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Old 10-30-2017, 08:31 AM   #1421
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TIP: Magpie/Epigam, use hotside/coldside rather than passenger/driver side on this forum, most of these guys drive on "the wrong side of the road" :P
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Old 10-30-2017, 04:39 PM   #1422
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Quote:
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TIP: Magpie/Epigam, use hotside/coldside rather than passenger/driver side on this forum, most of these guys drive on "the wrong side of the road" :P
Then our Kswapped brethren will become thoroughly and hopelessly confused
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Old 10-30-2017, 07:19 PM   #1423
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Then our Kswapped brethren will become thoroughly and hopelessly confused
OK, Port and Starboard it is then!

Which side's Port? :P
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Old 10-30-2017, 09:12 PM   #1424
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I spent 10 years in the Royal Australian Navy so Port/Starboard are acceptable terms

Last edited by Eipgam; 10-30-2017 at 10:34 PM.
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Old 10-31-2017, 11:53 AM   #1425
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It was a swap deal

By the way Beavis Eipgam is Magpie spelt backwards in case you did not realise who it was.
While I don't usually spend my nights working on forum name anagrams, I knew it was you from the pic of the car.
Don't worry I'm watching you closely, you provide great info and insight for us other grassroots time-attackers
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Old 11-10-2017, 10:39 PM   #1426
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Looked at some data to see if the drag has changed since the mods have been done.
3 years of data from WATC when I was going down the main straight and had gear changes. The distance used was 507.2m.

Each time was on 205/50/15 brand new AD08R's
2017 the car had a different splitter, increased rear wing AoA (Singular end plates), lighter wheels 8" rims and no rear mud flaps.
2016 - previous splitter, 7" 6UL's (lightest wheels I have).
2015 - previous splitter, 6.5" rims (heaviest), rear wing was higher.

Results:
2017 - 1.67656063 m/sē
2016 - 1.60429622 m/sē
2015 - 1.65967621 m/sē

Between 2015 and 2017 there is a 1.2% increase in acceleration, there have been no changes to the engine!

The 2016 data whilst looks like an anomaly, looking at the graph shows that the acceleration at about 3835m starts to flatten whilst the TPS is at 100%. It would appear that this was the start of my 2017 fuel pressure issue...



With reference to the above anomaly in the 2016 data, the injector duty cycle dropped to almost zero around the same time. This could also have been the start of my fuel pressure issues. This issue, drop in injector duty cycle has not shown again since the fuel pressure issue has been fixed.


As purchased and modified over the years. #63c (black headlights) was the number for WTAC 2016, #98c was WTAC 2015, #c63 (blue headlights post WTAC 2016), #81c post WTAC 2017


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Old 11-11-2017, 02:14 AM   #1427
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10mm alumalite
.120" HDPE plastic sheet from Allstar
1/8" flat aluminum stock from HDM
some rivets
7 beers
1 SLB 2017 Unlimited RWD win


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Old 11-11-2017, 02:21 AM   #1428
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Mark, I know you get a million suggestions from well wishers on the forums, but the good idea's fairy is sometimes hard to ignore. And some of this is DIY aero, some is not.

"If I were you" since the car is now no longer road registered, I would look at going to open Class for WTAC if that is the event you are always working around. It solves your tire problems, it gives you a million more freedom in terms of rules and who cares where you come on the leader board. I am assuming your loyalty to the event would not create an issue for selection for the class, and the uniqueness of the entry. Then you can run 225/50/15 AO50's and be super happy and go all the fasts. (yes the height is not super good, but trust me you will be happy you did (or 215)).

Onto the aero, I wouldn't reinvent the wheel, pay cash dollars to ThePass and grab that wing when the dollar is good, as Ryan said it solves 3 issues at once, and it is proven.

Aero 2 - I am getting a new exhaust done over xmas, and with this a diffuser will be made, yes probably not as good as a CFD designed one, but if you are in no rush hold off on that as if it works I will have a mould.

Aero 3 - I also have side skirts, probably a picture somewhere back in this forum of them, and hence I have moulds, however untested at this stage.
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Old 11-11-2017, 03:04 AM   #1429
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Tim many thanks for the reply! Over the next few months will be thinking about what to do in 2018.

Working with Kyle Forster at the moment to reduce drag and some other ideas, so will see what comes from this.

Off topic pic but I saw the perfect clubsprint car today an Exige with an Evora supercharged V6 engine fitted!
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Old 11-11-2017, 10:01 AM   #1430
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Quote:
Originally Posted by emilio700 View Post
10mm alumalite
.120" HDPE plastic sheet from Allstar
1/8" flat aluminum stock from HDM
some rivets
7 beers
1 SLB 2017 Unlimited RWD win
Congrats guys.

Any shots of how it's mounted on the bottom?

Last edited by Mobius; 11-11-2017 at 11:37 AM.
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Old 11-11-2017, 10:26 AM   #1431
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Congrats guys.

Any shots of how it's mounted on the bottom?
Not if you are going to quote the pictures
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Old 11-14-2017, 11:53 AM   #1432
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Would anyone be interested in a full front to back under body for an na. I have a rough design now in getting finalized for my 90. The front is similar to lrb then all the way back into a diffuser. If there is enough interest i will sent it to my local laser cutting friend that does all our work stuff for a quote.
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Old 11-14-2017, 11:57 AM   #1433
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In for pics.
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Old 11-14-2017, 11:58 AM   #1434
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In for pics.
Should have it looking good by the end of the week maybe early next week and will post up a render
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Old 11-14-2017, 01:46 PM   #1435
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Not if you are going to quote the pictures
Ah, the double super secret secrets.

I'm still trying to figure out where the ideas for the front splitter shape came from....

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Old 11-14-2017, 02:56 PM   #1436
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Thought this thread can use this pic.
The front of the hood is roughly 4" lower in the bottom pic than it is in the top one -



In terms of cost / hours / etc... be afraid, be very afraid.
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