Sump Baffles

[Usual Suspect]

hey i'm planning on doin some track days soon at QR, and my mechanic said that i should consider puting a baffle in.

he said its borderline requirement for street tires/brakes, but better safe then sorry

i haven't come across this before, and considering its a fairly big job puting one in i'd like to hear some opinions.

[BezerkR32]

probably a good idea. trust you mechanic as this is what he does for a living. he, will end up getting a build out of it if you dont do it so either way he is getting work. rather spend the $1000 fitting the sump than a couple of grand re-building engine and still having to buy sump. not hard to replace sump in the car.

hey i'm planning on doin some track days soon at QR, and my mechanic said that i should consider puting a baffle in.

he said its borderline requirement for street tires/brakes, but better safe then sorry

i haven't come across this before, and considering its a fairly big job puting one in i'd like to hear some opinions.

[Usual Suspect]

very true^^

with the gtr the engine has to come out to do the sump, probably worth doin a N1 oil+water pump at the same time yeah?

or the alternative is to get a dedicated track car and work that, to save the wear and tear on my streeter

[djr81]

This has been dealt with at length a number of times. Maybe try a search.

But in the meantime some things you may like to think about.

1. You need to remove the motor to fit sump baffles.

2. If you upgrade the oil pump you may as well fit an oil restrictor to the head.

3. To fit an oil restrictor you need to remove the head.

4. If you are doing that you may aswell rebuild the thing......

But he last. most important point:

If you overfill the sump with oil you will not suffer from oil surge & the motor will be fine.

[Usual Suspect]

^^^^^i'm not that serious....... yet^^^^^

i've heard over overfilling (its one litre above the MAX level right?) i think overfilling will be the solution for now

[giant]

yep...trent

i agree with djr81 once the engine is out all sorts of things to consider.

if you keep a good close eye on oil levels(overfull) , then you should not have a problem, except maybe some breathing depending on mods.

keep a good eye on engine oil temp and coolant temp though!!

[Angus Smart]

I just went with an overfill at my track day, it was fine except for the oil coming out the pod filters.. perhaps a little too much oil and no catch can!

some things to consider

[Beer Baron]

my advice. spend the money on a top quality oil cooler kit. use good oil (motul chrono is hard to toss) and maybe overfill a little (personally I think 1l is too much, but it's up to you). also get a decent oil pressure guage with warning and recording feature (this way you can start it recording, do 2 laps, come in and play it back and watch to see if and when oil pressure drops it shoul be above about 4 bar for 90% of the lap).

my logic is those things will be needed with or without a built motor so doing them no does not cost you anything. I figure if you are running under 300awkw you 'should' be ok.

the other guys are right too, given the big labour cost in removing and re-fitting an engine it makes sense to do it along with lots of other gear which really blows out the cost.

edit: your mechanic is spot on though, sump baffles are a very good idea in any track driven GTR but the cost is just a little bit prohibitive.

[LotusGTR]

I've just gone through the same condundrum. I run 300RWKW and have just done a track day at Phillip Island. I spoke at length with my mechanic who said the sump baffle is a big job and not necessary for what I'm doing (sprint work / track days / fairly std brakes and R specs). I'd still like one though, but perhaps next time the engine is out (not soon I hope)

They changed my oil and overfilled my sump by 500ml. I run an oil cooler and have a large after market alu radiator. My main bearnings are machined for extra oil flow around them too.

It pulled like a train all day and the temp gauge never moved - and I never lost oil pressure. The car came home happy.

p.s. I have my beautiful new engine as the last one went pop at a track day, so there is danger without adequate precautions. The track is a stressful place.

Edited September 2, 2008 by LotusGTR

[Usual Suspect]

thanks everyone for your input so far

i agree with you guys in that fact that if te engine was to come out, it would recieve more than a sump, which =BIG$

what sort of oil pressure guage's have recording features on them, beer baron?

[Ant97GTR]

what sort of oil pressure guage's have recording features on them, beer baron?

