scottztt

might be obvious but have you reconnected the ptu properly

Ok confused about the stat temps now, just got one from nissan and it says 76.5C, Would that be the temp it starts to open or the temp it is fully open? As Markzx states above the nismo fully opens at 79 and the standard is 84. Can anyone shed some light on this please?:confused:

i have the following coolers in order front to back: Auto oil Power steering Engine oil air con rad and water rad all standard except auto cooler and the howe radiator. I have good oil pressure at cold ( 60psi) and when very hot at idle its at 25psi. Unless i'm wrong i don't think my oil is cooking otherwise i'd have a low psi when hot. Interesting what you say about stat being in upside down. Didn't think they could but will check that out when i take it apart at the w/end. I have turbo dynamics 360 degree bearing turbos, i'm told can do 22psi. As i'm only running 14.5 at the mo the oil shouldn't be getting that much hotter should it ? Even then i'm only using in quick bursts as it's still running in. I've done 1000 miles since rebuild so only just started to give it full boost.

Thanks for the input guys. I'll get back to you with the results hopefully this weekend.

The coolant level hasn't dropped at all, check it every morning. Though one thing did happen which i wasn't sure about. I took the radiator cap off ( cold engine ) and turned on the engine, just to help get any air out of the system. But after about 3 mins, the water level started rising to the point it was going to over flow out of the radiator. I then shut it off. Any ideas what this means, wasn't sure if this should happen or not.

ChrisD, water bypass was supposed to have been done on rebuild, is there away to tell by just looking? Radron, I will let you know. Hopefully will do it this weekend, though that depends on our lovely British weather. I'm also going to blow out the rubbish from the aircon radiator, alot of dead flies etc in there, so my thinking is it might be hindering cooling. Once done i'll post back here, i don't like the sound of yours either, appears to be running to hot to me, the Aux fan shouldn't come on until over 100C, ( correct me if i'm wrong ) which is way to hot.

no turbo timer, I just don't like the idea of it going up to 100c when it's normal running temp is 85c. Just had it rebuilt costing over £7K with mods. Don't want to do it again cos it's over heating. Just been reading the Aus forums and tt.net and it appears the nismo thermostat can be troublesome. It's coming out of my car for definate now. I'll see how hot it runs on another thermostate.

I don't know if it does. but i shall ask the guy who did for me, just for piece of mind. Only since reading up tonight i realised the ecu controlled the aux fan. I'm getting nissan thermostat on tuesday, so going to fit that next weekend. Along with the standard fan setup. Just to see if it brings the temps back down. The other reason i think it's running to hot, forgot to mention this , is that when i turn it off i can remove the key from ignition before engine shutsdown, which isn't right.

Aux fan works, tested that by removing ecu temp sensor connector. Running aftermarket ecu, it has JWT software.

Bit late (just joined the site) but thats mine, and still got it.

Hi all, newbie here Ok i'll list what i've got then tell the problem. Rebuilt engine new water pump nismo thermostat AMS pully kit, under driver crank,p.steeringand alternator with over drive water pump Z-Centre electric fan kit Defi blue gauges, water temp, oil press and boost 555 injectors Z1 intercoolers Z1 Howe Rad Upgraded turbos, about 22 psi. Running boost jets at 14.5 psi and JWT Air filter. Problem is it's running really hot, and once the elec fan kicks in at 85 degrees it don't turn off. It'll go as high as 215F ( gauge is in fahrenheit ) 101C. If I turn the heating on in the car full blast I can knock 15F off the gauge. The fan is sucking air and it is really hot the engine, almost burnt fingers. The wierd thing is the Aux fan has never come on even when the gauge showed 215F. Also the normal dash gauge for temp doesn't budge. sits just below half way. now with the Howe Rad when driving at 70mph i'd expect the temp to be at about 170F (76C) but it sits at 185 (85C). now this is thebit that really concerns me. If i boot it at full boost, the temp jumps 15/20F them takes a while to come down again, 10 mins or so. At first i thought the elec fan wasn't up to the job, then thought it shouldn't be needed when driving at 70mph. I'm starting to think the thermostat is dicky? anyone agree ? just thought i'd get another opinion before pulling it all apart. Or anyother ideas i'd be grateful.