tango Posted May 10, 2004 Share Posted May 10, 2004 Hi guys, I think I fitted on between the vsv to actuator, Is that wrong, or where is from the turbo to wastage? thanks. Quote Link to comment Share on other sites More sharing options...
tango Posted May 10, 2004 Share Posted May 10, 2004 Hi guys, Thanks for remind me about the pipes, I think I put it in the wrong pipe, right one should be between the turbo and actuaor. thanks. I be try it tonight. Quote Link to comment Share on other sites More sharing options...
hadyn Posted March 23, 2005 Share Posted March 23, 2005 any chance of a pic where this should go as im intereste in fitting a dawes device (ball bearing) manual boost controller Quote Link to comment Share on other sites More sharing options...
hadyn Posted March 23, 2005 Share Posted March 23, 2005 Final question, the valves are ok to use with autos arent they?? Quote Link to comment Share on other sites More sharing options...
tDR Posted March 23, 2005 Share Posted March 23, 2005 Final question, the valves are ok to use with autos arent they?? Yes, of course. Quote Link to comment Share on other sites More sharing options...
250horses Posted March 23, 2005 Share Posted March 23, 2005 whhhooooooohooooooooo.... Boost all the way :-) Me happy again... Please can you post a pic or diagram - I dont know what pipe to plug my MBC into. Ian C provided some really good TT hose piccies. Is the hose on one of these piccies ? Quote Link to comment Share on other sites More sharing options...
Suprasteve Posted March 24, 2005 Share Posted March 24, 2005 Please can you post a pic or diagram - I dont know what pipe to plug my MBC into. Ian C provided some really good TT hose piccies. Is the hose on one of these piccies ? hope this helps:- I've just fitted this MBC to my standard Jspec:- http://cgi.ebay.co.uk/ws/eBayISAPI.dll?ViewItem&rd=1&item=7960792764&ssPageName=STRK:MEWN:IT If you look between the fan and the front of the engine on the left hand side you'll see the pipes shown in the previous picture by "Supra TT myster". This picture shows Hose 2 (the one on the right) which has been cut and a T bar attached - ignore this as you'll be putting your MBC there instead (unless you want it routed into your dashboard) I come across a problem with my MBC, even with the screw fully tightened there was no change in boost still at 0.6 bar. Out of curiosity i tried it without the pipe on (very stupid i know) and i hit fuel cut in 3rd at 1.2 bar so i come to the conclusion even with the screw fully tightened it was still restricting the air flow so i used a very small drill bit and made the hole larger. This done the job as i could now adjust the screw so that boost settled on 1.0 bar. Quote Link to comment Share on other sites More sharing options...
hadyn Posted March 24, 2005 Share Posted March 24, 2005 did the turbo feel more responsive/quicker spool up after fitting the ball and spring type valve steve? Quote Link to comment Share on other sites More sharing options...
Suprasteve Posted March 24, 2005 Share Posted March 24, 2005 yes it does but nothing major. You can certainly hear the whistle of the turbos more now and the tone of the exhaust has changed. It did fix another problem i had tho - before if i dropped down from say 4th gear to 2nd and if the revs stayed above 4,000 rpm, sometimes the #2 turbo didn't spool up at all - now i don't have that problem so overtaking slow vehicles down country lane is far safer. Quote Link to comment Share on other sites More sharing options...
250horses Posted March 24, 2005 Share Posted March 24, 2005 hope this helps:- If you look between the fan and the front of the engine on the left hand side you'll see the pipes shown in the previous picture Thanks for that steve, found hose 2. Did you simply plug the mbc both ends into hose 2? Quote Link to comment Share on other sites More sharing options...
Suprasteve Posted March 24, 2005 Share Posted March 24, 2005 yep - either cut the hose in half and stick the MBC in the middle or unplug one end stick the MBC in the pipe and add a new bit of pipe on the other end. Find a big empty bit of road (you're be going silly speeds whilst looking at the gauge not the road!) you'll need to pull over at each end and adjust it. They say 3rd gear is the one use for setting it up but i found 4th best. when testing it remember things get fecking hot down there and turn the engine off first as the fan hurts when you bash your fingers on it !!! (take it from me) Quote Link to comment Share on other sites More sharing options...
ardasaliah Posted March 24, 2005 Share Posted March 24, 2005 http://www.mkivsupra.net/vbb/attachment.php?attachmentid=13234 Hi, see where the red arrow is pointing that’s the hose that you need to connect the bleed valve to. Get your self some hose- fuel hose is good. A few clips to hold the hoses is place. Take the hose of the wastgate and connect it to the bleeder. Attached a 2 inches hose to the other side of the bleeder- the attached the end of that hose back to the wastgate. When the bleeder is closed you have a stock set up. As you open the valve the boost will rise Quote Link to comment Share on other sites More sharing options...
250horses Posted March 24, 2005 Share Posted March 24, 2005 yep - either cut the hose in half and stick the MBC in the middle or unplug one end stick the MBC in the pipe and add a new bit of pipe on the other end. Find a big empty bit of road (you're be going silly speeds whilst looking at the gauge not the road!) you'll need to pull over at each end and adjust it. They say 3rd gear is the one use for setting it up but i found 4th best. when testing it remember things get fecking hot down there and turn the engine off first as the fan hurts when you bash your fingers on it !!! (take it from me) thanks steve - done it - youre right 4th gear is best - I can get a max of 0.9 bar in the warm weather cheers for the advice Quote Link to comment Share on other sites More sharing options...
hadyn Posted March 24, 2005 Share Posted March 24, 2005 so what did your boost increase from and to 250horses?? 0.7-0.9? did you have to drill the valve out a bit? Quote Link to comment Share on other sites More sharing options...
