Turbo boost problem.

[gavin c]

Hi everyone

I have a 92 UK spec FD and I’m having a bit of a problem with the 1st turbo.

The turbo seems to drop off the more aggressive you get with the throttle.  Also when the engine gets hot the power just seems to go completely.

I have a feeling this is primary turbo inlet (I think that’s what it is called) and it’s collapsing under the pressure.  Am I right in thinking this?

Dose anyone know what size or any where good I can get a replacement?
Thanks

[BlitzBoy]

I doubt its the inlet collapsing, probably a boost leak , do you have a boost gauge?

[gavin c]

yeah I do.
when the boost dose start to drop off the boost gauge drops as well.

[pearl_rex]

the rubber inlet pipes are prone to collapsing when their heated up, might be worth replacing it with a silicone elbow just for peace of mind if nothing else

[gavin c]

ok then ill try that.
do you know what size they need to be at all?
thanks

[pearl_rex]

sorry mate havent got a clue get the good old tape measure out

[gavin c]

Thanks, will have to do that.
Was being a bit lazy.

[gavin c]

Well I have sorted out the problem.
It was the air intake going to the turbos
They were so weak they just kept collapsing, that or the clips holding it on were rubbish. That and I found a tree in the air box, so that probably didn\'t help. lol

Thanks everyone

[pearl_rex]

haha a tree
 
glad you got it sorted mate good stuff other things to check are the cross over pipe and check and double check all the clips holding the boost pipes together as the standard clips are about as usefull as a chocolate iron!!!

[gavin c]

mmmmm chocolate iron.
I replaced all those standars clips as well.  They were rubbish.
Thanks

[rx7ben]

Well I have sorted out the problem.
It was the air intake going to the turbos
They were so weak they just kept collapsing, that or the clips holding it on were rubbish. That and I found a tree in the air box, so that probably didn\'t help. lol

Thanks everyone

 
What size is the inside diamater for these hoses. I think i have a simillar problem.
 
Cheers

[gavin c]

well you will probably laugh at me but I put these on mine.
 
http://cgi.ebay.co.uk/FD3S-MAZDA-RX7-92-01-COLD-AIR-INDUCTION-KIT-PIPE-FD-3S_W0QQitemZ220288422456QQcmdZViewItem?hash=item220288422456&_trkparms=72%3A1301%7C39%3A1%7C66%3A2%7C65%3A12%7C240%3A1318&_trksid=p3286.c0.m14
 
That seems to have fixed it.  I cant remember the size though.  ill have a look though.
I also replaced all the clips as well.

[rx7ben]

Got any pics with them fitted mate. Did you have standard induction pipes before you fitted them

[Nik da Greek]

Gavin, I wouldn\'t laugh at you, mate. I\'ve had those same pipes on mine for a couple of years and they\'ve been fine. Even the cheapy silicone couplers haven\'t degraded at all, which I was slightly worried about at first. Ben, here\'s a photo of mine in place, looks ok to me. Sometimes eBay tat isn\'t necessarily, well, tat! Only slight problem was the bottom, front turbo pipe didn\'t fit well when I had an ARC induction box because the curve wasn\'t acute enough in it. Dunno whether it\'d fit the standard airbox too well. Fits fine with separate filters, though, cos there\'s a bit more adjustability in mounting them. HTH
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[pearl_rex]

they were next on my list too! and i agree with the above, not ALL ebay specials are all that bad! 99% of them yes, but stuff like these induction pipes, you cant really pick fault with! plus they do look rather damn sexy mr greek i must admit!