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 Posted: Tue Dec 08, 2015 5:11 pm |
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Joined: Nov 03, 2015
Posts: 23
Trade Rating: 0
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Last edited by CJH20 on Tue Dec 08, 2015 7:36 pm; edited 1 time in total
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Posted: Wed Dec 09, 2015 4:45 pm |
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Joined: Jun 20, 2012
Posts: 1171
Trade Rating: +1
Location: West Country
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I got exactly the one you have (the dirty one), from 2.0 HDi year 2000
The bigger cut-out is for some reason shown on service box no matter the model, and there don't seem to any visually different variants, all schematics are the same
Bigger cut-out is probably for a bigger exhaust/cat/dpf/what not, are you sure mounting points don't line up at all, maybe give it a wiggle?
Got me curious now, as it would be nice to protect the sump when car is lower 
Why are you renewing yours, something snapped? 
I guess last resort is to call a dealer and try to describe visual differences, see what they come up
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Posted: Thu Dec 10, 2015 2:21 am |
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Joined: Nov 06, 2015
Posts: 66
Trade Rating: 0
Location: West Sussex
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Does this mean I could get one for my GTI? Would also like a bit of protection for the sump and also helps keep it a bit cleaner under the bonnet
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Posted: Thu Dec 10, 2015 2:38 am |
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Joined: Jun 20, 2012
Posts: 1171
Trade Rating: +1
Location: West Country
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yes, but like Edward once said, petrols are hotter and this wouldn't help them cool
Also for those prone to leak things, it would be harder to notice one (otoh driveway could stay clean ) Unless you probe your car regularly  (search for probe for a follow up story of mine )
I also search by part number -- looks like sellers don't bother putting up an actual picture, random ones with big cut out, others with small
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Posted: Thu Dec 10, 2015 3:06 am |
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Joined: Nov 06, 2015
Posts: 66
Trade Rating: 0
Location: West Sussex
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Thanks for that might be something to consider but might need more ducting to keep temp down.
Just looked on service box but cant find info on different types etc
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Posted: Thu Dec 10, 2015 9:47 am |
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Joined: Nov 03, 2015
Posts: 23
Trade Rating: 0
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I found one that looks similar on ebay . Item number 331468927480
But the vents look a bit different ... what do you think ?
Thanks for the replies and info ...
Col
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Posted: Thu Dec 10, 2015 10:30 am |
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Joined: Jun 19, 2010
Posts: 1600
Trade Rating: +4
Location: South Bucks
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Shouldn't make that much difference in a petrol .. there are plenty of holes and gaps around the under-tray ..
I've got an alloy one on the Alfa and it makes no difference to the engine temp but it does keep the engine bay a lot cleaner!
And when you hear scraping it's a replaceable sheet of metal and not my gearbox/sump bridging plate !!
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| Down to just the 1.4 HDi. Cayman Green 2.0i CC sold. | |
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Posted: Thu Dec 10, 2015 10:35 am |
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Joined: Jun 20, 2012
Posts: 1171
Trade Rating: +1
Location: West Country
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Well Edward has TBs in his petrol, so heat reasons are to be considered in modified scene:)
im afk now, will look at ebay later, unless someone else does
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Posted: Thu Dec 10, 2015 10:55 am |
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Joined: Nov 03, 2015
Posts: 23
Trade Rating: 0
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Thanks
But mines a Diesel HDI 2.0 . not Petrol.
Only changing it because after the oil change I found it was a bit worn out.
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Posted: Thu Dec 10, 2015 3:03 pm |
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Joined: Feb 08, 2010
Posts: 7045
Trade Rating: +5
Location: In the garage
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Some petrol engined cars do have under trays fitted. I guess the main reason on a diesel is to reduce noise.
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| 2001 GTi 138, Bilstein Sprint dampers, H&R springs, 21mm Peugeot Sport torsion bars, 22mm rear ARB, Peugeot Sport Group A wishbones, 283mm discs, Goodridge stainless hoses, Maniflow 304 grade 4-2-1 2.5" manifold and system, 200 cell cat, Richard Longman head, 45mm Jenvey throttle bodies, 9.5mm TB spacers, 90mm air horns, Jenvey throttle linkage, Jenvey fuel rail, Aeromotive and Goodridge fuel fittings and braided hose, ITG sausage filter, Radtec custom radiator, Piper Ultimate Road cams, Piper vernier pulleys, Omex 600 ECU. Saxo electric PAS pump, Vibra Technics engine mounts. Samco coolant hoses, TTV steel flywheel, 4.76 final drive ratio, 307 CC 180 ratios. 2019 BMW 530i. 2017 Mercedes C300 convertible. | |
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Posted: Thu Dec 10, 2015 6:48 pm |
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Joined: Feb 24, 2010
Posts: 2596
Trade Rating: +17
Location: North West Wales
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Wouldn't have thought an undertray would make that much of a difference as heat rises. Granted not as much cold air would be able to enter from underneath, but the effects shouldn't be too major.
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mines the dirty one .. if you didn't guess ! 
