6 replies to this topic

['Buchos']

I bought Duncans TMS Charge Cooler kit when he changed it out for the Pro-Alloy kit. (no debate over which is best plz)

I fitted it over the weekend, which was much fun I wasn't expecting the hoses to be like something that should be hanging off the back of a fire engine and there's quite a bit of my skin left in the car after getting them into the sills, but its all done now..

The only thing I changed was adding a couple of spal fans (from an Aprilia) which are very effective and the charge cooler is very cold to the touch at all times when they are on, there is also a beneficial cooling effect on the main radiator



There is not too much info on here on fitting the TMS kit so I have a couple of questions.

Is it necessary or beneficial to move the air temp sensor from the top of the intercooler to after the CC unit?

The motor on the water pump runs quite hot, is this normal?



I am running TMS St2 with a VXR turbo, so the CC should at least maintain the power I would expect from that. Do I need any additional mods (apart from a remap) to take it up a stage?

[SteveA]

It makes sense to move it after the CC to get an accurate reading on air temp entering the TB, after all the engine will back off the power if it believes the charge isn't cool enough.

Edited by SteveA, 15 July 2008 - 05:53 AM.

[Guy182]

yes move it after the CC. you want it to see the actual inlet air temp not the temp before it is cooled else the fuelling will be all over the place. courtenays did this to a few tms ones. oh and where the tank bolts to the rear clam.. try and re inforce it somehow. seen them cracking that lip on the clam from the weight. iirc theres just two top mounts and it puts alot of stress on them? ideally you could do with supporting it at the bottom , drilling through the boot. if you cant get a bracket welded to the tank try knocking one up with a round clamp of some sort.

Edited by Guy182, 15 July 2008 - 09:03 AM.

[TonyKL]

As said moving the temp sensor to after the charge cooler is a MUST! If you don't do this the ECU wont know that you have a charge cooler with cooler temps.

[siztenboots]

As said moving the temp sensor to after the charge cooler is a MUST!
If you don't do this the ECU wont know that you have a charge cooler with cooler temps.

I found sitting in pitlane for 10minutes on a scorching hot day, there was a fair bit of heat soak collecting in the CC system, plus a lot of heat buildup before the CC from the intake. After doing a warm up ( or cool-down lap for the CC ), the air through the CC rad dropped the charge temperatures to the throttle body to what you would expect ~ 25 'C

So if you did not move the MAP sensor , the engine might think the charge is cooler than it is due to heat soak.

Next track mod would be to wire a fan override on the CC rad to something like the fog light switch

[edit] As john says the pump will be fine getting warm provided there is liquid flowing too as this would act as a very good heat sink. If the pump does not prime or cavitates, then you would hear the noise difference and the pump would spin much quicker, how long it would last like that I do not know. If you measured the current consumed that would give you a good idea of heat input to the system by the pump.

Edited by siztenboots, 15 July 2008 - 10:23 AM.

[Thorney]

Yes move the sensor and yes the pump is fine getting warm.

['Buchos']

Yes move the sensor and yes the pump is fine getting warm.

Thanks guys for the quick response. Taking your advice:

I've a spare temp sensor that I'll mount just after the CC.

The small fans on the CC rad are switched from the dash (preventing heat soak was the thinking behind fitting them) and I'll fabricate something better to support the header tank and pump.