Slattery Gts-t Posted October 6, 2011 Share Posted October 6, 2011 (edited) Hoping someone can give me a bit of information here, I recently brought an R33 gtst and the bloke i got it off said it had a highflowed turbo but thats all he knew about that. The impeller is aluminium and being a series 2 it should be nylon so this leads me to believe it probably has been highflowed. My questions are is there any way to tell for sure it has been highflowed? How much boost is "safe" for a highflowed turbo? also where might it have been highflowed how many places actually do it ? Oh and the car has 3' pipes from turbo back, Pod and a big FMIC Edited October 6, 2011 by Slattery Gts-t Link to comment https://www.sau.com.au/forums/topic/379264-highflowed-turbo-help/ Share on other sites More sharing options...
zebra Posted October 6, 2011 Share Posted October 6, 2011 look for ID tags on the turbo, or pull the dump pipe off and compare what you see to a image search of standard turbos Link to comment https://www.sau.com.au/forums/topic/379264-highflowed-turbo-help/#findComment-6046952 Share on other sites More sharing options...
The Mafia Posted October 6, 2011 Share Posted October 6, 2011 Also, the compressors or turbines arent made of nylon at all, ever, on any turbo. Link to comment https://www.sau.com.au/forums/topic/379264-highflowed-turbo-help/#findComment-6046955 Share on other sites More sharing options...
R31Nismoid Posted October 6, 2011 Share Posted October 6, 2011 The age old - How long is a piece of string? There are 100s of places that could hi-flow a turbo, and to any specification. If it's a hi-flow, it is very possible it wont even have an ID tag - or that it's even correct. The only way to really know is the following: 1. Find out from previous owner who made it, and any reciept/info/specs 2. Pull the turbo off, measure both the front and rear wheels = 100% known specs. Unless you do this all you can do is wind boost into it, tune accordingly, see what happens. Link to comment https://www.sau.com.au/forums/topic/379264-highflowed-turbo-help/#findComment-6046999 Share on other sites More sharing options...
Slattery Gts-t Posted October 8, 2011 Author Share Posted October 8, 2011 Ok took the turbo off today It has an id tag from MTQ engine systems with a serial number and part number, also the impeller is 69MM across ( I took the impeller housing off to measure ), The inner diameter of the outlet tube is 52MM from memory Link to comment https://www.sau.com.au/forums/topic/379264-highflowed-turbo-help/#findComment-6050934 Share on other sites More sharing options...
pipster11 Posted October 9, 2011 Share Posted October 9, 2011 Also, the compressors or turbines arent made of nylon at all, ever, on any turbo. actually 25neo turbos have nylon compressor wheels and ceramic exhaust wheels nylon reduces the mass moment of inertia of the wheel = less lag Link to comment https://www.sau.com.au/forums/topic/379264-highflowed-turbo-help/#findComment-6052524 Share on other sites More sharing options...
The Mafia Posted October 9, 2011 Share Posted October 9, 2011 So you're saying the whole wheel is made of nylon? Link to comment https://www.sau.com.au/forums/topic/379264-highflowed-turbo-help/#findComment-6052745 Share on other sites More sharing options...
pipster11 Posted October 9, 2011 Share Posted October 9, 2011 So you're saying the whole wheel is made of nylon? pretty sure, only the front wheel tho i pulled my turbo off to change gaskets and the front wheel was black (not from dirt) Link to comment https://www.sau.com.au/forums/topic/379264-highflowed-turbo-help/#findComment-6052961 Share on other sites More sharing options...
The Mafia Posted October 9, 2011 Share Posted October 9, 2011 I think you better go back and do your homework. Something that spins at 100,000rpm cannot be made of nylon. Do you even know what sort of torture a turbo charger goes through? Link to comment https://www.sau.com.au/forums/topic/379264-highflowed-turbo-help/#findComment-6052989 Share on other sites More sharing options...
siksII Posted October 9, 2011 Share Posted October 9, 2011 The whole compressor wheel is made of some type of plastic/nylon in late r33/r34 gtt turbos. Link to comment https://www.sau.com.au/forums/topic/379264-highflowed-turbo-help/#findComment-6053071 Share on other sites More sharing options...
