16 Valve Xu10s

[Pug_101 0]

3 dr volcanes dont look too bad

 

Not quite the same league as a GTi6 in the looks department

 

I did quite some research into the xu10j4r head. (since I use it on my turbo engine)

 

There are a few differences.

The main thing is the camshafts. (1 or 2 mm more lift)

The valves are lighter but the same size

Double valve springs

and a few other things

 

From a performance point of view I would think that just putting the xu10j4rs cams in will minimize the difference between the two.

 

The castings are the same by the way... But stay away from the 1.8 heads.

 

Whats wrong with the 1.8L heads?

[jackherer 543]

same with the 306, it's both ZX and Xsara.

 

ZX = 306 phase 1 (hence the ZX16v being the same as a 306 S16)

 

Xsara = 306 phase 2 (Xsara 16V = 306 GTI6)

 

 

they just facelifted the citroen more than the peugeot and changed the name.

[gti_al 1]

Whatever it is, it is bloody ugly... It had want to go well.

 

This is all sounding promising anyway. I'm going to have a look at that red 306 in the next couple of days, and if it is ok i'll put a bid on it.

 

Compared to an Mi16 swap, how hard will the wiring be? I've done a decent search, but most end in maxi saying he will sort it out...

[jackherer 543]

Whatever it is, it is bloody ugly... It had want to go well.

 

the one in the pic above is a five door base model with jacked up suspension...

 

this is the sorted model:

 

 

it may not be to everyones taste but you should at least compare like for like

[gti_al 1]

the one in the pic above is a five door base model with jacked up suspension...

 

this is the sorted model:

 

 

it may not be to everyones taste but you should at least compare like for like

 

Despite still looking like a citroen, that isn't bad at all... I guess the beige one wasn't exactly doing the model justice. I think i actually saw some of those last time i was over - i didn't realise what it was called then though.

 

Do they have the funky hydraulics?

[Guest davebxgt]

Despite still looking like a citroen, that isn't bad at all... I guess the beige one wasn't exactly doing the model justice. I think i actually saw some of those last time i was over - i didn't realise what it was called then though.

 

Do they have the funky hydraulics?

 

No, basically a 306 under the skin.

 

Dave

[Baz 421]

So have we come to the conclusion that the XU10J4R is similar to the XU10J4RS in the bottom end, and if the GTi6 (XU10J4RS) cams and manifold were added there would not be much difference at all?? Would it then make similar power, does anyone know of any differences in the management or induction?

 

*Cue a rush of XU10J4R's being pilfered from the breakers!!*

Edited June 12, 2006 by BazGTMi

[KRISKARRERA 2 1 Cars]

You mean XU10J4RS!

[PsychoSimon 0]

Does anyone have specs for the valve sizes and cam duration/lift compared to a 1.9mi16 head?

[Baz 421]

You mean XU10J4RS!

 

yep i do!! Thanks Kris, now rectified!!

[gti_al 1]

Have i stumbled across a good idea here...? PeterT mentioned on aussiefrogs that the xu10j4r cams can be ground to the same or "bigger" than gti6 ones, which is good as it will save me having to find some from a 6.

 

It will be interesting to see how this goes. The prospect of a 2000 model engine is much better than my 260000+ km 87 one, regardless of how much harder it goes...

[gti_al 1]

So have we come to the conclusion that the XU10J4R is similar to the XU10J4RS in the bottom end, and if the GTi6 (XU10J4RS) cams and manifold were added there would not be much difference at all?? Would it then make similar power, does anyone know of any differences in the management or induction?

 

*Cue a rush of XU10J4R's being pilfered from the breakers!!*

 

Bit of a dig... but i've suddenly become interested again as it looks like i've bought one of these. Anyone know whether the above is vaguely true?

[david932 0]

i would say the management will almost certainly be different as it's powering a different spec with diffenent cam durations and i would imagine different ignition advance, but what about a custom remap?

[gti_al 1]

This is a trully bastard twist of fate... as soon as i am offered a cheap, very low km (50 000) engine i can't register it! Back to the 300 000kms mi16 then.

[Mattsav 1]

The cam specs I have are:

 

RFV: 196°@1mm / 7.90mm Lift

RFS: 215°@1mm / 10.00mm Lift

 

You can see why the Gti-6 makes a bit more power!!

[petert 550]

Very similar to a D6C, 214 deg. @ 0.050", 9.2mm.

[gti_al 1]

Very similar to a D6C, 214 deg. @ 0.050", 9.2mm.

 

Just found a post on aussiefrogs from someone who used gti6 cams in a Xsi... apparently with good results.

 

This engine was such a bargain... $800 for a 50k kms old complete engine, loom and ECU! Still, i've found a 1.9 Mi16 still on the road for $1000. That will do... even with 300+ k kms.

 

I hope you are still good for that offer of a plug and play loom peter! I start to feel sick when i think of wiring...