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  #1  
Old 26th June 2014, 04:13 PM
Davidbolam Davidbolam is offline
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I'm just about to fill in my IVA form but not sure what weights shall I put down on my IVA form?

what has anyone else done for this?

David
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  #2  
Old 26th June 2014, 04:27 PM
Peter-C Peter-C is offline
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I put down 450 kg, 450 kg and 900 kg gross. This is the same as on my manufactures plate. The examiner said that was ok.
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Old 26th June 2014, 04:41 PM
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K4KEV K4KEV is offline
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yep they are the numbers I used.... BUT the way I built mine sent my rear axle weight over but being the manufacturer you can just write it down on a piece of paper informing them /him of a specification change
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Old 26th June 2014, 05:14 PM
Davidbolam Davidbolam is offline
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Thanks for the replies

I will fill out the forms hopefully this weekend


David
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Click to see my build photos on Flikr

http://www.flickr.com/photos/67112582@N03/

Saturn MX5 Based Chassis, Limited Slip Diff & 2.4 Quick Rack.

Build cost.... seems to be spending more on tools than car bits at the moment! (they will be handy in the future though).
Car iva'd and passed 15/08/2014. Finished weight 572kg.
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  #5  
Old 26th June 2014, 05:29 PM
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Stot Stot is offline
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I did the same. My MX5 build is weighing in at ~620kg without fuel so if there is more than 450 over the back something is up!

Cheers
Stot
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  #6  
Old 26th June 2014, 09:24 PM
baz-r baz-r is offline
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i put the same as thats in the book and i pased fine even with a 35l fuel tank

axle 1=450kg
axle 2=450kg
total = 900kg
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  #7  
Old 27th June 2014, 09:21 AM
flyerncle flyerncle is offline
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It does not make sense the weights being the same,if you put both axles at the same weight then the DGW is say 900 kg one axle would possibly be overloaded ie the front one.
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Old 27th June 2014, 02:39 PM
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450 / 450 / 900 worked for me.
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  #9  
Old 28th June 2014, 07:42 PM
flyerncle flyerncle is offline
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After thinking about it,its probably good numbers and maybe a little high for the rear.
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  #10  
Old 30th June 2014, 08:48 AM
snapper snapper is offline
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The axle weights are the max fully loaded that the car is designed to take not the actual as measured
Weights include full fuel tank 25 to 35Kg
Driver and passenger 75Kg each
Luggage 25Kg each

Design weights for IVA are used to find if the build is within design limits and also to work out the brake bias when tested on the brake rollers
As axle weights are measured on the rollers and one axle is on the hard standing there is a slight lever effect
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