ok guys, give me one last shot please. please read this and help a brother out.

[theciviceater89]

CT26/60-1 T04E Turbo clipped 10 degrees.


i understand the clipping, sorta. im not sure i grasp the 10 degress part, but i am assuming that you twist the turbine blades 10 degrees? so..what i am not NOT getting however, is the ct26. stock 7m turbo.

but.

what the heck is the 60-1 to4e? that doesnt make any sense to me whatsoever.

also, what is a compressor inducer/exducor? never heard of those before.

 

[cuel]

http://www.supraforums.com/forum/showpost.php?p=1646965&postcount=17
http://www.supraforums.com/forum/showpost.php?p=4077627&postcount=2
Those should help some.

 

[p5150]

Clipped is referring to trimming the turbine wheel to allow more exhaust gas to escape. Because the exhaust housing is so small on the CT26, some people do the clip as a band aid of sorts - it keeps the turbo from choking off the motor on the top end by taking some of it away and opening up the exhaust more. Its ok to get around the problem on the CT26; not the preferred method but it works. Increasing the clipping will eventually reach the point of diminishing returns - it will not spool the turbine as effectively and eventually you will run out of air....

Thats why it is important to have a properly matched exhaust housing (A/R) and turbine for your motor. Properly sized turbos do not have clipped wheels which produces maximum efficiency.

60-1 to4e is the name of a compressor wheel version manufactured by Garrett. They also make the "GT" series wheels which have been designed to take the place of the old "T" series wheels that have been around for years. If somebody tells you that their T series turbo is more efficient than a GT series then you need to kick them in the balls because they are retarded.

Many turbo companies (Precision, turbonetics, Sound Performance, etc) use some type of t3 or t4 wheel in a custom housing combination and name it their own. Some of the few companies that make wheels are Garrett, Borg Warner, Master Power and Ching Chang Chow Inc.

Compressor inducer is the small part that sucks the air in and the exducer is the big part that spits it out into the charge pipe. Dividing the inducer by the exducer gives you the trim of the wheel.

Oftentimes you may see people argue: "The PTxx is sooo much better than the Turbonetics xx-xx, but the SPxx is the best" Well, the informed turbo buyer may see by comparing all of those turbos specifications that they are the same fucking thing! They may all have the same wheels made by Garrett with just some minor changes in exhaust AR or compressor inlet shape.

Get to the meat of the problem and look at what WHEEL is in the turbo. If you do not know what wheel it is then you are wasting your time.


Hopefully that helps a bit because I am done now....

 

[theciviceater89]

wow. that was most likely the most informative moment of my life, sad as it may be haha.

so, now let me pose this question if i may.

if i were to slip the ct26 a bit, not much, and with proper inducer/exducer to match the clipping, a good intake and exhaust, i could more than likely get over 320 hp out of a 7m correct?> granted i would need to boost the hell out of the turbo...maybe 12 psi or so? or is that too high for the ct26? i can't remember....blah.

 

[s383mmber1]

if i were to slip the ct26 a bit, not much, and with proper inducer/exducer to match the clipping, a good intake and exhaust, i could more than likely get over 320 hp out of a 7m correct?> granted i would need to boost the hell out of the turbo...maybe 12 psi or so? or is that too high for the ct26? i can't remember....blah.

I boosted my ct26 at 12-13 PSI.


Then it blew up.

 

[theciviceater89]

wow. that sucks.

so i will now assume that while this could be done, it is not reccomended? wich turbo do you people suggest? garret seems pretty popular, is there any reason why most people prefer those?

 

[s383mmber1]

wow. that sucks.

so i will now assume that while this could be done, it is not reccomended? wich turbo do you people suggest? garret seems pretty popular, is there any reason why most people prefer those?

My turbo was used and abused to say the least. Many run stock CT's for months at 12++ psi. I wouldn't though.

57Trim CT26 is what im going with.

 

[theciviceater89]

well, i am pretty much next to broke now, so i really want to spent a little bit extra for that last huray of good parts, rather than just getting by..so...hhmm...is there a way i could figure out, or at least get a decent estimate of how much hp increase each one psi will give out? or is it all relative to your own setup?

also, i am right now looking at a garret gt37 turbo...it loks like it is exactly what i need, but i dont know what the hell i need haha..damnitt all...but the company says it is best for 320-500 hp, wich is where i would like to fall, and it works best one engine displacements of 2-5 liters.. i have 3, so again, right in the middle...i hope someone who knows what they are talking about chimes in before i potentially burn alot of money hahahahahaa...now im off to bed for i havent slept in three days.

