Kkk

[Rallyvan 0]

Iv got a 306 td engine in my 205, it's running the KKK turbo and the bosch fuel pump. If any1 has any experience with these engines what would they recommend that max psi? bearing in mined that for now it still has the TMIC.

Cheers.

[welshpug 1,661]

have you got a decent duct to the Intercooler?

 

the 306 and 405 have a duct integrated to the bonnet sound deadening to feed air to it, without that I wouldn't imagine it to be particularly effective and the boost you can run through it reliably will be limited.

 

in a 306/405 you can run around 18 fine

[Rallyvan 0]

Cheers for the reply welshpug, yep got a cold air feed, but am planning to front mount the intercooler soon so I might be tempted to just wait whilst I do that before I start turning the boost up, was just wondering it's potential power?

[welshpug 1,661]

I know of a few pushing 150+

[Rallyvan 0]

I know of a few pushing 150+

 

Sounds good, should go ok in my 205 van then

[jimistdt 1]

I have been looking into this alot lately, by my reckoning, I think that WP's probably right with 18 PSI with an intercooler. When you go much higher than that the turbo becomes inefficient and you'll have an increase in temps on the compressor, which in turn means the intercooler has to work harder.

 

I'm not saying you can't go higher and I know some that are, but I think it's a good starting point.

[foreigner 0]

I was looking at this as well and had a thought why not to put small intercooler before turbo ???

 

Would it be any help??

[jimistdt 1]

The air before the turbo is at the ambient temp,so in order to do something like that you would have to chill the air rather than cool it on the intake side. I'm not sure how you could do that,unless you have a plan?

 

There is always water/alcohol/nitrous that additional injectors can be fitted that would further cool inlet temps, although it would be post turbo.

 

The best results are from the best installations, those that avoid sharp turns on the ducting side, good joins, big efficient coolers and ensure that you are saying within the safe limits of your engine, depending whether you want the engine and turbo to last or not.

[Sloppy 0]

you can run much higer boost, just depends on your driving style, the cooler will only get hot if you hammer the car literally in every gear if you just driving briskly then 22 psi would prob be ok, just dont let the water temp go over 90 and take it easy after sat in traffic as the intercooler soaks up heat.

 

Also as welsh said you need to feed it with cold air.

[jimistdt 1]

Are you running 22psi to get the figures for the car in your sig? Thats pretty impressive....is that with the K03 Turbo?

 

I thought he was running the K14, I've not really studied the K03.

 

What intercooler set up are you using?

 

 

Cheers Jimi

[Rallyvan 0]

It's boost at 13/14 at the min so think am guna leave it until I get the front mounted on, then i can start cranking up the boost with little worries.

I'm planning on 4wd cossie intercooler with 406/zantia manifold, with custom made boost pipes.

Any other obvious mods that I am missing that will suit the above set-up?

Cheers lads

[jimistdt 1]

You're looking to do the same as me almost, except I've got the 2wd cooler. Wee Jimmy used the 406 inlet, i'll be looking to follow his wake - the Xantia manifold doesn't look like it flows too well, at least not next to the 406 one.

 

The other thing is the backbox, I don't know if you're doing owt with that, but ideally it wants to be the same or a little bigger than the rest of the system, in my opinion anyway, some say that it doesn't improve things that much, but to my mind if there is less back pressure then there will be less energy to stop the turbine wheel off-boost, in turn it will decrease the spool up time, due to the wheel having to accelerate less to give boost.

 

Are you going to use other OE parts for the cooler pipework, or custom as in metal and silicone? I'd really like to have a welded mandrel, will have to see if I can afford it at the time.

 

 

Once I've done all mine it'll be off to a diesel tuner to get set up, I'm planning 17 PSI, on the Lucas pump, and I'll see if it copes.

[Sloppy 0]

i just had std intercooler ruinning a littel over 22.

 

I had the ko3 as it spooks up really quick making the power come in much fast and making a longer power band.

[Rallyvan 0]

You're looking to do the same as me almost, except I've got the 2wd cooler. Wee Jimmy used the 406 inlet, i'll be looking to follow his wake - the Xantia manifold doesn't look like it flows too well, at least not next to the 406 one.

 

The other thing is the backbox, I don't know if you're doing owt with that, but ideally it wants to be the same or a little bigger than the rest of the system, in my opinion anyway, some say that it doesn't improve things that much, but to my mind if there is less back pressure then there will be less energy to stop the turbine wheel off-boost, in turn it will decrease the spool up time, due to the wheel having to accelerate less to give boost.

 

Are you going to use other OE parts for the cooler pipework, or custom as in metal and silicone? I'd really like to have a welded mandrel, will have to see if I can afford it at the time.

 

 

Once I've done all mine it'll be off to a diesel tuner to get set up, I'm planning 17 PSI, on the Lucas pump, and I'll see if it copes.

 

 

^^^^ Sounds like a decent set-up, but id definatly be on the look out for a bosch pump as they have much more tuning potential and are also much easier to work on.

Not sure what im doing on the boost piping side of things will probably cross that bridge when I come to it.

As for the exhaust at the min iv got the standard 205 td one on, but I'm planning on chopping the middle box out and just leaving the backbox.