Jump to content
SAU Community

Recommended Posts

Hey everyone, I'm after an external wastegate!!

I'm looking into Precision Turbo Wastegate 46mm Black PW46? Anyone have used it on an rb at all? How good are they?

My car is a 32 with an rb20 n boost will be around 15-20psi!!

Any feedback would be appreciated!

Regards

Ali

Link to comment
https://www.sau.com.au/forums/topic/441909-precision-turbo-wastegate-46mm-pw46/
Share on other sites

They look the goods, can't say I have ever seen them before.

I use only Turbosmart currently, especially now they released the HP caps and springs. These precision ones seem to be copied off the turbosmart design anyway, so should be fine.

I'm looking into hypergear turbo! I'm in the middle of discussion with stao!!

Most likely would be this turbo with external wastegate setup: http://www.skylinesaustralia.com/forums/topic/261613-hypergear-hiflow-service-continued/page-481

Ok, I have externally gated a few of those housings. Just understand they are internal gate housings only, and you will need to weld a bung into the internal gate hole to block it.

Any decent gate will work fine, around that 45mm size, but don't just weld it on at a 90 degree, you need to help the exhaust flow out the gate any way you can. I use a steampipe bend and diegrind a nice merge from the flange like this. It helps force the exhaust into the gate.

Simply welding it on at a 90 causes the gate to almost flow backwards, like a spray gun. You won't have good boost control.

post-63525-0-54265400-1397532647_thumb.jpg

I was going to buy one of these gates from the US last year but was advised not to. They are only a little bit cheaper than a TiAL but apparently a lot lower quality.

Hope that helps.

go onto the DSM forum, these gates tend to jam up after several hundred heat cycles.. just pay a touch more and get a tried and tested turbosmart one... they're not much more and work as expected.

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now


  • Similar Content

  • Latest Posts

    • What copper washer do you guys use on the bleeder bolts? The existing one I have I had no idea where to find it in a local store, I did buy some online but that are only 1mm thick whereas my old one is 2mm+ thick and when I put the new washer out and squeeze the top radiator hose I can hear a bit of air but not with the old one. Does this matter? The new one doesn't leak, but the inner diameter is a bit loose whereas the old one threads on the bolt.
    • Howdy all, after being out a few weeks ago on a spirited drive in my GTR I have 2 issues that oddly have appeared at the same time. Whilst accelerating quickly through the gears all of a sudden i’ve lost power at the top of third gear (below redline around 6000rpm) for no obvious reason.    From that point onwards the car has been running rich on idle, won’t really rev under load without a ton of black smoke and the odd backfire, and dying as a pull up to a set of lights unless I keep the revs up around 1500rpm. In addition when shutting down the car that same night (I was 10 minutes from home) I noticed one of the turbos was significantly noisy on wind down when shutting off the engine. After letting the car cool down overnight it starts up fine, although once it gets to temp the revs start to creep up and down, the exhaust is darker than it should be and it also sounds like it’s running rich (fat note) I’ve put a new set of plugs in it - no change, the old plugs all seemed OK with two of them being somewhat richer/fueled up than the other 3 with 1 being borderline. I’ve smoked tested the intake system via the front of the Turbos, found a split vacuum hose going to the factory boost gauge sender, which I have since replaced.  Also found another leak on the gasket coming off the rear turbo outlet, have also replaced this. After fixing both of these leaks - still have the running rich issue. I’ve also tried another pair of AFM’s - no change here After pulling off the front turbo intake pipes, there is obvious shaft play in the front turbo, which now hisses loudly on light revvs although I can’t see why this would make the car run funny even under idle. I’m curious to know why it’s running rich before I potentially replace/rebuild turbos. The car is completely stock <50,000kms  other than an exhaust. Oil and coolant are all clear. I haven’t bothered with coil packs as it looks like they won’t be the issue due to condition of the plugs. Any help appreciated as I cry myself to sleep!
    • No probs at all. I used to love trying to dig up obscure info for those in need where possible going back 20+ years on SAU.  I did have another look and couldn't come up with any closer match. I'm leaning towards those skirts in your first pic are custom fitments, cut down/extended or from another car entirely and modded to fit an R34 sedan. I would've thought someone in Japan had them and taken a photo at some stage over the last 2 decades but there's nothing. Someone out there must know surely.
    • Welcome mate. Any pics? Even with a DE I'd be well happy if I had that as a 1st car. 
×
×
  • Create New...