djtimodj

My tuner/engine builder is recommending I use a custom fab'ed coolant swirl pot.

I have searched and found no info on people that have used swirl pots?

Does any one have any info on a swirl system used on the VQ?

This will be going on a built APS TT motor, Using evans coolant.

Any help would be great.

str8dum1

iTrader: (11)

its funny bc that must be a UK mod. I didnt find any US based sites that used/sold them

djtimodj

Yeah I Know because i've not seen many builds that use them on here ?? Some of the hardcore track build use them but not many FI cars? Its an easy ish mod to custom make but i just wanted some more info on if its needed/useful?

Im looking at using a boost controller with built in turbo timer which should help keep the coolant from boiling after the motor is switched off. He has had problems with coolant boiling in the turbo's after the engine has stopped running and when the motor next starts this pushed tiny air bubbles round the coolant system.

deanfootlong

iTrader: (10)

i think you're over-thinking it. its not needed. and neither is that turbo timer unless your turbos are only oil cooled.

str8dum1

iTrader: (11)

^ do you have a turbo timer?

deanfootlong

iTrader: (10)

negative. i just make sure i dont turn off my car after a hard run. past two dsm's had oil cooled only turbos and i had zero problems. so far the g with greddy 18g's is doing fine (knocks on wood).

str8dum1

iTrader: (11)

then why even put that caveat that he would need a turbo timer with oil cooled turbos, if you obviously prove its not needed?

deanfootlong

iTrader: (10)

maybe you're missing the point he was implying that he was going to use one with a water cooled turbo which is pointless. but, different strokes for different folks. where person X may understand to not turn off the car immediately after a hard run, person Y may not understand that. therefore, a turbo time will be in benefit for person Y.

djtimodj

Guys the turbo's are watercooled but I woul be looking into the turbo timer because it is a feature of the boost controller im looking at using. It also means if im in a rush and dont have time to idle the car for 5 mins when i stop the turbo timer takes care of it for me.

Any way back to the swirl pot question?

QuadCam

iTrader: (8)

why would you need a coolant swirl pot? would it be to prevent a possible water pump cavitation at high rpm?

CTS13

iTrader: (3)

what the heck is a swirl pot.

str8dum1

iTrader: (11)

please google before asking questions

ashtrojan2008

iTrader: (1)

at SGP (i know, sorry to bring it up) they put swirl tanks in the coolant system on a lot of the cars. I think mark said it was to make bleeding the system easier, since it is no doubt a PITA. But, I could be mistaken. I didn't use one on my build, just rerouted some of the lines.

deanfootlong

iTrader: (10)

fair enough.

deanfootlong

iTrader: (10)

www.internet.com

Chris@FsP

iTrader: (4)

wow, there really is an internet.com

deanfootlong

iTrader: (10)

lol. i know i clicked on it after i posted it too.

QuadCam

iTrader: (8)

found this:

What does the swirl pot do?
It is standard race car practice to use a swirl pot in the cooling system. If hot spots in the engine cause localised boiling of the water, small pockets of air will form. Air in the water will reduce the heat transference properties of the cooling system. If correctly positioned & designed, the swirl pot will spin the water around inside it, making any water pockets form in the middle of the water. Percolation will then make this air rise inside the swirl pot, and exit out of the small bleed tube in the top, back to the header tank.