500+ Rwhp
03-10-05, 03:15 AM
#26
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I have another thought on those numbers and turbo. I also think he did the numbers he says. It's the turbo I question. He's sure it is a .81 a/r but was not sure of the wheel size ( from his original post ). He lives close to CentralFloridaTurbo and they sale S and R exhaust wheels. Could those number be more consistant with a bigger wheel?
I am thinking of upgradeing from a .96 a/r p-trim to a .96 a/r S or R wheel but if those numbers are correct for a .81 p-trim then I will not waste my money on a new turbo.
chuck
I am thinking of upgradeing from a .96 a/r p-trim to a .96 a/r S or R wheel but if those numbers are correct for a .81 p-trim then I will not waste my money on a new turbo.
chuck
03-10-05, 07:39 AM
#27
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ill post here from expirience, i bought the same turbo from Ken. TO4R with .96 rear .70 front and a p wheel. I made 493 WHP at 22lb boost with 93 octane fuel and alcohol injextion.
here is the dyno sheet
http://img.photobucket.com/albums/v2...0Sheets/11.jpg
also, what mods u have done to the internals of the motor will determin the power outputs you will achive and for how long the motor will hold up.
here is the dyno sheet
http://img.photobucket.com/albums/v2...0Sheets/11.jpg
also, what mods u have done to the internals of the motor will determin the power outputs you will achive and for how long the motor will hold up.
03-10-05, 11:48 AM
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Originally Posted by TEZTnTUNE
thats not the point ernie. the point is that the pt67 will support well over 500 whp. she wont start singing till over 20psi of boost. like ive said before this turbo is designed for engines with airflow like 2.2 to 2.4 liter engines. i have a h22a with this same exact turbo at my shop pushing 411 to the wheels at 12psi. granted this engine is highly modifyed but it still shows u what this turbo can do with the right parts to augment it.
I see your point. I've just not seen that high of numbers around for what I view as a small turbo.
03-12-05, 10:18 AM
#30
Laying Down Rotary Law
how is a 67mm turbo small?
seen plenty of people make 400+ on a 60-1 (60mm) at 15 PSI
maybe too small is your building a purpose built street drag car
a civic around here made 640 FWHP @ 28 PSI
with a SC-67 (precision turbo)
a couple of DSM guys have made 540+ with SC-67's also
theres ALOT of people around my town that are using presicion turbos
all with great results
Like you stated your self Ernie
its in the tuning
or you forgetton blowing up all those motors to get the numbers you finnaly got with your old car............
seen plenty of people make 400+ on a 60-1 (60mm) at 15 PSI
maybe too small is your building a purpose built street drag car
a civic around here made 640 FWHP @ 28 PSI
with a SC-67 (precision turbo)
a couple of DSM guys have made 540+ with SC-67's also
theres ALOT of people around my town that are using presicion turbos
all with great results
Like you stated your self Ernie
its in the tuning
or you forgetton blowing up all those motors to get the numbers you finnaly got with your old car............
03-12-05, 12:20 PM
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Originally Posted by kabooski
how is a 67mm turbo small?
seen plenty of people make 400+ on a 60-1 (60mm) at 15 PSI
maybe too small is your building a purpose built street drag car
a civic around here made 640 FWHP @ 28 PSI
with a SC-67 (precision turbo)
a couple of DSM guys have made 540+ with SC-67's also
theres ALOT of people around my town that are using presicion turbos
all with great results
Like you stated your self Ernie
its in the tuning
or you forgetton blowing up all those motors to get the numbers you finnaly got with your old car............
seen plenty of people make 400+ on a 60-1 (60mm) at 15 PSI
maybe too small is your building a purpose built street drag car
a civic around here made 640 FWHP @ 28 PSI
with a SC-67 (precision turbo)
a couple of DSM guys have made 540+ with SC-67's also
theres ALOT of people around my town that are using presicion turbos
all with great results
Like you stated your self Ernie
its in the tuning
or you forgetton blowing up all those motors to get the numbers you finnaly got with your old car............
03-12-05, 02:07 PM
#33
Originally Posted by ErnieT
You can't compare how turbo's make power on piston motors to rotary's. Not even in the same ballgame. Exhaust pulse is twice as hot on a rotary. Anyhow, IMO 400rwhp isn't squat since new cars like the Z06 will putting down that same power. Im looking at 500rwhp on pump gas or close to it and over 600rwhp on c-16. But thats just my opinion. Everyone has one as well as different goals.
