Sorry to leave you in the dark for so long, but I haven't done anything mayor on the car. Just driven it daily and had some winter fun
. Man the 4WD is like having super powers
in the wet and snow.
I did replace the head-unit with a car PC I've been building for years now. Will show it off, no worries.
bhan wrote:
Tom, very cool read, you really thought about everything. Have you dyno your Engine? Like to see the Results. Do you have any Video. Love to see it.
Except for a NA tuning session, haven't dyno-ed it yet. And I haven't really tuned it fully, just enough to get it reliable enough for day-to-day use (and except a burned out FI relay (my fault for not putting the COP coils on a separate relay) hasn't failed me).
I have to sort out the boost control properly, then do some more road tuning, and then I'll do a dyno session. Stay tuned
.
TheSilverBullet wrote:
chense, very nice build ! i wish i can be as good mechanic as you one day.
Thanks!
And don't worry, when you're doing something for a while you're bound to get good at it. After 10000 hours or so, they say.
t3 ragtop wrote:
it would seem that heat soak would affect an air to air i/c just the same as an air to water system. the fact is that a fan on the air to water core to provide active cooling would help reduce heat soak somewhat. i'm surprised that it would be as noticeable as you suggest it is.
tom, what size heat exchanger did you use? electric fan on the heat exchanger? i recall the parts to be a 30 row radiator and a 7" fan.
i backed up my plan a little bit and will use a 12" x 12" x 2" heat exchanger on the i/c system to allow a larger volume of water in hopes that it will slow down the heat soak. i'll use the 30 row heat exchanger i originally spec'd for the i/c system as the oil cooler. the bigger i/c heat exchanger will get a 1600 cfm 12" fan and the oil cooler will run an 800 cfm 7" fan. both of those will get relay controls triggered by the megasquirt using the coolant temp reading set to around 160* f. that way the engine will use the additional heat to help get the coolant temp up faster before the active controls kick in. i'm hoping that by tripling the thermal mass of the i/c coolant it will provide better stabilization of the iat while the car isn't moving.
it's time for new pics.
I've sorted the "quick" heat soak by connecting the IDLE valve to the IC stream (was sucking underhood air before, and thus the IATs were wild in traffic).
The heat exchanger is roughly 650x200mm (25x8 inches), fits snuggly in the bumper, no fan on it yet:
Still getting 10-12 degC above ambient while cruising, up to 20deg C above ambient in city traffic, but with coolant leaks/some air still trapped in the system.
Good call on larger volume heat exchanger Richard, that can only be good. I've been thinking about a coolant reservoir for the water IC (I can only put about 2L of coolant in my system), but I'll get this running properly first, maybe fit a fan and see how far can I take it. I'm pretty happy with it as it is now
, IATs stay pretty constant.
alexsan wrote:
goog job!!! phoenix swift! good upgrades!!
Thanks!
Cheers,
Tom
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Now I am looking firstly to do it turbo, secondly I am searching for AWD Tranny. I'll be thankful if anyone here can help me find AWD trany (Y)