ALFAGTV6.COM

I'm ( FINALLY !! ) at the stage of putting stuff back into my car and I wanted to know where the weight is going in - for when I decide I need to get rid of some more.
I plan to weigh as many of the bits as I can before they go back in - including the complete engine and complete transaxle.
Here are a couple to get it started - flywheels.

I no longer have a standard V6 flywheel to compare to but the lightened one off my 2.5 came in at 7.3kg and if I remember right (it was 10+ years ago) I pulled nearly 5kg out of the standard one to get this.

The 2nd flywheel is the "new" one from the 24v engine. It is an automatic flywheel with an adapter for the tailshaft - 7.45kg including tailshaft bolts.


The standard 2.0 flywheel & clutch assembly that I was using on my 2.5 weighed in at 10.85kg while my lightened flywheel & custom clutch assembly is a little lighter at 8.2kg - all of it off the outside where it counts most.

Now if only I can work out how to get the pictures amongst the text instead of below it all

if you post your pictures on tinypic ( www.tinypic.com) you can put the picture on this forum by using the following method:

[img]***********[/img] in place of the stars you put the adress of the picture...

if the adress is http://www.myimage.alfa1.jpg then the link would be

[*mg]http://www.myimage.alfa1.jpg[/*mg] where the * must be an i offcours...

More bits -
Lower arm and ball joint - 6.55kg
Upper arm and ball joint - 1.7kg
Castor rod and ball joint - 1.4kg
25mm Torsion bar (each) - 3.8kg
27mm Front AR bar - 6.5kg
24mm Rear AR bar - 4.8kg
Front upright (spindle) and hub (standard) - 6.55kg
Front upright (spindle) and hub (extended / drop spindle) - 7.0kg
Steering rack (manual) - 4.75kg
Pedal box assembly (RHD including cross rod,booster etc, no clutch pedal) - 13.3kg
New pedal box (with dual brake masters and adjustable bias, no booster, clutch pedal from original assembly) - 5.75kg
Original 15x6 wheel - 7.7kg
16x8 wheel (the cheap Mazda one that you guys hate ) - 7.4kg
16x8 wheel with 215/45 tyres - 17.1kg
GTV6 brake rotor - 5.7kg
302mm brake rotor - 6.6kg
GTV6 Brembp caliper - 2.45kg
Mazda 4 spot caliper - 3.3kg

The majority of this stuff is shown previously in stages of my build-up http://www.alfagtv6.com/bb/viewtopic.php?t=1690

Now some big bits -

DeDion A frame, complete with cross member and hubs (no watt link) - 32kg

Transaxle, complete with clutch etc, brake calipers but no rotors - 72kg no wonder I had trouble lifting it out.

and .......

The heart - the 3.0 24v V6, complete with reduction starter. No plenum or exhaust manifolds - 182kg.

Now if I can only get better than 1kw per kg out of it

Some good resource info there Daniel. Great to see your project starting to make some inroads.

Glad to see you switched from white to red. I am told red is good for an extra 5kmph...

Thanks for sharing your info Daniel. This is an interesting thread.
Some mass reduction on my car (12v):

Front flwheel w/ring gear: 3.5kg
Front pulley w/counterweights: 1.35kg
Pics show suspensionparts and front pulley..

Hey Jarle
I like the suspension bits. I'll do something like that for the next evolution of this car. I just need to get it going now - I want track time

The more bits we weigh and post, the better.

1978 Alfetta front bumper - 3.1kg with brackets.

Here are some part weights from a 1978 GTV. Should give people a few ideas:

Front metal bumper (incl brackets but excl over-riders) 3kg
Rear metal bumper (incl brackets but excl over riders) 4.2kg
19mm torsion bars (pair) 4.5kg
28mm torsion bars (pair) 9.5kg
Wiper motor plus linkage and mounting bracket 4kg
Drive shaft (shorter type) 4.5kg
Battery 380CCA 12.7kg
Race car battery (ie. Odyssey or Deka) 5-6.6kg
Battery from my Subaru Impreza 280CCA 8kg
GTV Prop shaft 11kg
GT Prop shaft (factory alloy centred donuts) 9.75kg
Rear seats 12kg
Rear seat belts 1.3kg
Front seat belts (pair) 2.6kg
Carpet 4.5kg
Heater box incl fan but excl AC 6.5kg
Drivers seat 21kg
Passenger seat 16.75kg
Underlay (excluding boot and firewall) 11.5kg
Bitumen inside car to floor pan and boot 12kg

Regards

Very interesting, thanks.

This is an excellent thread. Just when you think you are wasting your time stripping something out you can start adding the kg's up mentioned above and actually see where you should start and what benefit(eight loss) you will get. What do GTV6 doors, tailgate and bumpers weigh complete.(going to make exact in fiberglass )
With all this info you can plan your diet.

I'll weigh my fibreglass 2.0 front bonnet and rear hatch in the next week or so....be interesting to compare to a stock set. The rear hatch also has an acrylic window fitted.

I have a stock hatch, a GTV 2.0 bonnet and slightly modded GTV6 bonnet that I will weigh this weekend. I plan to replace the rear glass with poly carb so that will make a little difference.

Anybody know what the chunky metal bits inside the plastic front bumper on a GTV6 weigh? What to know if it is 'worth' pulling apart to seek a weight saving.

I think I have one of them (I know I have complete GTV6 F & R bars) that I can weigh this weekend.