Hotting up turbo diesels

[Maddog]

Assuming I own a 2nd gen 2L Yota turbo diesel.....

Its an import motor, how much boost does it run?
How much can it be wound up with minor mods?
How much hassel it is to run a boost switch with say 6 psi and 12 psi....meaning it would be tuned for one of those pressures, but without a computer to control fuel, how does one up the ante on the pump?

Anymore tips?

I know a fair bit about petrol turbo's (used to work at Nizpro) but diesels...nup.

[dumbdunce]

6 - 8psi standard boost, 10 - 11 without too much drama but the stock turbocharger is not much good for anything higher, even with wastegate actualtor disconnected you'll only see about 14psi peak boost. fuelling is enriched by the boost compensator on the fuel pump up to a point, but leaning out is not a problem for diesels so you just tune it for max allowable EGT on your low boost setting, then when you crank in the extra boost with your switch you'll get some more power and EGT's will actually go down a bit.

intercooling is good value on these motors, they run HOT and are very hard on their oil. if you want to spend big they also go a whole heap better with a better turbocharger but that can be a bit hit and miss unless you can find someone who's done it or knows what they're doing to get it right.

cheers

Brian

[Maddog]

Thanks for that....

I was thinking about going a water to air intercooler from an old subi.

Sure I could go an air to air but....I need good air flow which is hard with a bullbar and I dont want it to get exposed. Mud and shit wold get in it and it would be useless at low speed.

Could you please explain the EGT to me, I dont really understand what you mean.

Thanks!

[dumbdunce]

EGT = Exhaust Gas Temperature, it's the diesel analogue of EGO in a petrol, its the way you tell if a diesel is running a 'correct' air/fuel ratio. too much fuel = too hot = melted bits like piston crowns or valve seats or craked head :)

have a search on the net, there's plenty of detailed sites out there. I can go into more detail if you want.

cheers

Brian

[mud4b]

please do....i plan to boost the crap out of mine when i get it in the sierra.

[dumbdunce]

mud4b what motor are you talking about boosting up?

more soon, a bit flat out right now.

[mud4b]

vw 1.9 td.out of a import sierra.

[Punchy]

Another person that may be able to help you with your plight is a man named John whittaker of brisbane turbo and tuning center
17 nile street woolongabba brisbane
3393 1588

To refer you to his talentsi refer you to back issue of 4x4 monthly
number 49
yearbook 2003
page 218

I refer to An article about "Surf Club".

First of the 3l surfs..upgraded from 85 - 130 hp..

You can guess the rest

I knew whitty years ago when i used to work at woolongabba myself..nice guy...very busy all the time and knows his shit.

call him and see if he can offer you some advise

[bj on roids]

Another person that may be able to help you with your plight is a man named John whittaker of brisbane turbo and tuning center
17 nile street woolongabba brisbane
3393 1588

To refer you to his talentsi refer you to back issue of 4x4 monthly
number 49
yearbook 2003
page 218

I refer to An article about "Surf Club".

First of the 3l surfs..upgraded from 85 - 130 hp..

You can guess the rest

I knew whitty years ago when i used to work at woolongabba myself..nice guy...very busy all the time and knows his shit.

call him and see if he can offer you some advise

he is the guy i had tune all my toyota diesels!

[mud4b]

well that says it all!!!!!!

[bogged]

Calling AWILL4x4.....


The bloke makes intercoolers.. and knows his shit VERY well.


also have a read at www.are.com.au

[Punchy]

I'm gonna get me an intercooler from him soon enough