[Tony Peanuts]

Standard conrods ?
Why not lightweight forged ones ?

That is a good question and we did discuss it. Cost is one factor. Also the standard ones, I understand, are sufficient for the job unless you are going for big power with forced induction. The ones we're using are also balanced. Ned may want to elaborate with further reasons...

 

[pendragonfalls]

"Pistons being fitted with a specially made ring installer" Looks like a hammer to me...:lol:

 

[scottyf]

I would have imagined keeping the conrods the same as detailed by cost.
I wouldnt imagine they would offer more in terms of lowering the inertia of the engine parts anyway. Easier just to lighten the flywheel if you wanted a bit more of a response.

 

[Autolusso]

"Pistons being fitted with a specially made ring installer" Looks like a hammer to me...:lol:

Oh dear

Piston ring installer, is this tapered aluminium tube, 104 mm at the top and 101 mm at the bottom so when you push the piston down it the ring go into the ring mains and the piston slots easily into the bore liner

Ned

 

[Autolusso]

Standard conrods ?
Why not lightweight forged ones ?

Cost is a factor and it is not going to make the engine produce more power and we have never known of any failing other than hydro locking on water or more recently we have one lock on petrol that had a fail injector, that is another story though

Couple more pictures of the build

Ned

 

[Tony Peanuts]

Looking good

 

[Ducati rs 855]

want one lol...........

 

[KevinGTV]

That is one meticulous build . Excellent workmanship . Great thread to follow .

 

[cannotstop]

Cost is a factor and it is not going to make the engine produce more power and we have never known of any failing other than hydro locking on water or more recently we have one lock on petrol that had a fail injector, that is another story though

Couple more pictures of the build

Ned

I see. Thanks!
Looks good. I wish my sump was that clean

 

[NewAlfisti]

Very nice thread and seems like a lot of effort autolusso is putting in it. Well done...

 

[Autolusso]

Everything is getting cleaned thoroughly

Ned

 

[BeautifulBusso]

I've always been highly critical of these 3.8s but I have to admit, loving how your trying to get the issues sorted and how professional your being building a whole new kit etc.

Keep up the good work and even i'd be tempted by the 3.8 :thumbs:

 

[andycGT]

Good work to you guys at AL but as I said last week Ned , I am spending no more money, you can tempt me as much as you want with these shiny pics!!! ................

 

[Autolusso]

Now on to cylinder heads and head gaskets

Heads have been beautifully ported and polished, I have take pictures of a standard head and Stuart's heads and you can see the intake and exhaust have been extensively and subtly worked on by a real expert

On the head face you can see where the water ways have been moved to allow for the bigger cylinder liners, you can also see the very subtle polishing on the combustion chamber

Ned

 

[Autolusso]

Custom made head gaskets from America and the first head going down :thumbs:

Ned

 

[Hobson284]

Is the act of porting essentially polishing the rough cast finish to give a smoother airflow? What sort of difference does this make? One that can be felt when compared to an un-ported engine? So many questions...

 

[Biscione]

looks good

Just some questions as I am curious

How do you get the increased capacity? is it bored or stroked?

Also, do you have to make any other improvements for the extra power? cooling, brakes, chassis etc?

What are the charecteristics of this engine, is it a rev monster, or more torquey?

Cheers

 

[Tony Peanuts]

I've always been highly critical of these 3.8s but I have to admit, loving how your trying to get the issues sorted and how professional your being building a whole new kit etc.

Keep up the good work and even i'd be tempted by the 3.8 :thumbs:

If you ask very nicely, I might let you polish it for me

 

[Tony Peanuts]

looks good

Just some questions as I am curious

How do you get the increased capacity? is it bored or stroked?

Also, do you have to make any other improvements for the extra power? cooling, brakes, chassis etc?

What are the charecteristics of this engine, is it a rev monster, or more torquey?

Cheers

Bored.

It has the Autolusso bigger oil cooler but no other mods to cooling.

Brakes are 330s with PF pads and high temp fluid. Maybe one day I'll go for something more special but that's just because I'm a tart. In reality, 330s should be plenty good enough for the use I'm going to be putting it to 99% of the time.

Suspension mods include, Eibach ARBs, front strut brace and eibach coilovers with uprated springs. I have some more refinements planned but that's a later stage.

Engine is being built to be torquey. I am sure some will say that I am compromising on top end power gains but I have no interest in having to thrash the life out of it for high bhp figures. I'm much happier with the great big slab of torque that this should deliver in the mid range.

 

[Tony Peanuts]

Everything is getting cleaned thoroughly

Ned

Good good. You know I have OCD about these things!