Adelaide Q: TD5 power vs TDi 300 power

**JDNSW** · 5th June 2006, 10:46 AM

Originally Posted by rick130

the only problem with vortex generators is that you need laminar flow for them to do their thing, and I don't kow how undisturbed the air is around a Deafener with all the bibs and bobs and bits sticking out all over

Good point, but they would probably help above the waistline and on the roof.

An interesting point is that the sharp corner on the Defender is probably a lot better at shedding the airflow than the rounded corners on,say, a Disco, where the vortex generators would be more worthwhile.

But the article I read was talking about using them on heavy vehicles, most of which have quite a few bits sticking out anyway.

It occurs to me that a good place to break the airflow cleanly away from the body would be near the front of the bonnet, so that most of the airflow goes above the windscreen. should both reduce drag slightly and reduce the number of insects squashed on the windscreen.

John

**disconut** · 5th June 2006, 10:52 AM

Originally Posted by rick130

the only problem with vortex generators is that you need laminar flow for them to do their thing, and I don't kow how undisturbed the air is around a Deafener with all the bibs and bobs and bits sticking out all over

I use two of my vortex generators to check on the traffic behind me!

Trev.

**JDNSW** · 5th June 2006, 10:56 AM

Originally Posted by disconut

I use two of my vortex generators to check on the traffic behind me!

Trev.

Yes, but they would be better right at the back of the vehicle - not sure how you would see them there......

Actually I expect that the vortex from the mirrors would have moved away from the body by the back of the vehicle.

**rick130** · 5th June 2006, 10:59 AM

Originally Posted by disconut

I use two of my vortex generators to check on the traffic behind me!

Trev.

how cool is that ! a multi-function device

and we all thought Land Rover engineers were aero-dynamically clueless

**rick130** · 5th June 2006, 11:05 AM

Originally Posted by JDNSW

Yes, but they would be better right at the back of the vehicle - not sure how you would see them there......

Actually I expect that the vortex from the mirrors would have moved away from the body by the back of the vehicle.

do you reckon anyone would be crazy enough to stick a Defender in a moving ground plane wind tunnel to see what actually happened ?

(this coming from a man that wool tuffted a Nissan Patrol to check the airflow all around the front end and cabin......

)

Teddy · 5th June 2006, 12:02 PM

Take a trip to Triumph Rover Spares at Lonsdale for a new ECU. All your problems with not holding 5th will be a thing of the past.
http://www.triumphroverspares.com.au/

**CraigE** · 5th June 2006, 03:24 PM

Some good stuff in their new website.

Thread: Adelaide Q: TD5 power vs TDi 300 power

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