bigger turbos
10-12-2006, 11:49 AM
#2
Über User
Join Date: Sep 2005
Location: lemont, Illinois
Posts: 9,532
as big as you want....the question you should ask is how much boost can you "safely" run on stock internals. just upgrade to a good size turbo you dont need ***** to the walls crap. i doubt you would want to run past 20psi stock. so a turbo that is not to big to avoid turbo lag, but large enough to efficiently put out 20-25 psi.....yes no? any agree...what would be a good turbo like that 530's? i never put to much research into the actual size turbos offered for the 300.....soo....i cant answer that part of the question to confidently.
10-12-2006, 03:09 PM
#5
Encyclopedic Knowledge
Join Date: Aug 2005
Location: Naperville, IL
Posts: 3,316
:::sigh:::
Boost isn't the limiting factor either. Greg Dupree was running 10.19 @136mph with GT2530s at over 20psi (I think it was closer to 24psi) on a stock block. Not to mention, 24psi on GT2530s is incredibly more efficient than 24psi on Sport 500s. Efficiency has a large role in power output, which is what matters when you're worried about internals.
People have done 751rwhp on stock internals (including heads)... turbo size has no effect on how much the internals can handle, assuming the setup is operating within its efficiency ranges.
And kevtt, if you didn't know that engine build is not dependent on turbo size, you need to leave your turbos alone and start reading. Aftermarket turbos belong on the Z32s of people who know what they're doing.
Boost isn't the limiting factor either. Greg Dupree was running 10.19 @136mph with GT2530s at over 20psi (I think it was closer to 24psi) on a stock block. Not to mention, 24psi on GT2530s is incredibly more efficient than 24psi on Sport 500s. Efficiency has a large role in power output, which is what matters when you're worried about internals.
People have done 751rwhp on stock internals (including heads)... turbo size has no effect on how much the internals can handle, assuming the setup is operating within its efficiency ranges.
And kevtt, if you didn't know that engine build is not dependent on turbo size, you need to leave your turbos alone and start reading. Aftermarket turbos belong on the Z32s of people who know what they're doing.
Last edited by ZLover4Life; 10-12-2006 at 03:11 PM.
10-12-2006, 03:17 PM
#6
Über User
Join Date: Sep 2005
Location: lemont, Illinois
Posts: 9,532
i didnt mention efficiency???? i thought it then and didnt type it....and i never said it wasnt safe...but if it were me i wouldnt really wnat to go over 20psi...25 on race gas....just a personal pref....you know? i mean plus going up to those HP levels is going to bring dow reliability a little to much for my taste...i know power and reliable dont go in the same sentence...but there is a neutral of both worlds....
10-12-2006, 03:34 PM
#7
Encyclopedic Knowledge
Join Date: Aug 2005
Location: Naperville, IL
Posts: 3,316
You mentioned efficiency, but that's still not the point.
A TD06-20G turbo at 25psi on a setup making 750rwhp will be efficient, but will blow the engine just as easily as a slightly less efficient TD05-16G turbo making the same power. Horsepower is the limiting factor of the engine. Efficiency simply means a turbo will make more power at the same boost level.
Honestly, though, the bottom line of this thread is simple: if you (kevtt) don't understand why turbo size has no effect on what's required in terms of engine build, you're not ready for aftermarket turbos. I'm not saying it as a "knowledge is a right of passage" thing, but as a "if you don't understand the mechanics of how a turbo setup works with an engine, you're going to blow the engine by messing around with turbo setups."
A TD06-20G turbo at 25psi on a setup making 750rwhp will be efficient, but will blow the engine just as easily as a slightly less efficient TD05-16G turbo making the same power. Horsepower is the limiting factor of the engine. Efficiency simply means a turbo will make more power at the same boost level.
Honestly, though, the bottom line of this thread is simple: if you (kevtt) don't understand why turbo size has no effect on what's required in terms of engine build, you're not ready for aftermarket turbos. I'm not saying it as a "knowledge is a right of passage" thing, but as a "if you don't understand the mechanics of how a turbo setup works with an engine, you're going to blow the engine by messing around with turbo setups."
Last edited by ZLover4Life; 10-12-2006 at 03:40 PM.
10-12-2006, 03:42 PM
#9
Encyclopedic Knowledge
Join Date: Aug 2005
Location: Naperville, IL
Posts: 3,316
I'm not here to lecture on turbo setups; all that info is available on TwinTurbo.NET and in writeups by Ash, Greg Dupree, and Corky Bell, generally available through searching google.
Z weather has been gone for me for a couple weeks (since we had the non-stop rain). She's covered and the 4x4 is insured and being driven already.
Z weather has been gone for me for a couple weeks (since we had the non-stop rain). She's covered and the 4x4 is insured and being driven already.
