Originally Posted by reido

As long as you get a true tial, you won't notice a difference between the 38 and 44. I've had both on my car with 4 different sized turbos (all full garrets) so far. I also have a backpressure sensor pumbed in and noticed no difference between the two. If the 44 really increased VE, backpressure would have dropped. The 44 will just take a a few more steps to get the wastegate duty feedback sorted out as when it opens it obviously vents more. If you're doing open road racing, which means you're moving to the mainland, then get 44mv as it will run cooler and will thus less prone to fail. There's no way that would be an issue for an autox or drag car though. I would just look for a good deal and use that to choose.

The EWG won't improve the VE as much as a good equal length header though, especially on a small turbine turbo like the 20g. A good equal length will small primaries will decrease spool and pick up power all over. I'm sure Jarrad would agree. But if you like the sound of the ewg, that's understandable so long as you're aware. I've spent my money on worst things.

Originally Posted by sigterm

That's awesome info that you have there. Also good to know about the cooling factor of it. I'm a little confused when you say that the 44 takes "a few more steps to get the wastegate duty feedback sorted out" What would those steps be?

thanks, hopefully not threadjacking here but it's good info!

Originally Posted by reido

As long as you get a true tial, you won't notice a difference between the 38 and 44. I've had both on my car with 4 different sized turbos (all full garrets) so far. I also have a backpressure sensor pumbed in and noticed no difference between the two. If the 44 really increased VE, backpressure would have dropped. The 44 will just take a a few more steps to get the wastegate duty feedback sorted out as when it opens it obviously vents more. If you're doing open road racing, which means you're moving to the mainland, then get 44mv as it will run cooler and will thus less prone to fail. There's no way that would be an issue for an autox or drag car though. I would just look for a good deal and use that to choose.

The EWG won't improve the VE as much as a good equal length header though, especially on a small turbine turbo like the 20g. A good equal length will small primaries will decrease spool and pick up power all over. I'm sure Jarrad would agree. But if you like the sound of the ewg, that's understandable so long as you're aware. I've spent my money on worst things.

Originally Posted by reido

This would only be if you're using an ebc and it depends on the turbo. It wouldn't be an issue with an mbc. Stock ecu uses turbo dynamics basically you give it a range to adapt to different conditions. The 44 requires a bit less because it controls boost so well that a small correction can make boost drop. It'd probably be fast on the dyno as I'm sure most tuners have maps ready to go to pull from. The 38 because of its smaller size isn't as sensitive to the corrections. We are talking five minutes if one is tuning in car. The mbc adapts on its own mechanically so it's the fastest.
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Originally Posted by dysfunctnl doll

Someone has an el header and mbc for sale hint hint whoops, stay on topic!


/end shameless self plug

Originally Posted by SUMATIC808

as i seen your name under the thread i was thinking, i bet shes gna offer me that EL header. hahaha.

Originally Posted by SUMATIC808

haha well maybe you should sell that flywheel to me and i can meet you to see the turbo also.

Originally Posted by SUMATIC808

"The 44 requires a bit less because it controls boost so well that a small correction can make boost drop." could you explain this a little bit more? i keep reading it over and over, hard to fully wrap my head around it. maybe its my lack of knowledge on ewg's. i understand the mbc vs ebc.