benefits of different size wastegates?
02-02-2005, 06:58 AM
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benefits of different size wastegates?
So what are the advantages / disadvantages of a 35 mm, 38mm, and 40 mm wastegate. I need to buy one for my turbo setup and i was wondering how i can determine which one would be right or does it even matter. Thanks in advance
DEF
DEF
02-02-2005, 07:05 AM
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Re: benefits of different size wastegates? (deftones0817)
Believe the bigger te size the more it will flow. Theory is that if your going to run with low boost a lot of the time and need to bleed of a lot of exhaust then you will want to run a bigger gate. But if your running higher boost and wont be beeding off a lot of exhaust then you can get away with a smaller gate.
Im assuming your talking about a Tial gate. The 35mm is not made anymore and was replaced with the 38mm.
Im assuming your talking about a Tial gate. The 35mm is not made anymore and was replaced with the 38mm.
02-02-2005, 07:07 AM
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Re: benefits of different size wastegates? (deftones0817)
The size in mm is the size of the WG orifice that leads out to your dumptube. I measured my 38mm WG and the one that goes to the manifold is 1.75" and the one leading to the dumptube is 1.5 which is 38mm (actually, 38mm = 1.49", but close neough).
The smaller WG will spike/creep more then the larger WG when you are running higher boost/power. It's the same concept as porting out or enlarging an internal WG to allow more exhaust gas to pass through so that it wont creep.
The smaller WG will spike/creep more then the larger WG when you are running higher boost/power. It's the same concept as porting out or enlarging an internal WG to allow more exhaust gas to pass through so that it wont creep.
02-02-2005, 07:09 AM
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Re: benefits of different size wastegates? (BlueShadow)
Yeah I just found a post that i was looking for. I guess Since I'm not going with alot of crazy boost Im going to go with a larger wg. Thanks for the responses.
02-02-2005, 07:13 AM
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Re: benefits of different size wastegates? (deftones0817)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by deftones0817 »</TD></TR><TR><TD CLASS="quote">Yeah I just found a post that i was looking for. I guess Since I'm not going with alot of crazy boost Im going to go with a larger wg. Thanks for the responses.</TD></TR></TABLE>
38mm will most for most applications, but for really high HP then the 40mm is probably better. I can remember the downside of running a large WG like 40mm and low boost/power. One of them might be space under the hood, but other then that I'm not sure what else is affected.
38mm will most for most applications, but for really high HP then the 40mm is probably better. I can remember the downside of running a large WG like 40mm and low boost/power. One of them might be space under the hood, but other then that I'm not sure what else is affected.
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