Had fun at Snett yesterday

[shimmy]

but it was a bit warm!!!!!

i was with our race team on Sunday at snetterton (MSV Trophy) and got the strong urrge to book a trackday and luckily enough Focused had one the next day.

Popped down and met some PGTers there and here is a quick vid around midday (track temp 32deg) and the cars were suffering big time!

http://www.youtube.com/watch?v=Bgbnm4gbReM

Tango GTR and XBow, chalk one up!

[Bealo]

I see you still haven't fitted your new diff?????

[shimmy]

I see you still haven't fitted your new diff?????

WAAAAAAAAAAAAAA:blalalala:


Diff working well. Even in the high track temps had higher top speed than before, faster lap times and much faster theoretical lap times.

That's two GTRs in two visits

[Bealo]

So you have fitted your 4.10 diff???????

Strange as your only just taking 5th as you pass the 300 board.

I hit 5th a fair bit back from the 300 board

[shimmy]

So you have fitted your 4.10 diff???????

Strange as your only just taking 5th as you pass the 300 board.

I hit 5th a fair bit back from the 300 board

depends at what revs you change up!!

Quite a few laps u was short shifting as temps were so high

[Bealo]

depends at what revs you change up!!

Quite a few laps u was short shifting as temps were so high

FAGGOT :thumbs:

[shimmy]

FAGGOT :thumbs:

:gayfight:

[AlexGTT]

Impressive Shim.:thumbs:









Should have done him sooner though, he was holding you up.;)

[XKaLiBaR]

Nicely done mate :thumbs:

That first lap was pretty fast too at 1.20.55 or something :beer:

[shimmy]

Nicely done mate :thumbs:

That first lap was pretty fast too at 1.20.55 or something :beer:


yep consistently in the 1m 20s yesterday

best was 1m 19.3s

and theoretical best was much better in the 1m 18.5s



trouble is you feel much less in control and much much more likely to meet the armco at some time not to far in the future:smokin:

[shimmy]

Should have done him sooner though, he was holding you up.;)


those GTRs are a lot wider in real life :whistle:

[Curly]

Looking good shimmishoemackor:thumbs:

[Bealo]

Looking good shimmishoemackor:thumbs:


:hahaha::hahaha::hahaha::thumbs:

[DuncanR]

Looking good shimmishoemackor:thumbs:
Just dont become Shimmyarmcosmacher !;)

[XKaLiBaR]

What oil temperatures were you getting yesterday, as it was scorching hot!

[glendog74]

Nice vid mate - it's nice to see the track this time ;)

[shimmy]

What oil temperatures were you getting yesterday, as it was scorching hot!

Oil up to 125

water after 5-6 laps was getting above last mark but before red. My carcwith map, diff etc prob would suffer more with the heat than standard car

although fan was running when engine on I did notice my dan would not run when engine off -ANY IDEAS GUYS?

[shane@mbtech]

Oil up to 125

water after 5-6 laps was getting above last mark but before red. My carcwith map, diff etc prob would suffer more with the heat than standard car

although fan was running when engine on I did notice my dan would not run when engine off -ANY IDEAS GUYS?



He was tired? Who is Dan anyway;)

Did you have A/C on as the fan will run when pressures rise, more so on hot days, could have just been this.


Worrying your water temps running high, mine does not budge even in v hot track days and on your vid you did not seem to thrashing it so to speak, going fast but neice and smooth so I reckon you have a problem again shimmy:whistle:

Depending on your fuelling it can cause temps to rise. Get your map checked. Leaning out can obtain power but also raise combustion temps due to det, which if timing/vanos is played with can occur. Caused by ignition advancing in many cases.

Engines that have too much det tend to over heat because of the heat transfer from combustion chamber to cylinder head and then to the coolant. It starts to overheat. the hotter the engine the more it dets. More det more it overheats. Snowball effect.

As I say my coolant temp does not move.

[shimmy]

He was tired? Who is Dan anyway;)

Did you have A/C on as the fan will run when pressures rise, more so on hot days, could have just been this.


Worrying your water temps running high, mine does not budge even in v hot track days and on your vid you did not seem to thrashing it so to speak, going fast but neice and smooth so I reckon you have a problem again shimmy:whistle:

Depending on your fuelling it can cause temps to rise. Get your map checked. Leaning out can obtain power but also raise combustion temps due to det, which if timing/vanos is played with can occur. Caused by ignition advancing in many cases.

Engines that have too much det tend to over heat because of the heat transfer from combustion chamber to cylinder head and then to the coolant. It starts to overheat. the hotter the engine the more it dets. More det more it overheats. Snowball effect.

As I say my coolant temp does not move.

turning off ac certainly helped as keep forgetting i had it on

mine always ran 3/4 on oil and water on track but wil get it checked

[shane@mbtech]

turning off ac certainly helped as keep forgetting i had it on

mine always ran 3/4 on oil and water on track but wil get it checked


My oil gets up to 125* but my coolant stays at approx 12 o'clock and does not budge all day, even out for 20 min stints.

I know all cars are different very slightly but you would think they would be the same and run the same temps. I cannot see how the lack of A/C on my car would make it run cooler. (thinking out loud)

I do think something is amiss with yours as the rising coolant temp is not good shimmy and could cause you another headgasket to go or worse.

[shimmy]

. I cannot see how the lack of A/C on my car would make it run cooler. (thinking out loud)

.

the a/c rad when working has got to be chucking out heat right in front of the main water rad so gonna rob some cooling capacity - but would only matter on the limits of the water cooling of ever reached

[3wheels3]

Water temp straight up at 12 o'clock all day here.

