Is this turbo worth installing?

[jrpmp69]

I just bought a Garrett t3/t4 at a very good price, but I don't know if it will be worth even bothering to install it on my 98 eclipse gst. I'm looking for 12 second 1/4 mile times with the mods listed in my vehicle profile, just upgrading my injectors to Evo VIII 560cc injectors and either slicks or drag radials.

The turbo specs are:

Garrett 54mm compressor wheel w/ .60 a/r cover
Stage 1 turbine wheel w/ .63 a/r housing
rated at 300-475 hp

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[perley03]

560cc/min injectors are not going to be big enough for that turbo. I calculated with 660cc at 37psi fuel pressure with 80% D/C, with turbo maxing at 22psi, you will be making ~403 hp. With 720cc, you will be making about ~440hp at 25psi. All this tuning is with an 11:1 AFR also. I used the spreadsheet tuning table, i downloaded it somewheres in this forum. If you need the link i can send it to you if you need it.

 

[jrpmp69]

how much boost do you think i can run on this with the 560's and base fuel pressure set to 43psi on 100 octane?

 

[perley03]

With 560's at 43psi on 100 octane at 100% D/C you will be pushing ~15psi. If you are using an SAFC to tune with, set your corrected airflow to -25.5%, and if your MAF is hacked then that would be ~ -20%. Hope this helps, and good luck.

 

[CanadianTSi]

Don't forget a Custom Manifold and o2 housing will also be needed.

 

[xveganxcowboyx]

43 psi of fuel pressure, not boost.

 

[perley03]

43 psi of fuel pressure, not boost.

Read the full sentance:

how much boost do you think i can run on this with the 560's and base fuel pressure set to 43psi on 100 octane?

I replied with

With 560's at 43psi on 100 octane at 100% D/C you will be pushing ~15psi.

He asked how much boost he could run on 43psi of fuel pressure on 100 Octane fuel. Obviously he would know that he 43psi would indicate fuel pressure, and not boost.

 

[xveganxcowboyx]

Oh, you're right. Sorry. I miss read it. I'm a little tired after work....

 

[jrpmp69]

Don't forget a Custom Manifold and o2 housing will also be needed.

I have a tubular manifold with an external wastegate and an o2 sensor housing for a 4 bolt housing, the only problem is that this turbo has a 5 bolt housing, Do you think I can just drill and tap a hole where the 4th hole would go and weld the hole shut for the internal wastegate?



Do you guys think this turbo is capable of doing 12's on a fwd with mild tuning? Or do you think i should sell it and buy a bigger turbo such as a 60 trim or 60-1?

 

[perley03]

With the appropiate mods, i highly think this turbo will yield high to mid 12's on your GST. Bigger injectors, a nice tune on 20+psi, maybe some water/meth injection, and some DR's or slicks would be a fun ride down the 1320. Hell, it even would be a sweet street car if you could run 20psi on pump fuel
All in all, i think you are heading in the right direction. This is not a monster turbo, but will yeild high results if used properly. Get yourself a manifold, wastegate and downpipe setup, slap it on, and see what it will do.

 

[jrpmp69]

With the appropiate mods, i highly think this turbo will yield high to mid 12's on your GST. Bigger injectors, a nice tune on 20+psi, maybe some water/meth injection, and some DR's or slicks would be a fun ride down the 1320. Hell, it even would be a sweet street car if you could run 20psi on pump fuel
All in all, i think you are heading in the right direction. This is not a monster turbo, but will yeild high results if used properly. Get yourself a manifold, wastegate and downpipe setup, slap it on, and see what it will do.

This car is my daily driver. I will probably be running 100 octane all the time if I do install this turbo.

Water/Meth injection is going to be my next mod, that way i can keep knock to a minimum.

 

[jrpmp69]

Is there such a thing as Garrett International turbos?