fullboost33

I should have been a bit more specific about the set up sorry, I’m going for an Aquamist kit and wiring the failsafe into my ecu etc. Running the standard 25 side entry plenum with the plazmaman pipe kit (135° pipe into plenum) and would position the nozzle shortly after the intercooler I'm thinking. Thanks for the link to your install tridentt150v I’ll check it out! Sounds like your single nozzle set up works perfectly

Hopefully a bit of a thread revival! About to purchase a WMI set up for my r33 gtst. Plan is to run 100% water rather than a mix. Was hoping to hear from guys running just a post intercooler nozzle and see if there was any feedback on distribution amongst cylinders? Hoping to get away with a post cooler nozzle rather than the added complexity of direct port - however if that’s the way to go then so be it!

Just wanted to come back with an update for all those who gave their input and advice, it’s very much appreciated. And of course Ryno for allowing the chat to happen! Since upsizing to a 50mm gate and plumbing it back in, I’m holding a minimum of around 17-18psi. Making pretty much bang on 300rwkw at that amount of boost which seems typical of that turbo, so that’s something. For the moment just enjoying the car while deciding if I will leave it that way, or move the gate to the turbine housing. Personally not a big fan of how that looks but would like to keep the boost a bit lower at times, like track days. In response to Ben the timing is around 18° I believe my tuner said. Thanks again everyone, really appreciate the input 👍

Thanks for the recommendation Ryno that was actually my next move was going run it up once with no gate at all. So I think that’s a job I’ll be doing very soon. I could be wrong as this is just my own theory after having a long think, But would a big and free flowing exhaust contribute in the sense that there is little restriction/back pressure? So rather than exhaust being able to divert out of the wastegate it is simply flowing through the turbine as this would be the path of least resistance? So in theory if I was to fit a restrictive exhaust the pressure in the manifold would be greater (as gasses can’t escape easily) and therefore have a better chance of flowing out the wastegate? Again this is all theory so anyone with opinions for or against don’t be shy to chime in!

No dramas at all, when you do get it on the dyno I’d love to see the results ? Looks like you’ve been busy with the upgrades, would be a great car to drive! I’m looking into an LS alternator upgrade at some stage also, I think it’s overkill for my car currently but I figured if I’m going to replace it with a new one I might as well future proof it, plus the genuine items are really good quality What type/size exhaust are you running Ryno? I’m starting to think maybe mine might be a contributor to my boost creep issues as it is very free flowing (3.5” dump, 100 cell venom cat, 3” cat back with one straight through muffler)

Looks great man! I’ve been wondering if you had changed your setup or anything. Would love to see some dyno graphs of the new set up if you have them!

Thanks very much mate I appreciate that, after seeing your awesome results I’m super keen to see how responsive I can make my ATR45

When I pulled the springs out of the gate before I re installed it I pushed the piston completely open to make sure like you said the gate was opening completely and that’s when it hit 14psi around 4000-5000rpm.. I would think maybe it needs a bigger wastegate but it’s got me baffled as Ryno is controlling boost beautiful on a smaller gate than mine. Major wtf.. Also out of respect for Ryno I’m happy to make a new thread rather than hijacking his, I just thought putting it here would show how well this manifold is obviously able to work on a similar set up (after receiving some feedback from people external to SAU that it must be too restrictive etc)

I could be wrong but to me it looks like a pretty good size/position of the wastegate pipe

Gate is plumbed straight from the compressor cover to the bottom port, top is venting As for timing I’m not sure I will contact my tuner Thanks for the reply mate

Hey guys, sorry for the major thread revival here... I’m trying to get my R33 GTST running properly but having a whole lot of trouble controlling boost creep. Thanks to Ryno and his thread I managed to get myself the exact same manifold to chase some crazy turbo response seen in here. Mine is also a standard stroke, standard cam 25det however my setup differs in that I have a Hypergear ATR45SAT, a 45mm hypergate, screamer and a 3.5” dump pipe and cat into a free flowing 3” cat back. Ryno seems to have a nice boost curve however mine wants to go crazy. With a 7psi spring it’s spiking to 25psi. Even with no springs in the gate at all it’s still seeing over 14psi of boost before it even hits 5000rpm. Was hoping you guys might be able to shed some light on what’s happening as I’m pretty stumped! I’m more familiar with LSs so this forum has been a gold mine of RB knowledge for me over the last couple of years, for that I thank all of you!