03-12-05, 02:21 PM
#34
Laying Down Rotary Law
exactly 400 on a FC / FB or FD would smoke a 400 Supra, mustang etc
if I wanted 600 RWHP on C-16 its only some clicks away on my boost controller
but whats the use? if I can't put it to the ground
T&R has a customer car that ran 11.2 with only 388 HP (has suspension and roll bar)
cuts 1.56 60' foots
I'm only cutting 1.67 and gets loose on me
hence I'm working on my suspension and chassis now
if I wanted 600 RWHP on C-16 its only some clicks away on my boost controller
but whats the use? if I can't put it to the ground
T&R has a customer car that ran 11.2 with only 388 HP (has suspension and roll bar)
cuts 1.56 60' foots
I'm only cutting 1.67 and gets loose on me
hence I'm working on my suspension and chassis now
03-12-05, 07:08 PM
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Originally Posted by kabooski
exactly 400 on a FC / FB or FD would smoke a 400 Supra, mustang etc
if I wanted 600 RWHP on C-16 its only some clicks away on my boost controller
but whats the use? if I can't put it to the ground
T&R has a customer car that ran 11.2 with only 388 HP (has suspension and roll bar)
cuts 1.56 60' foots
I'm only cutting 1.67 and gets loose on me
hence I'm working on my suspension and chassis now
if I wanted 600 RWHP on C-16 its only some clicks away on my boost controller
but whats the use? if I can't put it to the ground
T&R has a customer car that ran 11.2 with only 388 HP (has suspension and roll bar)
cuts 1.56 60' foots
I'm only cutting 1.67 and gets loose on me
hence I'm working on my suspension and chassis now
03-14-05, 10:56 AM
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ernie, about the z06 pulling a rx7 if both were to have 400whp...not exactly true. Rx7 weighs less...given the same power the rx7 will win. Simple math. Local z06 with intake and full exhaust got inched by boostcrzy from a 40 mph roll to 140-150 mph...z06 was making a tad over 400whp. Boostcrzy has bolt ons and extra injectors and an intercooler., roughly 350-370whp.
03-14-05, 11:41 AM
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Well anything can happen in a race, especially on the street...driver error etc. Im just using simple math to explain my conclusion. I think most would agree that the same given hp in a lighter car , the lighter car will win...not like rx7s dont have decent gearing to begin with..;p
03-14-05, 11:49 AM
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Originally Posted by kabooski
how is a 67mm turbo small?
seen plenty of people make 400+ on a 60-1 (60mm) at 15 PSI
maybe too small is your building a purpose built street drag car
a civic around here made 640 FWHP @ 28 PSI
with a SC-67 (precision turbo)
a couple of DSM guys have made 540+ with SC-67's also
theres ALOT of people around my town that are using presicion turbos
all with great results
Like you stated your self Ernie
its in the tuning
or you forgetton blowing up all those motors to get the numbers you finnaly got with your old car............
seen plenty of people make 400+ on a 60-1 (60mm) at 15 PSI
maybe too small is your building a purpose built street drag car
a civic around here made 640 FWHP @ 28 PSI
with a SC-67 (precision turbo)
a couple of DSM guys have made 540+ with SC-67's also
theres ALOT of people around my town that are using presicion turbos
all with great results
Like you stated your self Ernie
its in the tuning
or you forgetton blowing up all those motors to get the numbers you finnaly got with your old car............
All of those numbers on piston engines would be about 20% lower on a rotary engine.
Thats basically a T66. It would be good for about 530rwhp, but barely and at around 25+psi of boost.
If you want to make 500rw at a decent boost get a large port and a T72 or GT42. Thats the size you need to make that hp level at lower boost levels.
BTW - When you look at a website that shows how much HP thier turbo is good for realize that the spec is for a piston engine, at the flywheel, and peak boost. Take thier HP specs, multiply times .80 to convert to rotary, then multiply that times .85 to convert to RW. That is appx what you'll make if you max the turbo.
Stephen
Last edited by SPOautos; 03-14-05 at 12:07 PM.
03-14-05, 12:02 PM
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Something I just noticed on that turbo you linked to. Its specs say....
flow: 75 lbs/min 960cfm
Well, 75lbs/min is good for about 570rwhp on a rotary. HOWEVER, 75lbs/min is 1086cfm not 960cfm. The 960cfm is only good for a hair over 500rwhp.