[daniel]

Your pusher fan might not be working.

[shimmy]

Your pusher fan might not be working.

Is that the electrical one on the front of the rad?

[shane@mbtech]

Your pusher fan might not be working.


Mine only has 1 fan, the viscous fan and this only works below 5mph,

So its 100% not your fan shimmy.

[shimmy]

Mine only has 1 fan, the viscous fan and this only works below 5mph,

So its 100% not your fan shimmy.

I know its not the fan when moving but as a seperate issue shouldn't a fan be runniing when the engine is turned off and it's hot?

[_Nathan_]

Isn't a viscous fan powered by the engine?

[shane@mbtech]

Isn't a viscous fan powered by the engine?


Yeh it is Nathan, but once above 5mph the air blowing through the rad is greater than the air that the viscous fan can pull through it. :thumbs:

[shane@mbtech]

I know its not the fan when moving but as a seperate issue shouldn't a fan be runniing when the engine is turned off and it's hot?

It depends on the temp the ecu is seeing and it then decides if it needs to run after switch off.

[shane@mbtech]

If you stayed out for 10 laps would it reach the red?

Did they deck the block when they replaced your head gasket?

Or it could just be a simple sender issue. Best to get it checked out though to avoid meltdown

[daniel]

Mine only has 1 fan, the viscous fan and this only works below 5mph,

So its 100% not your fan shimmy.

If you don't have AC you don't have the fan that I am talking about. Is it this one
http://www.realoem.com/bmw/diagrams/q/t/121.png
This fan will always be on once the water hits something like 90, or you have AC on. So to check if you fan is working or not just run your car, turn AC on and check if the fan is spinning. If it isn't that is the reason for high water temps.

[shane@mbtech]

If you don't have AC you don't have the fan that I am talking about. Is it this one
http://www.realoem.com/bmw/diagrams/q/t/121.png
This fan will always be on once the water hits something like 90, or you have AC on. So to check if you fan is working or not just run your car, turn AC on and check if the fan is spinning. If it isn't that is the reason for high water temps.


I know which fan that is and yes I know mine does not have it. Mine does not over heat, I dont have this fan, get where I am going?. And this fan will not create more airflow than the air flow created through speed driving along.

If it overheats stationary your fan could be culprit, but once moving the fan is taken out the equation. Esp at the speeds he reaches on track.

So in Shimmys case the fan is out the equation.

[daniel]

I see your point, but if you car didn't have AC it also wouldn't allow have the massive AC rad and fan blocking the airflow. Your point is very valid about the airflow at speed etc, but would it not be that the heat is rising on corners and in dirty air situations as this fan is just sitting stationary disrupting the flow and there is also less direct cooling in corners due to the angle?

Just an idea for shimmy to check out really.

[shane@mbtech]

I see your point, but if you car didn't have AC it also wouldn't allow have the massive AC rad and fan blocking the airflow. Your point is very valid about the airflow at speed etc, but would it not be that the heat is rising on corners and in dirty air situations as this fan is just sitting stationary disrupting the flow and there is also less direct cooling in corners due to the angle?

Just an idea for shimmy to check out really.

Rational thought but it will not effect the cooling. Very poor design on all cars by all manufacturers if this were the case.

Others with A/C dont suffer the same temp rise. Some may but most sit at 12oclock like mine, but if temp is rising as Shimmy says then there is a problem and the fan is irrelevant to his problem.



If any cars coolant temp rises high under harsh loads then I think there is an inherent problem.


We at our garage recently experienced a similar thing, albeit on a different car. Normal driving was fine, but after 6 laps on track the temp would rise and then it would chuck water into the expansion tank (seperate tank (evo 9)) Let it cool and normal driving all was fine again, after various tests and replacement of different parts the cylinder head seems to be the root cause. It was crack tested/pressure tested and all tested fine. A bizarre one.

[daniel]

Rational is good. Be interesting to see the outcome as his headgasket has already gone once?

Sounds like the easiest solution for shimmy is to turn his AC off while tracking!

[shane@mbtech]

Rational is good. Be interesting to see the outcome as his headgasket has already gone once?

Sounds like the easiest solution for shimmy is to turn his AC off while tracking!

Dont think it will make a difference though. He can but try.

[alexk]

My car never overheats.
Even in Italy+Germany with constant high speeds and high env temp, it will never pass the middle.

It's not normal to have water temp above the middle whatsoever.
The AC radiator shouldn't affect the cooling performance of the normal radiator.

Have you ever changed your radiator shimmy ?

[Bounce]

Could it be as simple as a fooked thermostat:smt115

[Bealo]

Sorry to hear your having problems Shim and i hope it's an easy fix.

Mine temp stays at 12 o clock no matter how long i stay on track for. I have seen oil temp 125 a couple of times.

[_Nathan_]

Sorry to hear your having problems Shim and i hope it's an easy fix.

Mine temp stays at 12 o clock no matter how long i stay on track for. I have seen oil temp 125 a couple of times.

125? Poof.

[glendog74]

I'm the same as above ^^^

Water temps never move from the 12'o'clock position; Oil creeps up to around 125 degrees when ambient temperatures are higher.

Never had any temp problems (yet...). :thumbs:

[XKaLiBaR]

Rational is good. Be interesting to see the outcome as his headgasket has already gone once?

Sounds like the easiest solution for shimmy is to turn his AC off while tracking!

I always believed that the AC turns off in full throttle.

[digi]

very impressive!! :thumbs::drool: