turbo "trim"

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Postby Toxygene » Thu Apr 13, 2006 5:05 pm

theUNYTEDone wrote:hey toxy, with that hot end bolt configuration, won't one need to get a downpipe with a matching flange? 7 bolt...hmmm....externally wastegated. awesome.


What? :shrug: and What? :shrug: are you talking about??? The turbo I referenced is a bolt on affair with an internal wastegate. It takes the stock turbo housing and modifies it but it is supposedly a bolt on affair.
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Postby db » Thu Apr 13, 2006 5:13 pm

theUNYTEDone wrote:
db wrote:The most common trims for upgraded CT26s are 46 and 50. Everyone at MR2OC seems to think anything bigger is a waste.


does a higher number indicate higher trim, or is it the other way around?


Larger trim number means larger compressor blade. Unless there is any clipping of the turbine blade going on, a larger trim is just going to beef up the midrange torque and create more lag as there is more mass to spool up. That's why 46 and 50 trims are common. Additional, usable power increase with a minimum of extra lag.
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Re: ct26/gt35r

Postby db » Thu Apr 13, 2006 5:19 pm

GMan wrote:> Toxygene
> Location: Long Beach, CA
> Posted: Wed Apr 12, 2006 8:48 pm
> They discuss that the only upgrade anyone should ever need on a stock block would be this one:
> http://www.extremeboost.com/specials/CT26-35R.htm

LB's of Extreme Boost fame ? :-)
Anyone get one of these hybrids?
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one graph of output.
http://www.turboforum.net/dyno/pages/ct2635r.htm

Regards;


Yep, that's LB's shop. I wouldn't recommend anyone buying something from him. Apparently he no longer sells the CT26/35Rs anyways, as the profit margin on them was small (and they were sourced from Australia).

Seems like a handful of them made into MR2 market. They pop up from time to time in the for sale section.
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Postby Toxygene » Thu Apr 13, 2006 5:49 pm

So DB.. first off I am saving up for a Stand Alone ECU.. Secondly I am going to build up the engine and with that being said to keep the car from being laggy and more geared for Auto-X or canyon Carving, what size turbo would you recommend?
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Postby db » Thu Apr 13, 2006 8:12 pm

Honestly? I don't know, because I don't know everything you plan on doing, but a TD06 or a T3/T4 46/50 trim would probably suit your needs well if response and power are equally important to you.

If throttle response was more important than ultimate power, a CT27 might be a good choice with all the major bolt ons.
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Postby Toxygene » Thu Apr 13, 2006 8:44 pm

Thank you. That is at least a finger in the right direction.
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Postby d1alltrac » Fri Apr 14, 2006 12:14 am

db wrote:The most common trims for upgraded CT26s are 46 and 50. Everyone at MR2OC seems to think anything bigger is a waste.


true for the 3s community but in the supra community its a whole different story. the 7m guys seem to like 57 trim and higher, i havent heard of any bigger than a 60-1 though. actually my brother had a 57 trim upgrade on his mkIII and he said it was considerd "stage 1"
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Postby theUNYTEDone » Fri Apr 14, 2006 1:12 am

Toxygene wrote:
theUNYTEDone wrote:hey toxy, with that hot end bolt configuration, won't one need to get a downpipe with a matching flange? 7 bolt...hmmm....externally wastegated. awesome.


What? :shrug: and What? :shrug: are you talking about??? The turbo I referenced is a bolt on affair with an internal wastegate. It takes the stock turbo housing and modifies it but it is supposedly a bolt on affair.



:doh: sorry, i meant...the downpipe side has seven bolts!!!
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Postby theUNYTEDone » Fri Apr 14, 2006 1:14 am

db wrote:Honestly? I don't know, because I don't know everything you plan on doing, but a TD06 or a T3/T4 46/50 trim would probably suit your needs well if response and power are equally important to you.

If throttle response was more important than ultimate power, a CT27 might be a good choice with all the major bolt ons.


sorry for possibly being dumb, but a CT27 is simply an upgraded 26, yes?
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Postby Gary » Fri Apr 14, 2006 1:24 am

Yes.
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Postby db » Fri Apr 14, 2006 2:59 pm

Its an upgraded CT26, but in enough ways to differ it from any other upgrade. Its pretty close to a CT20b in performance.
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Postby db » Fri Apr 14, 2006 3:00 pm

d1alltrac wrote:
db wrote:The most common trims for upgraded CT26s are 46 and 50. Everyone at MR2OC seems to think anything bigger is a waste.


true for the 3s community but in the supra community its a whole different story. the 7m guys seem to like 57 trim and higher, i havent heard of any bigger than a 60-1 though. actually my brother had a 57 trim upgrade on his mkIII and he said it was considerd "stage 1"


I'll start recommending 57 trims and up when 3sgte's sprout 2 more cylinders. :D
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Postby Toxygene » Fri Apr 14, 2006 9:51 pm

d1alltrac wrote:
db wrote:The most common trims for upgraded CT26s are 46 and 50. Everyone at MR2OC seems to think anything bigger is a waste.


true for the 3s community but in the supra community its a whole different story. the 7m guys seem to like 57 trim and higher, i havent heard of any bigger than a 60-1 though. actually my brother had a 57 trim upgrade on his mkIII and he said it was considerd "stage 1"


Hey D1 we'ere over here... :P in the 3SGTE side of the field.. your way out in left field somewhere... LOL :lol:
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Postby d1alltrac » Fri Apr 14, 2006 11:56 pm

Toxygene wrote:
d1alltrac wrote:
db wrote:The most common trims for upgraded CT26s are 46 and 50. Everyone at MR2OC seems to think anything bigger is a waste.


true for the 3s community but in the supra community its a whole different story. the 7m guys seem to like 57 trim and higher, i havent heard of any bigger than a 60-1 though. actually my brother had a 57 trim upgrade on his mkIII and he said it was considerd "stage 1"


Hey D1 we'ere over here... :P in the 3SGTE side of the field.. your way out in left field somewhere... LOL :lol:


lol...i was just saying they are out there, actually ive seen a few mr2's with 57 and 60 trims
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Postby darthripley » Sat Apr 15, 2006 7:12 pm

Gary, thanks for the great articles. i am taking them in slowly...like a fine wine 8)

and btw, i'll ask a total n00b question. is there any difference between a JDM ceramic CT26 and a USDM CT26 other than the ceramic?
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