intercooler sorted

Discussion pertaining to positive pressure E28s.
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red535t
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Joined: Jun 03, 2007 4:53 PM
Location: auckland,new zealand

intercooler sorted

Post by red535t »

took most of saturday,some bleeding fingers and a 2 trips to the local hardware shop but its in and more importantly the pump works. :D
pump pushes 13L per minute

http://s202.photobucket.com/albums/aa12 ... c001-1.jpg

Thought i'd be clever and use some baraided under bench household hose fittings.looks good

now we all know more flow=more heat reduction in the intake charge.

Question is; would the narrowing of the fitting before/after the intercooler have a noticable difference in water flow?

i didnt bother with that poll Todd,we all blow on our trumpet when we 'think' we out-do the next guy. ;)

'should' have the ecu sorted in the next 3 weeks,then I will blowing my trumpet too.or climb back in my hole if it all ends in tears. :lol:

cheers from down under.
M635CSi
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Post by M635CSi »

Congratulations, looks interesting! What brand of intercooler is that?
red535t
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Location: auckland,new zealand

Post by red535t »

branding? no idea.bought it from silicone intakes.
affordable-yes
rob535i
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Location: Houston

Post by rob535i »

What are your plans for the MAF? the placement..
red535t
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Location: auckland,new zealand

Post by red535t »

ditching all stock ecu and related parts and intalling a EMS 8860 to run the engine..
down here in NZ there dont seam to be many guys game to
fool around with using stock and additional parts.
plus i got this far-why not spend that little more to insure that the AFR is right-all the time.cheers
SilverBullet
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Location: brisbane, australia

Post by SilverBullet »

Did u modify that one caz i cant find it on there site. It looks like a great idea! Also interested in how u mounted it. Keep us posted on your build!
red535t
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Location: auckland,new zealand

Post by red535t »

yeah,put the band-saw through it on both intakes,welded plates on the cut line.then rebored it to fit the oringinal 3" intake stubbs.
mounting was the easy bit;used a
e34 rocker cover. utilized the 3 threaded stubbs.placed a plate of ali on it and bent/shaped it to clear the HT leads and bolted,with spacers, the intercooler to it.
should work well as the plate 'should' shield most of the heat from the exchaust.
marty
Rich Euro M5
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Post by Rich Euro M5 »

now we all know more flow=more heat reduction in the intake charge.
This statement isn't exactly true. Intuitively , it makes sense, but in actual practice it only holds true up to a certain flow rate. For efficient heat transfer to occur, the coolant in the primary side has to be in contact with the heat source to absorb the heat. This has been my experience optimizing the efficiency of the cryo-refrigeration systems used on super conducting magnets. This system utilizes a water/water heat exchanger, the primary is feed with building chilled water at ~ 45F, flowing at about 3 GPM. The secondary side has a 25 liter water tank filled with DI water which flows through the coldhead compressor of the cryo-refrigerator.

To restrict flow you could use a simple ball valve on either the input or output of the primary side of the intercooler. One method to determine the optimal primary flowrate would be to monitor the temperature of the charge air at the output of the secondary side of the intercooler.

Rich
red535t
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Post by red535t »

cheers for your input Rich.
have to admit,it took 3 takes on reading your info to get the jest of the big words. :laugh:

but i can see were your going with that thought.
will do some crude testing after its all up and running.

that or install a ice maker in the boot and fitting one of those ice bucket-intercooler setups to keep single digit temperture intake charge :rofl:

marty
Jimmie G
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Post by Jimmie G »

Only down side is it makes the valve adjustment a little more envolved but for more power its a great trade off!

Jimmie
Boru
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Post by Boru »

Jimmie G wrote:Only down side is it makes the valve adjustment a little more envolved but for more power its a great trade off!

Jimmie
If there's enough slack in the water lines then all you need to do is loosen a couple of hose clamps, perhaps a bracket and the whole thing moves out of the way.
chrism
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Post by chrism »

Sweet seat covers ;)
red535t
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Post by red535t »

tell u what;
when i'm done recovering the original seats-
I'll put them up for offers on the 4 sale section :rofl:
true 80's classics
Nebraska_e28
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Post by Nebraska_e28 »

Sharp ride, looks like your hard efforts are paying off! ;)
Is that radiator out of an e34? If so, what model & why did you choose this? Thanks
red535t
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Post by red535t »

radiator is from an e36.
thought i'd try sumthing different and tidy-up as much stuff as possible.original was rather rotted so was down on capacity anyway.problem now is the new cooler is
20% narrower accross the front.
i'm hoping that it being ali and all the fins being present, that it will do the job.
will be keeping an eye on the temp needle really close.
wanted to fit e34/e32 unit but it was 15mm too wide.
same with e23 core.
Maddog
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Post by Maddog »

So you've switched to a smaller radiator? it looks clean without the expansion tank being remotely mounted, but I wish you luck in your engine cooling adventure.
Nebraska_e28
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Post by Nebraska_e28 »

Maddog wrote:So you've switched to a smaller radiator? it looks clean without the expansion tank being remotely mounted, but I wish you luck in your engine cooling adventure.
You'll definitely want to run lower temp sensors for the hi/low electric fan. Perhaps if he was able to mate up the old fan shroud, or even a the original one from the e36 this would be effective enough? Just a thought though.
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