Sindregutt

Hi!

I need to find a turbo that fits my application. Ive been looking for a turbo giving me 400-500hp on a 13bRE engine. I dont want mutch lag so i may reduce my hp-aim?

Anyway, what can i read out the compressor map below?



Thanks,
Sindre

TehMonkay

iTrader: (-1)

WTF that turbo is huge.

GT4082 will give you 500HP

A good 60-1 setup will give you 400 hp.

Pick something between those two.

Keep in mind these power figures im giving are ported engines.

Edit: That turbo will give you about 600 or so HP I think.

Sindregutt

Okey, well i just used that compressor map so you guys could tell me what i can read from it.
I really want a gt35r turbo but i also want T4 and Vband.
What would a good 60-1 setup be? Will the turbonetics T61 turbo work okey?

The 13bRE got some nice stock ports so i wont be porting it this year if it holds together..
I also got a spare engine. Its a ported s4 t2 engine, but i cant boost mutch on it because i havnt figured out how to reinforce it..

Sindre

TehMonkay

iTrader: (-1)

You don't need to re-inforce it from what i hear. If you are that worried you will only need a S5 rear iron.

How many people here are running turbo S4s with OVER 400HP?

There is a good thread on reading compressor maps stickied int he single turbo section.

Also you can search the archive for a good post on 60-1s.

You don't have to port, but it is nice, bigger exhaust ports will give you quicker spool and less lag.

Sindregutt

okey, thanks.. ill do some more research!

Sindre

J-Rat

iTrader: (2)

That turbo isnt really all that.. Its not even capable of 500 HP on a rotary in peak efficiency.

sublime42o

also, looking at the compressor map doesn't really help you out unless you have at least some idea of the volumetric efficiency of the engine. Without knowing the VE of the engine you wont be able to decide, by looking at compressor maps, which turbo really will work the best with a given engine. Anybody know of an approximate VE on a stock TII? Other than compressor maps, I'm sure there are a lot of people on the forum that will let you know how the certain sized turbo that they chose works out for them.

sublime42o

one good way to reinforce the engine is a good stud kit. http://www.turblown.net/ sells a 13B stud kit.

Copied from turblown.net:

-Aircraft quality forged steel
-Hot rolled threads
-195000 psi tensil strength
-No maching is required
-Works with OEM or aftermarket flywheels
-All necessary harware included
-Replaces all 16 inner tension bolts

-More accurate tensioning of engine
-Studs will not yield(stretch) like the factory bolts, which act like bubble gum - high boost engine expansion reduced
-Factory bolts twist while torquing and eventually untwist overtime
-No friction at threads from twisting, not just reducing wear of threads, but friction gives inaccurate torque readings

-Less chance of bolt breakage from vibration or high rpms
-Superior quality material

$350 shipped

gxlbiscuit

i have cracked my rear plate before im at 350ish maybe.. never dynoed i know my cars decent fast. i have a wideband and more than enough fuel.

J-Rat

iTrader: (2)

I ran a stockport S4 up to 437 and didnt crack the plate. It failed when the wastegate failed.

Houstonderk

iTrader: (3)

Yea im getting that stud kit put in my S4 tii bridgeport engine getting built from iceblue performance. Seems like it will help the torquing of the plates alot which would reduce the chance of the plate breaking.

87 t-66

iTrader: (133)

https://www.rx7club.com/spec-tuning-154/how-size-matters-478915/

Sindregutt

Thanks for alot of great inputs!
Ive heard that stud kits arent THAT good on a streetcar because of the temp changes.

Im looking at used turbonetics 60-1 turbos. Since im not going to pass 400rwhp this year i hope the 60-1 is big enaugh. As i got a 13bRE engine that im gonna run this year, but i also got a streetported s4 that i can use if the RE fails. Im not going to drive the car THAT mutch on the road so maybe the stud kit is the way to go.
Turbo`s ive been looking at:

http://cgi.ebay.com/ebaymotors/NEW-T...90396119QQrdZ1

Where can i find good turbonetics turbos? I friend of mine told me that a 60-1 with Q trim is good enaugh for 400

Sindre

ENZO182007

http://forcedinductions.com/help.htm gives you cfm of lots of turbos and the 79 ci 13 b this might help a lil but i wish i had somtthing like this chart for a ported motor

J-Rat

iTrader: (2)

That turbo, besides the fact that it DOESNT EXIST on the turbonetics site, has a .58 AR turbine. YOUCH!!!!

I am guessing that its a 62-1 compressor which will get you over 400, and is alot similar to the turbo I am running.

ENZO182007

and who wouldnt want 400 or more whp . Thats awsome self control . j- rat said his blowzilla ran out of steam so i had to go out and get a mp t70 and my cars not even together yet
-Jarrett

TehMonkay

iTrader: (-1)

EBAY TURBOS ARE SATAN!
Do not buy them unless you want compressor wheel blades raping your housings and apex seals.

Sindregutt

ill buy a new turbonetics 60-1 or maybe a little larger. I only need to know what trim etc...

SIndre

TehMonkay

iTrader: (-1)

Type in google: "60-1 site:rx7club.com"
First page
https://www.rx7club.com/sitemap/t-210078.html
Read the third post down.

Sindregutt

Gooogle <3 heh,
Nice thread!
I think ill go with a 60-1, 1.00ar, p-trim, wet turbo this year..

Sindre

J-Rat

iTrader: (2)

Lots of luck.. A 60-1 wont get you 500 HP on that motor. If it does, its gonna be a STRETCH!

Sindregutt

if i go for a 60-1 ill maybe hit 350rwhp with my setup. I was going to buy the gt35r but i dont know if ill do it since i aint got the time to rebuild and port the 13bRE engine.
Is this an okey setup?
Turbonetics 60-1
Dynamic seal
60-1/62-1 (havnt decided yet) ?
q-trim
.96 ar tang open (what is the difference from on center / tangential exhaust?)
No BB :S

Sindre

J-Rat

iTrader: (2)

sure! that 60-1 makes a fine street turbo. It should be able to hit 350 for you.

On center vs. tang:

The difference is the way that they mount in the engine compartment and the manner in which the exhaust is evacuated from the housing. The "on-center" uses a standard T4 inlet flange, as well as a four-bolt discharge flange. The reason that it is called on-center is just that, the housing sits right on top of the inlet flange.

The "tangential" turbine housing differs both in form and function. The housing sits off to one side, similar to that of a snail shell. The other difference is that to connect an exhaust down-pipe, a V-Band flange-and-clamp assembly must be used. This setup sometimes proves to be more convenient for race applications. The "tang" housings are 4 to 5 percent more efficient in flow. Neither the "on-center" nor "tangential" perform better than the other. The decision to use one over the other should depend completely upon the installation of the turbos in the engine compartment.

Sindregutt

Okey thanks. Ill go for the tang then.

Sindre

Sindregutt

Btw, is it stupid to buy a divided tang when i aint got a divided manifold? I was just thinking it would be smart to have the divided one if i change the manifold in the future..

Sindre