scottiescottiescottie

and just to be fair those above that push stuff they do also need to fes up after all if their good enough to give advice they to can give name and what business they have and add some credit to their input. Just to add some clarity... If its directed at me then I am a sheet metal engineer by trade and have exclusively owned and worked on subarus, I am an enthusiast. If not who are you talking about here that you feel needs to prove themselves before they write anything on this forum? The whole deal with a forum like this is if you see something as an expert that you disagree with you should say so and state why. I know I would appreciate that kind of input. Alternatively club sub could start an exclusive -locked to me and the masses- thread for those that are trusted sources when it comes to information and input.

Do it! Keen as to see them mate...

Thanks Blair I think that the devilsown stage 1 system is the one I will get... Just now trying to sort the best way of getting it.

That sounds like what I keep hearing about it, so what product/system do you run?

Ci have done a lot of reading about them and can't see the draw backs really? A little extra cost of running it, the regular filling of it but otherwise it seems to good to be real! What are the drawbacks from someone that uses it? Thanks for the info so far mate.

Are you in chch? What brand did you get/model ect, application? You know others that use it round these forums?

Can anyone point me in the right direction for a good distributer/product? Cheers! PS car should be running next week. Only took me 8 years to build... No biggy!

Lol!!! Lol 3! Just curious really! Plus that extra 1HP sounds pretty exciting ;~)

Name: Scottie Car 1: 1996 Two door impress Car 2: 2005 LGT Email: [email protected] Only a matter of weeks now and my 8 year build will be on the road! Peaking!

HAHAHA^ Yea Its a light car at 1080kg and I wont be running slicks. Is it unheard of? I would be real interested in giving it a crack if anyone else has done it?

As per the title above, I getting to the end of my build for a club day car, its a 96 wrx coupe. I am interested in ditching the power steering and wonder if anyone has any experience with this? Thanks.

Hey does anyone here know where else in NZ to find good quality bar and plate cores? I went to heat exchange services in CHCH but I was not really impressed with the build quality or fin density. Any suggestions of core specialists? thanks!

I think this is where most people get waylaid. There is more than enough turbulence in the maze of internal fins to promote heat transfer.

[quote name='soopersubaru said: looks like a good result for your considerable attention to detail and your efforts. I'm still a water cooler fan though ...the over taking 30 sec temperature increase is still more than the soopercooler. and with water spray coming on at 20 psi the soopercooler IAT does not get above 58 deg....despite the turbo providing air at 145 deg c. Not bagging your cooler scott.........Your system is lighter and provides a top result and is obviously far better than the front mount system for the "road car"....TOP STUFF and well done!! The temp increase on this core in the first 30 seconds is 1 degree. What is yours? that is impressive if its 0-1 Good work with your cooler info mate, I would think though by the internally restrictive design of the standard intercooler (that you have modified to work with your setup) that the pressure drop on your unit will be higher and not flow as well. I understand that a lower temp output is>flow/pressure drop but still the fact remains. I will hopefully get some comparable data soon to see if my core is measurably different/better than the std core. Once I have my spray setup going I will also do some data logging to compare. It will be interesting to know if the sprayer will make a big or small difference to output temps... Thanks for the comments mate

Thanks mate, At the moment I will just see how these two I have built will sell before making any steps in another direction ie developing them for anything other than 03-08 GT legacy's. The "oven test" idea is not a bad one. I will be testing underbonnet temps at differing locations especially under the core in the coming months so should have some conclusive data on that issue soon enough. On that though radiant heat from near the turbo seems to me to be the biggest issue so will be heat shielding my 3 intercooler units once the temp sensor test shows me where I need it. thanks for the feedback

For the next test I used the same bench setup as previous (hair dryer at 91 degrees) but then removed the covers and added a ducted cooling fan blowing an ambient temp of 18 degrees. time my core STD core 0.30 -19 -22 1.00 -20 -26 1.30 -24 -30 2.00 -28 -34 2.30 -31 -37 3.00 -35 -39 3.30 -38 -40 4.00 -40 -40 4.30 -42 -41 5.00 -43 -41 5.30 -44 -42 6.00 -44 -42 6.30 -45 -43 7.00 -45 -43 8- -45 -43 9- -45 -43 10- -45 -43 Soooooooooooooooooooooooooooooooo... As you can see the smaller STD core transfers/sheds the heat well and even ends up at a constant 2 degrees cooler than my bigger core... What does this equate to in real life situations? if you have your foot to the floor without lifting off for 4 minutes? my core will give cooler air. If you are boosting on WOT for over 4 mins the stock core will provide 2 degrees of cooler air BUT I believe it will do it with a higher pressure drop (TESTING TO COME POST CHRISTMAS) After a load of research and now some testing under my belt I really see this intercooler core upgrade as only one part of the cooling package. I am in the throws of designing and assembling a spray system and SUBTLY larger intake scoop for the 03-08 LGT. Japanese manufacturers have made many scoops for this car and the best ones are only 7mm higher than the std scoop. The scoop doesnt look -WRX try hard- on our cars and yet it provides and increase of 15-20% extra air flow over the core (very desirable) On top of this though a good atomized spray setup with a 10 liter tank will provide the extra edge to make this a very competitive cooling alternative instead of just going for the infamous "big front mount" as it will be keeping the snappy turbo response. Also its subtle enough that it shouldn't interfere with your insurance unlike the big front donk. I will also be heat shielding the hot side of the alloy cooler to reduce radiant heat transfer from the close by turbo. The stock core is aided by end tanks that are made of plastic here (they also pop open if you push the boost past 20psi) So the three tiered upgraded to cooling my intake is this. -bigger and free flowing core -High quality atomized water spray setup -15% more air coming in via a subtle but 7mm higher scoop For now the car is running sweet, I hope to do a pressure drop comparison by end of January but after that I will be fitting the new scoop and spray system. Ill post results as soon as I have finished the tests ;D thanks for watching some DIY...

