Member Profile: Jakey!

[alexeiwoody]

I'm just sayin... I'm not the one with the mystery out of the blue HG issues.
But I'm interested in the causes. Ain had lots of corrosion in the turbo coolant tube... Hmmm why?

Who knows....I have been pretty slack with coolant changes And my car has been through one or two tuners who caused some frequent boost spikes Boost spike = increased cylinder pressure = possible lifting head. Do that enough times, and who knows what will happen! Another reason why a good tune needs to take at least a few hours to complete. But that's a turbo problem, sorry jake.

Here's an interesting fact about Subarus:

"On an in-line engine or v engine design, when the vehicle is turned off the fluids such as coolant and oil will drain down to below the head gasket line. On a Subaru with a horizontally opposed engine when you turn the vehicle off the fluids such as the oil and coolant will remain in contact with the head gaskets. If the fluids are not in very good condition, such as outlined above, they will eat away at the head gaskets."

http://allwheeldriveauto.com/subaru-hea ... explained/

Ignore the whole "Only left side of engine is grounded", that doesn't apply to our models. Quite a lot more grounding on ours.

And more relevantly - http://allwheeldriveauto.com/subaru-hea ... d-part-ii/

[KiDo_Tuning]

Boost spike = increased cylinder pressure = possible lifting head. Do that enough times, and who knows what will happen!

Have you not learnt anything yet... Boost is inlet manifold restriction against inlet port flow.

Also... coolant draining down below the headgasket on an inline or V engine
Bugger, my V6's coolant header tank above my heads is a waste of money!
Nissan RB engines are just wasting their coolant bleed point being above the head, they should put it below the HG!
Interesting facts!!!!!

[alexeiwoody]

Boost spike = increased cylinder pressure = possible lifting head. Do that enough times, and who knows what will happen!

Have you not learnt anything yet... Boost is inlet manifold restriction against inlet port flow.

You're probably right. Boost has nothing to do with torque. Torque has nothing to do with cylinder pressure. The pistons move on their own. Hmmmm....

But that aside, are you saying boost spikes don't create issues for the block? I didn't even mention increased chances of detonation.

And are you implying that you've never had issues with your tunes, because I didn't define 'boost' properly?


Personally I think your customers would appreciate it if you paid more attention to your tuning, instead of forum posts. I haven't yet seen a single good tuner have to defend themselves on a forum like you do, mostly because they're attentive enough not to cause issues in the first place. And if there is an issue, they're too busy fixing them to be laughing at noobs online.

Why should some, if not most, of your paying customers take it as the norm to wait a day, or two or even weeks for a reply or a revision?

Also... coolant draining down below the headgasket on an inline or V engine
Bugger, my V6's coolant header tank above my heads is a waste of money!
Interesting facts!!!!!

It's also interesting to see knowledgeable people like yourself, flaunting your superiority over other members, by taking an outdated quote out of context. I hope you feel better now.

Sorry Justin, sorry Jake....

[bigBADbenny]

Big time : 25-50k coolant change: prevention is better than any cure

[Kekotic]

Big time : 25-50k coolant change: prevention is better than any cure

What about time?

[bigBADbenny]

12-24months?

[<GB>]

timing is more an issue around peak torque which lifts heads as the cylinder pressures rise more than a few psi increase in boost.

as boost increases you still end up with more pressure in the combustion chamber it might not be the same pressure as measured somewhere else in the intake, the restriction doenst change in the intake its constant unless you have modified it or changed intake valve/cam timing or close the throttle, so a boost spike is still causing more pressure in the combustion chamber but it might not be linear

[<GB>]

12-24months?

ive never heard of anyone changing there coolant at 12 months. what does the service book say?

http://www.ve-labs.net/electrolysis-101/how-to-test

[Kekotic]

12-24months?

ive never heard of anyone changing there coolant at 12 months. what does the service book say?

http://www.ve-labs.net/electrolysis-101/how-to-test

Is 2 years too long? Only done 15,000km.

[<GB>]

12-24months?

ive never heard of anyone changing there coolant at 12 months. what does the service book say?

http://www.ve-labs.net/electrolysis-101/how-to-test

Is 2 years too long? Only done 15,000km.

I read a service book for 06 as I haven't got mine on me and it states to change coolant every 24months or 50k and then 48months or 100k, now most mechanics including myself would do it at the km not the timef (not dealership ones who want everything done by the book or want money!). the biggest issue is not having the right amounts coolant, if you're worried flush the old stuff out (it can get residue left over flush twice) and put new stuff in.

[bigBADbenny]

Great link Brandon: 24months!
http://www.sancarlosradiator.com/Voltag ... cation.htm

[alexeiwoody]

Great link Brandon: 24months!
http://www.sancarlosradiator.com/Voltag ... cation.htm

Good job looking it up, then mine is not due to miss-service.

[<GB>]

my car past 24months no coolant change!! omg cars going to corrode lol!

take those recommendations with a grain of salt... I see heaps of cars that look like they have never had a coolant change in there life and seem ok

[jakey]

well it will hopefully get changed when my block is opened up so I have nothing to worry about for 24 months after

[KelvinTaylor88]

Hey mate, just thought I'd say g'day and shout out my appreciation for your car.
I was the guy in the silver spec B shamelessly checking out your car on the Toorak Road exit of the Monash today.
Looks the goods mate, especially love the concave on your rims. What rims are they?