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View Full Version : Some nice work going on here:



AlfaJack
29-08-07, 15:01
http://alfapower.no-ip.org/viewthread.php?tid=21614&page=4 :cool::cool:

Steve Webb
29-08-07, 16:16
Is that an exhaust backbox in the middle of the picture?

http://alfapower.no-ip.org/viewthread.php?action=attachment&tid=21614&pid=215126

And when taking pics of parts for the car, try not to get your blue movie collection in shot. Check out the left hand side of the pic.:eek:

wrinx
29-08-07, 16:37
:eek: I've just noticed that too!!!

:doh:

wrinx

arjunior45
30-08-07, 15:18
and what about that :
http://alfapower.no-ip.org/viewthread.php?tid=21614&page=9

upper photo of coarse

Juan AR155Q4
31-08-07, 20:43
Has anybody seen this:
http://alfapower.no-ip.org/viewthread.php?action=attachment&tid=21614&pid=221976

No balancer-shafts, and doesn?t seem to use a cranckshaft balancer. What about vibration?

wrinx
31-08-07, 20:48
Sub155's old Twinspark had the balancer shaft removed and it was ok....don't forget the 1.8 Twinspark doesn't have them anyway...

wrinx

Juan AR155Q4
31-08-07, 22:47
1.8TS is a total different engine, not only head, I?m right?
A friend of mine in his Tipo 2.0 16v (same engine as Q4 without turbo) broke his balancer belt and the engine didn?t rev over 4500rpm, and all the car vibrated in a very unsual way, as it?d explote in any minute.

wrinx
31-08-07, 22:56
Don't know how it would affect a Lampredi engine, only that it's fine on a Twinspark.

wrinx

Steve Webb
01-09-07, 08:12
I've heard of a few 'grales that have just had the balancer belt removed. If you remove the balancer shafts you then need to sort out the oilways running to them. The theory is that it gives you a couple more bhp (not sure it is that hard to spin up a couple of shafts) and also means that there is one less belt in there to snap and take out the cambelt.

AlfaJack
01-09-07, 10:29
The balancer shafts spin so freely I cant imagine you could actually feel a difference on a balanced engine - obviously on an unbalanced (standard engine) without them spinning you do feel the difference.

pavs
01-09-07, 11:12
My car snapped the balance shaft belt when I picked it up from Jack, I drove it to Glasgow from Portsmouth (450 miles) without the balance belt and I can say from personal experience keep it on.

wrinx
01-09-07, 11:26
:cry:...bag of nails?

wrinx

arjunior45
03-09-07, 07:06
do not underestimate the vibrations! It is not that important if you feel them or not. They can and will cause problems even in the car chassis. And a couple of hp you can have them anyway.

Cheers

Ricardo
10-01-18, 19:38
The main reason for deleting the balancer belt in the integrale is to allow a wider cam belt and pulleys because the stock one is marginal and there isn't any room in there otherwise. I recently sat in an Evo integrale without balancer and you can instantly tell. Nowhere near as smooth. Its useable, but feels more like a competition car than a road car, over time it would bother me.

AlfaJack
10-01-18, 19:56
I've run mine without the belt (but with the front shaft locked) for years and I think I've just got used to it. Doesn't both me although at first you can tell.