Guess it depends on which one of thier flow specs is the real deal....if you can trust either.
Stephen
flow: 75 lbs/min 960cfm
Well, 75lbs/min is good for about 570rwhp on a rotary. HOWEVER, 75lbs/min is 1086cfm not 960cfm. The 960cfm is only good for a hair over 500rwhp.
Guess it depends on which one of thier flow specs is the real deal....if you can trust either.
Stephen
03-14-05, 01:54 PM
#43
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things like flow ratings and compressor maps are not info that is set in stone. its to give the person viewing those things a basic idea of what that turbo/wheel can do at certain rpm, boost, and speeds for different engines.
lots of things effect how much power a certain size turbo will make. i.e. engine efficiency, compression, displacement, backpressure, sea level, these are only a few. the sill of your tuner will be mostly responsible for how much power your engine will make.
bootm line: member who started this thread asked for a turbo that can produce 500+ whp on a rotary. pt67 can and has done it. its dyno proven. instead of kicking a dead horse how about we offer other turbochargers that can make the power level jin is asking for.
lots of things effect how much power a certain size turbo will make. i.e. engine efficiency, compression, displacement, backpressure, sea level, these are only a few. the sill of your tuner will be mostly responsible for how much power your engine will make.
bootm line: member who started this thread asked for a turbo that can produce 500+ whp on a rotary. pt67 can and has done it. its dyno proven. instead of kicking a dead horse how about we offer other turbochargers that can make the power level jin is asking for.
03-14-05, 03:38 PM
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Originally Posted by ghostrx7
btw ernie hows the car coming along?
03-14-05, 05:55 PM
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Originally Posted by TEZTnTUNE
things like flow ratings and compressor maps are not info that is set in stone. its to give the person viewing those things a basic idea of what that turbo/wheel can do at certain rpm, boost, and speeds for different engines.
lots of things effect how much power a certain size turbo will make. i.e. engine efficiency, compression, displacement, backpressure, sea level, these are only a few. the sill of your tuner will be mostly responsible for how much power your engine will make.
bootm line: member who started this thread asked for a turbo that can produce 500+ whp on a rotary. pt67 can and has done it. its dyno proven. instead of kicking a dead horse how about we offer other turbochargers that can make the power level jin is asking for.
lots of things effect how much power a certain size turbo will make. i.e. engine efficiency, compression, displacement, backpressure, sea level, these are only a few. the sill of your tuner will be mostly responsible for how much power your engine will make.
bootm line: member who started this thread asked for a turbo that can produce 500+ whp on a rotary. pt67 can and has done it. its dyno proven. instead of kicking a dead horse how about we offer other turbochargers that can make the power level jin is asking for.
Interesting, and I thought the PT67 was Precision Turbo....not some no name Phoenix Turbo that he is looking at from Cheapturbo.com. I have no idea if its the same or not. The specs might be similar to a PT67, however they are also similar to a standard run of the mill Garrett T66. Who know what kind of compressor wheel and CHRA they are puttin in it.
You are right though, the compressor map isnt always accurate and is based around certain conditions. That being said, the compressor maps if anything are usually high, not low.....obviously cause that makes thier turbos look better haha.
How could you trust them anyway? They list 2 different flow ratings for the same damn turbo right there next to eachother. They need to get thier **** together, they probably dont even know whats in thier turbo.
Stephen
03-14-05, 06:35 PM
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well stephen thats why i never buy turbos from "some place on the web". when i buy turbochargers for clients i go right to the source for selection.
http://www.precisionturbo.net/turboc...tegory_id=3027
i like going to shops that specialize in forced induction. not some website on the net. usually the selection is much better.
IMO precision and innovative are awesome turbochrgers
the t4/to4r they sell is very similar to the pt67. is it the same quality? that i cant say. for now id stick to the precision stuff.
http://www.precisionturbo.net/turboc...tegory_id=3027
i like going to shops that specialize in forced induction. not some website on the net. usually the selection is much better.
IMO precision and innovative are awesome turbochrgers
the t4/to4r they sell is very similar to the pt67. is it the same quality? that i cant say. for now id stick to the precision stuff.
Last edited by TEZTnTUNE; 03-14-05 at 06:42 PM.
