typical turbo rpm?

[Casey]

Hey, does anyone know what a typical turbo spools at on its maximum rpm?
any info is needed
not just like a number lol
i know it depends on size of engine size of blades ect ect AR setting airflow all kinds of crap
but a general ballpark spool rate...
i cant find it on the net anywhere

[1800DialKyle]

Well find out what turbo you want to find the spool rate of.
If you would like some litature to read up on go here:
this is a good one that helps explain what AR really is http://www.moddedmustangs.com/forums/turbo-size-a-r-and-trim-vt730.html

and this one has everything and anything you need to know
http://www.turbobygarrett.com/turbobygarrett/tech_center/tech_center.html
they have a shit load of info there. check the side links.

[Casey]

Well find out what turbo you want to find the spool rate of.
If you would like some litature to read up on go here:
this is a good one that helps explain what AR really is http://www.moddedmustangs.com/forums/turbo-size-a-r-and-trim-vt730.html

and this one has everything and anything you need to know
http://www.turbobygarrett.com/turbobygarrett/tech_center/tech_center.html
they have a shit load of info there. check the side links.


sweet
ima check that out now lol
but also
ive got a book that i totally reccomend everyone who turbos thier car read
its called "maximum boost, Designing, testing, and installing turbocharger systems"
this thing is full of usefull information not able to find anywhere else
it just didnt seem to have any type of specific rpm of turbos... more a genearal info stuff
heres the amazon link
http://www.amazon.com/Maximum-Boost-Turbocharger-Engineering-Performance/dp/0837601606/ref=sr_1_1/104-7124674-3691135?ie=UTF8&s=books&qid=1176099235&sr=8-1

i would take pics of the book and upload them ... but thats illegal lol
so if anyone wants to borrow it feel free to ask its good literature

[1800DialKyle]

Yeah flip has a great book about turbos. My friend has a book about tuning that i read through. I think dominic has it. It is an awesome book.

But about the turbo thing. You can not really tell what the turbo will spool at unless you tell us what kinda motor/mods/ ect ect. a turbo will spool at different rates on different cars. for example you have a 1.8L honda motor and a 2.4L ka. the KA will spool a turbo a lot faster then the 1.8L will. So i mean you cant really just get a ball park spool rate with out giving a motor that it will go on. and there are 100s of types of turbos. By typical i assume you mean like a t25 or t28?

[Decker]

are you asking what the engine RPMs are at max spool OR the RPMs of the actual turbine?

[Casey]

Yeah flip has a great book about turbos. My friend has a book about tuning that i read through. I think dominic has it. It is an awesome book.

But about the turbo thing. You can not really tell what the turbo will spool at unless you tell us what kinda motor/mods/ ect ect. a turbo will spool at different rates on different cars. for example you have a 1.8L honda motor and a 2.4L ka. the KA will spool a turbo a lot faster then the 1.8L will. So i mean you cant really just get a ball park spool rate with out giving a motor that it will go on. and there are 100s of types of turbos. By typical i assume you mean like a t25 or t28?

ah so i read when i read all that info on turbos you sent in the links
hmm

well basically im trying to find out the rpm of the turbo because im looking to get a ratio of engine rpm to turbo rpm
3 liter dohc inline 6
pushing 600hp should yield a 60 pounds per minute of airflow... which i would then have to graph on one of garretts turbo graphs... lets say this one GT4088
http://www.turbobygarrett.com/turbobygarrett/images/catalog/Turbochargers/gt40_images/GT4088_703457_2_comp_e.gif

in order to gain 600 hp you need 60 pounds of air per minute... so you plot that point on the graph and the look at the boost pressure and what boos you need.
basically a huge turbo is required for HUGE hp gains...
so i still have no clue on spool rpm ...
hahah
lets say i got that one
with a 2jz-gte
i guess id just have to ask garrett what the rpm would end up being.
but anyways thanks so much for the info on turbos lol
muchneeded reading
im gonna re-read this turbo book i have. so when i get my 2jz-gte or ge ill know what turbo to get =D

[1800DialKyle]

o yeah so i totally mis understood the question at first. But as for what you are asking I am not sure. LOL

[Casey]

basically what im sorta thinkin about doing is finding the ratio of turbo rpm to engine rpm on a given turbo application
so i could find an optimal belt size if for some odd reason there was a pully on the turbo shaft... lol

[1800DialKyle]

basically what im sorta thinkin about doing is finding the ratio of turbo rpm to engine rpm on a given turbo application
so i could find an optimal belt size if for some odd reason there was a pully on the turbo shaft... lol

I see what you are saying but i have no idea how to find the answer you are looking for. I need to find the formula and i would need the given air ratios created but the engine which would yeild the rpm of the turbo.

[Casey]

yeah i know ill just figure it out when i make an application for the turbo.
thanks for the turbo info dude

[flip]

Yeah flip has a great book about turbos. My friend has a book about tuning that i read through. I think dominic has it. It is an awesome book.

But about the turbo thing. You can not really tell what the turbo will spool at unless you tell us what kinda motor/mods/ ect ect. a turbo will spool at different rates on different cars. for example you have a 1.8L honda motor and a 2.4L ka. the KA will spool a turbo a lot faster then the 1.8L will. So i mean you cant really just get a ball park spool rate with out giving a motor that it will go on. and there are 100s of types of turbos. By typical i assume you mean like a t25 or t28?

Yah the book i have is Maximum Boost as viper mentioned... :)

[Casey]

wut wut
great book
=D