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Nibbles

Post subject:

Posted: Sat Aug 15, 2009 9:49 pm

Group B

Joined: Sat Sep 02, 2006 3:13 pm
Posts: 3679
Location: Bournemouth
Car Model: None

Quote:

very important -> the area where the bonnet ends is a area with over pressure, don't lift the bonnet as air will flow in the engine bay, this raise the pressure in the engine bay and less air can flow trought the radiator package!!!

Do you mean at the back of the bonnet by the windscreen ?

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TrackToyFour

Post subject:

Posted: Sun Aug 16, 2009 11:39 am

Club Staff

Joined: Wed Jul 13, 2005 12:06 am
Posts: 4743
Location: Perth, Western Australia
Car Model: ST205

Here's a pic of a Time Attack Mitsubishi Evo carbon bonnet raised at the rear to assist the extraction of hot air from the engine bay

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GT4DC Chairman
1994 Toyota Celica GT-Four ST205WRC JDM 269bhp @ 0.9bar
1994 Toyota Celica GT-Four Special GT 590bhp @ 1.8bar
1989 Van Diemen RF88/89 Formula Ford 1600
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Sunny

Post subject:

Posted: Sun Aug 16, 2009 6:21 pm

WRC

Joined: Tue Dec 09, 2008 6:51 pm
Posts: 1397
Location: Austria
Car Model: None

Hi,

yes the area between bonnet and windscreen

not good for the EVO, look to rally cars, do you saw only one car that has the bonnet lifted?

really, i got the knowledge from a guy with 30 years of working by TTE, i trust them
every tip that i have realized on my car changed it a bit

update for wolf:

119°C
by driving rally-cross

and also raised my knowledge, i reach those hot oil themp. slower when the licence plate is off

with: 3 rounds
without 6rounds

need to mount a oil cooler :lol:

and, does anyone know where i can buy cheap spal fans and what kind of fan should i choose (engine and air con.)

greetz

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KEEP COOL UNDER PRESSURE

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Nibbles

Post subject:

Posted: Sun Aug 16, 2009 8:15 pm

Group B

Joined: Sat Sep 02, 2006 3:13 pm
Posts: 3679
Location: Bournemouth
Car Model: None

Good place for spal fans in UK is fereday cars

http://www.feredaycars.co.uk/everything ... fanidx.htm

Avoid cheap ebay ones that is why I had overheating problems in Switzerland.

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Wolf_Tm

Post subject:

Posted: Mon Aug 17, 2009 6:59 am

Group N

Joined: Sat Apr 01, 2006 7:43 pm
Posts: 398
Location: Parma - Italy
Car Model: None

Sunny wrote:

update for wolf:

119°C
by driving rally-cross

and also raised my knowledge, i reach those hot oil themp. slower when the licence plate is off

with: 3 rounds
without 6rounds

Sunny, please... no more updates! :lol:

When I see your numbers and your way to test and to log them, I stare a bit...
this is not HOW to do it properly.

I NEVER trusted ANYONE:
friends, mechanics, "ex-TTE" guys, or "ex-Ferrari F1" guys (the most here....), or "ex-WRC friend" ecc ecc. that ANYONE of WE all had !

I always tried to get info by myself in the most scientific way, so with MANY sensors, ALL logged in my ecu to get REAL data I could compare:

- I made the louvred bonnet vent FIVE years ago, and it made NO DIFFERENCE in my ecu loggings (this is because, with bonnet rear sealed, the air must escape from the vent in any way)

- it made a 2 C. oil temp difference only when the louvred was at least 5 centimeters deep, but I removed it to make room for the turbo I have now

- unseal and raise the rear of the bonnet decrease the oil temps of 7/8 C.

This is what it came out from my test, if you trust them... if you won't, no problem!

Bye.

