Tuning Pointless?

BonceChops · Post by **BonceChops** » 01 Oct 2003, 18:30

There is not that much between the 1769 and 1905 engines cc wise - it might just be the fueling and injectors that are different.

DLM · Post by **DLM** » 03 Oct 2003, 16:48

I always though that the performance advantages of the 1.7TD in a BX were to do with power vs. weight ratios. Not sure what difference there is in weight between 1.9 and 1.7 lumps (if any), or whether a 1.9TD ZX is notably heavier/lighter than a BX. Better check my BX manuals....
David

jeremy · Post by **jeremy** » 03 Oct 2003, 19:17

BX is in fact about 250 kg (quarter of a tonne) lighter than a Xantia in TD form and actually about 50 kg lighter than a ZX.
jeremy

pete woods · Post by **pete woods** » 03 Oct 2003, 23:39

So is there an easy tweak to release extra power from a 1.9 TD while still keeping it reliable?
By easy I mean without changing anything major like the intercooler.
What did you do to yours BonceChops?

BonceChops · Post by **BonceChops** » 04 Oct 2003, 00:20

Have a look at this
http://dodgeram.org/tech/dsl/more_power/Power_ve.htm
Neil.

BonceChops · Post by **BonceChops** » 04 Oct 2003, 00:21

oops and this,
http://philippe.trinquet.free.fr/

NiSk · Post by **NiSk** » 04 Oct 2003, 00:41

Hmmm - what about the ZX diesel automatic and the XM D then?<blockquote id="quote"><font size="1" face="Verdana, Arial, Helvetica" id="quote">quote:<hr height="1" noshade id="quote"><i>Originally posted by RichardW</i>

All TD units fitted to Citroen (cars) are intercooled*. Both the 1769cc (fitted only to the BX) and the 1905cc (Xantia, Xsara, ZX) produce around 90 BHP, with the 1905 unit making slightly more torque - oh and using a shed load more fuel[:(!] It should be easy then to squeeze another 8 horses out of the 1905 unit to get to the same specific power ouput as the 1769. Don't know why PSA made it the same power output (something to do with fitting in with the power bands that all manufacturers seem to stick to I expect!)
They definitely don't have turbos and I'm quite sure that if you looked a bit deeper you'd find even more.
//NiSk
RichardW
* There is an exception - the later Xantia 1.9D was badged 1.9SD and used a low blow turbo without an intercooler.
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