addi Posted March 15, 2005 Share Posted March 15, 2005 ok .. ive tried searching and not come up with anything that helps so thought id ask .. im trying to find a map of the boost pipes in a jspec supe .. after putting new turbo's on im only getting 0.5 bar and no more ... must have put a pipe back in wrong so i need to know where they all go so i can check the instalation .. in particular the pipes at the front that come and go from the turbos and actuators and top metal pipes .. any help much appreciated regards craig Link to comment Share on other sites More sharing options...
colsoop Posted March 15, 2005 Share Posted March 15, 2005 Have a look here: at a very interesting and informative post by Ian c: http://www.mkivsupra.net/vbb/article.php?a=2 Link to comment Share on other sites More sharing options...
addi Posted March 15, 2005 Author Share Posted March 15, 2005 so where does this one go to? Link to comment Share on other sites More sharing options...
Ian C Posted March 15, 2005 Share Posted March 15, 2005 Here -Ian PS you can also try this link Link to comment Share on other sites More sharing options...
addi Posted March 15, 2005 Author Share Posted March 15, 2005 ok looks like all the hoses are in place .. the only one im not sure about is the barb at the top of the first turbo and the actuator ... does my greddy profec boost controler take a line off each of these into its control box? ive been out for a run with all teh hoses checked against the thread given and the car seems to be pulling all the way through the rev range however it is stil only attaining 0.5 bar ... how would i check my acctuators and vsv's? or is there anything else it could be? Link to comment Share on other sites More sharing options...
Tom Posted March 16, 2005 Share Posted March 16, 2005 try running it ttc and see if that helps, if this works then it is bound to be either 2 of the vsv's or the actuators, here's the link to the ttc instructions http://mkiv.supras.org.nz/articles/andy.htm the first time you do this it's a little tricky as the pipes you need to change arn't that easy to see. Find the egcv actuator and follow the line to the vsv, take this off, and the hose that is on the other part of the vsv needs to then go to the actuator. you might need some extra hosing as it is a stretch. the iacv hoses should be pretty simple to do. if this works then change back to sequential mode and rev the car in neutral, the iacv should operate from i'm guessing 2-3k and should fully open and stay open till the revs die down, rev again and watch the egcv actuator at 4k+ this should open up to and hold for a little while. if neither of these are working then it is likely the vsv's are busted, they only take a little time to change and I know tha Ian C is selling some if you want to contact him. give us an update! ps if ttc does work then change back as this is much safer for the turbo's also when you take the small hose off the iacv vsv it should hiss(another check as your pressure tank could be bad) another thing check that all the plug connecters to the vsv's are connected! Link to comment Share on other sites More sharing options...
addi Posted March 16, 2005 Author Share Posted March 16, 2005 i cant see teh actuators moving and dont get a hiss when taking pipes off ,,,, does this sound like a faulty pressure tank? if so how hard is it to replace? Link to comment Share on other sites More sharing options...
Tom Posted March 16, 2005 Share Posted March 16, 2005 hmmm this isnt good, are you with your car now? I'm sending my number to you, we can check stuff over the phone if you like? Link to comment Share on other sites More sharing options...
cashpoint Posted March 16, 2005 Share Posted March 16, 2005 i cant see teh actuators moving and dont get a hiss when taking pipes off ,,,, does this sound like a faulty pressure tank? if so how hard is it to replace? It's one of those jobs that easy but a right bitch due to the location of the pressure tank. like changing the oil filter but 10 times worse Link to comment Share on other sites More sharing options...
Tom Posted March 16, 2005 Share Posted March 16, 2005 Yeah that's what I've heard about the pressure tank, does look like bitch to get to! Craig, give us a call when you can, don't really wanna try this in the dark:) Link to comment Share on other sites More sharing options...
Ian C Posted March 16, 2005 Share Posted March 16, 2005 Don't forget the pressure tank will only cause a hiss if it's been pressurised. You'd have to go for a hoon and hit positive pressure to charge it up first. -Ian Link to comment Share on other sites More sharing options...
addi Posted March 16, 2005 Author Share Posted March 16, 2005 Yeah that's what I've heard about the pressure tank, does look like bitch to get to! Craig, give us a call when you can, don't really wanna try this in the dark:) stil at work bud with teh car at home .. wont be at home til late .. iyl bring it into work with me and give u a call tmro Link to comment Share on other sites More sharing options...
addi Posted March 16, 2005 Author Share Posted March 16, 2005 by the way .. if the pressure tank was faulty would i be able to get any boost? .. i cant see any of the actuators moving which is a concern Link to comment Share on other sites More sharing options...
Tom Posted March 16, 2005 Share Posted March 16, 2005 not much I would have thought, there should definately be pressure there, even if I've left my car for a few days it still holds pressure. tbh I don't think its that, normally the symptom of a bad pressure tank is when you drop down gears in the 2nd turbo's rev range and flooring it, basically if the 2nd doesnt kick in straight away but does a few seconds later then it's the pressure tank. Yeah just call anytime tommorow, that'll be fine, it could be something really simple to fix. how come you have new turbo's on the car? are you 100% that everything was ok on them? Link to comment Share on other sites More sharing options...
Tom Posted March 16, 2005 Share Posted March 16, 2005 Craig, I've taken a few pics of how the piping should look, if you want me to take more of other area's then I will do. Link to comment Share on other sites More sharing options...
addi Posted March 17, 2005 Author Share Posted March 17, 2005 oil seals went on old turbos hence why they got changed ... and yeh im pretty confident he turbos are fine Link to comment Share on other sites More sharing options...
Tom Posted March 17, 2005 Share Posted March 17, 2005 have you tried ttc yet? only take's a minute to do. Link to comment Share on other sites More sharing options...
addi Posted March 17, 2005 Author Share Posted March 17, 2005 yeh .. in ttc mode it stil only boosts to 0.5 Link to comment Share on other sites More sharing options...
Tom Posted March 17, 2005 Share Posted March 17, 2005 ok, after doing a run do you get a hissing noise when taking the a pipe of either of the 2 vsv's? if you still dont then it could well be the pressure tank, but I just have a feeling it's something else, have you tried running without your boost controller connected? Link to comment Share on other sites More sharing options...
addi Posted March 18, 2005 Author Share Posted March 18, 2005 yeh if i disconnectthe boost controler it boosts to 0.5 then drops off slowly, i get no hissing even after a good run .. how much is a pressure tank and is it a toyota only part? Link to comment Share on other sites More sharing options...
Tom Posted March 18, 2005 Share Posted March 18, 2005 tbh I'm not sure, might be worth putting a message in the wanted section and maybe checking out some breakers yards, I bet Ian C has got one! Link to comment Share on other sites More sharing options...
Ian C Posted March 18, 2005 Share Posted March 18, 2005 Actually I have -Ian Link to comment Share on other sites More sharing options...
The Hornet Posted March 18, 2005 Share Posted March 18, 2005 Slight hijack but, I have just read those two article's you did Ian, top stuff matey. I'm sure they will prove very helpful to many in the future! Hijack over.. Link to comment Share on other sites More sharing options...
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