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The mkiv Supra Owners Club

My boost piping - odd seup or what?


Sheefa

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All,

 

Please see pic 1 for my engine bay.

 

Ric a member from here, messaged me on MSN and mentioned his boost piping being set up differently. He had it in a similar way as mine before and experienced smoke on start up. Since going back to stock, he hasn't had any on startup or idle. See pic 2.

 

So, what setup do I have and is it esy to return this back to stock!?

 

Would like to mention tis to turbofit when I go back. ;)

 

Thanks,

 

Greg

Pretty Clean Engine Bay.jpg

DSCF09727.jpg

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Not sure whats goping on there Greg, on the passenger side it looks like someone has T'd in a boost reference point to the fpr feed - a major no-no!

 

Sorry can't help anymore, someone who knows the stock system well will be along shortly.

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Not sure whats goping on there Greg, on the passenger side it looks like someone has T'd in a boost reference point to the fpr feed - a major no-no!

 

You'll love mine then :D

 

I tee'd my MAP2 reference feed into that line because it's for it's internal 3.5bar MAP sensor. The stock MAP sensor is tee'd into this line as it's dampened (see posts by IanC on this subject) so I figured this was my best bet since my engine is now being driven by the MAP2 MAP sensor with the stock one redundant.

 

Not sure what other dampened feeds there are to use? In nearly all EBC manuals I've read they all say to use this line also, likely because it's the most reliable.

 

Cheers,

 

Brian.

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Just use one of the other feeds but stick a damper in bri, they're only a couple of quid :)

 

After Jakes blow up, I had the same line pop off on a track day . Nearly killed the engine. Since then I leave that FPR boost reference line well alone!

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Just use one of the other feeds but stick a damper in bri, they're only a couple of quid :)

 

Have never seen them for sale like the Toyota one on the inlet mani - I've only ever seen the inline filter thingies you get with an EBC.

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At the front left-hand side - the pipe with the T-piece in is simply the vacuum pipe from the charcoal cannister. For some reason, it has been changed over to the boost take-off, and the pressure for the rear actuator taken from that which is wrong! There should be a point on the inlet pipe to turbo 1 to connect the cannister vaccum pipe; see attached photo (the long blue silicone hose is the cannister hose)

April - £30 ebay dump valve fitted!.JPG

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Just had a thought Daryll - your idle issues...... are you using an aftermarket MAP sensor, if so what reference line did you use :eyebrows:

 

And with that......... we're well and truly off topic!

 

Hmm.... Its using the greddy pressure sensor but the stock MAP sensor is also in use. I'm sure it uses the stock map sesnor for closed loop.

 

I'll start another thread tomorrow for my issues with vids and data logs :D

 

Ermm, back on topic. Sorry Greg :imsorry:

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Ah thanks Bob and Homer - still very confused though. :(

 

Nobody has fiddled with the piping yet, but if it helps resolve some of the problems I've been having, I'd love it if somebody could help me out.

 

Bob - you're relatively near me matey - any chance you could travel over and I'll sort you out a free lunch and beer if you can help! The car is being trailored to Turbofit on Tuesday so may just wait til then, but would be great if someone else could help.

 

I kind of need a video on how to do what! ;)

 

Thanks,

 

Greg

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Hmm.... Its using the greddy pressure sensor but the stock MAP sensor is also in use. I'm sure it uses the stock map sesnor for closed loop.

 

I'll start another thread tomorrow for my issues with vids and data logs :D

 

Ermm, back on topic. Sorry Greg :imsorry:

 

Hijack away my friend, no worries :D

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