bigger turbos
 

hey guyz..whats the biggest you can go on turbos without modding the motor internals???...hmmmm

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 balls 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.

how far do you want to go? what mods do you have right now?

these blocks stock are good for around 600hp

go thru this it explains what turbos can get you to around that point

hmm..i thought we had talked about his before...and i was right 530's are some decently recomended turbo's....cool

:::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.

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....

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."

ok......see now your venturing very deep into turbos...the section i havent learned yet....go on.....lol
oh yeah and on a side note....zlover....how did you like the snow... z weather is goin FAST.

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.

covered? no garage randy??? and i was kidding about go on. i wasnt really gonna expect you to type a thesis on here.

im curious...i saw you posted that somewhere else on here, but never who it was, or anything else about the Z.

+1. thats why i asked for mods. though i should have been a little more clear. and while im asking again kevtt....have you even started your swap?

swap??? woah woah....so is he just building a TT motor while its out of the car? he has an N/A??? when did i miss this story? link? brief explanation? anything?

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

I'll see if I can find the info, but I highly doubt I'll be able to. If I recall correctly, the owner isn't a member of any of the forums; I only know about his Z from someone who posted his charts after he dynoed the car (I think it may have been dynoed by SGP, actually... I could be wrong though). It was right around that time that Wagz did 744.4rwhp, but since the guy wasn't as popular as Wagz (nor did he spend $60k on his car), it kinda got eclipsed by Sean's achievements.

if you dont know that stuff at least...your in over your head.....learn....dude...google turbos even. google turbo timers....anything....forums arent gonna hve basic info like that, only complicated more technical write ups...ponce you under stand turbo principles functions and general work process...you can read the write ups and try to understand...you have lots o work to do

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......

allright..sent it to kevin300z@hotmail.com if you can snwbrder...appreciate it

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...

go thru the link page. theres some usefull stuff in there

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

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.

hey kev....when you finish reading my master piece....let me know if it was helpful...id love to know if i have any writing talent...or atleast helped you...

Turbos turbos turbos
 

Since the Z sucks balls 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.

well for now i just want it to be a daily driver, and the ocacionally street race, no track will be done for now... and SNWBRD, your paper really helped thanks a lot man!

:048: your so very welcome...glad i could put it to use besides earning my a grade....that was rewarding enough.