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RX-7 2nd Gen Specific (1986-92) RX-7 1986-92 Discussion including performance modifications and technical support sections.

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Old 06-23-2009, 10:25 PM   #1
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Summary: Coolant Temps go down, AIT's go down, Spool time goes down, More heat rejected through efficient means and further able to be used down the exhaust stream (another turbo if you wanted).
I doubt this makes a significant difference.
I'd be surprised you get 1hp out of the whole ordeal.


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Old 06-24-2009, 02:46 PM   #2
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Originally Posted by RETed View Post
I doubt this makes a significant difference.
I'd be surprised you get 1hp out of the whole ordeal.


-Ted
I wouldn't imagine HP would be measurable at all, but allowing the exhaust gases to travel to the turbine directly and not get rejected through the cooling system will increase spool response, also increasing the temperature and pressure differential of the turbine. Though as you said I doubt it would be significant if at all.
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Old 06-24-2009, 10:29 PM   #3
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Quote:
Originally Posted by RETed View Post
I doubt this makes a significant difference.
I'd be surprised you get 1hp out of the whole ordeal.


-Ted
Quote:
Originally Posted by vex View Post
I wouldn't imagine HP would be measurable at all, but allowing the exhaust gases to travel to the turbine directly and not get rejected through the cooling system will increase spool response, also increasing the temperature and pressure differential of the turbine. Though as you said I doubt it would be significant if at all.
It's a shame teddy put me on his ignore list for disagreeing with him. He might have learned something. Such as my logged 4* DECREASE in coolant temps..... which, btw, were down to 168* this morning on the cold drive out to PA
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Old 06-25-2009, 02:53 AM   #4
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Yeah, and if you cannot comprehend what I just said...
I claimed that HORSEPOWER GAIN (or loss) is going to be insignificant.
Your minor change in temperature can be also due to other factors...hell, I bet the sensor deviation is within those ranges.

Besides, you just plugged up ONE way the exhaust gets through to the intake manifold.
You do realize that the exhaust gases still get around the exhaust sleeve by the leading edge, right?
Mazda designed the EGR system to be like that.

You're might be onto something significant, but don't pat yourself in the back too much yet...


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