Are they normally this much?
wrinx
Are they normally this much?
wrinx
My Q4 in the Garage
www.alfaromeo155.co.uk ............................ □□□-V-□□□ .................................. www.ilmostro.co.uk
Wow, glad mine came with the car! Actually the whole engine set was by Spesso.
1993 Alfa Romeo 155 Q4 , 2.0 Turbo
from www.gozzoli.it you can have a far better grA head gasket {with separated rings} at just 220 Euro. I'll go for this one certainly.
We used it in a race prepared 75 Turbo with no problems at all when all the other one were blown after the 2 3 stage.
Nick
Taking a quick look on here Nyssa Racing they certainly look to be pricey, the one on ebay retails at ?240
1994 Alfa Romeo 155 Q4: Dozeing in the garage.
2009 Audi A4 tdi: Everyday drive.1994 Alfa Romeo 155 , 1995cc Std Standard Black
Ahh, as you say Steve, the auction is for a 1.9mm gasket which the site you listed sells for ?240!!!
EditL it also lists a 1.9 for ?96....so I guess "racing"on the ebay version is the GpA?
wrinx
My Q4 in the Garage
www.alfaromeo155.co.uk ............................ □□□-V-□□□ .................................. www.ilmostro.co.uk
got mine from walkers and it wasnt as expensive as that
lost in space
I think the Gp.A ones have the individual fire control rings so can deal with higher boost pressures. Delving back into my memory I seem to recall the standard Alfa head gasket was good for 1.4 bar, the regular Spesso 1.7bar and the Gp.A Spesso for 2.0bar+
But of course that could all be wrong.
1994 Alfa Romeo 155 Q4: Dozeing in the garage.
2009 Audi A4 tdi: Everyday drive.1994 Alfa Romeo 155 , 1995cc Std Standard Black
#67633 is a Group A headgasket.. But it should be possible to find one around 200 euro.
You can find Spesso catalogue (with a product number for each gasket) on http://www.tecno2.co.uk/gaskets.htm
Cheers,
M.
#67633 for 200€?? Where? I searched and could not find any for less than 300€.
--==simply the best==--
After a quick search found this:
http://www.shopmarianituning.it/icar...SC&sort=codice
euro 225 (pretax)
Last edited by mindus; 23-10-11 at 20:34.
So which gasket is the original thickness? the 1.4 or the 1.9?
Does the 1.4mm increase compression from standard? or does the 1.9mm reduce it from standard?
Steve
1994 Alfa Romeo 155 Q4: Dozeing in the garage.
2009 Audi A4 tdi: Everyday drive.1994 Alfa Romeo 155 , 1995cc Std Standard Black
The standard gasket (not the spesso one) has 1,9mm before tightening it.
So the 1,4mm should increase the CR.
Edit: I?ve just calculated CR change, new value with 1,4mm gasket is 8,22:1
Last edited by Juan AR155Q4; 05-11-07 at 20:37. Reason: CR calcultation
Just reviewed my calcs.
CR:
1,9mm -> 8,00:1
1,6mm -> 8,17:1
1,4mm -> 8,28:1
Calculation is supossing that head gasket thickness is the same before and after thightening. Obviously, that?s not right, but it?s a good aproximation.
If someone has the camber and piston volume, I could accurate much better.
I was told that with 1,6mm gasket the CR should be at 8,21:1 but I do not know the camber and the piston volume, sorry.
Nick
Could be as you say Nick.
CR with original gasket (1,9mm) is 8:1 but I don?t know wich is the gasket thickness after tightening the cylinder head. It surely be less than 1,9mm. So with 1,6mm the final thickness should be less increasing CR.
hello boys, pleaase see this link: http://www.navalineasport.it/
This company has excellent products & excellent prices!
1994 Alfa Romeo 155 Q4: Dozeing in the garage.
2009 Audi A4 tdi: Everyday drive.1994 Alfa Romeo 155 , 1995cc Std Standard Black
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