Ralph Wiggum Moar Powar Babeh Lifetime Members 19,323 Member For: 19y 1m 21d Gender: Male Location: Perth Posted 15/02/14 10:52 AM Share Posted 15/02/14 10:52 AM Certainly goes both ways. That's why I wanna see multiple back to back runs I guess it's pretty hard given the time it takes to swap coolers overWhat do we all want from our brakes? Maximum kinetic to heat conversion capacity. Heat comes from friction, it's absorbed by the heavy steel discs and the dissipated. Turbo squeezes the air, generates heat, (for a street driven) car do you want a large ally chunk that can absorb that heat energy and disapate it, or do you want a thinner chunk of ally that comes saturated with heat prematurely and then returns it to the charge air? I'm not saying bar and plate is better than tube and fin, just there's a great deal more too it than just construction type. I personally have changed from a nizpro tube and fine to a nizpro bar and plate with no other mods than cooler and the ability to absorb heater was much higher(I have data logs that show the reduced increase in it after wot runs.) , but the mass of the cooler was higher so it really cancelled out the construction type. 2 Link to comment Share on other sites More sharing options...
Kroozin Menace Donating Members 1,990 Member For: 13y 6m 23d Gender: Male Location: Sydney Posted 15/02/14 10:54 AM Share Posted 15/02/14 10:54 AM My 1000hp plaz was seeing 46+ on a 25deg day pulling 4th gear (manual) on the dyno at 19 down to 17psi.Fitted some water jets for now until I can grab a PW3 1 Link to comment Share on other sites More sharing options...
sexual harrassment panda I see a red door and I want to paint it black Donating Members 5,919 Member For: 15y 19d Gender: Male Location: Far north queensland Posted 15/02/14 11:03 AM Share Posted 15/02/14 11:03 AM Paint it blackCheers 4 Link to comment Share on other sites More sharing options...
Ralph Wiggum Moar Powar Babeh Lifetime Members 19,323 Member For: 19y 1m 21d Gender: Male Location: Perth Posted 15/02/14 11:07 AM Share Posted 15/02/14 11:07 AM Mine is. Link to comment Share on other sites More sharing options...
_Velocity_ Bronze Donating Members 2,768 Member For: 13y 6m 19d Gender: Male Location: Victoria Posted 15/02/14 11:07 AM Share Posted 15/02/14 11:07 AM For maximum heat dissipation you need to build one out of Titanium and paint the car pink. 1 Link to comment Share on other sites More sharing options...
Stigmata Donating Members 235 Member For: 11y 10m Gender: Male Posted 15/02/14 11:19 AM Share Posted 15/02/14 11:19 AM Been building custom intercoolers for 20+ years. A heavier core is not as efficient as a lighter core full stop. If you have the slightest grasp on thermal dynamics its not hard to see why. If you warm a piece of 10mm ally and a 2mm piece it is obvious that the thinner piece cools faster, same with cores. A heavy bar and plate will draw large amounts of thermal energy early in the piece due to the mass, good. However once this mass of aluminum has heat soaked it simply cannot transfer its thermal energy quick enough for efficient reduction of intake charge temps. Normally we see bar and plates fall over after several hard full power pulls on the rollers where a much lighter tube and fin is way more consistant run after run. I am yet to ever see any bar and plate ever beat a good light weight tube n fin core, ever. Once I see it with my own eyes im converted as unless its lighter with a higher internal surface area it goes against the laws of thermal dynamics. Same principle goes for heavy cast tanksKind regards Jon 4 Link to comment Share on other sites More sharing options...
Ralph Wiggum Moar Powar Babeh Lifetime Members 19,323 Member For: 19y 1m 21d Gender: Male Location: Perth Posted 15/02/14 11:37 AM Share Posted 15/02/14 11:37 AM Jon, what have you seen in applications where you don't have a dyno fan consistently providing large amount of ambient air to remove heat from the cooler? Ie stop/start traffic conditions? 1 Link to comment Share on other sites More sharing options...
Bizkets is Drunk? Too heavy needs boost Member 5,929 Member For: 11y 3m 7d Gender: Male Location: Adelaide Posted 15/02/14 11:45 AM Share Posted 15/02/14 11:45 AM :D 2 Link to comment Share on other sites More sharing options...
Stigmata Donating Members 235 Member For: 11y 10m Gender: Male Posted 15/02/14 11:52 AM Share Posted 15/02/14 11:52 AM Jon, what have you seen in applications where you don't have a dyno fan consistently providing large amount of ambient air to remove heat from the cooler? Ie stop/start traffic conditions?We have tested on road conditions, off road conditions, high traffic, high loads on road as well as dyno. Front mounted systems, topmounted systems, fan forced topmounted systems etc etc. Still yet to see a bar n plate have a better outcome. Also did fair bit of RnD with PWR with their new wind tunnel used for F1. They can run varible boost and varible intake charge and ambient temps. Quite a massive techy piece of equipment. Think it was concieved for RedBulls F1 intercooler requirements for the new Turbocharger regs of F1.Btw, PWR sell a good intercooler temp gauge for monitering before and after cooler temps. Made by Davtronics in USA. A very handy tool for above analysisKind regards Jon 1 Link to comment Share on other sites More sharing options...
LU82 Bronze Donating Members 569 Member For: 11y 9m 19d Posted 15/02/14 12:04 PM Share Posted 15/02/14 12:04 PM that's interesting, I wonder why a lot of big powered r35 gtr's run bar and plate coolers. Link to comment Share on other sites More sharing options...
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