03-14-05, 11:22 PM
#48
jus my 2 cents, congrats to kaboooooski for making the number!!! what ever "boost" it was at it was made and still alive (i think) as for my setup
i run a PT 74 GTS this turbo kicks ASSSSS.the problem is it moves alot of air
your probably thinking this is a good thing,and it would be if you have the correct
fuel system ems etc.......I tuned the car on a dynojet about 2 weeks ago and made
560 @ 28 psi w/ a/f @ 11.2 .............long story short took it to track to break the 10 sec ROAD BLOCK and insted blew the engine
and ran a 11.2 @ 120mph cuz I kept my foot in it. the moral to ALL this is making the power is fairly
easy keeping it alive is another topic
my turbo picks are
TE-44 (made 400 rwhp) .58 street
64-E (made 480 rwhp) .58 street .81 race
74-GTS (made 560 rwhp).81 E nuf
ALL are PT turbos!!!!!
i run a PT 74 GTS this turbo kicks ASSSSS.the problem is it moves alot of air
your probably thinking this is a good thing,and it would be if you have the correct
fuel system ems etc.......I tuned the car on a dynojet about 2 weeks ago and made
560 @ 28 psi w/ a/f @ 11.2 .............long story short took it to track to break the 10 sec ROAD BLOCK and insted blew the engine
and ran a 11.2 @ 120mph cuz I kept my foot in it. the moral to ALL this is making the power is fairlyeasy keeping it alive is another topic
my turbo picks are
TE-44 (made 400 rwhp) .58 street
64-E (made 480 rwhp) .58 street .81 race
74-GTS (made 560 rwhp).81 E nuf
ALL are PT turbos!!!!!
03-15-05, 03:26 AM
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Nice to see Tearbo2 is still alive.
Those are some nice numbers Tearbo2. I can see those number with a S-trim wheel on a 13B. Makes me wonder about making over 500wrhp with a .81 p-trim wheel at only 20psi. I pushed my .96 p-trim pretty hard and was seeing boost drop above 22psi. I always thought it was the exhaust wheel/a/r creating to much back pressure. Could be totaly wrong about the smaller a/r and p-trim wheel not able to support over 500wrhp without pushing it over 25psi.
Tearbo2, I am looking at getting a PT72 .96 a/r with a S wheel also. Now seeing your numbers I think I will get it. Was starting to think it was to big.
chuck
Those are some nice numbers Tearbo2. I can see those number with a S-trim wheel on a 13B. Makes me wonder about making over 500wrhp with a .81 p-trim wheel at only 20psi. I pushed my .96 p-trim pretty hard and was seeing boost drop above 22psi. I always thought it was the exhaust wheel/a/r creating to much back pressure. Could be totaly wrong about the smaller a/r and p-trim wheel not able to support over 500wrhp without pushing it over 25psi.
Tearbo2, I am looking at getting a PT72 .96 a/r with a S wheel also. Now seeing your numbers I think I will get it. Was starting to think it was to big.
chuck
03-15-05, 05:20 AM
#50
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Originally Posted by chuck8313BTSDS
Nice to see Tearbo2 is still alive.
Those are some nice numbers Tearbo2. I can see those number with a S-trim wheel on a 13B. Makes me wonder about making over 500wrhp with a .81 p-trim wheel at only 20psi. I pushed my .96 p-trim pretty hard and was seeing boost drop above 22psi. I always thought it was the exhaust wheel/a/r creating to much back pressure. Could be totaly wrong about the smaller a/r and p-trim wheel not able to support over 500wrhp without pushing it over 25psi.
Tearbo2, I am looking at getting a PT72 .96 a/r with a S wheel also. Now seeing your numbers I think I will get it. Was starting to think it was to big.
chuck
Those are some nice numbers Tearbo2. I can see those number with a S-trim wheel on a 13B. Makes me wonder about making over 500wrhp with a .81 p-trim wheel at only 20psi. I pushed my .96 p-trim pretty hard and was seeing boost drop above 22psi. I always thought it was the exhaust wheel/a/r creating to much back pressure. Could be totaly wrong about the smaller a/r and p-trim wheel not able to support over 500wrhp without pushing it over 25psi.
Tearbo2, I am looking at getting a PT72 .96 a/r with a S wheel also. Now seeing your numbers I think I will get it. Was starting to think it was to big.
chuck
not to be off topic, but I see you also was/are stationed on Yokota
