speedview
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| posted on 29/1/12 at 01:42 AM |
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IVA emissions testing - ONE or ALL tailpipes?
Evening all - especially V8 IVA people...
Does the chap test ONE tailpipe or ALL the tailpipes? (its a linked system/you can blank one tailpipe and it'll run fine) Can you choose/express
a preference?
I've 5 bar on two pots of the left bank of my pre-98 Nikasil linered V8, with lots of breathing back into the intake. It'll sort-of fire
once hot but doubt the emissions from the left tailpipe are spectacular. It'll get swapped after test, but would prefer not to at the minute as
I'm close on axle weights and the supercharged XJ engine weighs a bunch more.
Cheers,
--
Marko
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theconrodkid
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| posted on 29/1/12 at 05:45 AM |
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they take a rading from both and use the average
who cares who wins
pass the pork pies
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russbost
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| posted on 29/1/12 at 10:17 AM |
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What he said^^^
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NOTE:This user is registered as a LocostBuilders trader and may offer commercial services to other users
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mark chandler
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| posted on 29/1/12 at 10:36 AM |
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Maybe you need to talk to him nicely, I was able to run through on the good side !
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speedview
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 posted on 29/1/12 at 11:59 AM |
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Ah!
I guess we'll see how good the cats are. (they do still fire, just don't do much)
That, or pull the injector harness on one bank! (runs quite happily as a 2.0 four-pot)
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Dusty
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| posted on 29/1/12 at 03:33 PM |
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quote:
I'm close on axle weights and the supercharged XJ engine weighs a bunch more.
Have you already submitted application for IVA, declared axle design weights and gross design weight? If not then you need to consider new weights
that give you more leeway. Remember they are going to measure and weight your car at IVA and add 150kg for passengers and luggage. This 150 kg then
gets divided, depending on axle positions how much is apportioned to each axle and then checked against design weights. Exceeding any of the design
weights is a fail.
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whitestu
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| posted on 29/1/12 at 03:43 PM |
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quote:
Maybe you need to talk to him nicely, I was able to run through on the good side !
I must have talked nicer 'cos mine didn't go anywhere near the car!
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speedview
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| posted on 1/2/12 at 12:42 AM |
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Application not submitted yet Dusty but I'm stuck with the maximum design weights as supplied by Jaguar - 1030 kg front, 1225 kg rear, 2260 kg
total, and no going over these.* It isn't a locost, but you folks know more than most. 
http://www.cosic.org.uk/MarkoStuff/xj8/XJ8%20-%20Jan%202012%203/images/img_8451.jpg
4-abreast seating in the rear adds 300 kg:
http://www.cosic.org.uk/MarkoStuff/xj8/XJ8%20-%20Jan%202012%203/images/img_8377.jpg
And the towbar means 76 kg of noseweight to add:
http://www.cosic.org.uk/MarkoStuff/xj8/XJ8%20-%20Jan%202012%203/images/img_8440.jpg
So 526 kg payload on top of the weight added strengthening the bodyshell for removing the roof.
10 litre fuel tank and the 063 MX5 battery are permanent features, right?
http://www.cosic.org.uk/MarkoStuff/xj8/XJ8%20-%20Jan%202012%203/images/imag0505.jpg
http://www.cosic.org.uk/MarkoStuff/xj8/XJ8%20-%20Jan%202012%203/images/img_8371.jpg
*Unless I can find a slightly different model XJ8, like the Daimler Super V8 with 1070 kg front axle plating, and show that it has the same parts -
anybody have a Jaguar parts catalogue?
http://www.cosic.org.uk/MarkoStuff/xj8/XJ8AxleWeights/
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