Nope. the 710N cant be changed as it has a diaphram. Even if you changed the spring though, the computer will not allow for more boost. you need to have it chipped. Even if you lt more boost in, you still need the fuel curve remaped to put in more fuel. By changing the DV, it may alow you to reach boost sooner and hold it to its peak longer but thats about it untill its chipped.

 

ahhh ok, so in essence- an aftermarket DV has no noticable benefits of a Stock bosch DV. apart from reaching boost slightly quicker and maintaining is slightly longer. sounds like id be better off saving the cash and buying more donuts.

 

ya pretty much man. untill you go to a BT, jsut stick with the 710N. Its cheap and it does a great job. Just make sure when you go to the dealership they order the 710N, not the 710P which is the newest model. the TT still uses the N because of its reliability. Save your money and buy a snub mount or something else that is cheap and helps.

 

dieverter valves do not allow you to achieve boost any quicker, upgraded valves do prevent boost from leaking back to the uncharged air path. DV's are a must if you plan on increasing from stock boost levels, as stock DV's usually begin leaking by at about 11-12psi, the 710n is a good budget solution, turbo spooll is based upon exhaust gas pressure, exhaust gas heat, wastegate, RPM. But never on your DV's

 

hey is that quote right???? im panning to get another diverter valve for performanve and whoosh sound is getting the air intake make a better sound?? and perfvormance???
know of a good plavce where i can get an intake???? for my car??? i just got it back with a new engine..

 

yes, that quote is right. BOV you will loose performance but get a much louder sound...an intake you may loose a few HP but you will do it safely and still make a sound

 

with the BOV you run into so many headaches and issues and performance losses that is not even worth trying, some guys have done it right and it works great, no argument there. But I personally think its a mistake because of the issues you run into, such as installing it wrong and runing unlimited boost and blowing the turbo etc. But everyone has their opinion

 

Here it is Jun and I am looking to stoake the coals on this BBQ... LOL

I think everyone agrees that either valve BOV or DV the purpose is to prevent the backup of pressure once the throttle is closed, if not prevented the pressure would stall the compressor..

With that said the difference is whether it is recirculated or dumped to atmospher, since we are dealing with a MAF system, the compressed air needs to be dumped into the intake behind the sensor so during the dump, the airflow through the MAF sensor stops or slows preventing an overly rich condition.

If it is just dumped overboard the software will need to compensate the fuel to prevent the rich condition, hence a custom chip or ECU would be required.

Any takers????

 

not touching that...
but i will point out there is a difference between bov and diverter valve. bov has the option to blow the pressure off, dv only has recirculate option. even forge diverter valve does not have the option to blow off to atmosphear. simply changing your diverter valve will not even get you a swoosh sound, you need the adapter(spacer) with the d/v then u have a combo which in turn becomes a bov.
upside to blowing pressure off is that the car can now have fresh cold air from the intake not hot recirculated air.

upgrading your d/v it is not an unsafe upgrade, adding the spacer to blow to atmosphear(making it a bov) is safe if done properly

 

The sensor is before the DV so it is very tricky to do the BOV properly. Sense the sensor is before it, it calculates the air that is going to go back in to the engine. The bov will release some of that air, so that creates a very rich mixture. So you will need to move the sensor, after the BOV or adjust the ECU numbers to adjust for the amount of air that will be lost. So all in al, it is very tricky to actually to get it working. So unless you really want it, i would not suggest doing it. IF you dont adjust, you will destroy your car very quickly.