Chase Posted February 8, 2005 Share Posted February 8, 2005 OK, so after starting, how lonh should you wait until 'putting your foot down'. I realise the temp gauge is water temp, and I pretty much always wait until the needle reaches the half way point until putting my foot down. Am I being over cautious? A friend used to have a Nova GTE and would start putting his foot down when the temp needle started to go up. Opinions? Cheers Edited as I typed fott twice! instead of foot Link to comment Share on other sites More sharing options...
SimonB Posted February 8, 2005 Share Posted February 8, 2005 Well, I've got an oil temp gauge, I leave it until the oil is at least 50C, and that doesn't happen until well after the water temp has stabilised. Link to comment Share on other sites More sharing options...
Dale B Posted February 8, 2005 Share Posted February 8, 2005 You dont have to wait until temp hit mid point to "give it some" just as long as you dont floor it from cold with cold oil circulating. I generally let it warm up for about a couple of miles or so before using any power. Link to comment Share on other sites More sharing options...
RobSheffield Posted February 8, 2005 Share Posted February 8, 2005 Nova GTE didnt realise thes cars came with an accelerator pedal - thought it was set to full throttle screaming engine at the factory!! at least the ones on my estate do! Link to comment Share on other sites More sharing options...
hadyn Posted February 8, 2005 Share Posted February 8, 2005 i personally let my car warm up for about 5-10 mins before applying any serious power.... Link to comment Share on other sites More sharing options...
Scoboblio Posted February 8, 2005 Share Posted February 8, 2005 Yup, I usually let the temp needle settle on halfway before putting my foot down... no scientific basis for that, just seems right to me Link to comment Share on other sites More sharing options...
tbourner Posted February 9, 2005 Share Posted February 9, 2005 Isn't the most important thing oil pressure and not temperature? I mean most NAs are 'reasonably' happy to go full on from cold (ish), but the turbos will need a nice clean high pressure oil flow round the bearings or else they'll be dead within a few runs!! Link to comment Share on other sites More sharing options...
Chase Posted February 9, 2005 Author Share Posted February 9, 2005 Don't know tb. Maybe it should be a combination of pressure combined with the oil being within operating temp range? Link to comment Share on other sites More sharing options...
Supraman Posted February 9, 2005 Share Posted February 9, 2005 Isn't the most important thing oil pressure and not temperature? I mean most NAs are 'reasonably' happy to go full on from cold (ish), but the turbos will need a nice clean high pressure oil flow round the bearings or else they'll be dead within a few runs!! Skyline owners club go with the Oil Temp gauge before letting loose. I tend to wait until the water temp gauge has reached normal ops temp (which only takes a few minutes). Link to comment Share on other sites More sharing options...
SimonB Posted February 9, 2005 Share Posted February 9, 2005 I have both oil temp and pressure gauges. When you start from cold the oil pressure is high (around 100psi at idle). As it warms, the pressure drops as the oil becomes thinner, to around 30psi at idle. Link to comment Share on other sites More sharing options...
Dale B Posted February 9, 2005 Share Posted February 9, 2005 Isn't the most important thing oil pressure and not temperature? I mean most NAs are 'reasonably' happy to go full on from cold (ish), but the turbos will need a nice clean high pressure oil flow round the bearings or else they'll be dead within a few runs!! Oil pressure is higher when cold (its thicker), so the temp is more important (as long as you dont loose all youyr oil pressure :upside: ) Link to comment Share on other sites More sharing options...
Barry Posted February 9, 2005 Share Posted February 9, 2005 Isn't the most important thing oil pressure and not temperature? I mean most NAs are 'reasonably' happy to go full on from cold (ish), but the turbos will need a nice clean high pressure oil flow round the bearings or else they'll be dead within a few runs!! Oil pressure will be higher on a cold engine than on a hot engine, you will notice the pressure drops slightly when the engine is warm, especially at idle. Also, oil takes longer to warm up than water, so going by the water temp gauge is a no no. Your water gauge will be on half way in about half a mile of driving, the oil will be no where near upto operating temp. EDIT to say... Shoud have read the post above first! Link to comment Share on other sites More sharing options...
tbourner Posted February 9, 2005 Share Posted February 9, 2005 OK so I was wrong then (damn). I assumed wrong but my theory is right though isn't it? The turbos really need the right oil consistency and pressure (and temperature?) for them to run properly without damage? But then I suppose that all comes down to oil temperature anyway (damn). I'll quit while I'm behind!! Link to comment Share on other sites More sharing options...
Barry Posted February 9, 2005 Share Posted February 9, 2005 OK so I was wrong then (damn). I assumed wrong but my theory is right though isn't it? The turbos really need the right oil consistency and pressure (and temperature?) for them to run properly without damage? But then I suppose that all comes down to oil temperature anyway (damn). I'll quit while I'm behind!! You are right in that they need good oil pressure, but pressure drops when the oil / engine is warm, so as long as the pressure is good when the engine/oil is warm then there is no problem. I dont have an oil temp gauge, so I drive very easy for the first 5 miles of my journey from cold, no boost what so ever. It even ticks over for a minute or two while I jump out and lock the garage up too, but I never use the water temp as a guide as to when to put my foot down. Link to comment Share on other sites More sharing options...
Chase Posted February 9, 2005 Author Share Posted February 9, 2005 OK - going slightly bonkers here for a second, but if the oil was at an acceptable pressure/viscosity but cold, wouldn't that be better for the turbos as it would cool them quicker? Or do turbos have an optimal max and min temp? Is it possible to run turbos too cold? OK, so I've started babbling and going off on tangents now Link to comment Share on other sites More sharing options...
scooby_doo_do Posted February 9, 2005 Share Posted February 9, 2005 When a freind of mine bought an Audi TT and he was told to floor it from cold to get better performance..The chap said the tubo's run better when cold ?? WTF... I told him if he kept it up the engine won't last long - and it'll be back to Audi for expensive repair.. Link to comment Share on other sites More sharing options...
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