Xmt - Sarty's Xsara GTI6 Turbo

[DrSarty 90 1 Cars]

And will one of the mods PLEASE change this topic title to GTI6 instead of Mi16.

 

It should also be 'Xsara XGT' as a result.

 

There is nothing Mi16 about this build, other than it probably being an ancestor of the GTI6. Plans changed... as they do.

 

It's a GTI6 block (bored out), a forged diesel crank, a GTI6 inlet & a modified GTI6 head, bolted to a VTS 'box (with Quaife). From an engine perspective, everything else is custom. It's barely even a GTI6!

Edited January 9 by DrSarty

[pug_ham 240 3 Cars]

3 hours ago, DrSarty said:

And will one of the mods PLEASE change this topic title to GTI6 instead of Mi16.

Done.

 

g

[DrSarty 90 1 Cars]

Thanks G.

 

Questions: I've never really understood why some cars have a vacuum pump. They are typically run off the end of a camshaft. I've removed mine from all of my Naturally Aspirated (N/A) builds as the vacuum/servo assist has always come directly from the inlet manifold & I've never had an issue with braking assist.

 

1. Why are they used, especially on N/A cars?

 

2. IF they were there explicitly for Forced Induction (F/I) cars - turbo or supercharged - which clearly they are not, I'd perhaps understand it, as PERHAPS the manifold pressure situation is different on F/I cars. But as this engine is turbocharged, (a) do I need a vacuum pump & (b) if not, how do I supply vacuum to assist the servo?

 

I'm sorry if this is a dumb/already covered question.

 

EDIT: Started to do some research. I think I'm going to get & use an electric vacuum pump:

• This video plus some useful text below

 

Edited January 12 by DrSarty