5e colin Posted June 26, 2016 Share Posted June 26, 2016 (edited) hey lads explain these nrs and letters on the housing is this housing a 6cm ??? where can i look up the meaning of these codes ??? the housing seams bigger then my last tfo??? Edited June 26, 2016 by 5e colin Quote Link to post Share on other sites
Androo26 Posted July 12, 2016 Share Posted July 12, 2016 Here is the 4cm left and 6cm right Comparison Its pretty obvious wich one is the smallest. Look at these 2 from this angle Quote Link to post Share on other sites
richardc9052 Posted July 12, 2016 Share Posted July 12, 2016 Kinda hope mines 6cm now lol Quote Link to post Share on other sites
5e colin Posted July 12, 2016 Author Share Posted July 12, 2016 the 1 from me on top is a 6cm and androos left 1 is a o4o now we know the foresters have both 4 and 6cm housing brrr whht do they make it so dificult i hope my new 1 that arrives is a 4cm housing want super fast spool we can swap housings if we need to richard Quote Link to post Share on other sites
richardc9052 Posted July 12, 2016 Share Posted July 12, 2016 Yeah but with the 4cm housing is it not causing high pressure throttling meaning the engine has to work harder just to get the exhaust gasses out? The 4cm looks way too small. I might be wrong.. need to see it in person. If mine is 4cm and I dont like the size then we can deffo swap ;) Quote Link to post Share on other sites
5e colin Posted July 12, 2016 Author Share Posted July 12, 2016 i had the 4 cm on my old 1 1.1bar at 3200rpm and just pulled harder and harder then acis opened pulled even harder so deffo not to small Quote Link to post Share on other sites
richardc9052 Posted July 12, 2016 Share Posted July 12, 2016 Hmm. And does the td04 comp wheel and housing fit without having to mod the core? Quote Link to post Share on other sites
5e colin Posted July 12, 2016 Author Share Posted July 12, 2016 just fit the tfo shaft then in the tdo4 core and bolt that core to tfo housing after you get it balanced now we are on the subject of that where do they balance these near us richard ?? Quote Link to post Share on other sites
richardc9052 Posted July 12, 2016 Share Posted July 12, 2016 Place in cork that does turbos. Cant remember the name though Quote Link to post Share on other sites
Androo26 Posted July 13, 2016 Share Posted July 13, 2016 I had this small turbine housing setup on both a hi comp 4E and now the 5E....... Such a good combo for a street car. The smaller 4cm TF035 cam from 99 model foresters. Thats where mine came from. Why not just get one of these and put the TDo4 front half on it ? I have a theory about the tiny TF exhaust wheel.... IT SUX....The out let to the dump pipe is all of 35mm. If you ask me thats where the restriction is. And on top of that the turbine wheel is taking up area too.Thats why I went to a TD04 core with the housing machined to suit..... Bolted straight up. The larger diameter of the TD04 Exhaust wheel makes better use of the exhaust gasses hitting it , it acts just like a longer lever. Mine made more boost on the same EBC setting than the small wheel. So I had to dial it back. TF Left VS TD right Exhaust wheels Quote Link to post Share on other sites
richardc9052 Posted July 13, 2016 Share Posted July 13, 2016 So the td04 front WILL bolt onto the tf?? Quote Link to post Share on other sites
5e colin Posted July 13, 2016 Author Share Posted July 13, 2016 (edited) i did back to back test with the tfo35hm and tdo4l-13t the full boost gap diferences is over 700rpm 1.1bar around 3200 vs 1bar ish 3900 ish i am having doubts if my older 1 was a 4cm it might of bean a 6cm as i have now will check in my thread @richard the tdo4 core will slot in tfo housing just needs machining larger for the td proppeler wich in my eyes beats the whole point of having a very fast spooling tfo at 1.1 to 1.2bar its a flyer Edited July 13, 2016 by 5e colin Quote Link to post Share on other sites
