Benzsupra Posted October 4, 2008 Share Posted October 4, 2008 Hi everyone i've been noticing that although i have a standard BOV i get a loud whooshing noise with every gear change and it quite long and drawn out unless i'm gunning it then the noise sounds right. I put the louder noise down to the HKS induction thing that's on there but all i have to compare it with is the memory of my other Supe. That's what started me poking around and in doing so i found the following: Not 100% sure but i think this might be a true twin conversion but i thought i'd check before trying to reset anything back to normal. There also seems to be oil on the turbo heat sheild, it's dried like it was a while ago but i thought i'd throw a picture of it in as it's under the pipe i'm asking about. I also saw some oil like stuff on my induction cone, not loads but after looking around on here i saw that it could be bad or normal so i took it off there is a little oil puddle inside there. Not sure if the BOV is knackered or what. I've put a picture of that in below if anyone can tell me if to panic or not. Sorry for the long post but i wanted to be as precise as possible because i don't like messing around when it comes to the turbos! Thanks for reading. Ben Quote Link to comment Share on other sites More sharing options...
Benzsupra Posted October 6, 2008 Author Share Posted October 6, 2008 Anyone got any ideas on this, i'm going to the garage tomorrow and i don't want them to take me for a ride. I don't really know anything when it comes to the turbo setup so i'd be inclined to believe anyone in greasy overalls I have cleaned it all up and had a look under the outside of the filter after driving it around a bit and there is no new oil so i think this has been building up for a while if that helps at all. Oh and Quote Link to comment Share on other sites More sharing options...
bigbloodyturbo Posted October 6, 2008 Share Posted October 6, 2008 that looks like an egbv bypass mod thing. Not really to sure but i seem to remember something about it on mkiv.com and how you can bypass the egbv to get more boost from the 1st turbo at the expense of prespool for the 2nd turbo. Whatever it is it looks proper homebrew and i would put it back to the way its meant to be before something goes bang and a toyota technician gets to violate you. Quote Link to comment Share on other sites More sharing options...
wile e coyote Posted October 6, 2008 Share Posted October 6, 2008 Agree Quote Link to comment Share on other sites More sharing options...
Guest vazoosh Posted October 6, 2008 Share Posted October 6, 2008 Yeah as the above say, put the car back to standard and make sure whoever does it knows how to plumb it(you could do it yourself) I dont why the EBV vsv is being bypassed, as far as i know there is a vsv bypass mod but it doesnt bypass the EBV. Quote Link to comment Share on other sites More sharing options...
Robzki Posted October 6, 2008 Share Posted October 6, 2008 just for info. mine has been making a v slight blowing sound on steady turbo. just didn't sound right or have that much power. I disconnected the stock bov from the manifold and plugged manifold so that the bov would vent to atmosphere instead of recirculating. turned out the stock bov was absoutely knackered. on steady turbo it was leaking loads. sounded like an airline under the bonnet. if I 'gunned it' occasionally it would seal somehow and loads more power with no noise. except for the bus door noise as it activated Removed it all together now and the car is totally different to drive, full power, builds steady boost and holds it. its obviously always been like it. maybe worth checking the bov. as usual i obviously stand to be corrected Quote Link to comment Share on other sites More sharing options...
Robzki Posted October 6, 2008 Share Posted October 6, 2008 (edited) not sure on the whole ebv etc. haven't had to fix much else so I tend to limit myself to knowledge thru experience Edited October 6, 2008 by Robzki spannermode (see edit history) Quote Link to comment Share on other sites More sharing options...
Benzsupra Posted October 7, 2008 Author Share Posted October 7, 2008 Thanks for all the advice, is there any links about showing the correct way the pipes should be? I'll get it done asap and replace the pipes with nice colourful ones at the same time Quote Link to comment Share on other sites More sharing options...
Guest vazoosh Posted October 7, 2008 Share Posted October 7, 2008 Lol, its not a bad idea to change the hoses just dont get pink ones,ha ha Heres a link for you to plumb your car back to standard http://www.97supraturbo.com/Tech%20stuff/Under%20Hood%20Vacuum%20Lines%20forum.jpg Quote Link to comment Share on other sites More sharing options...
Benzsupra Posted October 7, 2008 Author Share Posted October 7, 2008 Thanks mate, already bought blue hoses in anticipation today so i'll fit them in tomorrow Thanks for the diagram. Quote Link to comment Share on other sites More sharing options...
RobSheffield Posted October 7, 2008 Share Posted October 7, 2008 What the hell happened to your air filter?! Quote Link to comment Share on other sites More sharing options...
Benzsupra Posted October 7, 2008 Author Share Posted October 7, 2008 Don't know, i assume it's not good then... I've cleaned it all out now and i'll keep a check on it to see how bad it actually is. The bloke who had it before me had messed with all the setup so i'm resetting it and i think my BOV is knackered but after looking at diagrams i'm not sure where it is! I'll get a new one as soon as i've figured it out. Hopefully the turbo's are ok. They seem to be boosting fine and i get no funny noises so i'm hoping it's just the BOV and the crappy way he had it set up. Wish i'd noticed it before i bought it really i just got the new supra excitement and things got overlooked Silly me!!! Quote Link to comment Share on other sites More sharing options...
rush Posted October 7, 2008 Share Posted October 7, 2008 hey Ben, did you try the guys at http://www.ukteknics.com ? get some free advice maybe. Quote Link to comment Share on other sites More sharing options...
dan4 Posted October 7, 2008 Share Posted October 7, 2008 first pic looks like the intake hose is leaking oily residue and maybe boost Quote Link to comment Share on other sites More sharing options...
Benzsupra Posted October 8, 2008 Author Share Posted October 8, 2008 rush hey Ben, did you try the guys at http://www.ukteknics.com ? get some free advice maybe. Haven't yet, i've got to see an air con bloke today but i'm gonna make an appointment to see them next week. I've just changed all the pipes round to the correct way, hopefully this'll tell me more. I'll keep updating here for future reference. I have also noticed a switch in the centre glove box as if it had an electronic TTC done??? Don't know why though... Quote Link to comment Share on other sites More sharing options...
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