TXD turbo?

demag · Post by **demag** » Wed Feb 11, 2009 1:15 pm

So just out of interest I think Kitch mentioned a difference in the cams. What is the difference? Would fitting a turbo cam to an n/a give it more power?

MULLEY · Post by **MULLEY** » Wed Feb 11, 2009 1:24 pm

Dunno about that, but the reverse is true.

DLM · Post by **DLM** » Wed Feb 11, 2009 6:28 pm

Would fitting a turbo cam to an n/a give it more power?

Some have suggested that a 1.9 normally aspirated XUD cam might make a +ve difference to the performance of a 1.7 turbodiesel. Draw your own conclusions from that....

Post by **docchevron** » Thu Feb 12, 2009 2:28 am

demag wrote:So just out of interest I think Kitch mentioned a difference in the cams. What is the difference? Would fitting a turbo cam to an n/a give it more power?

Oh good god no, it would barely move!
The turbo cam dont open the valves as far or for as long, so fitting a turbo cam in an N/A would result in the slowest car of EVAH.

Fitting an N/A cam in a TD though gives a nice increase in off boost torque, and a noticable bit extra on boost.

Philip Chidlow · Post by **Philip Chidlow** » Thu Feb 12, 2009 9:45 am

Does it affect economy much?

demag · Post by **demag** » Thu Feb 12, 2009 10:27 am

Blimey I didn't realise the turbo cam was so mild.

Post by **docchevron** » Thu Feb 12, 2009 1:08 pm

Philip Chidlow wrote:Does it affect economy much?

Which setup Phil?
Mild is a good word for it mate!

Philip Chidlow · Post by **Philip Chidlow** » Thu Feb 12, 2009 1:29 pm

Sorry, I was referring to the n/a cam in a TD engine.

Post by **docchevron** » Thu Feb 12, 2009 1:36 pm

Ahhh,
er, well, alot of it depends on driving style really.
Off boost economy is improved, only a tad mind, but it is slightley increased as the engine breathes better off boost with the N/A cam.
On boost though economy can be a bit worse since the ability for the engine to move air is increased a bit, and therefore if you drive like Michael Schumacer then it'll go a bit better, but economy will of course suffer.

As is always the case, you rarely get somehting for nothing!

Its negligable though, all in, the advantages far out weigh any tiny disadvantages.

Philip Chidlow · Post by **Philip Chidlow** » Thu Feb 12, 2009 1:39 pm

Spoke with Kermit today. This was discussed with respect to our BXagon TZD Turbo, so I was enquiring out of interest.

Post by **mat_fenwick** » Thu Feb 12, 2009 2:44 pm

I have a spare NA cam from a 205 if you want Phil. I think the pulley might need modifying to line up with the HP pump, but should be possible.

Philip Chidlow · Post by **Philip Chidlow** » Thu Feb 12, 2009 2:50 pm

Well, that's very thoughtful of you, Mat (welcome back BTW). It's Kermit's call. He's the one who knows...

YorkieTXD · Post by **YorkieTXD** » Tue Mar 03, 2009 4:33 pm

Roverman wrote:The 1.7TD and 1.9TD engines are quite different to their non turbo counterparts, they are strengthened, have different cylinder heads, gearboxes, cooling systems, exhaust etc etc. I would try geting it serviced and set up properly and if its still not fast enough maybe swop it for a TXD/TZD turbo as it would be far cheaper and easier.

Welcome to the forum and keep us updated to see if the service helps, my friend recently bought a 1988 19RD and it was woefully slow, a good service, some injector cleaner and good long runs with the "taps open" has made a HUGE difference.

well i changed the air filter oil and oil filter. the other thing i did is put super diesel in it. That has definatly made alot of difference. I am now however aiming to drive economically, as i only got 420 miles out of 52litres last month. avg MPG 36. however this was mainly urban and alot of hills. so not too bad i suppose.

ken newbold · Post by **ken newbold** » Tue Mar 03, 2009 6:22 pm

Make sure you are getting full throttle, sometimes the throttle cable can be out of adjustment or the pedal box could be cracked.