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For the longest time I've hated the way my truck sounded at WOT simply due to having the wastegate dumped to atmo. I went to a local muffler shop and had this done. Sounds WAY better - actually sounds like a turbo now instead of an annoyingly loud hissing sound.
haha I loved how mine sounded vented to the atmosphere. Like a jet
a wastegate should never be merged into the exhaust as a 90*. With any airflow merger its always best to stay with direction of flow as best as possible.
Since the two pressure are at different rates they can cause turbulance and also effect back pressure. it can also cause boost creep
is it better to have the wastegate vented to atmosphere?
Not sure. I just plumbed the gate back into the exhaust pipe cuz I didn't like the way it sounded with the gate vented to atmo.Quote:
Originally Posted by gavin05
It does kinda look like that due to the camera orientation. Can't really tell from the pics, but it actually merges at a much lower angle. I know better than to do stuff like thisQuote:
Originally Posted by Quik
youll make more power with a WG vented to atmosphere but that isnt always the case for ppl. merging it around a 45* angle works the best
Is that because the pressures of the turbine and WG discharges don't have to fight each other? If so, it makes sense.Quote:
Originally Posted by Quik
That's what all the books say and in theory, it is best, and probably does work better in an ideal world, but in the actual world, I haven't seen it affect a turbo kit at all.Quote:
Originally Posted by Quik
I built the first few kits with an angled downpipe for the wg, then decided on a 90deg entry, same results on both kits and same back pressure on both kits.
Check out the single log kits that are around, no way is that wg in the ideal spot lol, being so far down and on only one side of the engine, on the crossover tube, but it does work and controls boost rather well.
I'm sure at an extreme power level it does make a difference.
look at this way, anything can work but what works more effeicent? if your going thru hassle of building something why not do it properly instead of having any later second guessing? ive seen it where it has created issues with back pressure where loss of power
with the position of WG on the crossover style setups. it may seem as its only truely venting that one side of motor however in a boosted application all tubing prior to turbo is at pressure. so youll have some pressure from the one bank backing up and exiting as well as the driver's bank [well say]. ideal? no but its hard to get WG ideal position every time. But merger can be hard to overcome as well but if you have the opportunity then might as well do it correctly.
or all else vent it to atmosphere, my last setup i ran a muffler specificially for the wastegate, this helped get rid of the awful noise and made it more of a jet setup
thats how mine is.i guess i need to change it??
I was going to put a turbo at the end of my exhaust just for the wastegate to atm.....wasn't even going to run the feed to the motor :lol: