Hey BOOST experinced or any veterans

I wonder what kind of turbocharger will fit for 2.4 L cavalier GT30R or GT35R or what else ? I will pleasure if u help me out ! Thanks

I would go GT30 for the normal to high power build. The GT35, if your going to be going Crazy with the build. other wise theres no need for it.

KEN 5.7 ------ > Thanks buddy . for GT35R i have to rebulit my engine or what else u mean ? or have to buying alot of turbo kits ?

Well the GT35 is a large turbo and to run it in its Efficiency range you will have to be running some pretty high boost, which will require a pretty tough engine. Just stick with the GT30 and you will be happy.

okay thanks again ken for your helping

You'll need at least a GT42R for a 2.4L.






BTW, i can think of a single 2.4L that has ever made enough power to max out a GT30R.............


- 93 mph in the 1/8 mile
Member of J-Body Of Michigan.

Skilz10179 ------ > Thanks for your help. because i m maybe to buying turbo but i need too know what kind turbo i need but u said GT42R at least

I was being sarcastic when i said the GT42....

When you asked "what kind of turbocharger will fit for 2.4 L cavalier GT30R or GT35R" I thought it was kinda funny.

GT30R can support up to 500whp.
GT35R can support up to 575whp.
GT42R can support up to 800whp.

Unless you honestly think you're going to make over 400whp all of those turbos are way too big.......


- 93 mph in the 1/8 mile
Member of J-Body Of Michigan.

I can tell you one thing. the GT30 spools like a bat outta hell at even 12lbs... It's teh sex.


-Trailblazer SS - not so custom 6.0L - custom intake - custom tune
- (1) 2.4L on an engine stand (1) blown trans (2) good quad trans (1) eco trans = party

I <3 Skilz......






SPD RCR Z - '02 Z24 420whp
SLO GOAT - '04 GTO 305whp
W41 BOI - '78 Buick Opel Isuzu W41 Swap

How do the turbos mentioned relate in size to a Turbonetics 60-1, that's what I want to use on my turbo 2.3/2.4 hybrid, will this turbo be too big?


2000 Z24 5spd header & catback for now.

A 60-1 is also a very big turbo. It can support up to 575hp like the GT35R but with a slower spool.


- 93 mph in the 1/8 mile
Member of J-Body Of Michigan.

Thanks Skilz, but why would the 60-1 have a slower spool up time than the GT35R is it because the GT35R has ball bearings? And if so would a 60-1 with ceramic ball bearingss spool up just as quickly?


2000 Z24 5spd header & catback for now.

if you want to make decent numbers why not just go with a t3/t4 60 trim with .63 or .82 ar



2007 GM Tuner Bash...HELL YEA
PA,MD,NJ,DE,NY and all states north caravan

Dale Young wrote:Thanks Skilz, but why would the 60-1 have a slower spool up time than the GT35R is it because the GT35R has ball bearings? And if so would a 60-1 with ceramic ball bearingss spool up just as quickly?

Just like you said, the GT ball bearing turbos will always spool faster than traditional journal-bearing turbochargers of a similar size.


- 93 mph in the 1/8 mile
Member of J-Body Of Michigan.

hey man,

like skilz said, the turbo's you are talking about are gunna be a little on the big side for what your building. im not trying to be ignorant here but you if your not aware of how to size turbo's, i would suggest that you find someone help you do it. if you dont size your turbo correctly for your application your gunna end up with poor performance. bigger is not always better, especially with turbo's. basicaly you size a turbo off of the amount of power that you want to make with the engine you are building. you do this by calculating the amount of airflow needed to make the target horsepower for the engine you are installing the turbo on and then picking a turbo from information given on flow maps that you can find on any dealers website. if you dont understand how to ready turbo maps, do so cause it makes a world of difference. if you go to garrett's website, they have a very informative reading selection that gives you the basics of turbos, how they work, and how to size turbo's and ready flow charts. other things come into play also such as what kind of rpm's the engine is going to run at, what type of driving the car is gunna be used for "street, strip, daily driver, etc." theres alot of critical info that goes into sizing the correct turbo for your applications from the size of compressor and turbine housing you use, to the trim and wheel you use. all im saying is be smart about your situation and get some help from someone if your not sure. but yes, i would definately recomend the gt30 "if you can afford it", if not a correct T3/T4 would do the trick. good luck

