Pulley Posted December 16, 2012 Share Posted December 16, 2012 ok, so im making up a custom body for my HKS 60 mm wastegate to have a water jacket im wondering.......do i run in series with the engines cooling or shall i run a dedicated elec pump and seperate radiator for this (and possibly turbo too) has anyone done this themselves before?, i know there are some other water cooled wastegates off the shelf now this will be on my NA-T Quote Link to comment Share on other sites More sharing options...
JamieP Posted December 16, 2012 Share Posted December 16, 2012 No offence, but why bother? Quote Link to comment Share on other sites More sharing options...
Pulley Posted December 16, 2012 Author Share Posted December 16, 2012 No offence, but why bother? wastegate temps can match that of turbo hotside, a watercooled turbo maintains a more stable operating temp and as such close fitting metal components that may expand at different rates work in harmony together some high end wastegates are now incorporating water cooling for the same reasons no offence taken, these are simply my own opinions and thoughts here and was asking for advice, opinions Quote Link to comment Share on other sites More sharing options...
JamieP Posted December 16, 2012 Share Posted December 16, 2012 I see, just never something I've seen as an issue. Quote Link to comment Share on other sites More sharing options...
Tricky-Ricky Posted December 16, 2012 Share Posted December 16, 2012 For a racing application i can see a point, but not for a road car. Quote Link to comment Share on other sites More sharing options...
Pulley Posted December 16, 2012 Author Share Posted December 16, 2012 For a racing application i can see a point, but not for a road car. fair point, but then, many of the members on this forum are running mods on their "road" cars that probably will never see a track, but are running in excess of 500 bhp ,huge turbos, plenums, oversized throttle bodies and dual wastegates i will probably be wasting my time making this for my NA-T as im only going to run 400 bhp and wont be pushing it hard untill ive got a getrag however i do have plans to eventually track my supra so this will eventually be a beneficial mod, in the same way that non water cooled turbos work just fine, but cooled ones work better when pushed hard Quote Link to comment Share on other sites More sharing options...
Digsy Posted December 17, 2012 Share Posted December 17, 2012 Water cooled turbos only cool the centre section containing the bearings and seals. The turbine housing and wastegate are not cooled directly (unless you have found one with a water jacket around the turbine). You say that a wastegate can get as hot as the turbo hot side, but they should be designed to work at those temps. Quote Link to comment Share on other sites More sharing options...
TheTurtleshead Posted December 17, 2012 Share Posted December 17, 2012 Why not just buy a Tial wastegate with a built in water jacket? That's if you are dead set on water cooling it. I wouldn't bother personally. Quote Link to comment Share on other sites More sharing options...
Gaz6002 Posted December 17, 2012 Share Posted December 17, 2012 Absolutely no point. If your wastegate needs cooling, you've bought the wrong wastegate. Quote Link to comment Share on other sites More sharing options...
garethr Posted December 17, 2012 Share Posted December 17, 2012 Seems like the diaphragm is the only part that could possibly be damaged by heat. If that's a concern wouldn't it be less hassle to use a piston-type wastegate? Quote Link to comment Share on other sites More sharing options...
Hartmann Posted December 17, 2012 Share Posted December 17, 2012 have the 44mm TIAL WG´s .. dont think i would bother eighter with the colling (and they have the cooling ports build in) Quote Link to comment Share on other sites More sharing options...
Pulley Posted December 17, 2012 Author Share Posted December 17, 2012 Ok lol, sounds like good advice to me, was just a project I was toying with and wanted people's opinions on I wonder why TIAL went to the trouble of developing them? Cheers for the input Quote Link to comment Share on other sites More sharing options...
Hartmann Posted December 17, 2012 Share Posted December 17, 2012 dont know mate ,. never heard any one have that issue with heat ? maybe Chris wilson or Paul have an answer (might be an issue in racing) Quote Link to comment Share on other sites More sharing options...
Chris Wilson Posted December 17, 2012 Share Posted December 17, 2012 You won't see water cooled gates on WRC cars, and they run some serious EGT's with their restricted turbos and radical cam and ignition timing and anti lag. What they do is have wastegates made of decent material. Water cooling passes the saving on not decent material across to the end user, who has to keep the thing alive by extra plumbing on mre load on a heavily worked engine cooling system. All in all, IMHO, a real gimmick and a bit of a con. WRC wastegates are about 3K each Sterling. I would just concentrate on getting the gate sizing right, supporting it to take the weight off the manifold, and changing it if it cracks or croaks. Quote Link to comment Share on other sites More sharing options...
Pulley Posted December 17, 2012 Author Share Posted December 17, 2012 You won't see water cooled gates on WRC cars, and they run some serious EGT's with their restricted turbos and radical cam and ignition timing and anti lag. What they do is have wastegates made of decent material. Water cooling passes the saving on not decent material across to the end user, who has to keep the thing alive by extra plumbing on mre load on a heavily worked engine cooling system. All in all, IMHO, a real gimmick and a bit of a con. WRC wastegates are about 3K each Sterling. I would just concentrate on getting the gate sizing right, supporting it to take the weight off the manifold, and changing it if it cracks or croaks. Cheers Chris, sounds like good sound advice, my 60mm HKS wastegate seems pretty good quality (atleast for my requirements) And my manifold has supporting brace to the block ,flexi exhaust sections and decent grade weld and stainless material Time will tell Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.