3S-GTE overheating

[TRAV-KE55]

Also joel make sure you are using the correct thermostate for a celica/camry, they have a bypass valve built into them.

[o_man_ra23]

Expanding on oldcorollas, you can gut a thermostat and just run the plate. a touch less restrictive than the original thermostat, but restrictive enough to do the job.
And celica RA45, thanx for the info mate.

Cheers, Owen

[TurboRA28]

Hey all, well I took a bit of advice from everyone and problem seems to be solved..

I removed the thermostat, drilled 2x 4mm holes in the body of it. - I probably got a bit carried away with the size of the hole as when crusing seems to run a bit too cold now.

I removed the bypass hose when filling with water to get any air out of there.

I used the coke bottle on radiator filled with water and ran the engine until all the bubbles were gone.

All seems good now except for it getting a bit too cold. Its kinda like its not a steady temp now, crusing sees around 70 degrees, under load up hills around 90 degrees.

So I might get another thermostat and just put a small 2mm hole or something in it.

Cheers
Joel

[takai]

Careful Joel, too much experimenting and youll send yourself broke by buying thermostats.
1x2-3mm hole shoudl be enough. I was having similar issues to you in the AE86, but then pulled out the thermo and now it runs too cold :S Have to fix that one, thanks for reminding me.

[TRAV-KE55]

Joel,
One 1/8th hole is enough, all you are trying to do is get rid of air locks. Ive never had a problem witha single 1/8th hole.
So the big question.
How does it go??

[MR 1JZ]

So the big question.
How does it go??

I concur...

skids?

[TurboRA28]

Haha still taking it easy guys. Few problems to iron out yet, a bad miss for one and exhaust knocking around on the diff.

Plus im just running it in on my 3T tune for now until I get get it on a dyno and tuned. Going to have to be after new years now.

But yeah, it seems to be running well. The TD05-16G turbo may be a bit small, but fark the thing spools so easy its awesome.

I'll be sure to let everyone know how it goes once the probs are all sorted.

Cheers
Joel

[Squid]

Careful Joel, too much experimenting and youll send yourself broke by buying thermostats.
1x2-3mm hole shoudl be enough. I was having similar issues to you in the AE86, but then pulled out the thermo and now it runs too cold :S Have to fix that one, thanks for reminding me.

Here here! I got one yesterday, paid $35 for the thermostat, and another $8 for the o-ring!!!

Joel - I would be worried about what else is going on, I put mine in yesterday and filled her up, waited for the first change then topped her up. I then drove for 100km and temp stayed dead constant. The fact that she wasn't changing means something else is going on.

What temp rating is the thermostat? is it a toyota oem, or a third party?

[Toobs]

Hold on... so you're running a 3SGTE on an ECU that was tuned for your 3TGT?
Hope your ECU has knock control!

[TurboRA28]

Hey Toobs, interesting you say that about concerns of knock..

From all the timing maps i've seen the 3TGT runs quite a bit less timing than the 3S runs. I put that down to better combustion chamber design. Maybe not the case.. But yeah I was quite confident the 3S would be happy with the same, or more timing than the 3T ever was.

For safety though, I knocked 5 degrees off every point on the map.

I really don't like the idea of running a new engine in on the dyno, so thats the main reason for sticking with the 3T map for now. I've got a wideband 02 meter on it so can confirm mixtures and make sure it doesn't lean out.

Can anyone see any dangers in this? Or out of interest does anyone have any 3S timing maps I could have a look at?

Cheers
Joel

[Roundy]

i can't see too much of a drama as long as you are sensible about it. U have the wideband, and have got fairly conservative timing by the sounds of it.

When u decide to give it a squirt i'd just build it up gradually, which i am sure u would do anyways!

[Toobs]

You've got an Autronic don't you? Autotune?
Or ask Rod if he can hook you up with a base map?

Alternatively have a look at the maps on this page.
http://www.mrcontrols.com/primers/ems.htm

[4DaDrift]

Edited post!

[Roundy]

Ah yes that is true, however, in general, pure water dissipates heat better than most coolants, specific heat index i think the term is, amount of energy to raise the temp by 1°C.

However as u state water will boil at 100 and freeze at zero, where coolant will go beyond those ranges

[TRAV-KE55]

Joel,
what version Autronic smc do you have, only some versions have the autotune chip, but asuming its not to old they can be upgraded to the autotune chip.
Pm me if you need more details.
Trav