Thanks Daniel I appreciate your input and I will consider the GT30 however I did speak to a Turbonetics tech and told him my goals 500 - 550 hp and told him I was considering the 60-1 based on the airflow needed to make my target hp. He concoured that I could do it with a 60-1 or a T3/T04e 60 with a stage 3 exhaust wheel, so it's not like I just pulled some turbo out of mid air, but most of the turbos I see people use on these engines don't reach the hp/tq levels I'm looking for so I choose one that would. As for use, my Z24 is my daily driver and because I don't want to turn it into a drag only car I'm willing to deal with a little lag because I want more mid to topend power and pull. That way it's eaiser to get the car hooked up and moving instead of just spinning the wheels.


2000 Z24 5spd header & catback for now.

T3 Super 60 FTW!

Would the folks running turbo motors chime in please, how many are making 350 whp, 400 whp, 450 whp or 500 whp? Most of the people on this board that I've seen post their dyno sheets are making less than 300 whp about 5 or 6 that are in the 400s and I'm not knocking those folks but I want to see if I can make 500, and if not let the chips fall where they may. Because when I first joined the org I asked if was possible to make 500 with a built ( forged & cryoed ) bottom end and a ported 086 HO head, intake & w41 cams with a turbo and man you should have seen and heard all of the nay sayers. I'm sorta doing it just to prove that it's possible on a daily driver, that's why I don't want a small fast spooling turbo that will kill the hp/tq on the topend. The best thing about going turbo is you can always turn the boost up or down as the need arises to suit your needs at the time.


2000 Z24 5spd header & catback for now.

I should start making count to the number of times I've heard you write something to the effect of "I am planning on making 500-550hp on the street with a turbo ld9 with an 086 head, H.O cams...(so on and so forth)"......lol

But seriously, Dale. No matter where you spool at, with 500+ whp in a FWD car on the street... traction is going to be a bitch and a half.

On a side note, you are 44...what exactly do you have to prove to whom? I'm less than half your age and see plenty of modified Hondas, Suburu's, Mitsu's and don't feel threatened by any of them. They simply purchased an easier patform to work on, thats all. With enough money, sure, any FWD car under 3K pounds with any 1.6L+ motor can run 10's or 11's (given that the Coefficient of drag isn't worse than the 1st and 2nd Gen J-bods).


Sorry if it sounds like I'm flaming you, but I'm sincerely trying to understand your motive.


-

"Youth in Asia"...I don't see anything wrong with that.

Brian you are most definetly entitled to you opinions about me without knowing me, but to me the purpose of a forum such as this is for people to bounce ideas and questios off of and to help each other attempt to reach their goals. However more often than not what happens is someone comes here with a thought, idea or question and instead of getting any help they are ridiculed or critisized because they think outside of the norm or box.
My philosiphy on car modding or building is simply this if it needs to be replaced or rebuilt then upgrade to the best parts available that you can afford. And as far as engines alway build to the maximum you can get out of it, so I'd rather take an older car and pay cash for it then use my money to modify it to my liking. I do this with all of my cars, so when I first got my Z24 I wanted to rebuild the suspension, brakes and drivetrain, so I came here and asked a simple question "is it possible to make 500 flywheel hp with a built 2.4 with a HO head, intake and a turbo". And instead of getting much help most of the responses were negative like yours and that motivated me to go with my ideas and show all of the " know it alls " that they don't know as much as they think they do.
I'm going to build my turbo motor anyway it in the shop right now and my stainless turbo header should be done by the end of January so we'll see when it's done whether I reach my goal or not and no matter where the power falls I'll have one of the fastest Z24's in my area.


2000 Z24 5spd header & catback for now.