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Wolf_Tm
TM 250 enduro 2 stroke
GT-four ST205 Snowy White with selfmade 3SGTE v4.1 - [2.34kg/bhp DynoDynamics]
http://www.youtube.com/WolfTm250
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Sunny

Post subject:

Posted: Mon Aug 17, 2009 5:05 pm

WRC

Joined: Tue Dec 09, 2008 6:51 pm
Posts: 1397
Location: Austria
Car Model: None

Hi,

got it wolf :lol:

as i drive with OEM ECU, i have no chance to log any data

i only can use my oil-themp. display and OEM water-needle, to see what they do

/EDIT

CdB, thanks
what kind of diameter should i choose?

greetz

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KEEP COOL UNDER PRESSURE

street legal?.....perhaps in tschibuti

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Muddy Water

Post subject:

Posted: Fri Aug 28, 2009 11:03 am

Club Staff

Joined: Mon Mar 26, 2007 5:53 pm
Posts: 1736
Location: Another Shire County
Car Model: ST185

Just a quick update.
I did an open pit lane track day at Snetterton yesterday.
I was doing approx. 4-6 laps at a time with approx. a half hour break in between.
Here are the temps I saw:
Oil temps - maximum 112 deg C
Water temps - maximum 108 deg C.

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1990 White UK Celica ST185 - Project DTM
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TrackToyFour

Post subject:

Posted: Fri Aug 28, 2009 1:26 pm

Club Staff

Joined: Wed Jul 13, 2005 12:06 am
Posts: 4743
Location: Perth, Western Australia
Car Model: ST205

Good feedback Nigel. Any idea on plenum temps? in my experience that is the biggest worry particularly with an ST205 running ~1.2 bar and 300bhp on track.

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Muddy Water

Post subject:

Posted: Fri Aug 28, 2009 4:10 pm

Club Staff

Joined: Mon Mar 26, 2007 5:53 pm
Posts: 1736
Location: Another Shire County
Car Model: ST185

Quote:

Any idea on plenum temps?

I'm afraid not

Just to add that I was running standard boost (0.9bar) - my boost controller was turned off because it kept spiking too much

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TrackToyFour

Post subject:

Posted: Fri Aug 28, 2009 9:13 pm

Club Staff

Joined: Wed Jul 13, 2005 12:06 am
Posts: 4743
Location: Perth, Western Australia
Car Model: ST205

Very wise too!

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Kris

Post subject:

Posted: Sat Aug 29, 2009 2:17 pm

Club Staff

Joined: Wed Jul 13, 2005 5:10 pm
Posts: 1953
Location: Sunny Fareham, UK
Car Model: ST205

What water radiator and stat are you running Mud?

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95 ST205 - slept for 10 years, now waking up...
Avensis
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_______________________________________
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Sunny

Post subject:

Posted: Sat Aug 29, 2009 3:27 pm

WRC

Joined: Tue Dec 09, 2008 6:51 pm
Posts: 1397
Location: Austria
Car Model: None

Hi,

Kris, stat means?

greetz

_________________
KEEP COOL UNDER PRESSURE

street legal?.....perhaps in tschibuti

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Sirius

Post subject:

Posted: Sat Aug 29, 2009 7:01 pm

Club Staff

Joined: Wed Jul 13, 2005 12:14 am
Posts: 3265
Location: Camberley, Surrey
Car Model: ST205

stat = Thermostat.

Cheers

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GT4DC Events Co-ordinator
1996 ST205 UK

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TrackToyFour

Post subject:

Posted: Sun Aug 30, 2009 1:59 pm

Club Staff

Joined: Wed Jul 13, 2005 12:06 am
Posts: 4743
Location: Perth, Western Australia
Car Model: ST205

Kris wrote:

What water radiator and stat are you running Mud?

I spy a Koyo

and I'm pretty sure he's running a 71deg TRD thermostat

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Muddy Water

Post subject:

Posted: Sun Aug 30, 2009 3:29 pm

Club Staff

Joined: Mon Mar 26, 2007 5:53 pm
Posts: 1736
Location: Another Shire County
Car Model: ST185

Quote:

I spy a Koyo and I'm pretty sure he's running a 71deg TRD thermostat

Correct.
Fluid I'm using is Motul INUGEL OPTIMAL
(http://www.opieoils.co.uk/p-903-motul-inugel-optimal-ready-to-use-cooling-liquid-anti-corrosion-and-anti-freeze.aspx)

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