 

[s383mmber1]

well, i am pretty much next to broke now, so i really want to spent a little bit extra for that last huray of good parts, rather than just getting by..so...hhmm...is there a way i could figure out, or at least get a decent estimate of how much hp increase each one psi will give out? or is it all relative to your own setup?

also, i am right now looking at a garret gt37 turbo...it loks like it is exactly what i need, but i dont know what the hell i need haha..damnitt all...but the company says it is best for 320-500 hp, wich is where i would like to fall, and it works best one engine displacements of 2-5 liters.. i have 3, so again, right in the middle...i hope someone who knows what they are talking about chimes in before i potentially burn alot of money hahahahahaa...now im off to bed for i havent slept in three days.

I hate to tell you, but if your next to being broke, modifying your car should be the LAST thing you do.

To run a gt37 youll need a custom manifold, downpipe, intake pipe, oil feed line, oil return line, and all the fittings to make it work.

Plus, much more.

 

[shaeff]

although i don't recommend it, i ran my BONE STOCK ct26 at 15psi for quite a while. it finally died from one hell of a boost spike, followed by compressor surge which chipped the fins, threw it off balance, and it died.

heh. i ran it like that for quite a while. probably a bit over a year. (again, NOT recommended!)

 

[theciviceater89]

although i don't recommend it, i ran my BONE STOCK ct26 at 15psi for quite a while. it finally died from one hell of a boost spike, followed by compressor surge which chipped the fins, threw it off balance, and it died.

heh. i ran it like that for quite a while. probably a bit over a year. (again, NOT recommended!)

wow, damn that sucks hahah.

well, i seem to be caught between a rock and a hard place...i want a more durable turbo, something i can run at about 15 psi or so...maybe a little bit higher, if i ever feel the urge...but i sure as crap dont want to have to go and basically reformat a bunch of crap to make it work, like i guess i would have to do with the gt37..do any of you guys know of a turbo that kinda fits what i am looking for?

 

[johnathan1]

You need to decide what your horsepower goal is, not what psi. You could take two turbos that are completely different, put them on the same motor, and one could make 300hp at 12psi, and the other could make 300hp at 16psi...that's why you need to decide what your horsepower goals are...it will help determine which turbo you need.

I think the easiest thing for you to do, is to get a CT-26 with an upgraded compressor wheel. I run the 57trim CT26, and my 7M makes almost 300rwhp at 10psi with only intake and exhaust mods. But from what I understand, the 57trim is good for up to 500hp...and is also quite reliable...I would go that route instead of trying to find the right turbo, manifold, wastegate, etc...and end up spending a ton of cash when you don't have huge power goals...320whp is easy attainable with a 57trim CT26, heck, even a 50trim.

Oh, and that's a nice JDM 2.5L Twin-Turbo R in your avatar...

 

[theciviceater89]

hahahaha...yeah....long, long, long story involving too much alcohol, a pissed off mother, a bad girlfriend, and oddly enough a dog.

anyway, yeah. the 57 trim sounds right up my alley then. do i just go and buy a bigger inducer wheel?>

 

[s383mmber1]

hahahaha...yeah....long, long, long story involving too much alcohol, a pissed off mother, a bad girlfriend, and oddly enough a dog.

anyway, yeah. the 57 trim sounds right up my alley then. do i just go and buy a bigger inducer wheel?>

No. You do nto do this yourself.

Send your turbo to one of the vendors here on supramania and tell them to upgrade it to a 57trim rebuild.

Right around 500-600 bucks.

Plenty of reliablitly and power./

 

[theciviceater89]

No. You do nto do this yourself.

Send your turbo to one of the vendors here on supramania and tell them to upgrade it to a 57trim rebuild.

Right around 500-600 bucks.

Plenty of reliablitly and power./

sweet. way cheaper than buying another turbo too! thanks guys!

 

[s383mmber1]

sweet. way cheaper than buying another turbo too! thanks guys!

Very cheap, very effective, very powerful, very reliable, very streetable, and very popular.

Why not?

 

[theciviceater89]

i guess haha!!!!

 

[shaeff]

you're going to be hard pressed to get 500hp from a 57 trim upgraded CT26. (as in, not likely to happen...)

i would say a safe reliability zone for a 57 trim is 400rwhp. you can squeeze a bit more out of it, though.

 

[theciviceater89]

wow. thatsalotapower.....


i dont need that much..i will die.

seriously.

 

[p5150]

The most I could squeeze out of the 57 trim ct-upgrade was 365rwhp.