How Much Knock Is Safe? What Temperature Is Your Oil And Water At With Oil Cooler?

[allthewaytotheskyline]

hey all...

been scratching my head at this one since i got my car back from tuners.....just neediing to know what is a safe amount of knock for a tuned vehicle.

what is your oil temp (with oil cooler) max on a hot day and whats safe???

what is your water temp on your pfc controller on a hot day max out at, and whats safe??

cheers in advance,

[geraus]

my water temp is at 81 with a alloy radiator

my knock is about 10-15-20

and when i was drifting at winton my knock would be about 15-20

and temp would be 81 usual on a sunny afternoon

[Brandon]

I was told knock should never go above 40 and you should be calling your tuner up if you it goes above 35.

[3LGODZILA]

was just thinking this today as i noticed my safcII reading a bit higher then it normaly does.

when i first installed it i didnt think the knock function worked coz it always stayed on 0, then after about a week i noticed it would read 1 or 2 & after a long drive it read up to 12 but today after slapping it around corners in the wet lol it was reading 16. all my readings are at idle its never read anything other than 0 under load.

does this sound fairly normal?

[Dose Pipe Sutututu]

Knock up to 50 is quite fine under full load, i.e. 3rd/4th up a Hill on a Freeway, etc..

Water temp ideally should be under boiling point, but best under 90 degrees, because at 90+ timing gets pulled back 5 degrees, more or less depending how the powerFC is set up.

Oil, you would want it under 100, 110, I've seen mine go up to close to 120 on a skidpad sitting on the limiter in 2nd for quite sometime.

With an good oil cooler, your temps should never past 100, and below 80, i.e. the oil cooler setup is also running a thermostat, there's nothing worse than 'over cooled' oil.

[W0rp3D]

try searching, this topic has been covered many times just in the last 6 months.

[Wacky Dee]

not sure about the rest but water temp with thick radiator sits at 86C cruising ... r34 thermostat opens at 82 so that's normal (bit lower for R33s as the ts opens at 76)

[JustinP]

Is that true that the PFC pulls timing if temps get over 90C?!

My R34 consistantly runs in the 90's during summer since I installed a FMIC. I pulled out my radiator yesterday in the process of replacing the timing belt, and discovered it was in very poor condition with many bent fins... Might explain things!

In any case if it pulls timing I think I need to look at getting a new radiator.

Knock up to 50 is quite fine under full load, i.e. 3rd/4th up a Hill on a Freeway, etc..

Water temp ideally should be under boiling point, but best under 90 degrees, because at 90+ timing gets pulled back 5 degrees, more or less depending how the powerFC is set up.

Oil, you would want it under 100, 110, I've seen mine go up to close to 120 on a skidpad sitting on the limiter in 2nd for quite sometime.

With an good oil cooler, your temps should never past 100, and below 80, i.e. the oil cooler setup is also running a thermostat, there's nothing worse than 'over cooled' oil.

[Guilt-Toy]

Is that true that the PFC pulls timing if temps get over 90C?!

My R34 consistantly runs in the 90's during summer since I installed a FMIC. I pulled out my radiator yesterday in the process of replacing the timing belt, and discovered it was in very poor condition with many bent fins... Might explain things!

In any case if it pulls timing I think I need to look at getting a new radiator.

there is a water temp timing trim option in the power fc yes. what it is set at I cannot tell you as it can be changed with dataglogit.

[W0rp3D]

there is a water temp timing trim option in the power fc yes. what it is set at I cannot tell you as it can be changed with dataglogit.

I think its time to change your location guilt-toy, but from the youtube videos i have seen your avatar is spot on

[JonnoHR31]

the base maps in datalogit retard 0 at 80C then 5 degrees at 100C. so at 90C you'd have 2.5 degrees of retard