The Mafia Posted October 10, 2011 Share Posted October 10, 2011 It's not a hair dryer, or a electric supercharger. It's a turbo charger. They can reach speeds of up to 150,000 rpm,nare balanced to perfection, and have a lot of pressure applied to the compressor wheel due to physics. Do you think something made of plastic or nylon would be able to withstand this? Have the people crapping on about them being made of plastic even seen a real one? I guess the pistons inside your engine need to be light, so let's just make them out of plastic too? Link to comment https://www.sau.com.au/forums/topic/379264-highflowed-turbo-help/#findComment-6053412 Share on other sites More sharing options...
Dingus Posted October 10, 2011 Share Posted October 10, 2011 A quick search brings up multiple threads with people saying it is a nylon composite compressor wheel, but surely everyone must be wrong because you are clearly correct? Link to comment https://www.sau.com.au/forums/topic/379264-highflowed-turbo-help/#findComment-6053465 Share on other sites More sharing options...
The Mafia Posted October 10, 2011 Share Posted October 10, 2011 So you're just going from what the internet says, with nonform of confirmation, or have you actually touched one, and inspected one closely? You obviously haven't. You also obviously don't realise how much stress a compressor wheel has to endure. Link to comment https://www.sau.com.au/forums/topic/379264-highflowed-turbo-help/#findComment-6053525 Share on other sites More sharing options...
Room42 Posted October 10, 2011 Share Posted October 10, 2011 I have 2 r33 stockers at home and I promise you they are not metal. Link to comment https://www.sau.com.au/forums/topic/379264-highflowed-turbo-help/#findComment-6053569 Share on other sites More sharing options...
The Mafia Posted October 10, 2011 Share Posted October 10, 2011 The last few ive touched have been some sort of light weight alloy. Not plastic. Link to comment https://www.sau.com.au/forums/topic/379264-highflowed-turbo-help/#findComment-6053587 Share on other sites More sharing options...
siksII Posted October 10, 2011 Share Posted October 10, 2011 Mafia - they are really Nylon - i know it doesnt seem likely but I have swapped my stock turbo with another one plus seen a whole bunch of others at the wrecker first hand and in this case the internet is correct - take a look at one if you can and you will see that it is really some sort of black plastic. I will have my turbo off in around 1 week and will happily post a photo of the compressor. Link to comment https://www.sau.com.au/forums/topic/379264-highflowed-turbo-help/#findComment-6053589 Share on other sites More sharing options...
siksII Posted October 10, 2011 Share Posted October 10, 2011 If the ones you saw were metal then they were not from a late model r33 or R34. In fact I think very late model R34s switched back to metal again (cant remember for sure) Link to comment https://www.sau.com.au/forums/topic/379264-highflowed-turbo-help/#findComment-6053590 Share on other sites More sharing options...
fastjetjockey Posted October 10, 2011 Share Posted October 10, 2011 I'd take a chance with it then mate, if it's stamped and the diametres are bigger than factory. Other than that, get back onto the guy you bought it from and try and get some receipts or something. Re: Nylon Compressor wheel. I have a R34 with a Neo RB25 in it. It has a stock turbo on the side. Said stock turbo has a nylon synthetic polymer compressor wheel. It's okay for your mind to be blown every once in a while mate. The funny thing about the limitations of the stock turbo though, is the ceramic turbine wheel is what fails first under heat load. Go go fantastic plastic! Link to comment https://www.sau.com.au/forums/topic/379264-highflowed-turbo-help/#findComment-6053600 Share on other sites More sharing options...
GTScotT Posted October 10, 2011 Share Posted October 10, 2011 So you're just going from what the internet says, with nonform of confirmation, or have you actually touched one, and inspected one closely? You obviously haven't. You also obviously don't realise how much stress a compressor wheel has to endure. The funny thing about the limitations of the stock turbo though, is the ceramic turbine wheel is what fails first under heat load. Go go fantastic plastic! LMFAO. Just when you think you knew it all... FANTASTIC PLASTIC COMES TO COCK SLAP YOU IN THE FACE!! Link to comment https://www.sau.com.au/forums/topic/379264-highflowed-turbo-help/#findComment-6053812 Share on other sites More sharing options...
lilcrash Posted October 10, 2011 Share Posted October 10, 2011 Just a note, my series 2 rs4s turbo front wheel looks to be an metal looking compound where the chunks are missing, looks similar to cracked aluminum texture. I have it sitting on my bench without a front housing if someone wants a pic. It may be nylon, I'm not saying for sure what it is but to me personally it looks metalish. Link to comment https://www.sau.com.au/forums/topic/379264-highflowed-turbo-help/#findComment-6053860 Share on other sites More sharing options...
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