300tdi exhaust upgrade and power upgrades

[Tdi Nico]

I am rebuilding a 300tdi from the 94Discovery I bought and I have noticed that the exhaust seems of poor design.
I've heard that they suffer a lot of turbo lag down low is this true?

I've also heard their is a guy getting around Adelaide that has developed a system that removes almost all lag.
Has anyone used this system? Does anyone know who he is?

Any tip on how to upgrade the power out of this little oil burner cheap and easy would be really help full
I'm current ly in the beginning stages of a full rebuild so nows the time to do the upgrades

Thanx for the help guys in advance!!!!

[rangieman]

I am rebuilding a 300tdi from the 94Discovery I bought and I have noticed that the exhaust seems of poor design.
I've heard that they suffer a lot of turbo lag down low is this true?

I've also heard their is a guy getting around Adelaide that has developed a system that removes almost all lag.
Has anyone used this system? Does anyone know who he is?

Any tip on how to upgrade the power out of this little oil burner cheap and easy would be really help full
I'm current ly in the beginning stages of a full rebuild so nows the time to do the upgrades

Thanx for the help guys in advance!!!!
I have removed all mufflers and just use a 12" hotdog in place of the main muffler , Helps reduce the turbo lag slightly ;)

[Young Angus]

I'd say Bee Utey would have a bit of advice I know he does a lot of good things to Discos and he lives in the Adelaide area...he's done a couple of things to the Disco I have now and it drives really well.

[weeds]

a tweeked of your fuel pump will get you rolling betting off boost and gives you a bit more power on boost

i removed both the muffler and resinator on my system, it doesn't sound noisey to me but apparantly its quite noisey.........the only benifit i noticed was the turbo spools a little quicker re: power, welll i reckon you need to put it on a dyno after each change to find where and how much power you have gained

[weeds]

oh and its reccommended that you install an exhaust gas temp guage

[Tdi Nico]

Has anyone actually just gone out and put a bigger exhaust on one with no mufflers and see what happens

[weeds]

Has anyone actually just gone out and put a bigger exhaust on one with no mufflers and see what happens

I went with a new 2.5 normal bends no mufflers

Quite a few guys on here have put 3in straight through system

My opinion is it hard to gauge how much extra performance with just exhaust changes

[Tdi Nico]

How did you find the 2.5 were you happy? I'm just looking around and trying to gauge the best way to head in a better running-more power engine any suggestion would be really help full

[weeds]

How did you find the 2.5 were you happy? I'm just looking around and trying to gauge the best way to head in a better running-more power engine any suggestion would be really help full

i'm happy with my 2.5 system, if i did it again i would have kept the resinator

have the pump tweeked, there are instruction floating around here somewhere

install an EGT guage

i have had a noteable increase in drivability throught the combination of changes

re: 3in systems, i think its an overkill as the 300tdi only a tiny engine compare to the 4L engines running around with 3in mandrel systems fitted.....stick with a 2.5 system i reckon

[Tdi Nico]

That's exactly what I thought! I was thinking 2.5 inch and try to improve that angle under the engine mount. I'll have a look for the pump tweek!

EGT is a must. I will also run oil temp, water temp, boost pressure and a volt meter on each battery

[pm80]

I had the middle muffler cut out and replaced with a straight bit of pipe. $45. The sound is almost unchanged.

I was told that the middle one is the restrictive one and removing it was almost as good as getting a new system. I did have it dyno'd before and after but we were playing with the fuel pump as well. We thought we gained a little bit by being able to up the fuel a bit more before it got smokey.

I think it was $45 bucks well spent... but nowhere as good as the money I spent with a four wheel dyno and clever guy at Diesel Care. At 1800 rpm he almost doubled the power output. It was double a very small number (16Kw! to almost 30Kw) but heaps better to drive. Note: we did not change the peak output by much at all, just boosted the bottom to mid range. Much better round town.

[scanman]

Who does diesel tuning in Adelaide? Thinking of doing the exhaust, water-air cooler, couple of psi of boost and maybe water injection at once then getting the pump adjusted to suit.

[Tdi Nico]

Thanx PM80 good info to help back up my idea that 2.5 is enough I think

Not sure of anyone in Adelaide yet I want someone that has tuned land rovers too!! I was going to ring rover wreak and see if they had any ideas! If you find one before I do post it here and I'll do the same

[scanman]

yeah cool. Did you buy the disco on gumtree with the defect? After doing a quick mechanical resto on my disco im now looking for another with BHG to fix and maybe sell - so easy to work on.

Have fun,
Jeff

[Tdi Nico]

Nah mates old man bought it like it to turn into a ute. They are land rover nuts! He changed his mind, I wanted an older 4x4 for camping instead what I have now so I bought it off of him

[Gladus Moo]

Who does diesel tuning in Adelaide? Thinking of doing the exhaust, water-air cooler, couple of psi of boost and maybe water injection at once then getting the pump adjusted to suit.

Did u ever find anyone in Adelaide that could do this?

[Pindone]

i'm happy with my 2.5 system, if i did it again i would have kept the resinator

have the pump tweeked, there are instruction floating around here somewhere

install an EGT guage

i have had a noteable increase in drivability throught the combination of changes

re: 3in systems, i think its an overkill as the 300tdi only a tiny engine compare to the 4L engines running around with 3in mandrel systems fitted.....stick with a 2.5 system i reckon

Apart from another gauge, why monitor the exhaust gas temp when removing a muffler?

[vnx205]

i'm happy with my 2.5 system, if i did it again i would have kept the resinator

have the pump tweeked, there are instruction floating around here somewhere

install an EGT guage
... .... ....



Apart from another gauge, why monitor the exhaust gas temp when removing a muffler?

Probably because of the pump tweak, not the muffler.

[Vanderz]

forgive my ignorance but is increasing boost as simple as fitting a turbo smart manual boost controller and gauge?

[Blknight.aus]

its easier than that, just adjust the wastegate actuator..

of course then you need the fuel to be available to make the boost.