Mike B Posted May 11, 2009 Share Posted May 11, 2009 I just spoke to AET turbos ( I was buying a TPS sensor activated butterfly valve of a 4" exhaust) and asked them about turbos as the guy seemed very knowledgeable. He knew the turbo very well. I was told that the DBB cartridges cannot be repaired, but they can and he can do them. The 4088R failures are (apparently) due to the fact that Garrett use a Diesel grade of steel (cost cutting) on their divided exhaust housings, and when the turbo gets hot the central section (divided part) warps distorting the housing into the blades. They only need to touch for a second to cause meltdown, secondary failure and death! Other cause is using a divided manifold, single haousing and having a divided gasket melt and go through the blades. The blades themselves are apparently perfectly fine! So all you 4088R owners out there, start checking your housings!!! and if it does die you know where to fix them. Result! Quote Link to comment Share on other sites More sharing options...
Wez Posted May 11, 2009 Share Posted May 11, 2009 Interesting, most failures I heard of if not all of them have been GT4088 not GT4088R. Bhave and SteveL are running GT4088Rs sourced from Garrett and neither have failed to my knowledge, Steves gets hammered on track as does Bhaves who has had it installed for a long time now. Quote Link to comment Share on other sites More sharing options...
Mike B Posted May 11, 2009 Author Share Posted May 11, 2009 maybe they got lucky on expansion tolerences - or use different , or maybe this is not true, but it would explain why some are extremely stable (jay's one too) and some fail almost straight away on hard use...? Quote Link to comment Share on other sites More sharing options...
SteveR Posted May 11, 2009 Share Posted May 11, 2009 I too thought it was the 4088 that was at risk as, in a nutshell, it 'is off a diesel lorry', and the version with the R suffix was fit for purpose on a petrol car and thus wasn't a worry. Quote Link to comment Share on other sites More sharing options...
b_have Posted May 11, 2009 Share Posted May 11, 2009 Interesting, most failures I heard of if not all of them have been GT4088 not GT4088R. Bhave and SteveL are running GT4088Rs sourced from Garrett and neither have failed to my knowledge, Steves gets hammered on track as does Bhaves who has had it installed for a long time now. Mine is a precision housed Garrett GT4088 (nonR). Blades were mint at last inspection (610bhp/1.6BAR/7200 rev limit). Have an identical spare unit if anyone needs one Quote Link to comment Share on other sites More sharing options...
Tricky-Ricky Posted May 11, 2009 Share Posted May 11, 2009 Pretty much the same as mentioned here http://www.mkivsupra.net/vbb/showthread.php?t=185315 and I'm sure its been covered before, i asked Turbo Technics and thats pretty much the answer they gave me, they can also repair the DBB cores. The GT4088R runs exactly the same exhaust turbine as the non R, and its the same material as the rest of the Garret range. I'm glad to say i have the Precision Turbo .81A/R housing, mine has been fine for the last year, apart from a weak seal:) Quote Link to comment Share on other sites More sharing options...
Wez Posted May 11, 2009 Share Posted May 11, 2009 Where did these GT4088 with the PT .81A/R housings come from? Quote Link to comment Share on other sites More sharing options...
Alex Posted May 11, 2009 Share Posted May 11, 2009 Where did these GT4088 with the PT .81A/R housings come from? DAF Trucks according to the big arse stamp on them LOL. Quote Link to comment Share on other sites More sharing options...
b_have Posted May 11, 2009 Share Posted May 11, 2009 No DAF here There were some around like that (think Ryan had one). The precision ones seem good. Quote Link to comment Share on other sites More sharing options...
jevansio Posted May 11, 2009 Share Posted May 11, 2009 I've already gone through 1 GT4088R (precision housing) and the last time the current one was off it was starting to show the initial signs of the blade nibbling. Shame as I love the turbo, Quote Link to comment Share on other sites More sharing options...
Tricky-Ricky Posted May 11, 2009 Share Posted May 11, 2009 DAF Trucks according to the big arse stamp on them LOL. No Daf stamp on mine:p just Garrett and a Precision Turbo serial number. Quote Link to comment Share on other sites More sharing options...
Wez Posted May 11, 2009 Share Posted May 11, 2009 No DAF here There were some around like that (think Ryan had one). The precision ones seem good. Where did you source your turbo? I've already gone through 1 GT4088R (precision housing) and the last time the current one was off it was starting to show the initial signs of the blade nibbling. Shame as I love the turbo, Where did you source your turbo? Quote Link to comment Share on other sites More sharing options...
