No it doesnt have an intercooler. what do you recommend?
cheers
Firstly, check whether or not an intercooler can be easily fitted. I imagine that it would be possible with only a small amount of extra 'plumbing'. I'm not a mechanic so I cannot advise directly but retro-fitting one is not big deal. You're only dealing with space under the bonnet and the higher spec HDi 307s will have them without doubt.
It's worth contacting your chosen tuning specialist as well and asking the question. Many are very well versed with such information.
An intercooler alone will not score you much torque at all (and therefore not much power) but fitted before a remap can make a starting difference when the ECU code is re-written.
Celtic Tuning has a superb reputation and I have personal experience of their work, for which I can vouch unequivocally.
An intercooler is pretty much part and parcel of a turbocharged engine, whether petrol or diesel, aero or marine etc etc.
The 1.4HDi you have is basically setup to provide outstanding fuel economy figures yet offer a reasonably pleasant drive.
I'd recommend fitting an intercooler and then engaging a good tuner to remap the ECU control code. Do tell them that it has a retrofit intercooler - it leaves them much more flexibility with boost pressure limits etc.
Even with a remap I doubt you'll burn any more diesel. It's more than likely that you'll burn less!!
After a good remap you will find your engine much much smoother at all revs - a good tuner will smooth out the torque delivery firstly and only when that's in order will they start to sympathetically increase fuelling and boost pressure in equal order.
It's a complex process, but even some of the 'off-the-shelf' remaps can be very good indeed.
Do make certain that they don't just reflash the whole ECU; you don't want car specific code overwritten with generic code. This could lead to problems should the car be stolen etc.
Even with a 'generic' map you only want the portion of the code replaced which controls the engine parameters, not everything else as well.
So, in my opinion, proceed confidently but do check your sources of information.
Kind regards,
Paul.