10-12-2006, 03:44 PM
#11
caught the z fever
Join Date: Jun 2004
Location: Lafayette, IN
Posts: 2,518
Originally Posted by ZLover4Life
People have done 751rwhp on stock internals (including heads)... turbo size has no effect on how much the internals can handle, assuming the setup is operating within its efficiency ranges.
Originally Posted by ZLover4Life
And kevtt, if you didn't know that engine build is not dependent on turbo size, you need to leave your turbos alone and start reading. Aftermarket turbos belong on the Z32s of people who know what they're doing.
10-12-2006, 03:48 PM
#13
Registered User
Thread Starter
Join Date: Feb 2005
Posts: 66
ok this is the thign..i know only so little of turbo cars, and dont know certain things like..whats the psi, whats the turbo timer for..basic stuff for some of you guys...so if theres a writeup about this that some one knows about...can you please refer me...i dont plan on buggin you guyz..just looking for some help..thanks
10-12-2006, 03:51 PM
#14
Encyclopedic Knowledge
Join Date: Aug 2005
Location: Naperville, IL
Posts: 3,316
Originally Posted by b300z
im curious...i saw you posted that somewhere else on here, but never who it was, or anything else about the Z.
Last edited by ZLover4Life; 10-12-2006 at 03:59 PM.
10-12-2006, 03:54 PM
#15
Über User
Join Date: Sep 2005
Location: lemont, Illinois
Posts: 9,532
Originally Posted by kevtt
ok this is the thign..i know only so little of turbo cars, and dont know certain things like..whats the psi, whats the turbo timer for..basic stuff for some of you guys...so if theres a writeup about this that some one knows about...can you please refer me...i dont plan on buggin you guyz..just looking for some help..thanks
10-12-2006, 04:04 PM
#16
Über User
Join Date: Sep 2005
Location: lemont, Illinois
Posts: 9,532
ACTUALLY...i wrote a 10 page research paper on turbochargers and superchargers...if you want Kev. i can e-mail it to you and you should get some good stuff out of it...i would post it here...but umm..10 pages......
10-12-2006, 04:10 PM
#17
Registered User
Thread Starter
Join Date: Feb 2005
Posts: 66
allright..sent it to kevin300z@hotmail.com if you can snwbrder...appreciate it
10-12-2006, 04:16 PM
#18
Über User
Join Date: Sep 2005
Location: lemont, Illinois
Posts: 9,532
ok...my e-mail is sky_viper6868@yahoo.com...i think i got a B on the paper or high C lol...only for not being amazing in grammer or spelling small crap. besides that it should help you alot, i remember covering alot of junk. and the stuff you see in parenthesis or in quotes that are short with number...they are citations...ignor them. if its a long quote read it though...
10-12-2006, 04:31 PM
#20
Über User
Join Date: Sep 2005
Location: lemont, Illinois
Posts: 9,532
research paper man....REASEARCH PAPER....there is good stuff on the link page...but this way is a little quicker and easier...pictures help to so find some cut away views of turbos and crap....
and i sent it to yah kev
and i sent it to yah kev
10-12-2006, 06:03 PM
#21
confuzed member
Join Date: Jul 2003
Location: Salinas, CA
Posts: 3,074
When it comes to choosing turbos, you have to take your goals into mind. If you're wanting a road course car, TD-06's aren't going to be the best choice since they will be a laggier turbo setup. TD-06's work for drag or high power apps. Remember that if you want to run aftermarket turbos, it'll be a good idea to upgrade the rest of your system. Upgrade fuel and your ecu. IS this a street car or a race car? What's your goals....this will help us help you.
10-12-2006, 06:34 PM
#23
Registered User
Join Date: Feb 2006
Location: Ohio
Posts: 459
Turbos turbos turbos
Since the Z sucks ***** to work on the turbos you should really probably think long and hard about how RELIABLE you want it to be before you go slapping on big turbos and running 20+ PSI. If you are a daily driver and want a respectable track time then 450-550rwhp is a pretty nice thing. Think Ball bearing turbos, sport 500-600s 530s the GT600r or the like. and run 15-18psi for longish life and less down time. If you are the type of person who knows they wont be happy until they are driving a car that is..well...nearly undrivable then there are always bigger turbos that can safely run 20-32psi. Of course they will require lots of other mods, gas milage will suffer to say the least, and more then likely you will need to replace head gaskets and seals and spend a lot more time in the garage. Personally i went with the 530s ugraded my injectors to 555s Single K&N intake Mild cams and remapped my ECU accordingly afermarket exhaust 1 piece driveshaft upgraded clutch fidanza flywheel and i switched to an electric fan. With 18.5PSI i get 488rwhp at sea level (68 degrees) which still puts one helluva smile on my face and scares the bejesus out of whomever is in the car with me.
your so very welcome...glad i could put it to use besides earning my a grade....that was rewarding enough.
