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 12307 Posts Member #: 565 Carlos Fandango Burnham-on-Crouch, Essex |
31st Aug, 2011 at 09:06:44pm
Expand please,
On 31st Aug, 2011 Grahamxx said:
All intercoolers have a pressure drop, if they didn't then they're not working.. On 28th Aug, 2011 Kean said:
At the risk of being sigged... Joe, do you have a photo of your tool? http://www.turbominis.co.uk/forums/index.p...9064&lastpost=1 https://joe1977.imgbb.com/ |
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 2909 Posts Member #: 83 Post Whore Glasgow, Scotland |
31st Aug, 2011 at 09:28:59pm
On 31st Aug, 2011 Joe C said:
Expand please, On 31st Aug, 2011 Grahamxx said: All intercoolers have a pressure drop, if they didn't then they're not working.. simple if theres no pressure drop then the air is not interacting with the surface of the intercooler, and therefore not being cooled. however if you fit a core so huge the pressure drop is neglegable, there will still be awesome cooling. but the core wont fit under the bonnet lol. turbo 16v k-series 11.9@118.9 :)
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4018 Posts Member #: 1757 Back to Fucking Tool status Swindon |
31st Aug, 2011 at 09:51:59pm
What ic do you use dennis? And is it you on 16v mini forum with a vts lump in the front of a mini? Drives
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54 Posts Member #: 8588 Advanced Member Yeovil |
31st Aug, 2011 at 10:40:34pm
Surface area is more important than thickness, plus the right end tank design is very critical Graham |
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 6752 Posts Member #: 828 Post Whore uranus |
1st Sep, 2011 at 07:51:34am
On 31st Aug, 2011 Grahamxx said:
Surface area is more important than thickness, plus the right end tank design is very critical zacto graham , i tested my cooler on the flow bench ,it had 10% more flow one way than the other . also talking about size is like talking about how a colour smells .. theres frontal area ,ic thickness ,and flowpath count ,and flow path area ..you can have a chinese cooler with a huge frontal area ,but all the paths run lengthwise ,which means the flow area may be small . you can get a cooler that has the same shape as a ch cooler but the paths run the short way top to bottom ,so the flow area is about 500 % bigger ,and no pressure drop ,but maybe the air is not in contact with the core for long enough to work ...then again ,as we all know , the greater the air path area ,the slower the flow ,so the slower the flow the more time in contact with the core ...and so on ,,, then also theres the thickness dimension,,, the piece of ic that is 2 to 3 inches back in the core is being blasted with warmed air from the front half ,so its effectiveness goes down even if its eff stays the same ,the cooling medium is now warmer . another component is ,is all the cooling air going through the ic ,or washing around the outside ? anything more than 1 to 2 psi drop through an ic would be too much ,(in my rarely expressed ever so humble op.  )
Medusa + injection = too much torque for the dyno ..https://youtu.be/qg5o0_tJxYM |
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12307 Posts Member #: 565 Carlos Fandango Burnham-on-Crouch, Essex |
1st Sep, 2011 at 08:30:52am
I agree with robert, much more than a cople of psi and your fighting the law of diminished returns lol
On 28th Aug, 2011 Kean said:
At the risk of being sigged... Joe, do you have a photo of your tool? http://www.turbominis.co.uk/forums/index.p...9064&lastpost=1 https://joe1977.imgbb.com/ |
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 3329 Posts Member #: 184 Senior Member Melton Mowbray, Pie Country |
1st Sep, 2011 at 12:50:54pm
On 31st Aug, 2011 evolotion said:
On 31st Aug, 2011 Joe C said:
Expand please, On 31st Aug, 2011 Grahamxx said: All intercoolers have a pressure drop, if they didn't then they're not working.. simple if theres no pressure drop then the air is not interacting with the surface of the intercooler, and therefore not being cooled. however if you fit a core so huge the pressure drop is neglegable, there will still be awesome cooling. but the core wont fit under the bonnet lol. http://www.twin-turbo.co.uk
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2909 Posts Member #: 83 Post Whore Glasgow, Scotland |
1st Sep, 2011 at 06:27:16pm
On 31st Aug, 2011 Paul R said:
