More power from GQ 2.8

[YNOT]

On the colder thermostat part - yep, true if it's running properly you shouldn't need a colder thermostat, however if you have it running properly (like mine) but have heaps in the way of the radiator (like mine), such as spotties, intercooler, air con radiator, oil cooler etc, then air won't be getting in as effectively and efficiently and as such, you may not be cooling properly and think its mechanical/cooling system related when it is simply airflow restriction - like me, most people don't remove the obstacles listed above, and simply fit a colder thermostat ...

How'd I go Tony? Did I pass the test??!! lol

A colder thermostat won't increase cooling capacity, it will just open at a lower temperature.

As Robo says in post #8 running a colder thermostat can lead to enrichment issues on some engines, and you did have an issue with this last year when your engine coolant temperature sensor failed.

Colder thermostat's have their place but they shouldn't be used to mask short comings in the cooling system. Get the basics right first and if you need more cooling capacity do it properly with a higher capacity radiator and increased airflow. Short cuts will always come back to bite you on the ar$e.

Tony

[Bigrig]

A colder thermostat won't increase cooling capacity, it will just open at a lower temperature.

As Robo says in post #8 running a colder thermostat can lead to enrichment issues on some engines, and you did have an issue with this last year when your engine coolant temperature sensor failed.

Colder thermostat's have their place but they shouldn't be used to mask short comings in the cooling system. Get the basics right first and if you need more cooling capacity do it properly with a higher capacity radiator and increased airflow. Short cuts will always come back to bite you on the ar$e.

Tony

Not quite true boss - temp sensor was Christmas 2010 ... A loooonnnng time before I had the new radiator, cooling system flushed, and cold thermo put in ... on that side, never had a problem since with the cooling system. Just with everything else!!!! lmao

[YNOT]

Not quite true boss - temp sensor was Christmas 2010 ... A loooonnnng time before I had the new radiator, cooling system flushed, and cold thermo put in ... on that side, never had a problem since with the cooling system. Just with everything else!!!! lmao

True. The point I was trying to make was you've seen what can happen with enrichment, in your case it was caused by a faulty sensor not a cooling system issue

Tony

[Bigrig]

True. The point I was trying to make was you've seen what can happen with enrichment, in your case it was caused by a faulty sensor not a cooling system issue

Tony

All good boss - it doesn't seem like over a year ago does it??? lol

[YNOT]

All good boss - it doesn't seem like over a year ago does it??? lol

No it doesn't, where does the time go?

Tony

PS, thread hijacked by 2 moderators!

[Bigrig]

PS, thread hijacked by 2 moderators!

All for the common good though!!!! lmao

[vbowste1]

Well i have bought an intercooler of e bay its a bar and grill type aluminium but i tried to be conservative and only got a small one, 450x300x70 as i didnt want to completely cover the other radiators with it.
The reason i didnt go big was the fact that a mate just bought a ford ranger and it is intercooled with a small size one so i thought it must be ok as the new cars are only using fairly small ones so they must work ok.
I will fit that as well as a 3inch exhaust, reconditioned injectors get the radiator flushed out by pro's and see how she goes. Oh yeh and i was going to fit a boost guage and boost adjust valve and try and turn it up a bit.
Thanks for the help ill let you all know how it turns out.

[Bigrig]

Well i have bought an intercooler of e bay its a bar and grill type aluminium but i tried to be conservative and only got a small one, 450x300x70 as i didnt want to completely cover the other radiators with it.
The reason i didnt go big was the fact that a mate just bought a ford ranger and it is intercooled with a small size one so i thought it must be ok as the new cars are only using fairly small ones so they must work ok.
I will fit that as well as a 3inch exhaust, reconditioned injectors get the radiator flushed out by pro's and see how she goes. Oh yeh and i was going to fit a boost guage and boost adjust valve and try and turn it up a bit.
Thanks for the help ill let you all know how it turns out.

Good stuff and good luck with it mate.

[Robo]

Yeah mate if the intercooler is to big I'm told you can have pressure drop any way,and the manufacturer should be able to tell you it's flow rate.
I have a calc somewhere to help work out an engines N-A air flow volume rate, but recon if a turbo is thrown into the mix you would need to take boost into affect, my point is, there is probably a calculation for working this out, I just don't have it to pass on. someone out there may?.
Cheers

[Bigrig]

I have a calc somewhere to help work out an engines N-A air flow volume rate, but recon if a turbo is thrown into the mix you would need to take boost into affect, my point is, there is probably a calculation for working this out, I just don't have it to pass on. someone out there may?.
Cheers

It's called a dyno!!!! lmao

Would be bloody good thing though - after fitting my turbo, all the thoughts would be that the standard air box wouldn't be up to the task and would starve it of O2 somewhat - now on the analyser, I've got both unburnt fuel AND oxygen coming out the pipe whilst we try to get it humming (still at the mechanics) ... obviously need to alter a few things, but at least I'm a little more certain that's it's getting enough now. Would be nice to be able to calculate it at the outset as some would just go out and spend their hard earned on a new air intake setup just because of uncertainty ....