68mm turbo civic?

Themegajosh09

New Member
I have a garret 68mm turbo. Has anyone ever turboed a b18c1 with a 68mm on low psi? I was just curious to people's opinions on this. Post an let me know what you think! Here is a crappy picture of the turbo compared to a 6x9
 

TheHatchGuy

New Member
5+ Year Member
i would think there would be some serious lag cause of the size and with low boost?
 


crash!

Avi, pull your socks up.
Registered VIP
Registered OG
5+ Year Member
10+ Year Member
i would think there would be some serious lag cause of the size and with low boost?
I was gonna say... that's a massive turbo for a stock GSR. Anything done to the internals?

That turbo is for like 600 hp...
 

2slo4u

wait4me
Registered VIP
Registered OG
5+ Year Member
10+ Year Member
im pretty sure its a ball bearing turbo so the low psi should be hit at a very low psi..but whats the fun in that...in my opinion, sell the turbo, buy a smaller one like a t3t4 .50-.60..install and have fun
 


crash!

Avi, pull your socks up.
Registered VIP
Registered OG
5+ Year Member
10+ Year Member
im pretty sure its a ball bearing turbo so the low psi should be hit at a very low psi..but whats the fun in that...in my opinion, sell the turbo, buy a smaller one like a t3t4 .50-.60..install and have fun
Agreed.
 

Themegajosh09

New Member
im pretty sure its a ball bearing turbo so the low psi should be hit at a very low psi..but whats the fun in that...in my opinion, sell the turbo, buy a smaller one like a t3t4 .50-.60..install and have fun
I have a smaller turbo also. I just thought it would be fun to try this one day as a project
 

Themegajosh09

New Member
I was gonna say... that's a massive turbo for a stock GSR. Anything done to the internals?

That turbo is for like 600 hp...
Nothing is done to it yet. But it will be built before I go forced induction, unless maybe I used the other smaller turbo I have.
 

crash!

Avi, pull your socks up.
Registered VIP
Registered OG
5+ Year Member
10+ Year Member
Nothing is done to it yet. But it will be built before I go forced induction, unless maybe I used the other smaller turbo I have.
You might want to at least do the rings if they're still factory. How much boost do you plan on running?
 

Themegajosh09

New Member
You might want to at least do the rings if they're still factory. How much boost do you plan on running?
If I leave it stock and use a small turbo I was thinking 6 psi.. But if I use a big turbo id build it and maybe just run like 12psi.
 

crash!

Avi, pull your socks up.
Registered VIP
Registered OG
5+ Year Member
10+ Year Member
If I leave it stock and use a small turbo I was thinking 6 psi.. But if I use a big turbo id build it and maybe just run like 12psi.
What size is the small turbo?
 

Blood_Shot

Banned
Registered VIP
You should have a hp level in mind and not a boost level. That big turbo on 6psi is way out of its efficiency range and will lag and not be as fun as the small turbo on the same amount of boost. You know that picture of the turbo is 5 years old, do you know what kind of shape its in now?
 

Themegajosh09

New Member
You should have a hp level in mind and not a boost level. That big turbo on 6psi is way out of its efficiency range and will lag and not be as fun as the small turbo on the same amount of boost. You know that picture of the turbo is 5 years old, do you know what kind of shape its in now?
The picture of the turbo was taken yesterday at around 4pm lol. The date is off on the camera. He asked boost level so I told him.
 

Blood_Shot

Banned
Registered VIP
The picture of the turbo was taken yesterday at around 4pm lol. The date is off on the camera. He asked boost level so I told him.
either way you still should have a power number in mind, and how you want your car to behave. Laggy all top end go with the big turbo, larger powerband and better response youll want the smaller turbo. Like Crash! asked, what "little" turbo do you have.
 

Themegajosh09

New Member
either way you still should have a power number in mind, and how you want your car to behave. Laggy all top end go with the big turbo, larger powerband and better response youll want the smaller turbo. Like Crash! asked, what "little" turbo do you have.
My hp number is around 320 that I want to achieve. I want to keep my car a daily driver though. But I don't really want it to spool until around 5k because I'd like to be able to drive under boost on the interstate. I'm actually not sure what the smaller turbo is that I have but it's about the same size as a Sti turbo... My
Dad is a mechanic (Forman) so he gets turbos for free that are in great shape and brings them home.
 

2slo4u

wait4me
Registered VIP
Registered OG
5+ Year Member
10+ Year Member
Well a small turbo will spool pretty fast. And if you don't want to start spooling till 5k it's gotta be either a huge turbo non dual ball bearing. Maybe a .60ext t3t4 turbo. But then you are going to have to build the car to take the high rpm power band. 3000 rpm of power is very very limited. You don't really have to worry about about being in boost either because boost is built by vacuum and if you don't press on the gas hard you won't be in boost.
 

Themegajosh09

New Member
Well a small turbo will spool pretty fast. And if you don't want to start spooling till 5k it's gotta be either a huge turbo non dual ball bearing. Maybe a .60ext t3t4 turbo. But then you are going to have to build the car to take the high rpm power band. 3000 rpm of power is very very limited. You don't really have to worry about about being in boost either because boost is built by vacuum and if you don't press on the gas hard you won't be in boost.
That is very true never thought about it only spooling when I give it has and not just when my rpm is high.
 

crash!

Avi, pull your socks up.
Registered VIP
Registered OG
5+ Year Member
10+ Year Member
That is very true never thought about it only spooling when I give it has and not just when my rpm is high.
Well when you initially give it gas that's when it starts spooling, yeah....
 

mymmeryloss

RHD is where its at
Registered VIP
Registered OG
5+ Year Member
10+ Year Member
Twin turbo it and use the smaller turbo as a helper.

Primary and secondary injectors will be needed...
 


Top