Oil temps !!??

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Discussion

fastbikes76

Original Poster:

2,450 posts

121 months

Thursday 31st July 2014
quotequote all
What the fuuuuuuu.... is the deal on the VXR8 ?? Oil temp usually sits at 110*c and tonight on a bit of 'spirited' motorway driving it nudged 130 yikes

Do these cars have an oil cooler and if not...why the hell not ?

Has anyone retro fitted a decent cooler (if they dont have one as stock) ?

My derv people carrier 7 up driven at a ton for 2 ours SOLID only managed to touch 110, and usually sits at 85-90 max confused

stevieturbo

17,229 posts

246 months

Thursday 31st July 2014
quotequote all
fastbikes76 said:
What the fuuuuuuu.... is the deal on the VXR8 ?? Oil temp usually sits at 110*c and tonight on a bit of 'spirited' motorway driving it nudged 130 yikes

Do these cars have an oil cooler and if not...why the hell not ?

Has anyone retro fitted a decent cooler (if they dont have one as stock) ?

My derv people carrier 7 up driven at a ton for 2 ours SOLID only managed to touch 110, and usually sits at 85-90 max confused
Are you sure the gauge is accurate ?

No they do not have an oil cooler.

Diesel engines typically run cooler than petrol engines and would usually have an oil cooler of some description fitted.
Both of thee factors can lead to cooler oil temps.

But your results do sound high.

fastbikes76

Original Poster:

2,450 posts

121 months

Thursday 31st July 2014
quotequote all
stevieturbo said:
Are you sure the gauge is accurate ?

No they do not have an oil cooler.

Diesel engines typically run cooler than petrol engines and would usually have an oil cooler of some description fitted.
Both of thee factors can lead to cooler oil temps.

But your results do sound high.
Not sure how reliable the stock gauge is but some brief searching has revelled this is 'normal' !

Agreed dervs generally run cooler but when on the boil for that long in constant boost I would have thought its a reasonable comparison. My other petrol TT car doesnt get near 120 either, I guess its just a big V8 thing.

I have found a Mocal adaptor sandwich plate and will have a measure up to see where I can fit a cooler nice and discreetly. I'm simply not happy with such extreme oil temps and wouldn't have any confidence on long sustained high speed driving in stock form frown

S800VXR

5,876 posts

199 months

Thursday 31st July 2014
quotequote all
MF can fit something for you or do as I am and go DIY along with an Accumulator. This is the thermostatic tap off I'm looking to use...
http://ls1tech.com/forums/generation-iii-external-...

fastbikes76

Original Poster:

2,450 posts

121 months

Thursday 31st July 2014
quotequote all
S800VXR said:
MF can fit something for you or do as I am and go DIY along with an Accumulator. This is the thermostatic tap off I'm looking to use...
http://ls1tech.com/forums/generation-iii-external-...
Cheers ! that adapter is spot on. I was going to go Mocal sandwich plate with remote Mocal thermostat and then cooler. This adapter is easier and cleaner install cool

My only concern is the application list


Applications

All 1997 and later GM LS family engines (Gen III & IV) with rear-sump oil pans including LS1/LS6, LS2, LS3, LS7, L76/L92/L93, LQ4/LQ9, LS9, LSA. Also fits all GM Gen III & IV Vortec V8 engines.
Does not fit LSX.
NOT suitable for front-sump pans such as Pontiac GTO or Holden/Vauxhall Monaro & Commodore oil pans. Please see our GTO oil cooler adapter for these applications.

so does it fit an LS2 VXR8 ??

S800VXR

5,876 posts

199 months

Thursday 31st July 2014
quotequote all
Have a good look at the area on yr engine to decide as some are cut back and some protrude past the edge of the filter housing.

S800VXR

5,876 posts

199 months

Thursday 31st July 2014
quotequote all
BTW, those guys are based in Florida and we are there in late October so I will be purchasing all parts needed then. smile

stevieturbo

17,229 posts

246 months

Thursday 31st July 2014
quotequote all
fastbikes76 said:
Not sure how reliable the stock gauge is but some brief searching has revelled this is 'normal' !

Agreed dervs generally run cooler but when on the boil for that long in constant boost I would have thought its a reasonable comparison. My other petrol TT car doesnt get near 120 either, I guess its just a big V8 thing.

I have found a Mocal adaptor sandwich plate and will have a measure up to see where I can fit a cooler nice and discreetly. I'm simply not happy with such extreme oil temps and wouldn't have any confidence on long sustained high speed driving in stock form frown
I'd be surprised if oil temps do get that high, but have never actually monitored them myself.
Must stick a sensor in for a nosey

gsd2000

11,515 posts

182 months

Thursday 31st July 2014
quotequote all
or if your not tracking the car maybe just bolt a factory camaro oil cooler on, they work well

ARAF

20,759 posts

222 months

Friday 1st August 2014
quotequote all
stevieturbo said:
fastbikes76 said:
Not sure how reliable the stock gauge is but some brief searching has revelled this is 'normal' !

Agreed dervs generally run cooler but when on the boil for that long in constant boost I would have thought its a reasonable comparison. My other petrol TT car doesnt get near 120 either, I guess its just a big V8 thing.

I have found a Mocal adaptor sandwich plate and will have a measure up to see where I can fit a cooler nice and discreetly. I'm simply not happy with such extreme oil temps and wouldn't have any confidence on long sustained high speed driving in stock form frown
I'd be surprised if oil temps do get that high, but have never actually monitored them myself.
Must stick a sensor in for a nosey
Yes, the oil temp does get hot, but the gauge also reads high. I think our VXR8 gauge was about 35 deg C out, but the Ute is only ready about 10 deg C high. I now have temp stickers on the sump and oil filter, just to see how high temps are reaching, while I work out what to do.

