Is 0.90 Bar too much?

[GOT_BOOST]

Well this is the question I have been pondering over the last few hours. Is it too much to ask a CT26 to Run .90 Bar all the time? Apparantly the answer is yes. After blowing my second turbo in just under a month I am starting to think that if anyone is going to run .90 Bar ensure that your turbo is new or has been rebuilt. After a week of installing it, it had begun to smoke. I was not too concerned as the smoke was not really a blue, but more of a grey/black something that I would associate with some unplugged and open vacume lines. As time proceeded I had noticed similar symptoms to the old CT26. Symptons such as blowing smoke after boosting hard, crop dusting at slow speeds, blowing smoke between shifts.

Finally today after taking Jarrod (Malaria) for a rip in the boost mobile she let out her final breath of boost and that all too familiar sound of metal on metal squeeling returned. Fortunately I did not need to drive too much further to get back to the house. On a positive note, I really think the blowing smoke would work great as a defensive move on photo radar.

In speaking with one of my mechanic buddies whom has been doing mechanincs and body work for 35+ years he told me that turbo's are easy to rebuild. I am now going to learn the art of Turbo rebuilding. Now that I have two turbos that are in need of rebuilding, I think I will rebuild both of them and then sell one of them.

All though I had this dissapointment I did not let it spoil my fun and I proceeded to install my Apex-i S AFC II with my buddy Clay. Everything is wired in except I just need to cut the the two AFM signals and wire them into the S-AFC II and also connect a few more wires. But all the soldering has been done.

Mike Nikolai

[Supra_devil]

well that turbo had a fair bit of play to start with so its not like the boost did it all in.

is it possible you are having oiling issues that are causing this? just something you may want to inspect. oil lines clogged or worn and leaking etc.

i have heard of many people running 15 psi (1 bar) on a stock ct for a long time, i have heard of people running 18-19 for short periods too not sure if turbo went boom or they upgraded.

i would go get an hks and boost away.

[night_font]

i would also have to a gree with supra devil with the causings of this to happen. 0.9 bar is 13 psi and that is not enough to really cause any damage to a ct in under a month.

ALSO...very shitty to hear that again you have managed to destroy another ct26...poor turbo, poor turbo haha..fun, fun

[James Earl]

Mike,

I thought that you would need some specialized equipment to get the turbo within spec. Let me know what you come up with, anything is easy to rebuild if you have the tools needed.

My thoughts are rebuild the 2 CT26's and use that to finance a biger turbo. Twice the volume at half the PSI will give you the same results with out risk. And then you will have the room to got even higher with the RWHP.


I agree that the PSI should not be an issue for the stock turbpo as others have run 15 psi and had 50 shot of NOS and still no issue with the CT26.

[Deep_Blue]

I agree mightily!

You should give up on the CT-26 and maybe go 60-1 or something else. I've heard people run CT-26s on 15 psi forever and a day, and the odd occasion running 18 psi (at that level they don't do anything though). Hey everyone! Let's use peer pressure to make Mike upgrade his turbo.

Mike, all the cool kids are doing it!

Cheers,

Tim

[James Earl]

SP61GT or what evar that bolt in is.....cost is not too bad results will make ya poop your pants!

Cummon Mike! It will make you a better person....really!

[Deep_Blue]

I like the SP61GT but the SP63 is better in my opinion. Frankly, I don't think that Mike has the supporting mods for either yet. But a 60-1 is doable.

Mike, you would be stupid NOT to do this. It's only going to be like 1/40th of your gross earnings over the course of a year. What a pittance! If you have blown two CTs in a month, I think that a higher power is telling you something.

You know you want it!

Cheers,

Tim

[James Earl]

We don't need no stinking supporting mods...like what?

All he really needs is injectors & AFM I think.

[GOT_BOOST]

Hey guys,

WOW, Look what I have missed while I have been out slaving away for the club and making contacts! ha ha ha.


AS for the turbo oil lines, the lines are brand new. Well 1 year old. They are the JBL SS braided feed and return lines. I know that oil is being returned to the block as that is where I was having a leak. It was leaking at the connection to the block from the wide tube that returns to the block. t was a small drip then the drip became more of a continious drip while the car was running. Is it possable that alot of oil has leaked out, creating a low oil pressure situation and causing the turbo to starve for oil? I did notice that the oil pressure gauge was low on many of occasion then I just topped it up again.

As for the Turbo rebuild, I am looking at the new Supra Sport BOSS Stage V turbo rated for 700 hp. I will rebuild the turbos and then sell them to finance the new turbo project. As for the special machinery my buddy told me that I need some thing to take the measurments, then he can get replacement parts for it. He is telling me that this is easy to do as my turbo's look like they need new bushings (I think he said bushings) and seals. He told me the odd time you may need to send the housing out to be machined.

Mike Nikolai

[James Earl]

700 HP...at the crank? Or wheels...people never tell me that info....700 at the wheels........700 at the wheels......aarrrgghhh....drool.

Well if Mikee became a hard core turbo rebuilder then we would have to keep him...LOL

[Supra_devil]

well definetly fix the oil leak, if was on the return line then at least the turbo wasn't starved for oil as the return is gravity feed anyways so there is no pressure leak, if it was leaking from the feed then that could be bad.

i agree with what you are saying of rebuilding and selling them, i would like to see hows its done myself if possible, also if i can't get a turbo elsewhere what would be the expected cost for one?

[GOT_BOOST]

LOL, you guys are too funny!

Supra Devil, Yes I have fixed the return line. The car has not been leaking fluids for over a week now! Yay me!

Are you refering to the expected cost of my rebuild or a rebuild in general? I would like to see how my rebuild goes first before I start to sell them. I want to see if it will last more than a month! =) I am also not certan as to what I am looking at for parts that are needed.

Mike Nikolai

[hurricanehyshka]

shit Mike. man everybody on supraforums worns that 14psi on a stock ct-26 will blow. and for a turbo that was suppose to get you atleast running until you bought a new one. sorry to hear that now i feel bad.

[Trowa]

**** Mike. man everybody on supraforums worns that 14psi on a stock ct-26 will blow. and for a turbo that was suppose to get you atleast running until you bought a new one. sorry to hear that now i feel bad.

what they are saying on SF is not that CT26 will blow at 14 psi but it's just after passing that point your out of the efficiency range of the turbo...so increasing it from 14 psi to 17 psi will not get you as much of an increase as going from 7psi to 10 psi....you can run over 14 psi too it just wont be very efficient at it so not worth it....at least that's my understanding of what they ay on SF

Andriy

[Supra_devil]

Trowas right, most people don't push them that far on stock because the thermal effiecency quickly decreases, so after a point you can increase the boost and not gain, or even loss power.

the turbo itself can handle it though.

[GOT_BOOST]

**** Mike. man everybody on supraforums worns that 14psi on a stock ct-26 will blow. and for a turbo that was suppose to get you atleast running until you bought a new one. sorry to hear that now i feel bad.

Hi Hurricanehyshka,

Do not feel bad. I knew there was a little shaft play in the turbo when I installed it. I thought it would get me through till Sept, but you see I am addicted to boost. :lol: Looks like the turbo was not up to the challenge and I did push it harder than I should have. Anyways, I am going to rebuild it and sell it. :D

Mike Nikolai