:::RHMT::: Real Home Made Turbo
General Category => Forced Induction => Topic started by: DSharp on March 11, 2017, 12:39:11 PM
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Turns out my old wastegate setup won't cut it with all my recent upgrades. Now the exhaust flows very well and the wastegate just will not keep up. I have a hy35 and a ramhorn manifold. I'm gonna cut up my collector and add a large pipe for a big gate. Question is how big do I go for? Go ahead and put a 60mm if it fits and be done with it? I want to be able to dump back in the down pipe and control boost without creep. Basically I don't want to have to fuck with this car much after this... I just want it to work. I got a awd dsm that needs to be built, and I don't think I'll care much about the honda once I get into that project.
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I don't see why a 38mm wastegate, if placed correctly, wouldn't be big enough.
How is the wastegate setup now?
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Decent size turbo making lots of flow at relatively low boost, harder to control than a standard honda civic setup for many reasons I won't go into at the moment. It's a standard ram horn design, nothing special there.
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Decent size turbo making lots of flow at relatively low boost, harder to control than a standard honda civic setup for many reasons I won't go into at the moment. It's a standard ram horn design, nothing special there.
Well, if it means anything. I ran an HY35 on a BP, top mount mani with a 44mm wastegate with no issues. I was running like 28lbs though. I could understand getting creep with a 4g63 and hy35 if your trying to run like 8-10 lbs. Bigger is probably better if that's the case. Ching chong 60mm
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The 38 used to work great when I had plenty of back pressure in the exhaust and a open dump
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VS racing 44mm gate should be enough. I didnt have issues with the hx35 and a 44mm gate.
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Im tempted just to jump to the biggest i can fit, im not trying to do this again. Really just doing it for the sound at this point, open dump sounds so rice
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(https://realhomemadeturbo.com/forum/proxy.php?request=http%3A%2F%2Fi51.photobucket.com%2Falbums%2Ff359%2Fdbsharp%2FMobile%2520Uploads%2F20160822_213644_zpszi6wolg8.jpg&hash=1c6f7d21dec8741313dedc2072f0f3462dcdd611) (http://s51.photobucket.com/user/dbsharp/media/Mobile%20Uploads/20160822_213644_zpszi6wolg8.jpg.html)
Might try a 44mm before i go hack up the manifold for as big dump tube. Then again i might just put a fork in it and enojy the car at 15 psi spiking to 18 psi boost cut at redline, as it is now. hell injectors are getting close to 80% as is, so there not much more I can get until id have to buy a bunch of parts anyways.
right now I taper my wastegae duty cycle down to 0 over the last 1,000 rpms or so and it still climbs to 18. Manifold favors the turbo and now the exhaust flows well... might just accept it and move on.
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New 44mm gate holds boost perfectly all the way to rev cut. I might try to tie it back into my exhaust again but with my luck it would make it start to creep.