Exhaust mods for Motorsport, possibly Director & Magnum

[monstar]

Good kit that leaves factory cooler in place

Ok, but the main problem is not actually cooling the oil. It’s the bulky, hardly functional HX which precludes installation of perfectly good cheap headers.
The adaptor above comes with proper bungs and plugs to leave out the coolant heating componentry.
In other words up to you whether you actually need an oil cooling circuit but being lumped with choice of stock cast log and just a couple of aftermarket headers (which require custom tune, which voids the warranty), effectively knackers the smart upgrade options discussed for the Motorsport.
Swap out bulky HX manifold for one above, use the proper HX of your choice as above but as I said, put the factory HX in a box away from the car and fit proper header pipes.

 

[426Cuda]

Ok, but the main problem is not actually cooling the oil. It’s the bulky, hardly functional HX which precludes installation of perfectly good cheap headers.
The adaptor above comes with proper bungs and plugs to leave out the coolant heating componentry.
In other words up to you whether you actually need an oil cooling circuit but being lumped with choice of stock cast log and just a couple of aftermarket headers (which require custom tune, which voids the warranty), effectively knackers the smart upgrade options discussed for the Motorsport.
Swap out bulky HX manifold for one above, use the proper HX of your choice as above but as I said, put the factory HX in a box away from the car and fit proper header pipes.

Good discussion.
All this probably plays straight into Walkinshaw's hands...
Could the fitment of the delete kit and remote oil cooler also cause warranty issues? I suspect it probably would cause as much of an issue as the fitment of after market headers.

 

[monstar]

Good discussion.
All this probably plays straight into Walkinshaw's hands...
Could the fitment of the delete kit and remote oil cooler also cause warranty issues? I suspect it probably would cause as much of an issue as the fitment of after market headers.

Nah the LS worked fine without the pokey HX, fitment of alternate HX being not acceptable would be red rag to ACCC, especially given terrible dependability issues of the pokey HX.

 

[lmoengnr]

Good discussion.
All this probably plays straight into Walkinshaw's hands...
Could the fitment of the delete kit and remote oil cooler also cause warranty issues? I suspect it probably would cause as much of an issue as the fitment of after market headers.

Possibly... I'm not interested in deleting the unit.
There are plenty of headers to suit the LSA, so availability wont be a problem.

I don't think an oil cooler is needed on a street driven LS3. I would love to be able to log the Magnum's oil temp, but I do have 67k kms of experience of oil temp data from my Maloo.
It would usually take 10-15 mins of driving to get up to a 'normal' temp of 105-108c.
Stuck in heavy traffic, crawling along, 115c.
Blasting around a skid pan, 115c.

I think the heat exchanger will get the oil up to optimum temp quicker, and maintain it at that temp no matter what you're doing with the car.

 

[monstar]

^ LSA headers are a nice material but are not extractors.

 

[426Cuda]

^ LSA headers are a nice material but are not extractors.

I wonder if any after market tri'y's will fit. I doubt it. Means long tube, which I'm not a fan of.

 

[lmoengnr]

^ LSA headers are a nice material but are not extractors.

Yeah, cast stainless, but I meant 'any' LSA header/extractor.

 

[monstar]

I wonder if any after market tri'y's will fit. I doubt it. Means long tube, which I'm not a fan of.

Yes absolutely aftermarket tri-ys fit, even full size (long tube). But of course means engine tune.
As above that’s the conundrum faced when keeping the pokey HX, OP reported HSV (no tune needed) doesn’t clear.
I will look to confirm that also.

 

[duaned]

Correct, HSV headers do not fit without the removal of the factory engine cooler.

 

[duaned]

Why don't you like long tube headers Cuda? They are certainly good for bottom end torque.