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 656 Posts Member #: 1917 AKA chargedzetec Milton Keynes |
15th Mar, 2014 at 08:42:50pm
On 14th Mar, 2014 Turbo Phil said:
Not a huge update as I have very little free time as usual, but I decided to actually put a few hours aside to do some bits for my own car for a change. Started making a plenum chamber. It was initially going to be aluminium, but due to the long runners I plan on using I decided it needed to be lighter, so I'm going with carbon fibre. First job was to make a foam mould. 
Then made an ally plate that will be wrapped inside as part of the mould. This will allow the runners to bolt to the back & be removable and the throttle body. 
This is how the two parts will fit together. 
This is FORD country, on a quiet day you can hear Vauxhalls rusting. |
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 4625 Posts Member #: 20 My sister is so fit I won't show anyone her picture Lake District |
15th Mar, 2014 at 11:22:16pm
On 15th Mar, 2014 Paul S said:
I've done several dynamic CFD runs of various plenum design. What you have done so far looks bang on. I wouldn't change a thing. Cheers Paul. 
On 15th Mar, 2014 steve w said:
That looks spot on, I assume the foam is quite firm?! Yes Steve it's high density stuff, a bit like polystyrene. Phil. |
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 1434 Posts Member #: 8466 Post Whore Mansfield |
16th Mar, 2014 at 08:58:25pm
Don't suppose you fancy making 2 plenums do you?
Class C 3rd Place Avon 2011 14.18 @101mph |
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656 Posts Member #: 1917 AKA chargedzetec Milton Keynes |
16th Mar, 2014 at 09:07:57pm
On 30th Jan, 2011 Turbo Phil said:
Do you have a spare I could take a mould off of?! This is FORD country, on a quiet day you can hear Vauxhalls rusting. |
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4625 Posts Member #: 20 My sister is so fit I won't show anyone her picture Lake District |
16th Mar, 2014 at 09:11:21pm
On 16th Mar, 2014 alaskanow0 said:
Don't suppose you fancy making 2 plenums do you? I'm considering swapping to a single throttle body with extended runners in the clubman and repositioning a larger intercooler. I struggle with low vacuum, using ITB's. Fast throttle openings are a bit of a problem from idle. I also fancy full closed loop Idle control valve. What throttle body / size you using Phil? The foam mould will be lost when the plenum is made as it gets dissolved after it's been wrapped in the carbon. I can't remember to be honest what car the throttle body was from, I think it was a Rover. I got it years ago from the scrappy. Its 57mm ID. Phil. |
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1434 Posts Member #: 8466 Post Whore Mansfield |
16th Mar, 2014 at 09:21:16pm
To be fair, I'm thinking about full alloy runners and plenum. I'm not fussed on weight.
Edited by alaskanow0 on 16th Mar, 2014. Class C 3rd Place Avon 2011 14.18 @101mph |
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4625 Posts Member #: 20 My sister is so fit I won't show anyone her picture Lake District |
16th Mar, 2014 at 09:47:56pm
On 16th Mar, 2014 alaskanow0 said:
To be fair, I'm thinking about full alloy runners and plenum. I'm not fussed on weight. What size ID trumpets are you using? Do they taper? 36mm ID at the bottom to match the runners/head ports. The trumpets taper, I cant remember offhand what angle. They're 50mm tall. I copied the dimensions from the Vizard book. The reason for wanting it to be light was not for overall weight reduction of the car, it was because I didn't want a big ally plenum & throttle body hanging on the end of some 150mm runners & only fastened to the head by a few M5 bolts. Phil. Edited by Turbo Phil on 16th Mar, 2014. |
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1434 Posts Member #: 8466 Post Whore Mansfield |
17th Mar, 2014 at 08:53:17am
That's a good point Phil. Any idea of the overall plenum volume? Class C 3rd Place Avon 2011 14.18 @101mph |
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4625 Posts Member #: 20 My sister is so fit I won't show anyone her picture Lake District |
17th Mar, 2014 at 10:33:50pm
I've not measured, but I'd guess somewhere between 1.5 to 2 litres.
