[s-cars] 'The World's Biggest Intercooler Comparison - Part One' at autospeed.com

[mlp qwest]

Hum Calvin, ... would you believe size isn't everything?

Conclusions?

-  There are, in Australia at least, a heck of a lot of different IC cores
from a wide variety of vehicles;

-  "... One of the gruntiest production rotaries of all time is the 206kW
twin-turbo 20B triple-rotor, as fitted to the Mazda Cosmo.  the car is
fitted with the all aluminum intercooler seen here - and it's a beauty IF
YOU CAN STUMBLE across one.  Airflow is brilliant (bettered only by the
aftermarket and Series 6 RX-7 intercoolers) and its heat exchange properties
are comfortably in the leading half of the field...."  (That would be of the
@ 25 cores tested)   "... It's great for flow AND cooling.  If the Series 6
RX-7 is too marginal in heat exchange performance but you still want maximum
flow this is the intercooler to buy.  Be confident in using it on engines
making over 250kW (@ 335 bhp)
	IC Data,
	Tested Flow (in both A & B directions) @ 28"of H2O -> 283 cfm 3rd of 25
	Mass @ 3kg (9th / 25)
	Core dimensions/volume  32.3x17.0x6.5 = 3,569 cm^3

-  the Mazda RX-6 Series 6 13B twin turbo IC  "... pushing out a credible
190 kW (@ 250bhp), it (the motor) has obvious need for good intercooler
flow.  As such, the Series 6 RX7 intercooler uses larger diameter pipes
(size not given) and a relatively small core to achieve a brilliant flow
figure (310 cfm) - only the giant aftermarket intercooler beats it on the
flow bench.  If you want a cheap core with abundant airflow, this is IT!  On
the other hand, the series 6 RX7 core volume and thermal mass rate in the
lower half (17th and 19th of 25) of the field.  If you install a Series 6
RX7 intercooler...., make sure you add ducting, a water spray and maybe a
cooling fan - you'll have a top performer for applications in excess of 250
kW (335 bhp)"

	ÌC Data
	Tested Flow @ 28" @ 310 cfm (2nd overall)
	Mass @ 2.0 kg 17th/25
	Core 29.5cmx11.4x6.5 = 2,186 cm^3   19th of 25

As the Article is only Part One of at least a two part set, I suspect other
conclusions will have to wait for the next piece.  What's it mean to S-car
fans?  Well, you can go long, or you can go wide with an aftermarket IC
flow... or I guess like Pizzo you can always go Japanese.

HTH
mlp



~-----Original Message-----
~From: s-car-list On Behalf Of Calvin & Diana Craig
~
~So what's the summary of the results for those of us who don't pay for a
~subscription to this service?
~--Calvin
~