The Defi link setup has a record feature.

[Beer Baron]

thanks everyone for your input so far

i agree with you guys in that fact that if te engine was to come out, it would recieve more than a sump, which =BIG$

what sort of oil pressure guage's have recording features on them, beer baron?

I use Defi BF oil pressure gauge. very good. since I have the defi BF oil pres, oil temp, boost and fuel pres. they are very useful. You can adjust the warning level for each gauge, and there is a buzzer and light for each warning. and it can record the movement of all gauges. after 2 laps I pull in and hit play. you can tell when you are on the brakes or cornering as the car is off boost, pay close attention to oil pressure in these moments to ensure it didn't drop too much. if all is well go out and enjoy. I also run a big trust oil cooler and the filter mount it comes with has lots of handy points to install the defi sensors. they are a snack to install DIY too if you like.

[Usual Suspect]

i'm not really a "guage" person, they look good tho

will the standard oil pressure guage respond quick enough to detect no oil circulation, although its a little hard to see when at full tilt + no warning buzzer

[BezerkR32]

Unfortunately the factory nissan guages are poor at the best of times. you can purchase an oil pressure warning light and sender that will come on at 30psi. if this comes on when your up it you have a bit of time to get out of it and reduce damage. by the time your factory guage reads and the 0psi light comes on its too late.

i'm not really a "guage" person, they look good tho

will the standard oil pressure guage respond quick enough to detect no oil circulation, although its a little hard to see when at full tilt + no warning buzzer

[Beer Baron]

i'm not really a "guage" person, they look good tho

will the standard oil pressure guage respond quick enough to detect no oil circulation, although its a little hard to see when at full tilt + no warning buzzer

the factory gauge is rubbish. it's an idiot gauge. it's very slow to react (so as not to alarm the average joe) and not very accurate either. if you install a proper gauge you will be shocked at how rapidly oil pressure varies with revs (as it should since the pump speed is directly related to engine RPM). it moves about the same speed as your tacho! if you don't want gauges the warning light is an option, or some other kind of data logging, but the simplest solution I found was just fit a proper oil pressure guage.

[Usual Suspect]

i like the look of the apexi EL2 guages, they are run from a controller like the defi's, and have record, replay, warning system.

i just think it'll look a bit "VN bogan" having guages everywhere.

please post some pics of your set up, i'd love to be proved wrong

EDIT: whats up with all the harness and sensor options? both apexi and defi have a massive list of options, i would assume they're for the digital display unit?? OR do i have to buy the guage AND the harness?

[fatz]

if you have a big f-off oil coller over fill 500ml

if you dont ive run up to 2 litres more (wise man once said the notch in the dip stick.. that stops all surge i find defi proven)

never spun a bearing

but im not like the rest of these clowns on here.... i generally dont rev the old girl abouve 7500 at the track

i would add more if your reving harder and dont have restrictors

take 500 mls of the above instructions if your car is a gts and rwd

[fatz]

ohhh as for quality oil in a 15 year old rb26

lol

castrol magnateck....... thick and creamy for those old engines that need some extra seal... ( specilly if its blowing the dipstick out... fancy oil will just end in death...... thicker oil= 50,000 km more track thrashing before a rebuild)

fancy oil for your farken new built motor beer bitch!

[giant]

FATZ is correct

and i have seen him thrashing hell out of his machine

[Beer Baron]

FATZ is correct

and i have seen him thrashing hell out of his machine

yeah he thrashes the hell out of it all right. right hand left hand, he's an animal. don't know if I'd call it a machine though, more like a little pistola....

usual suspect: for the defi's you don't need anything except the guage, and 1 controller. every guage comes with the sensor you need and the wiring you need.

this was the temp mounting. it's a bit average but was good enough for a while. I have a better set-up now, but not pics handy. the big shift light type thing is the oil pres warning light, set so it shines straight into my face! gauges are oil pres, oil temp, boost, fuel pres.