how to protect your turbo

Speedworks · April 11, 2010, 04:04:41 PM

Considering I have a GT40R turbo and a newly built enigine (which already blew 3 apex seal on me in the past) I would like to know if someone ever tried to fix something up to protect the turbo from apex seal bits going in.

something like a shield, mesh (just rambling up thoughts) inside the manifold or such...

kev-yorks · April 11, 2010, 04:32:39 PM

High EGT\'s would melt just about anything you placed in the manifold tbh. Just a reminder Garrett now recommend a in-line oil filter on the oil feed to all ball bearing turbo\'s.

Speedworks · April 11, 2010, 04:34:19 PM

I have an EGT sensor to be fitted in my manifold to check that.

Any link/info on that oil filter?

kev-yorks · April 11, 2010, 05:16:40 PM

http://cgi.ebay.co.uk/GARRETT-TURBO-for-INLINE-OIL-FILTER-4A-N-RE-USABLE_W0QQitemZ180489244794QQcmdZViewItemQQptZUK_CarsParts_Vehicles_CarParts_SM?hash=item2a05ff507a One example here but anything similar will do.

m1tch · April 11, 2010, 05:29:37 PM

I wouldn\'t run a ball bearing turbo in a rotary but hey lol what apex seals did you go for? Some of them like the ceramic ones just turn into dust, others just bend and don\'t shatter into shards etc

dthebuk · April 11, 2010, 10:21:42 PM

Quote from: m1tch;686472I wouldn\'t run a ball bearing turbo in a rotary

why\'s that then?

Speedworks · April 11, 2010, 10:27:37 PM

Because ball bearing turbo\'s are expensicve to rebuilt (you need to replace the whole cardridge when a wheel gets damaged) other than \'normal\' turbo\'s. They just need the wheel replaced and rebalanced. io words, pretty cheap.

I got mine at half of the normal retailprice (new) so I didn\'t deliberately go for a bb turbo...

I\'m running OEM 2piece 2m seals. not looking for the max power out of it, just about 400hp

SiH · April 12, 2010, 09:01:56 AM

Quote from: m1tch;686472I wouldn\'t run a ball bearing turbo in a rotary

t\'s a matter open for debate. Lots of people run BB turbo\'s - check the popularity of the 35r, for instance. It all depends on what you want from a turbo, and what you do to it (eg ceramic coating can have negative effects, etc)
I went for a BB turbo because I valued ultimate spool over anything else. Yes, it may not last quite as long, or be as durable as a BB, but with the miles I will do on it, that\'s not as relevant as it would be for some. Horses for courses.

Interesting stuff about the fitler inline with the turbo - got a link to the Garret gumph on that? Wish I\'d known before making up my tub line :o

Speedworks · April 12, 2010, 09:30:11 AM

I guess this filter can be be fitted with normal oil lines (which come with kits), no?

SiH · April 12, 2010, 09:46:08 AM

Well, you\'d have to have two lines and put it in the middle. My only concern would be how open to blockage it would be. Surely an oil filter would remove any potential particualates anyways?!

Speedworks · April 12, 2010, 10:20:39 AM

you can put the filter at the front plate adapter where the oil feed line begins.

But then again, if it gets blocked, how do you know?

Ed_RX7 · April 12, 2010, 04:50:20 PM

exactly...if it gets blocked ...the turbo will starve itsself of oil and your screwed......tbh you cant win......ask yourself this..if this was really needed it would come with a turbo kit from the factory.......i have never seen one come with a kit before!

the only way to protect your turbo is a good filter and a good map........things like egt sensors and afr meters should be the first things anyone should buy for a rotary IMO....

m1tch · April 16, 2010, 07:30:23 AM

Quote from: Ed_RX7;686750exactly...if it gets blocked ...the turbo will starve itsself of oil and your screwed......tbh you cant win......ask yourself this..if this was really needed it would come with a turbo kit from the factory.......i have never seen one come with a kit before!

the only way to protect your turbo is a good filter and a good map........things like egt sensors and afr meters should be the first things anyone should buy for a rotary IMO....

Plus I think if you run the oil in the car to the point where it has lumps of stuff floating in it, im pretty sure the OMP would have failed already :rollin

I do a oil and filter change every 3-6k miles

Speedworks · April 16, 2010, 08:32:11 AM

coming back to my initial question....

My main concern is to prevent apex seal bits destroying my BB turbo exhaust wheel if the engine blows. Is there any way? I have an EGT sensor kit, AFR kit etc.

On the other hand... any kind of \'filter\' in the exhaust manifold will be a loss of performance (flow, exhaust gas velocity etc)

You can never win, right? unless the engine never blows on you. you have to love rotaries for that :-)

HaywardRotary · April 16, 2010, 09:51:05 AM

Hi Martin,
simple really,use apex seals that dont break.
Regards
Carl