There's a cabin alarm when the temp reaches 150 deg C on the gauge.

stevieturbo

17,229 posts

246 months

Friday 1st August 2014
quotequote all
ARAF said:
Yes, the oil temp does get hot, but the gauge also reads high. I think our VXR8 gauge was about 35 deg C out, but the Ute is only ready about 10 deg C high. I now have temp stickers on the sump and oil filter, just to see how high temps are reaching, while I work out what to do.

There's a cabin alarm when the temp reaches 150 deg C on the gauge.
Anything over a genuine 130degC should really carry an alarm. 150 would be wayyy too late, oil would be cooked, even good oil would struggle at those temps

Was looking at various sensors people use for temperature monitoring last night, most are fairly linear up to around 110degC, after that they become very non linear, 130-150deg range, I'd say it'd be a struggle for a truly accurate reading.

Have ordered one to stick in mine anyway. No doubt there are some very expensive alternatives which maintain accuracy higher...dont think they'd be needed though

ARAF

20,759 posts

222 months

Friday 1st August 2014
quotequote all
These are the labels I have. Range C

http://temperature-indicators.co.uk/acatalog/Indus...

V8HSV600HP

126 posts

116 months

Friday 1st August 2014
quotequote all
This is an old thread on Oil temperatures on VXR8's..hope this helps..

http://www.pistonheads.com/gassing/topic.asp?h=0&a...

stevieturbo

17,229 posts

246 months

Friday 1st August 2014
quotequote all
V8HSV600HP said:
This is an old thread on Oil temperatures on VXR8's..hope this helps..

http://www.pistonheads.com/gassing/topic.asp?h=0&a...
It would seem for the most part, the problem is gauge inaccuracy then.

adevxr

234 posts

154 months

Friday 1st August 2014
quotequote all
Hi all ... I normally sit at an indicated 105/110 degrees also with normal driving in the correct gear, if I'm driving harder and mostly in 4th and 5th gears for instance then the temp will indicate approaching 130 degrees, into 6th and 5 minutes of normal driving and I'm back at 110 ish. Seems normal for the R8 and as for gauge accuracy I understand what the issue is with oil temps and cooking etc but the gauge in YOUR car will at least be consistent and give YOU a good indication of where your car is at - if you are worried invest in a better gauge but all that will do is give you a consistent, more accurate temperature for your oil and may well be non beneficial unless you are reading severely down on your in car gauge. \if yours normally says 110 and 130 spirited driving but then one day says 145 I would be worried at that point and get it seen to.

Ade

fastbikes76

Original Poster:

2,450 posts

121 months

Friday 1st August 2014
quotequote all
I have a full set of Prosport Peak/Warn stepper motor gauges one of which is oil temp, Im sure I could ghetto rig the oil temp one up to get comparable readings. That way I would know what the ACTUAL temps are...and if they are truly hitting 110+ I will most definitely be fitting an oil cooler kit.

Are there any blanking take offs I could use for the sensor (save me jacking car up and looking) ?

KMud

2,924 posts

155 months

Friday 1st August 2014
quotequote all
Do you have one above the oil filter, like on LS1?

http://forums.justcommodores.com.au/vy-holden-comm...

bigunit00

890 posts

146 months

Saturday 2nd August 2014
quotequote all
adevxr said:
Hi all ... I normally sit at an indicated 105/110 degrees also with normal driving in the correct gear, if I'm driving harder and mostly in 4th and 5th gears for instance then the temp will indicate approaching 130 degrees, into 6th and 5 minutes of normal driving and I'm back at 110 ish. Seems normal for the R8 and as for gauge accuracy I understand what the issue is with oil temps and cooking etc but the gauge in YOUR car will at least be consistent and give YOU a good indication of where your car is at - if you are worried invest in a better gauge but all that will do is give you a consistent, more accurate temperature for your oil and may well be non beneficial unless you are reading severely down on your in car gauge. \if yours normally says 110 and 130 spirited driving but then one day says 145 I would be worried at that point and get it seen to.

Ade
This sounds exactly how my r8 behaves. Literally sits on 128 degrees driving in 4th/5th...drops back after some time in 6th.

fastbikes76

Original Poster:

2,450 posts

121 months

Sunday 3rd August 2014
quotequote all
Ok so I have had a look and there is a blanking plate on the sump just above the oil filter. I have found this blanking plate with a 1/8th npt hole to suit my Oil Temp Gauge.

http://www.ebay.co.uk/itm/141358870294?_trksid=p20...

If I find the stock gauge is miles out and the actual temps are not exceeding 105 to 110 I shall forget about the cooler.

If the gauge is remotely accurate and we are in fact seeing 130+ I shall fit an adapter like so which has a 82*c thermostat built in. That way the oil will reach operating temp before oil cooler opens.
http://www.ebay.co.uk/itm/141318349322?_trksid=p20...

As for the actual cooler and lines, Ive not looked into that side of things too much but a simple Mocal core and some Pirtek custom made lines will see that sorted. I have roughly worked out a route away from the exhaust etc.


cool

stevieturbo

17,229 posts

246 months

Monday 4th August 2014
quotequote all
I'd love to know how the feel -8 fittings are safe ?

The main oil galleries in the block etc are circa 12.5mm diameter

Even a -10 fitting is smaller than this at around 11.5mm diameter ( hose may be larger ID, but the metal fittings restrict it further )

So for them to use -8 ports on the body must be even more restrictive.

The only way to maintain no less than 12.5mm diameter is to use -12 fittings.

Although -10 throughout is fairly close to maintaining the same diameter as main galleries