250horses Posted March 24, 2005 Share Posted March 24, 2005 In the cold i was getting 1 bar (decat pipe) Recent warm weather went down to 0.8 bar Fitted the MBC and it went up to 0.9 bar fully maxed Then I read Suprasteves comments on making the hole bigger. So I did, and got out my trusty Black & Decker. Whoopie presto, 1.0 bar most of the time with a short max at 1.1 bar in 5th SUPRA STEVE IS A GENIUS ardasaliah thanks for your pic - very helpful mate footnote to other attempters: The end of MBC with the hole goes to the wastegate end (and not the other way round as I found out ) Quote Link to comment Share on other sites More sharing options...
carl0s Posted March 24, 2005 Share Posted March 24, 2005 hmmm. is that all? my uk spec is standard, other than 3" full decat, and I hit ~14 psi. Max ever (spike) has been 14.7psi, most common is 13.7psi. don't ya wanna go higher? Will these MBC's not allow you to? Quote Link to comment Share on other sites More sharing options...
250horses Posted March 24, 2005 Share Posted March 24, 2005 hmmm. is that all? my uk spec is standard, other than 3" full decat, and I hit ~14 psi. Max ever (spike) has been 14.7psi, most common is 13.7psi. don't ya wanna go higher? Will these MBC's not allow you to? Ive only got the rear cat out. If you widened the MBC hole you would get more boost but 1.0 bar in this temp is a safe bet. In the cold it would go upto 1.4. (As my car pre-MBC lost 0.4 bar from the freezing days we had to when the weather got warmer; I assume that the MBC'd car will gain 0.4 bar in the freezing cold) Disadvantage of the MBC is that you would then have to open up the bonnet to wind down boost on freezing days to a safe J Spec Ceramic Stock 1.2 bar. 1.0 BAR IS 14.5 PSI 1.2 BAR IS 17.4 PSI Quote Link to comment Share on other sites More sharing options...
carl0s Posted March 24, 2005 Share Posted March 24, 2005 oh ok it's just I had always thought that with a boost controller you could raise the boost to anything you wanted - even dangerous levels. Guess not Quote Link to comment Share on other sites More sharing options...
hadyn Posted March 25, 2005 Share Posted March 25, 2005 this is the sucker i've bought off ebay: http://cgi.ebay.co.uk/ws/eBayISAPI.dll?ViewItem&rd=1&item=7962557801&ssPageName=STRK:MEWN:IT Quote Link to comment Share on other sites More sharing options...
hadyn Posted March 31, 2005 Share Posted March 31, 2005 Right got it today and fitted it, just turned the screw a quarter in and I was getting 1.05 bar!! Car felt very responsive and the turbos seemed to come on better. The big issue was that the car felt like it was hesitating or jerky once it peaked at 1 bar ish?? Is this early sign of fuel cut, restriction caused by both cats or is it the fuel pump not up to the job?? Anyway I then turned the screw anti-clockwise(out)so it was barely in the valve itself. Went out for another run and got 1.2bar!!!!! eeek!! Car felt again jerky over 1bar, but im left wondering whats happened to the fuel cut??I thought turning the screw out/anti-clockwise would decrease the boost not increase it?? Could the large levels of boost be down to the diameter of piping im using to plumb it into the acutator? Quote Link to comment Share on other sites More sharing options...
250horses Posted March 31, 2005 Share Posted March 31, 2005 sounds like a tempermental boost controller the one I got gave max boost when it was wound in fully the max boost is 1.0 bar so its a pretty safe MBC I was so pleased with it I got more in http://cgi.ebay.co.uk/ws/eBayISAPI.dll?ViewItem&rd=1&item=7964494497&ssPageName=STRK:MESE:IT Quote Link to comment Share on other sites More sharing options...
hadyn Posted March 31, 2005 Share Posted March 31, 2005 would it help if i compressed the spring a bit more?? it seems a little saggy - perhaps the bolt being wound out completely didnt put much pressure on the spring allowing a lot more boost to be run... 1 bar is great tho Quote Link to comment Share on other sites More sharing options...
250horses Posted March 31, 2005 Share Posted March 31, 2005 SEEMS A LOGICAL ASSUMPION - spring must need some tension I had the opposite problem and max at 1 bar which I am delighted with as I never plan to go above as poof tubbies = £1500 try extending the spring a little then re-inserting (not ideal) PM me if you want one of my MBCs as I would be interested to hear of the result Quote Link to comment Share on other sites More sharing options...
hadyn Posted March 31, 2005 Share Posted March 31, 2005 when you say extending the spring - do you mean pull it apart a bit then compres back into the valve?? or do you mean compress it with your two fingers? Quote Link to comment Share on other sites More sharing options...
250horses Posted March 31, 2005 Share Posted March 31, 2005 Extend It So That When It Goes Back In Its Taut Quote Link to comment Share on other sites More sharing options...
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