gorganl2000 Posted July 13, 2016 Share Posted July 13, 2016 i did back to back test with the tfo35hm and tdo4l-13t the full boost gap diferences is over 700rpm 1.1bar around 3200 vs 1bar ish 3900 ish i am having doubts if my older 1 was a 4cm it might of bean a 6cm as i have now will check in my thread @richard the tdo4 core will slot in tfo housing just needs machining larger for the td proppeler wich in my eyes beats the whole point of having a very fast spooling tfo at 1.1 to 1.2bar its a flyer i know we been through this a few treads now 5e colin...but somehow i think the td04l into the tf035 4cm housing should be the best combination for both worlds....in theory, worse case scenerio you hit 1.1bar at 3550 and have better power curve...and then you may still be able to tweek boost arrival to earlier rpm like the stock tf035 Quote Link to post Share on other sites
Androo26 Posted July 14, 2016 Share Posted July 14, 2016 Yeah but with the 4cm housing is it not causing high pressure throttling meaning the engine has to work harder just to get the exhaust gasses out?The 4cm looks way too small.I might be wrong.. need to see it in person. If mine is 4cm and I dont like the size then we can deffo swap ;) It looks small but remember that Subaru engineers speced this housing for a 2 litre engine. All I can say is try it and see for your self. Quote Link to post Share on other sites
5e colin Posted July 14, 2016 Author Share Posted July 14, 2016 (edited) so my new tfo35hm landed there i checked it and this 1 is a 6cm housing to 49135 - 04500 ( 4cm) 14T 49135 - 04600 14T 49135 - 04690 14T 49135 - 04700 ( 6cm ) confirmed 13T49135 - 04780 ( 6cm ) confirmed 13T Edited July 14, 2016 by 5e colin Quote Link to post Share on other sites
richardc9052 Posted July 14, 2016 Share Posted July 14, 2016 Ok mine is 6cm too then. Mine is 04700. Haven't recieved it yet as its being collected by courier today but ill update when I do Quote Link to post Share on other sites
TimD Posted July 14, 2016 Share Posted July 14, 2016 I have a 04600 on my shelf, what am I measuring. Quote Link to post Share on other sites
5e colin Posted July 14, 2016 Author Share Posted July 14, 2016 (edited) i would also like to find out between the 13t and 14t size if anyone has any links to it as im running into dead ends about that info take pictures of the exhaust housing where it connects to the v band timd Edited July 14, 2016 by 5e colin Quote Link to post Share on other sites
Androo26 Posted July 15, 2016 Share Posted July 15, 2016 (edited) Im sure Ive put this up before . Here is some data I collected after doing back to back testing. Same tune , same boost settings on EBC This was with the small TF035 Exhaust wheel and TD04 compressor and cover. 4EFE Here is a link to my TF VS TD write up. http://austarletclub.com/index.php?/topic/20297-tf035-4cm-vs-6cm-turbine-housing/?hl=%2Btf035+%2Btd04#entry203492 Edited July 15, 2016 by Androo26 Quote Link to post Share on other sites
TimD Posted July 15, 2016 Share Posted July 15, 2016 Any top tips on separating it?I undid the V clamp and it was stuck fast even a few blows with a rubber mallet wouldn't shift it! Quote Link to post Share on other sites
5e colin Posted July 15, 2016 Author Share Posted July 15, 2016 spray lots of wd40 an leave then metal hammer and usse common sense in the power you use but just tap it off take some pics of the exhaust housing ( nrs ) Quote Link to post Share on other sites
TimD Posted July 15, 2016 Share Posted July 15, 2016 Does it need separating for you to know what housing it is? I'll grab some pics and give it a bath in WD tonight. I need to get it sent away for a rebuild, or rebuild it myself, can you get kits? Quote Link to post Share on other sites
5e colin Posted July 15, 2016 Author Share Posted July 15, 2016 (edited) take a pic like i did of this angle so you see the writing on it and the lump on the housing like below just took this there to show you Edited July 15, 2016 by 5e colin Quote Link to post Share on other sites
TimD Posted July 15, 2016 Share Posted July 15, 2016 4 stamped into the casting Quote Link to post Share on other sites
5e colin Posted July 15, 2016 Author Share Posted July 15, 2016 ya man 4 cm housing so that a 49135-04500 you have there ?? did you drive this turbo whats spool like compared to us on the 6cm housings are you going to open it ?? if so measure the inducer and exducer of the compressor wheeel if you can ?? see if its same on us 6cm boys virtual credits added :) ha ha that housing does look A LOT narrower very curious about this performing at the stock limiter Quote Link to post Share on other sites
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