Double Dutch

[Chilm]

Did you know that Volvo provided extra enhanced Airbox clamps in case the original one's broke down?



Yes these ones:



Really taylormade by Volvo:



BAM:



Now I'm looking for some new headlight glasses, they fell out hmmm...

[MadDog_945]

:D i once did that on a Autobahnrastplatz to move on.. ;)

Nice and clean build.. :D

[Chilm]

Originally Posted by MadDog_945

:D i once did that on a Autobahnrastplatz to move on.. ;)

Mmmm ... Autobahnrastplatz = Bratwurst mit Sauerkraut

[Dirty Rooster]

A lot of my airbox clamps are knackered : great tip!!

[Chilm]

I have been weighing all of my connection rods. Three of them are between 478 and 481 grams very nice, number four is weighting 506 gram that is waaaay too much imho. I want to grind that one off at the shoulders, is that a good idea?

[culberro]

You want to weight them with the caps on. Then you match the weight of the big-ends and the small-ends. There are pads on the cap where you remove material, and the pads on the side of the small-end are where you remove material as well.

[Chilm]

Originally Posted by culberro

You want to weight them with the caps on. Then you match the weight of the big-ends and the small-ends. There are pads on the cap where you remove material, and the pads on the side of the small-end are where you remove material as well.

That's a very clear answer, thank you very much man...

[culberro]

Good video that walks you through the process.

http://youtu.be/QLpiF0E0EJU

[Chilm]

Originally Posted by culberro

Good video that walks you through the process.

http://youtu.be/QLpiF0E0EJU

Great video thank you Culberro, that tells the story...

[Chilm]

Been weighing and grinding my connection rod's and they are now exactly 716 grams each.
So that's done too for the bucket list (thanks to culberro for the link).

[Chilm]

A short story about the oilpump, mainly because I've got my engine totally dismantled and I
don't want to spent a whole lot of money for a new big fancy oilpump so decided to just
check and then port the old one.

After measuring i thought that it was a ok to start porting.
There are a lot of hairy edges in the internals to work on for better flow in my opinion.
Just see for yourself...

And if it doesn't help it won't hurt either

[Dirty Rooster]

You'll port and polish anything won't you!!

(Yeah, arse-joke in there somewhere )

[Chilm]

Originally Posted by Dirty Rooster

You'll port and polish anything won't you!!

(Yeah, arse-joke in there somewhere )

Grrrmbllll...

[rcdude]

Fantastic build so far! I envy your attention to detail.

Would you say it was truly worth you time with the head work?
I am thinking of doing something similar to a spare 530 head on bench.

Mike

[Chilm]

Originally Posted by rcdude

Fantastic build so far! I envy your attention to detail.

Would you say it was truly worth you time with the head work?
I am thinking of doing something similar to a spare 530 head on bench.

Mike

It sure is, especially with a 531 head because it's "breathing" more then the 530 head.
Also the position of the sparkplug is better (towards the outlet) and the combustion chamber has a different design too. I also shrouded the chamber at the outlet side, as you can see in the pictures.

But... this one is not on yet and i did not measure the cc's so the gain will be a matter of trial and error. But together with all my other updates (still in progress) it must be worthwhile in my opnion.

[dopski]

Nice head grinding. Did you mach the chambers size too with some liquid?
And did you flatten the head to increase the compression (grinding and 531 makes the compression chambers larger than original)?

[MikeJr.]

Nice fab skills sir

[Chilm]

Originally Posted by dopski

Nice head grinding. Did you mach the chambers size too with some liquid?
And did you flatten the head to increase the compression (grinding and 531 makes the compression chambers larger than original)?

Thank you Dopski,

no i did not measure the cc's, dunno why, maybe stupid but i think they are pretty equal although i am guessing that
I am going for tight squish and i have to do the maths for it with the current block hight and going for the Comet way in that case. The head is in the shop now and allready flattened, i'll have to get it back woot woot. But you know the head hight has nothing to do with tight squish, only the block hight, piston clearance and the used gasket height.

Originally Posted by MikeJr.

Nice fab skills sir

Thanks Mike, very appreciated.

[Chilm]

My TB conversion plate for a 960 TB to the 940 (ported) inlet. I used a thick aluminium plate as "middleware" for the mounting. I think the pictures will speak for itself. The final mounting is done with epoxy raisin (JB weld as you call it) and one allen screw, it is very stirdy and will even hold against the heat and heavy vibrations. Again this is a little piece of the whole tuning picture in general.

































I will post the build results later, everything has to be put together after I am finished with all parts

[Dirty Rooster]

Nice job with that middle adapter plate,
how much could you enlarge the manifold entrance by? Just a little?

[Chilm]

Originally Posted by Dirty Rooster

Nice job with that middle adapter plate,
how much could you enlarge the manifold entrance by? Just a little?

Thank you,

as you can see in the pictures from 59 mm. to 65 mm. same diameter as the TB otherwise it's useless

[Chilm]

At last found the guts to grind a hole in my right front fender to make a airduct for the airfilter inlet sticking in the fender. Stolen the idea from "Frans" (hello Frans) so all credits to him. First lined out the area to grind:



After grinding I sanded the edges and painted them too against corrosion.



Nice to see where the inlet sits in fact...



Preparing the airduct (cheap from ebay Ford Cosworth hood scoops).
You are looking at the back side/inner side.



I had some gauze from a music box laying around which I cutted and sprayed.
Did some bending too so it sits nice and tight. Automotive tape and Voila...



Sprayed the duct in the color of the car so that does not stand out too much.



Final result looks nice I think, like it's original (imho).
Butt dyno says better throttle response in the midrange. And ofcourse more and cooler air...

[Dirty Rooster]

Awesome scoop inlet, do you have a link to the original you borrowed the idea from?
I'd love to see a red Volvo with an "F-40" version from the 1980s.

[Chilm]

Originally Posted by Dirty Rooster

Awesome scoop inlet, do you have a link to the original you borrowed the idea from?
I'd love to see a red Volvo with an "F-40" version from the 1980s.

At your service... (car from v700R a.k.a. Frans)

[moise]

nice job!