Tricky-Ricky Posted May 11, 2009 Share Posted May 11, 2009 I've already gone through 1 GT4088R (precision housing) and the last time the current one was off it was starting to show the initial signs of the blade nibbling. Shame as I love the turbo, Are you sure it was a PT housing|? some more info here. http://www.lextreme.com/forums/showthread.php?t=1995 Scroll to the bottom. Quote Link to comment Share on other sites More sharing options...
jevansio Posted May 11, 2009 Share Posted May 11, 2009 Both my turbos came direct from Precision, they've got precision cast into the housing Quote Link to comment Share on other sites More sharing options...
jevansio Posted May 11, 2009 Share Posted May 11, 2009 Some pics of my 1st turbo at installation time: And one showing the precision sticker Quote Link to comment Share on other sites More sharing options...
Tricky-Ricky Posted May 11, 2009 Share Posted May 11, 2009 Well all i can say is we might have another contender for the " JamieP Supra abuse award" then:p Quote Link to comment Share on other sites More sharing options...
Wez Posted May 11, 2009 Share Posted May 11, 2009 Some pics of my 1st turbo at installation time: http://www.mkivsupra.net/vbb/attachment.php?attachmentid=86550&stc=1&d=1232226400 http://www.mkivsupra.net/vbb/attachment.php?attachmentid=86551&stc=1&d=1232226400 And one showing the precision sticker http://www.mkivsupra.net/vbb/attachment.php?attachmentid=86582&stc=1&d=1232228885 Interesting that yours have failed this way as I thought it was only the cheaper units with DAF covers, hmmmm EDIT: yours are GT4088Rs arent they? Quote Link to comment Share on other sites More sharing options...
jevansio Posted May 11, 2009 Share Posted May 11, 2009 Interesting that yours have failed this way as I thought it was only the cheaper units with DAF covers, hmmmm EDIT: yours are GT4088Rs arent they? Yip, defo the DBB versions, Oh and the cartridge has the Honeywell Garrett plaque on too Quote Link to comment Share on other sites More sharing options...
mikeyb10supra Posted May 11, 2009 Share Posted May 11, 2009 interesting read Quote Link to comment Share on other sites More sharing options...
MarkR Posted May 11, 2009 Share Posted May 11, 2009 I just spoke to AET turbos ( I was buying a TPS sensor activated butterfly valve of a 4" exhaust) Mike, I'm also after one of these, but wasn't aware anyone did them. Did you get one? How much was it (if you don't mind me asking)? Also, how is it controlled? I was hoping to get my solaris to control it so that the car is quiet poodling around but mental if you drop the hammer. Quote Link to comment Share on other sites More sharing options...
Chris Wilson Posted May 11, 2009 Share Posted May 11, 2009 Sorry, repost Mike.... http://www.mkivsupra.net/vbb/showthread.php?t=165183&highlight=4088+resist Quote Link to comment Share on other sites More sharing options...
Mike B Posted May 11, 2009 Author Share Posted May 11, 2009 Sorry, repost Mike.... Bah, humbug... you post sounds a lot more technical too! lol My 4088R died on the same housing as Jay's, so maybe there are incompatabilities there too, something about them is just not working. My T67 is immaculate. Have to say though Garrett should at least take notice - it's bad form not to change them or give a warranty. Quote Link to comment Share on other sites More sharing options...
Wez Posted May 11, 2009 Share Posted May 11, 2009 Have to say though Garrett should at least take notice - it's bad form not to change them or give a warranty. I almost agree, but if only the core is Garrett and the problem is caused by non-garrett housings I can see why they wont. Quote Link to comment Share on other sites More sharing options...
Mike B Posted May 11, 2009 Author Share Posted May 11, 2009 Mike, I'm also after one of these, but wasn't aware anyone did them. Did you get one? How much was it (if you don't mind me asking)? Also, how is it controlled? I was hoping to get my solaris to control it so that the car is quiet poodling around but mental if you drop the hammer. It's the latest version of one of these; http://autospeed.com/cms/title_Butterfly-Effect/A_110902/article.html They are £750 from the company that took over the idea in Auz, but a very helpful chap called Kevin pointed me to AET turbos who were the only UK company to have any, and they sold me one for £350. Kevin convinced me that they were very good and fast reacting. The fact that they work on the TPS signal is quite impressive. He said there was no change in flow when dyno'd on and off. I'm getting old and my ears are starting to complain at the 80mph hell drone. Quote Link to comment Share on other sites More sharing options...
Guest gzaerojon Posted May 11, 2009 Share Posted May 11, 2009 some interesting reading a little worried about checking mine now.. Quote Link to comment Share on other sites More sharing options...
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