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1391 Posts Member #: 1686 Post Whore Oxford |
27th Mar, 2014 at 12:45:43am
if you put lines across the top in 20mm segments. like the lines you've drawn on for runner position but all the way around.
On 19th Feb, 2011 Miniwilliams said:
OMG Robert that's a big one |
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4625 Posts Member #: 20 My sister is so fit I won't show anyone her picture Lake District |
27th Mar, 2014 at 08:11:03pm
On 27th Mar, 2014 Sam said:
if you put lines across the top in 20mm segments. like the lines you've drawn on for runner position but all the way around. Then take a photo from directly side on and one from on top and ill be able to model it and tell you the volume. if you include a drawing of your other components i can do a little bit of cfd if you want? That would be fantastic mate. I'll mark it up & post some pics. What other stuff do you need to know to do the CFD ? Phil. |
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1391 Posts Member #: 1686 Post Whore Oxford |
27th Mar, 2014 at 09:56:06pm
Cam profile might be useful. Then I can drive four pressure areas from a spreadsheet. I wont go into too much detail as you seem to be pretty set on that design. It should work out.
On 19th Feb, 2011 Miniwilliams said:
OMG Robert that's a big one |
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4625 Posts Member #: 20 My sister is so fit I won't show anyone her picture Lake District |
1st Apr, 2014 at 10:21:46pm
Thanks mate. What details do you need for the cam ? Lift, duration ?
Edited by Turbo Phil on 1st Apr, 2014. |
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4625 Posts Member #: 20 My sister is so fit I won't show anyone her picture Lake District |
1st Apr, 2014 at 10:21:48pm
Stupid I phone !
Edited by Turbo Phil on 1st Apr, 2014. |
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 4890 Posts Member #: 1775 Post Whore Chester |
1st Apr, 2014 at 10:30:04pm
Looking good phil I run a supercharger and I don't care the TB is on the wrong side.
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1391 Posts Member #: 1686 Post Whore Oxford |
1st Apr, 2014 at 10:58:47pm
duration on the inlet would be useful. Message it me if you want to keep it a bit stum. On 19th Feb, 2011 Miniwilliams said:
OMG Robert that's a big one |
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450 Posts Member #: 10396 Advanced Member Formerly mk2turbo Stoke-on-Trent |
2nd Apr, 2014 at 06:37:05am
Nice work Phil and daddy Phil |
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4625 Posts Member #: 20 My sister is so fit I won't show anyone her picture Lake District |
8th Apr, 2014 at 10:30:22pm
Edited by Turbo Phil on 8th Apr, 2014. |
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 7265 Posts Member #: 1268 The Boom Boom speaker Police! Essex |
9th Apr, 2014 at 06:34:58am
Talented family. That looks great. In the 13's at last!.. Just |
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 690 Posts Member #: 9962 Post Whore |
9th Apr, 2014 at 06:54:18am
Looking good, nice machining / fab work,
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1391 Posts Member #: 1686 Post Whore Oxford |
10th Apr, 2014 at 09:11:08pm
That will do just about, got a rough scale. Should at least highlight any issues.
On 19th Feb, 2011 Miniwilliams said:
OMG Robert that's a big one |
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4625 Posts Member #: 20 My sister is so fit I won't show anyone her picture Lake District |
11th Apr, 2014 at 04:40:18pm
No problem. I'm away until next week but will sort out some better pictures when I get back. Thanks .
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4625 Posts Member #: 20 My sister is so fit I won't show anyone her picture Lake District |
15th Apr, 2014 at 05:16:17pm
Edited by Turbo Phil on 15th Apr, 2014. |
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1391 Posts Member #: 1686 Post Whore Oxford |
8th May, 2014 at 11:44:57pm
On 19th Feb, 2011 Miniwilliams said:
OMG Robert that's a big one |
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656 Posts Member #: 1917 AKA chargedzetec Milton Keynes |
31st Jul, 2014 at 06:44:27pm
This is FORD country, on a quiet day you can hear Vauxhalls rusting. |
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