How much boost can it hold?
12-02-03, 02:44 AM
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How much boost can it hold?
Hi I am pretty new here and I am in need of some help.
I know this is the 3rd gen part of this web sight but i though you guys could help me anyways. I have a second gen. and I just got a 1990 cosmo motor that I am going to transplant. It is the 13b-re, twin turbo. I think this motor is very similar to the 3rd gen motor. Thats why I am asking this question here.
My motor came with no turbo so I am planning on using a t4 turbo with it. I wanted to know how much boost these motors can generaly take So I can buy the correct spring size for my waste gate. I dont want to overboost and blow up my motor.
Any help would greatly be appreciated. I have done much searching on the internet but I think this is the best place I have found.
I am looking forward to your answers.
Thanks,
Joe
I know this is the 3rd gen part of this web sight but i though you guys could help me anyways. I have a second gen. and I just got a 1990 cosmo motor that I am going to transplant. It is the 13b-re, twin turbo. I think this motor is very similar to the 3rd gen motor. Thats why I am asking this question here.
My motor came with no turbo so I am planning on using a t4 turbo with it. I wanted to know how much boost these motors can generaly take So I can buy the correct spring size for my waste gate. I dont want to overboost and blow up my motor.
Any help would greatly be appreciated. I have done much searching on the internet but I think this is the best place I have found.
I am looking forward to your answers.
Thanks,
Joe
12-02-03, 03:45 AM
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15 psi on pump gas, 20+ psi on race gas
You will need a standalone ecu with fuel upgrades to run a single turbo on that motor.
Search through the single turbo forum....
You will need a standalone ecu with fuel upgrades to run a single turbo on that motor.
Search through the single turbo forum....
12-02-03, 06:58 AM
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I've read things like the internals can with stand up to something insane like 39psi...although I've never heard of anyone running that much boost.
How much boost will be determined by the turbo and the fuel to support it. I think you could run more than 15psi on pump gas with a single.
How much boost will be determined by the turbo and the fuel to support it. I think you could run more than 15psi on pump gas with a single.
12-02-03, 08:03 AM
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I guess my question would be what will the car be used for? Is it going to be simply a drag car, a street car, Auto-X or what are your plans for it. If you let us know that we can probably help more.
-Nic
-Nic
12-02-03, 10:30 AM
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Like rynberg said.
Also you got to keep in mind that even if you upgrade the ECU, the injectors will be maxed out @ 14.7psi (if they are same as FD's), which means you may still blow your motor up by running too much boost unless you go with bigger inj.
There are few more things to do if your planning to run higher boost.
Also you got to keep in mind that even if you upgrade the ECU, the injectors will be maxed out @ 14.7psi (if they are same as FD's), which means you may still blow your motor up by running too much boost unless you go with bigger inj.
There are few more things to do if your planning to run higher boost.
12-02-03, 01:15 PM
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Originally posted by nillviod
Not sure if the fuel pump is an issue .. it would be for a third gen. Bigger injectors and an ECU to control em' would be your main concern imo.
Not sure if the fuel pump is an issue .. it would be for a third gen. Bigger injectors and an ECU to control em' would be your main concern imo.
The fuel pump will become an issue if you are running much higher than 14psi. Basically you should switch it out at the same time you're getting new injectors.
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