What ic do you use dennis? And is it you on 16v mini forum with a vts lump in the front of a mini? nope mate thats just a car i have been building, but not mine. mines is the 1.4 16v turbo rover k-series. and intercooler is a fiat coupe turbo, the biggest OE cooler i could fit :) the wee point i was making earlier was that for the air passing through the cooler to be cooled it must come into contact wih the internal sirface area of the cooler, this will always slow the air down, and therefore always induce a pressure drop however, this is a massive complicated compromise. if core dimentions are limited, then you need to balance flow Vs coolng and reach the best compromise. but as robert has said anything more than a few psi is unnaceptable, and im sure i mentioned in the other thread i have seen massive pressure drops across poorely spec'd coolers turbo 16v k-series 11.9@118.9 :)
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 861 Posts Member #: 951 Post Whore Bromsgrove |
5th Sep, 2011 at 11:44:49am
Just come off the RR and saw 17/18 psi at the manifold and 22 psi at the compressor.this was at 6000 rpm.The ic out temp stayed around 40C.This suggests a big variation in 'chinese' coolers. 'Where does the engine go?' |
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 8604 Posts Member #: 573 Formerly Axel Podland |
5th Sep, 2011 at 11:47:01am
On 5th Sep, 2011 steve1275 said:
Just come off the RR and saw 17/18 psi at the manifold and 22 psi at the compressor.this was at 6000 rpm.The ic out temp stayed around 40C.This suggests a big variation in 'chinese' coolers. What size and configuration is your cooler? Saul Bellow - "A great deal of intelligence can be invested in ignorance when the need for illusion is deep."
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 10022 Posts Member #: 1456 Mongo Barnsley, South Flatcapshire |
5th Sep, 2011 at 11:49:07am
4psi drop is pretty good I reckon. If something is worth doing, it's worth doing half of. |
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861 Posts Member #: 951 Post Whore Bromsgrove |
5th Sep, 2011 at 11:51:09am
Similar in appearance to the Forge type 104 ie straight ends,540x140x65.Mounted across the car in front of the radiator. 'Where does the engine go?' |
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861 Posts Member #: 951 Post Whore Bromsgrove |
5th Sep, 2011 at 11:55:17am
See pic 'Where does the engine go?' |
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861 Posts Member #: 951 Post Whore Bromsgrove |
5th Sep, 2011 at 11:56:32am
Or not!connection playing up. 'Where does the engine go?' |
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 9258 Posts Member #: 123 Post Whore Betwix Harrogate and York |
5th Sep, 2011 at 12:14:21pm
An internal pic would be most useful. Fastest 998 mini in the world? 13.05 1/4 mile 106mph
On 2nd Jan, 2013 fastcarl said:
the design shows a distinct lack of imagination, talk about starting off with a clean sheet of paper, then not bothering to fucking draw on it,lol On 20th Apr, 2012 Paul S said:
I'm mainly concerned about swirl in the runners caused by the tangential entry. |
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861 Posts Member #: 951 Post Whore Bromsgrove |
5th Sep, 2011 at 05:22:54pm
Best I could do.On the 3rd pic I shone a light from the other end. 'Where does the engine go?' |
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 673 Posts Member #: 1395 Post Whore chepstow |
15th Sep, 2011 at 07:55:08am
The metal used on a chinese one is also quite thick, making the pathways for the air smaller/less space for fins.
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673 Posts Member #: 1395 Post Whore chepstow |
23rd Sep, 2011 at 08:53:52pm
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 3756 Posts Member #: 1709 I like granny porn. LONDONSHIRE |
23rd Sep, 2011 at 10:48:25pm
mine's not far off that steve, keeps shit cool. bingo. On 2nd Oct, 2009 Vegard said:
On 1st Oct, 2009 Jimster said:
I bet my first wank came quicker than your first mini turbo These new modern turbos with their quick spool up time, would make the competition harder. On 15th Aug, 2011 robert said:
phew!!! thank you brett for smashing in my back doors .( not something i imagined writing... EVER) |
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 3341 Posts Member #: 218 Post Whore Bingley, West Yorkshire |
25th Sep, 2011 at 04:31:49pm
On 31st Aug, 2011 Paul R said:
Pressure drop = run more boost  Thats exactly what i did! im running a cheap chinese ebay intercooler :) Previous Engine: 1040cc Morespeed engine, 1275 turbo head T2 Turbo Mirage Manifolds Megajolt
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