Gearbox cooler plumbing

[XLRONYX]

Two questions for those of you who fitted a gearbox cooler:

1. Does pump suction connect to the gearbox drain hole?
2. Does cooler output connect to the gearbox fill hole?

Thanks in advance, and happy new year!

Jeff

[andygtt]

The box is machined to add a new hole in the very top of the box for the oil return (so it sprays on a specific gear I think). The feed to the pump comes from the existing oil drin plug.

[Hornie]

Hi Jeff yes bottom drain hole supply's the pump , then oil goes through the cooler then back into the top of the gearbox not into the fill hole .
In this photo you can see the -6 fitting the Gearbox man puts in the top of the box !!

[GTO600]

Jeff oil return is into the top of the box as Andy describes -

Supply is via the drain port -

[Blu3R]

GTO600 said:

Jeff oil return is into the top of the box as Andy describes -

Supply is via the drain port -

Hi Kev, how did you cover the bell housing vent holes, or isn't there an issue with dirt or water ingress?

[andygtt]

Like Kevin I cut holes in my bell housing to inspect / let air circulate.... Flat floor means dirt and water can't realistically get in anyhow so I've never covered mine... Only dirt in their comes from clutch wear :-)

[GTO600]

L

Blu3R said:

Hi Kev, how did you cover the bell housing vent holes, or isn't there an issue with dirt or water ingress?

Rob, the two underneath don't require anything, the two vents higher up have grilles over them just to prevent anything falling in.

[Blu3R]

Thanks guys. Mine was roasting after a trackday earlier this year so it looks like a simple addition while everything is apart now.

[StreetDragster]

What pump do you guys use for the cooler mod?

Thanks

Matt

[CaptainPeter]

I think most people run a Mocal oil pump they are about £100-400.

Well that's what is in my toolbox waiting to be fitted.

I should have a brand new oil cooler radiator for sale soon if you need one as I'm planing to go for a oil/water cooler.

[Blu3R]

CaptainPeter said:

I should have a brand new oil cooler radiator for sale soon if you need one as I'm planing to go for a oil/water cooler.

Any specific reason for that? I know Craig ditched his Laminova oil-water cooler as it didn't provide anywhere near enough cooling for his setup.

[andygtt]

Blu3R said:

CaptainPeter said:

I should have a brand new oil cooler radiator for sale soon if you need one as I'm planing to go for a oil/water cooler.

Any specific reason for that? I know Craig ditched his Laminova oil-water cooler as it didn't provide anywhere near enough cooling for his setup.

in our cars... weight, less drop in oil pressure, ease of installation, warms oil up faster keeps it in a good range (mine overcools the oil on the motorway).

Must admit Id be worried about running one as not sure i would want to add the oil cooling into the water system as its already close to limit when pushing on track.

[Blu3R]

andygtt said:

Blu3R said:

CaptainPeter said:

I should have a brand new oil cooler radiator for sale soon if you need one as I'm planing to go for a oil/water cooler.

Any specific reason for that? I know Craig ditched his Laminova oil-water cooler as it didn't provide anywhere near enough cooling for his setup.

in our cars... weight, less drop in oil pressure, ease of installation, warms oil up faster keeps it in a good range (mine overcools the oil on the motorway).

Must admit Id be worried about running one as not sure i would want to add the oil cooling into the water system as its already close to limit when pushing on track.

I think that was his main issue - on track. The oil cooling wasn't sufficient and the increase in water temps weren't acceptable either. Hopefully he'll comment if he sees this.

[CaptainPeter]

I'm planing on fitting a front mounted oil cooler for the engine, I've got all the bits I just need to run the hose's along the tunnel (that will be fun..)

And I was planing on running a gearbox cooler in the left side pod.
I've got a upgrade gearbox and as I understand it the problem is not 100% to do with just keeping the oil cool.

The pump moves the oil around more which increases the spray of the oil on the gears, it's only required for the track so we are looking at what 20-30 mins of cooling.

I've not done a track day yet so what temp's are you guys getting on track?

I've got a temperature sensor on my gearbox and it's quite interesting how long the gearbox takes to warm up.
The oil/water cooler will help with this.

[Metalman]

GTO600 said:

Jeff oil return is into the top of the box as Andy describes -

Supply is via the drain port -

Hi Kevin, I see you and Andy have cut some cooling holes in your gearbox (four I think). In your opinion is this worth doing on a road/occasional trackday car running 500bhp? Thanks to Andy I have a spare box that's in pieces at the moment so this would be an easy mod for me.

[GTO600]

Hi Jason, I don't think it's required for your use & certainly not on a road car, having said that it won't do any harm on track if you wanted.
Let me know if you want more details of where to cut them etc.

[Metalman]

Thanks Kevin, I would never have thought of doing it until I saw the pics of your box, but I know you run more power and use the car properly. If it's not needed on mine then I won't bother, I drive like a granny anyway.

[sundance002]

Blu3R said:

andygtt said:

Blu3R said:

CaptainPeter said:

I should have a brand new oil cooler radiator for sale soon if you need one as I'm planing to go for a oil/water cooler.

