Removing the thermostat

1. Beau81 L-plater Joined: Jun 2013 Plymouth Posts: 35 52 plate Saxo vtr

   #1 28th June 2013, 19:33

   Im using my car purely for fun on the track and had a friend advise 'got take thermostat out for that mate runs better'
   What do we think?
2. Cam Saxperience Post Whore Joined: Nov 2010 Kent Posts: 8439 Gen 7 Celica 190.

   #2 28th June 2013, 19:36

   His full of shit.
3. Beau81 L-plater Joined: Jun 2013 Plymouth Posts: 35 52 plate Saxo vtr

   #3 28th June 2013, 19:43

   When you say your using it for track days everyone seems to have an opinion and its difficult to no what to do, his theory seemed good but the last thing i want to do is bugger the engine when im throwing it around a track
4. Jam3s Regular Poster Joined: Feb 2011 Stafford Posts: 467 Mk1 VTR - VTS conversion

   #4 28th June 2013, 19:46

   Why would it make it run better?
   
   Would like to hear his theory.
   
   (Hint: It's bullshit)
5. Beau81 L-plater Joined: Jun 2013 Plymouth Posts: 35 52 plate Saxo vtr

   #5 28th June 2013, 19:53

   He said that by removing it it would allow the cooled water to circulate all the time and when the engine is being push like on a track its less likely to over heat
6. axsaxoman Saxperience Forum Bum Joined: Jan 2003 Scotland Posts: 3380

   #6 28th June 2013, 20:35

   and too cold can be just as bad as too hot
   run a cooler thermostat --but do not remove it totally
   the engine designer has worked out the flow rates around the block +allowed for flow in the heater pipes etc ,thats why you will see h/gaskets have different size holes in the water passages to make the water flow equally --
   you would also need to adjust the mapping to compensate for the change inwater temps ,it could be that at low power output the water temp could drop so much that the ecu thinks it is ib warm up ,so enrichs the fuelling
   possibly causing bore wash
   if itruns too cool the pistons will not expand ,so could be too loose in bores cuasing excess wear in bores
   
   change things too far at your own peril

   1 user thanked this post: AdamH
7. user_57064 Established Member Joined: Jan 2012 south essex!! Posts: 2442 posi blue vtrs race car

   #7 28th June 2013, 21:13

   Put it this way... Running without a stat will crack the head... The water passes through the head too fast and doesnt fill the cross chanels and is too fast to remove the heat from it, it gets stonking hot and crack....
8. AdamH Saxperience Forum Bum Joined: Oct 2004 South Posts: 3638

   #8 28th June 2013, 21:28

   fit a lower temp stat instead like an 89 degree one as opposed to the standard 92 degree (iirc)
9. Beau81 L-plater Joined: Jun 2013 Plymouth Posts: 35 52 plate Saxo vtr

   #9 28th June 2013, 21:45

   i think you have answered my question its staying in, thanks
   its always good to get a different experienced opinon
10. user_34323 Saxperience Post Whore Joined: May 2009 ringwood Posts: 6305 suzuki swift 1.2 sz3

    #10 28th June 2013, 22:15

    Iirc gti6 runs a cooler thermostat
11. axsaxoman Saxperience Forum Bum Joined: Jan 2003 Scotland Posts: 3380

    #11 29th June 2013, 10:24

    you can get thermostats down to 72 or 74 c if you hunt the applicaton books for a big power boosted car .
    but if its a n/a and reasonably std then an 82c is as low as you need to g