Turbo Terminology Explained...
11-09-2003, 06:09 PM
#41
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Thread Starter
Join Date: Sep 2002
Location: Maryland
Posts: 3,867
Originally Posted by baracuda7' date='Nov 5 2003, 09:19 PM
a skyline gtr r33 made 1000+ hp with just the hks t51r-spl turbo.
here is the proof.
http://www.toprpm.com/eng/future/future1.shtm
and here is the vid http://www.toprpm.com/videodw/stream/future_gtr33.ram
btw they made 1000+ rwhp with no nitrous. so imagine what it will do for a rotary.
here is the proof.
http://www.toprpm.com/eng/future/future1.shtm
and here is the vid http://www.toprpm.com/videodw/stream/future_gtr33.ram
btw they made 1000+ rwhp with no nitrous. so imagine what it will do for a rotary.
11-09-2003, 10:01 PM
#42
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Join Date: Nov 2003
Location: Hell (Colorado School of Mines)
Posts: 521
Originally Posted by 93 R1' date='Nov 9 2003, 04:07 PM
Huh? 
Basically just plug in your temp and cfm into the two equations to get lbs/min. Thats all you need to know.
Unless you have a Thermo-Chem test coming up next week.
12-13-2003, 02:47 PM
#43
Member
Join Date: Oct 2003
Location: Aurora, Colorado
Posts: 69
Well i think everyones idea of streetable is different. Some consider it out of comfortability, and some don't consider something non streetable unless **** starts breaking every 100 miles. So it might help if you specify your definition of streetable before asking questions on that subject. I am still new to the rotary world, so i haven't seen tons of setups yet. but just from your guys' memory... how many people are running t-66 or bigger on 13b's.
03-22-2004, 01:15 AM
#45
Junior Member
Join Date: Mar 2004
Posts: 5
wow. my second post and its only because i had to take a break from learning to exercise my fingers. i am reading everylink and bit of info in this thread, because i just love to learn. although some of it is confusing, i will try my best. but i do have a great basic idea on how turbos intercoolers work. etc. keep the good stuff coming!
04-28-2004, 08:06 AM
#47
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Join Date: Dec 2002
Location: Bayou-self Louisiana
Posts: 947
OK here is my guess on changing Sizing to get a different response.( which we did with the T66) and seat of the pants feel no dyno yet ( with .96 it had 402whp 16psi).
Please tell me if I am heading in the wrong direction.
T72 is what I am looking at...
The turbine comes in several sizes and as mentioned in the thread earlier it is 200rpm more lag than the T66.
Like a bike front/ rear sprocket , auto pully system , tire to hub diameter etc.,
By taking the turbine down from a 1.15 or.96 to the much smaller .70 or .84 wouldnt the exhaust spool this much faster? Then due too the sizzing being the same on the compressor the CFM would come that much sooner to be more usable at lower RPM. Now of course I would give up 450 @16 PSI at 7,500 RPM but I should have 200 HP at a much lower RPM (streeable/ usable RPM) range.
More get up and go through out the range so not as to be so peaky and then have the shifting befor the you really enjoy the power surge.
I assume this could help wih the torque down low also for running harder earlier in the rpm.
Please tell me if I am heading in the wrong direction.
T72 is what I am looking at...
The turbine comes in several sizes and as mentioned in the thread earlier it is 200rpm more lag than the T66.
Like a bike front/ rear sprocket , auto pully system , tire to hub diameter etc.,
By taking the turbine down from a 1.15 or.96 to the much smaller .70 or .84 wouldnt the exhaust spool this much faster? Then due too the sizzing being the same on the compressor the CFM would come that much sooner to be more usable at lower RPM. Now of course I would give up 450 @16 PSI at 7,500 RPM but I should have 200 HP at a much lower RPM (streeable/ usable RPM) range.
More get up and go through out the range so not as to be so peaky and then have the shifting befor the you really enjoy the power surge.
I assume this could help wih the torque down low also for running harder earlier in the rpm.
05-03-2004, 01:50 PM
#48
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Join Date: Nov 2002
Location: Honolulu, Hawaii USA
Posts: 925
Watch it with the "inducer" and "exducer" terms.
The terms literally mean...
inducer = inlet
exducer = outlet
For compressor side: inducer is the minor diameter; exducer is the major diameter.
For the *turbine* side, this is flipped around: inducer is the major diameter, and the exducer is the minor diameter.
Most people describe the compressor wheel with "inducer" and "major".
Just to cut down on the confusion, I typically use "minor" and "major" diameters.
-Ted
The terms literally mean...
inducer = inlet
exducer = outlet
For compressor side: inducer is the minor diameter; exducer is the major diameter.
For the *turbine* side, this is flipped around: inducer is the major diameter, and the exducer is the minor diameter.
Most people describe the compressor wheel with "inducer" and "major".
Just to cut down on the confusion, I typically use "minor" and "major" diameters.
-Ted
02-05-2005, 12:00 AM
#50
Junior Member
Join Date: Jan 2005
Posts: 6
Originally Posted by 93 R1' date='May 3 2004, 03:14 PM
fro[m a 62-1 .96 ptrim and ran high 11s, to a t70 1.00qtrim and slowed down
until I sprayed. I had other issues that may have contributed, but I think
a t66 is about as perfect an all around turbo as they come. It has good spool,
and a huge sweet spot. It can run tons of boost- 35psi+ and be efficient.
I also toyed with a t76, hated it. The most fun my car was to drive was with
the 62-1. I want to try the 62-1 with a .81, someday. As for now, I am
setting up a pt67gtp from precision. It is a ported shroud 67mm wheel
with a ptrim .84 exhaust housing. I was going to do a t66, but the pt67
makes alot more low end torque[exducer on compressor smaller than
t66] and I plan on under 30psi. Sweet spot is 22-25psi. Basically, the
turbo acts like a big 62-1, hits hard down low but keeps pulling. Should
yield 500-600whp- we'll see.