Single Turbo RX-7's Questions about all aspects of single turbo setups.

14 psi on twins and 14 on 60-1?

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Old Feb 20, 2003 | 08:01 PM
  #1  
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14 psi on twins and 14 on 60-1?

whats up
i have a pettit unlimited ECU on my FD and the car ran rich even at 14 psi on the stock twins.
if i run a 60-1 with a 1.0 A/r at the same boost level will i need fuel?
and what if i go with a 62-1 with a .84 A/R ?
thanks alot
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Old Feb 20, 2003 | 08:27 PM
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mjw
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From: LostAngeles
If you run a 60-1 at the same boost on that ECU.. *pop*.
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Old Feb 20, 2003 | 08:34 PM
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Re: 14 psi on twins and 14 on 60-1?

Originally posted by zooq
whats up
i have a pettit unlimited ECU on my FD and the car ran rich even at 14 psi on the stock twins.
if i run a 60-1 with a 1.0 A/r at the same boost level will i need fuel?
and what if i go with a 62-1 with a .84 A/R ?
thanks alot
Hey Zoog,

You are comparing apples to crabapples. They are both turbos but they do not flow the same amount of air at 14psi. The CFM is significantly different in terms of volume and density.

You are going to need more fuel, and less fuel in places. The single needs fuel in different places than the twins. Not to mention that lighting that fuel is different. Even more different if you're talking a ported engine.

Tony K.
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Old Feb 21, 2003 | 09:49 AM
  #4  
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From: Tampa
Re: Re: 14 psi on twins and 14 on 60-1?

Originally posted by Badog
Hey Zoog,

You are comparing apples to crabapples. They are both turbos but they do not flow the same amount of air at 14psi. The CFM is significantly different in terms of volume and density.

You are going to need more fuel, and less fuel in places. The single needs fuel in different places than the twins. Not to mention that lighting that fuel is different. Even more different if you're talking a ported engine.

Tony K.
i was just getting ready to say the same thing!!!
-Keith
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