manually controlled.
The Armytrix system shows that the valve is in the main gas flow... If it's closed manually - like a tap when the car is boosting or running under heavy load then that pressure runs back to the turbo and restricts throughput causing power loss and excess load on the components.
The heat was traced going back up the pipes which could cause engine damage.and Armytrix wasn't interested when this question was asked to them.
One thing i would like to say that policy was not there until i complained .That is now there get out clause but on the old system on Auto it closes the valves at 3000rpm again i told them this and they declined to answer.they have now altered the exhaust so you cannot get a dyno run with the valves closed very crafty if you ask meJust been doing some research into this exhaust as i love the sound of it,
When you ran the dyno, were you doing runs to read line with the values closed? Reason i ask is on their website it mentions you must not go above 4000rpm with the values closed.
The sound is very raspy and way to expensive Im now running a custom exhaust cost around £700 and sounds way better and fitment is perfect unlike the Armytrix