Stock ECU versus Haltech E6X - 13B NA

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Nov 20, 2004 | 10:41 PM

#26

coldfire

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Quote:

Originally Posted by NZConvertible

A small compression change would not cause those symptoms.

yeah, i wouldn't think so, especially not 0.3 of difference. but if you were to run S5 NA ECU with S4 TII rotors, that is a considerable difference, so just wondering if a lot of the lack of performance is due to this. (hard to say because there are a lot of other factors). but i guess there is some truth in it since you get significant gains with an EMS...

Nov 20, 2004 | 10:55 PM

#27

RETed

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Quote:

Originally Posted by coldfire

Where'd you get 0.3 from?

There is a formula out there that can calculate the power difference.
I don't normally memorize this forumla since it really applies to NA applications moreso.

-Ted

Nov 21, 2004 | 03:06 AM

#28

coldfire

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Quote:

Originally Posted by RETed

Where'd you get 0.3 from?

There is a formula out there that can calculate the power difference.
I don't normally memorize this forumla since it really applies to NA applications moreso.

-Ted

no, i was referring to the difference in compression ratios.
S5 NA = 9.7 : 1
S4 NA = 9.4 : 1

9.7-9.4 = 0.3

and as for the difference between S5 NA and S4 TII compression,
9.7-8.5 = 1.2

which i think is QUITE a significant difference in CR...