Any specific reason for that? I know Craig ditched his Laminova oil-water cooler as it didn't provide anywhere near enough cooling for his setup.

in our cars... weight, less drop in oil pressure, ease of installation, warms oil up faster keeps it in a good range (mine overcools the oil on the motorway).

Must admit Id be worried about running one as not sure i would want to add the oil cooling into the water system as its already close to limit when pushing on track.

I think that was his main issue - on track. The oil cooling wasn't sufficient and the increase in water temps weren't acceptable either. Hopefully he'll comment if he sees this.

n


Hi all,
Rob is correct, on my car when I was running 550bhp, we looked at all the options for cooling. After looking at them all I chose the Laminova oil/water cooler, we tried it in two diff positions, we found that it didnt help at all.
In the end I opted for a motec oil cooler at the front next to the rad, we also added vents to the rear underside.
In the uk winter, I have to add tape to my front grill to get the correct oil temps even on track, in Spain where the outside temps are high, it gives me perfect oil temps on track, 105 to 110 max even after 20 laps, water temps never go above 90
I can do 30 lap stints without any cooling probs anywhere..
PS We also tried the motec in the side pod, but for Spain didnt provide enough cooling, for the UK it may be perfect

[GTO600]

sundance002 said:

Blu3R said:

andygtt said:

Blu3R said:

CaptainPeter said:

I should have a brand new oil cooler radiator for sale soon if you need one as I'm planing to go for a oil/water cooler.

Any specific reason for that? I know Craig ditched his Laminova oil-water cooler as it didn't provide anywhere near enough cooling for his setup.

in our cars... weight, less drop in oil pressure, ease of installation, warms oil up faster keeps it in a good range (mine overcools the oil on the motorway).

Must admit Id be worried about running one as not sure i would want to add the oil cooling into the water system as its already close to limit when pushing on track.

I think that was his main issue - on track. The oil cooling wasn't sufficient and the increase in water temps weren't acceptable either. Hopefully he'll comment if he sees this.

n

Craig, I thought your issue was engine oil cooling ? A laminova works perfectly for the gearbox.


Hi all,
Rob is correct, on my car when I was running 550bhp, we looked at all the options for cooling. After looking at them all I chose the Laminova oil/water cooler, we tried it in two diff positions, we found that it didnt help at all.
In the end I opted for a motec oil cooler at the front next to the rad, we also added vents to the rear underside.
In the uk winter, I have to add tape to my front grill to get the correct oil temps even on track, in Spain where the outside temps are high, it gives me perfect oil temps on track, 105 to 110 max even after 20 laps, water temps never go above 90
I can do 30 lap stints without any cooling probs anywhere..
PS We also tried the motec in the side pod, but for Spain didnt provide enough cooling, for the UK it may be perfect

[sundance002]

GTO600 said:

sundance002 said:

Blu3R said:

andygtt said:

Blu3R said:

CaptainPeter said:

I should have a brand new oil cooler radiator for sale soon if you need one as I'm planing to go for a oil/water cooler.

Any specific reason for that? I know Craig ditched his Laminova oil-water cooler as it didn't provide anywhere near enough cooling for his setup.

in our cars... weight, less drop in oil pressure, ease of installation, warms oil up faster keeps it in a good range (mine overcools the oil on the motorway).

Must admit Id be worried about running one as not sure i would want to add the oil cooling into the water system as its already close to limit when pushing on track.

I think that was his main issue - on track. The oil cooling wasn't sufficient and the increase in water temps weren't acceptable either. Hopefully he'll comment if he sees this.

n

Craig, I thought your issue was engine oil cooling ? A laminova works perfectly for the gearbox.


Hi all,
Rob is correct, on my car when I was running 550bhp, we looked at all the options for cooling. After looking at them all I chose the Laminova oil/water cooler, we tried it in two diff positions, we found that it didnt help at all.
In the end I opted for a motec oil cooler at the front next to the rad, we also added vents to the rear underside.
In the uk winter, I have to add tape to my front grill to get the correct oil temps even on track, in Spain where the outside temps are high, it gives me perfect oil temps on track, 105 to 110 max even after 20 laps, water temps never go above 90
I can do 30 lap stints without any cooling probs anywhere..
PS We also tried the motec in the side pod, but for Spain didnt provide enough cooling, for the UK it may be perfect

cc

Hi Kev, reads a little confusing, but I tried both for gearbox and engine oil temps, When I put the Laminova in the side pod for the gearbox it was pretty usless, we then tried it by the rad, it was better but found stationary temps where high, and it seemed to not cope on track for long. Having a gearbox heat sensore, we could see all the data.
I then went for the Motec for engine and box, the data showed they where alot more effeciant, but only when mounted at rhe front, the pipes run through the tunnel which has the mod, this also helps cool it on the way to the motec and on the return.
Hope that makes sense. Giving my secrets away now, But all the little bits, add up to huge improvement.

Craig

Edited by sundance002 on Wednesday 6th April 10:43

b

Edited by sundance002 on Wednesday 6th April 10:49