So I did a bench comparison with the standard core using a hair dryer and some cardboard For the first (and IMO one of the most important) test... How well does it act as a Heatsink? The slower to heat soak was a fore gone conclusion simply judging by the much larger mass of alloy. but still interesting to note how much slower. Notes... -I used K type thermocouples for the testing and they were very reliable for me. -I sealed off the cores to limit any external heat transfer ... -Both cores were cleaned and internally spotless. -Heat input was at a tested constant of 91 degrees and the ambient temp at a constant 24. in intervals of 30 seconds... My core on the left STD core on the right... Time My core... STD core 0.00 -24 C -24 C 0.30 -26 C -31 C 1.00 -28 C -37 C 1.30 -33 C -49 C (12 C leap on the stock core!) 2.00 -40 C -64 C (My core jumps 7 C now, stock jumps a whopper 15C) 2.30 -48 C -77 C 3.00 -56 C -88 C (Heat soak reached on STD core) 3.30 -63 C 1st hair dryer dies Predicting that my core would have heat soaked at around 6mins So as you can see the STD core heat soaks quickly... IMO The most interesting and helpful result is the first 30 seconds as this is the spot we all use when overtaking/giving our cars heaps! It is worth noting that the temp only JUST changed to 2 C as it hit the 30 second spot. Very helpful real world info here... In real life? At a highway cruise you hit WOT as you pass a line of cars and trucks (not that anyone would ever do that right?). The core can soak up a bucket load more heat before the temp even begins to move. Then as per real life road driving conditions you have plenty of time to cool off between WOT moments. The big question now... How does it stack up as a heat EXCHANGER? We assumed that it would act well as a heat sink since it had so much more alloy than the STD core. So can we also assume that it will be slower/more difficult to cool? Can it shed the heat as quickly as the stock core even though it has so much more material to cool down? Ill save you the pain, the short answer is no... BUT ONLY JUST!!! More info and solution in the next post...

Thanks mate Anywho here it is! after 8 hours of wielding, drilling, linishing, pressing, forming, sanding, testing, fitting, flowing... I am now -smiling ;D first the pics then the test results... ill split it into two posts to make it a little easier to digest. Here is one of the internal wields... Now here are my controversial inlet and outlet "guides/flow enhancers/ect" The idea behind them is to reduce the pressure drop, creating a very high flowing core for its size... My custom-wood jig in action! still makes me laugh looking at it... this little beauty worked a charm, the final fitment was PERFECT flip side WIP shot... Finished product comparison to original... Used hank bushes pressed into the 3mm alloy flange for the BOV mount. THANKS TO BLACKS FASTENERS FOR THE FREEBE ;D Mounted on the car. Like I said the fitment was perfect. popped into place and sealed up just like a factory item. Glad I spent the time making the jig the stunner she is Engine bay... Close up... Test results in the next post...

Its coming together alright now and will be finished tomorrow :~) I plan to do some extensive testing post Christmas but simple tests as soon as its finished. Will upload pics in the next two days.

Well its taking ALOT longer than I wanted but I have had a morning to get something done. So today the parts have gone from this... To this... I have made the eliptical leading edges and pressed some trailing surfaces but the trailing tip is still very round unfortunately as you can see below... Will be getting into the wielding as soon as possible as I hope to use this cooler 1st of Jan 2012...

Hows the dev going mate? mine stalled a bit but back on track now hopefully will have a unit workin by new years...

Been a long time sorry but been busy as always with life and children... Plasticard patterns are being transferred to sheet alloy and should be done the week before Christmas. Will attempt to have one assembled and weilded before new years. Pics to come

Just had a good look on the link website. Looks good but what about a gauge?

Thanks mate, have you got a link or web store with images and more info? Or should I just call Link?

Can anyone point me in the right direction for an affordable air temp gauge that takes quite fast readings? I am developing an intercooler http://www.clubsub.org.nz/forum/index.php/topic,25557.msg355922.html#msg355922 To measure the gains of my cooler I want to be able to measure temp drop as well as pressure drop.