There's a new (Marin County) Sheriff in town
Oct 16, 2011 8:33:56 GMT -5
Post by sigmfsk on Oct 16, 2011 8:33:56 GMT -5
Dec 2011 "Street Rodder" has a writeup on this guys car that has Doug's electric exahust cutouts - and an electric variflow muffler:
www.pertronix.com/prod/ex/varaflow/default.aspx
He must really like the option to change his exhaust note!
Dec 2011 "Car Craft" has blurb on these radiator hose adapters
from
www.jagsthatrun.com/Pages/Parts_TPI-TBI_HoseSplice.html
Hopefully I won't need them on my car, but it's cool to know that such things are easily available.
I did some looking on those Lincoln Mark VIII electric fans.
> I came across some very interesting test data that led me to
> believe that the Mark VIII fans cfm is more wishful thinking than
> actual truth. Don't get me wrong the Mark VIII and Taurus fans
> have cured a lot of cooling ills at an affordable cost but the real
> cfm is actually under 3000 cfm.
www.thehollisterroadcompany.com/MarkVIII.html
and then he points to this page:
forums.corvetteforum.com/c3-tech-performance/1816636-markviii-vs-spal-duals.html
with this graph:
and summary:
> [Lincoln Mark VIII fans] simply are not any higher rated than the
> [dual 11"] Spals and they pull about the same amperage draw.
Here's the dual 11" spal package they're talking about:
from
www.a1electric.com/Merchant2/merchant.mvc?Screen=PROD&Store_Code=AEOS&Product_Code=30102052
That Corvette page notes:
> The Spal package incorporates (12) twelve free flow flaps for
> driving at high speed.
which is a nice feature for me. The purpose of the shroud is to allow the fan to suck air through the radiator when stopped/at low speeds. When the car is traveling at highway speeds, the fans and shroud are just in the way. Having those flaps allows better flow through the radiator at high speeds.
Spal also makes a dual 12" setup:
www.a1electric.com/Merchant2/merchant.mvc?Screen=PROD&Store_Code=AEOS&Product_Code=30102130
The fast XFI has the ability to control a relay to control the fan:
----------------------
static.summitracing.com/global/images/instructions/xfi_ecu_operationmanual.pdf
6.2.13 Fan On Temperature (*F)
The ECU has an output to operate a cooling fan. This output (Pin B – found in the FP/FAN/
ESC connector on the harness) switches to ground and is wired to the negative terminal of a
relay to activate the fan. This parameter defines the coolant temperature that must be
exceeded to activate the fan. It needs to be set higher than Fan Off Temperature (*F).
6.2.14 Fan Off Temperature (*F)
This parameter defines the temperature that the coolant must go below to deactivate the fan. It
needs to be set lower than Fan On Temperature (*F).
-------------
SPAL makes a PWM controller
www.a1electric.com/Merchant2/merchant.mvc?Screen=PROD&Store_Code=AEOS&Product_Code=FAN-PWM-V3
but it needs a second relay when used with a second fan, and I don't know if I could use the FAST XFI coolant temp sensor to run both the XFI and the PWM controller. I think I'll just use the XFI on/off control.
www.pertronix.com/prod/ex/varaflow/default.aspx
He must really like the option to change his exhaust note!
Dec 2011 "Car Craft" has blurb on these radiator hose adapters
from
www.jagsthatrun.com/Pages/Parts_TPI-TBI_HoseSplice.html
Hopefully I won't need them on my car, but it's cool to know that such things are easily available.
I did some looking on those Lincoln Mark VIII electric fans.
> I came across some very interesting test data that led me to
> believe that the Mark VIII fans cfm is more wishful thinking than
> actual truth. Don't get me wrong the Mark VIII and Taurus fans
> have cured a lot of cooling ills at an affordable cost but the real
> cfm is actually under 3000 cfm.
www.thehollisterroadcompany.com/MarkVIII.html
and then he points to this page:
forums.corvetteforum.com/c3-tech-performance/1816636-markviii-vs-spal-duals.html
with this graph:
and summary:
> [Lincoln Mark VIII fans] simply are not any higher rated than the
> [dual 11"] Spals and they pull about the same amperage draw.
Here's the dual 11" spal package they're talking about:
from
www.a1electric.com/Merchant2/merchant.mvc?Screen=PROD&Store_Code=AEOS&Product_Code=30102052
That Corvette page notes:
> The Spal package incorporates (12) twelve free flow flaps for
> driving at high speed.
which is a nice feature for me. The purpose of the shroud is to allow the fan to suck air through the radiator when stopped/at low speeds. When the car is traveling at highway speeds, the fans and shroud are just in the way. Having those flaps allows better flow through the radiator at high speeds.
Spal also makes a dual 12" setup:
www.a1electric.com/Merchant2/merchant.mvc?Screen=PROD&Store_Code=AEOS&Product_Code=30102130
The fast XFI has the ability to control a relay to control the fan:
----------------------
static.summitracing.com/global/images/instructions/xfi_ecu_operationmanual.pdf
6.2.13 Fan On Temperature (*F)
The ECU has an output to operate a cooling fan. This output (Pin B – found in the FP/FAN/
ESC connector on the harness) switches to ground and is wired to the negative terminal of a
relay to activate the fan. This parameter defines the coolant temperature that must be
exceeded to activate the fan. It needs to be set higher than Fan Off Temperature (*F).
6.2.14 Fan Off Temperature (*F)
This parameter defines the temperature that the coolant must go below to deactivate the fan. It
needs to be set lower than Fan On Temperature (*F).
-------------
SPAL makes a PWM controller
www.a1electric.com/Merchant2/merchant.mvc?Screen=PROD&Store_Code=AEOS&Product_Code=FAN-PWM-V3
but it needs a second relay when used with a second fan, and I don't know if I could use the FAST XFI coolant temp sensor to run both the XFI and the PWM controller. I think I'll just use the XFI on/off control.