So i've been thinking of keeping the CT and going 57 trim or 60-1, but i constantly here about the reliability of the 60-1, or should i say lack there of. I have heard that the shaft snaps under pretty high loads, are there any other issues with going to 60-1. So im thinking if i do go to 60-1, im going to have all of the rotating assembly cryo treated by these guys http://deepfreezecryo.com/home.htm I would think that doing that it could solve the shaft snapping problem.... What do you guys think???
60-1 reliability issues?
- Thread starter TheNewRed
- Start date
Im no turbo expert but from the discusions that i have read about the ct26/60-1, 80% of the people are gonna tell u to go with the 57 trim. I personally have a ct26/60-1 on my car and made 350rwhp on 11psi . I had it rebuilt by majestic turbos of waco, tx 11 months ago and no signs of shaft play so far. If u want something that is not as big as the 60-1 or small as the 57trim a 60 trim falls righ in between them two but it is all up to you . There is a dyno of a 57 trim making aroung 420 rwhp with race gas and there is Jbl that made 455rwhp and 490ft/lbs or torque with a 60 trim ct and stock 440s. The cryo treatment should make the shaft stronger just like it does pistons and every other part that is cryo treated...
I'll jump on the 57 trim bandwagon, because I didn't have much luck with a 60-1. Made it about 2000 miles.
wardog;923635 said:
lol i can make 330+ on a tune and my stock CT at 12PSI.....wish i didn't develop rod knock as of today though to prove it :cry::cry::cry::cry::cry::cry::cry::cry::cry:
BTW, stick with 57GT trim.....hands down....
wardog;923635 said:
Are you still running it at 11 psi?
I think a lot of the snapped CT's stem from running higher boost on a heavier wheel...
From reading about other's experience with the ct upgades the 57 trim was the best all around turbo. Meaning good torque curve and good hp with the best relibility while the 60-1 had more power overall but the power didnt outweigh the the reliability. When I say more power I say about 20-30hp while the 57 took nitrous and ran more 11's and lasted.
You also want to talk about clipping when upgrading, id say 10-12 degrees they have shown the best results without that much more lag.
You also want to talk about clipping when upgrading, id say 10-12 degrees they have shown the best results without that much more lag.
the shaft is the weak point, its too small for bigger wheels (60+mm). i have heard of cryo treating helping for longevity, but 2000 miles is less than one oil change i dont think that would help that much. my next question would be about the turbine housing and the small wastegate hole during shifts. I think an MR2 housing would do wonders for an upgraded ct since its has two holes for excess exhaust outlet oppossed to the one. Does this make since? if not let me know.
You're not going to get one because most of the people who have responded in this thread have NFI or clue about what they are talking about.
Im serious people. Stop the rumor mill(s). If you don't know, don't say it or post it.
The ct26 shaft (nose) is larger than the to4E / to4b shaft that the 60-1 came on straight from Garrett.
Stop spreading bullshit facts that you dont' know about.
What kills a ct26 60-1 is two things:
1.) Unbalanced assembly. This is because most balancing systems are a heinz based system. Trying to balance a ct26 turbine with this compressor wheel is a real shot in the dark as Heinz doesn't give you calibration codes for such a combination.
2.) The 60-1 wheel flows more air than the stock ct26 housing was designed for. This leads to compressor surge. Compressor surge = death.
Now stop posting ignorance!
Oh, and the TheNewRed, don't even think about cryotreating that shaft unless you want it to do some funky stuff....
STOP THIS HEARSAY BULLSHIT RIGHT NOW, IT WON'T BE TOLERATEDthebullshitbrigade said:
Im serious people. Stop the rumor mill(s). If you don't know, don't say it or post it.
The ct26 shaft (nose) is larger than the to4E / to4b shaft that the 60-1 came on straight from Garrett.
Stop spreading bullshit facts that you dont' know about.
What kills a ct26 60-1 is two things:
1.) Unbalanced assembly. This is because most balancing systems are a heinz based system. Trying to balance a ct26 turbine with this compressor wheel is a real shot in the dark as Heinz doesn't give you calibration codes for such a combination.
2.) The 60-1 wheel flows more air than the stock ct26 housing was designed for. This leads to compressor surge. Compressor surge = death.
Now stop posting ignorance!
Oh, and the TheNewRed, don't even think about cryotreating that shaft unless you want it to do some funky stuff....
No need to call me sir lol.
Youtube compressor surge and you'll understand.
I don't know of any one out there that has hard data as to when the 60-1 actually starts to surge or under what conditions it does surge.
The fact is - it does. ;-)
Those shafts are inconel and high carbon steel.
It was designed to rotate at over 100,000 rpm and withstand super heated gasses.
You don't want to mess with those mollecules (sp?)....
Youtube compressor surge and you'll understand.
I don't know of any one out there that has hard data as to when the 60-1 actually starts to surge or under what conditions it does surge.
The fact is - it does. ;-)
Those shafts are inconel and high carbon steel.
It was designed to rotate at over 100,000 rpm and withstand super heated gasses.
You don't want to mess with those mollecules (sp?)....
There is a reason people have NFI about fixing a 60-1. Virtually nobody bothers to fix it when they break, they just move on to a different turbo. When my 60-1 got death whine before my first oil change, I took it off, put it on the shelf, and bought a new Turbonetics unit.
I still have the 60-1, one day I might send it in to figure out what went wrong.
I still have the 60-1, one day I might send it in to figure out what went wrong.
As far as the cryo treating, it can't hurt. Theres a company in Nh a few hrs away from me that sells chainsaws. They treat the whole saw. Then guarentee it forever. Guarentee a chansaw that runs at 13000 rmps constantly. It must work.