For starters...

Wharfe · Mar 24, 2011

Hi folks, just got me a 300tdi Defender. Wondered what the sensible moves would be to improve performance, economy etc? From what I've picked up here I should be thinking about removing the EGR valve (parts on order) and de-gunking the manifold, de-catting it (that'll be the next job), but what else would people recommend? Any benefit in forking out for a K&N or Pipercross filter?

dave18 · Mar 24, 2011

Is it post 92, if so you cant remove the cat only change it for a sports one, Dont know if you can get them for LRs.

hughesy · Mar 24, 2011

dave18 said:
Is it post 92, if so you cant remove the cat only change it for a sports one, Dont know if you can get them for LRs.

If it was pre 92 you couldn't remove the cat either

WTF are you on about anyway?

bobbler · Mar 24, 2011

dave18 said:
Is it post 92, if so you cant remove the cat only change it for a sports one, Dont know if you can get them for LRs.

the clue is in the OPs post. Has a 300TDI (you know diesel) so removing the cat isnt a problem as diesels dont get emmissions tested at MOT time.

and just in case your still not sure Land Rover Discovery 300 Tdi de-cat/cat removal pipe on eBay (end time 05-Apr-11 11:27:18 BST) :doh:

davek0974 · Mar 25, 2011

Forget performance filters, its not a GTi,

Regular and thorough servicing will get you about as far as you can go IMHO.

neilg · Mar 25, 2011

:sarcasm:

Go-faster stripes! They worked for me in my mk1 XR2 15 years ago.

To go really fast you need one of those big exhausts that screw onto your current silencer.

:/sarcasm:

The Mad Hat Man · Mar 25, 2011

neil - this do ya?

Wharfe · Mar 25, 2011

Oh - I thought those stripes WERE go-faster...though evidently broken on mine....

neilg · Mar 25, 2011

doh! They're very temperamental...

nesponge · Mar 25, 2011

de-restrict your exhaust (straight pipe etc)

clean out your fuel sedimenter and fit a new filter

turn up the pump

Grimmer · Mar 25, 2011

What is this performance and economy of which you speak

ricc · Mar 25, 2011

every time you touch the brake pedal youre effectivly turning fuel into waste heat.... so look ahead and back off the throttle earlier so you dont use the brakes.
youve got the aerodynamics of a brick... keeping the speed down does improve economy.
harsh acceleration and high engine revs in low gears also wastes fuel ... 2000 revs is usually enough in the lower gears

HOOK · Mar 26, 2011

performance and economy, not really two words that go together.perhaps a small japanese sports car would suit you better

Wharfe · Mar 26, 2011

Small.. Japanese.... Sports... Car???

I don't think so. Performance and economy are obviously relative terms; perhaps what I should've said was "how do I squeeze a few extra mpg out of it, and at the same time go from painfully slow to just plain slow?"
Seriously tho', thanks, all, for the advice, re - both mechanical and driving technique. All duly noted. The exhaust will be getting some attention next weekend. Today I have mostly been taking off the EGR; was horrified at the black carbon crud that had been deposited in the manifold...

davek0974 · Mar 27, 2011

Wash out the intercooler and plenum and keep speed below 60

For starters...

Wharfe

New Member

dave18

Active Member

hughesy

Well-Known Member

bobbler

New Member

davek0974

Well-Known Member

neilg

New Member

The Mad Hat Man

Well-Known Member

Wharfe

New Member

neilg

New Member

nesponge

Active Member

Grimmer

THE Winner

ricc

Well-Known Member

HOOK

New Member

Wharfe

New Member

davek0974

Well-Known Member

Similar threads