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I will be dyno/tuning my car to 22 psi very soon. I know that the W/A intercooler will get heat soaked and limit and or effect my tuning up to 22 psi.

I currently have only one heat exchanger but plan on moving the battery out of the engine compartment and installing two more in its place plus some ducting and a box to shield them. This will not happen before the dyno tuning though.

Here is my idea. I would like to tap into the W/A fluid system and attach additional hoses and a length off copper tubing that has been coiled around about 5-8 times. I would the submerge this coil in a bucket of ice and water.

Here is a picture of my heat exchanger and plumbing -

<img src="http://e28-535i.com/upload/finass2.JPG">

<img src="http://e28-535i.com/upload/finass1.JPG">

I figure that the heat soak would then be a non issue.

What are your thoughts?

What about moving the battery out, placing a 1 gal. vertical fuel cell there and use it as the reserviour..you could keep it topped off with ice as well as give the system more coolant capacity....just a thought for ya.

jon volk wrote:What about moving the battery out, placing a 1 gal. vertical fuel cell there and use it as the reserviour..you could keep it topped off with ice as well as give the system more coolant capacity....just a thought for ya.

Another good idea.

That certainly sounds like it would work fine. Might I suggest using dry break hydraulic quick disconnect fittings (with enough flow capacity) to speed the adaptation when you need the extra cooling capacity. To save some expense and modifications could you just spray water on the heat exchanger while you are tuning?

We used to install "cool cans" which is the same idea for the fuel lines on the drag and autocross cars we built back in central Florida.

Duke M535ti wrote: I currently have only one heat exchanger but plan on moving the battery out of the engine compartment and installing two more in its place plus some ducting and a box to shield them. This will not happen before the dyno tuning though.

What are your thoughts?

Finish the installation of the the basic components of your turbo kit prior to maxing it out on the dyno.

Don't waste your time with band aids. All you need is the 2nd heat exchanger and a bag of ice.

I have never had an intercooler lose any efficiency on the dyno. My best runs are always the very last run. As was yours when we dynoed in Columbus.

If you put a copper coil in an ice bath, you need something to stir the water/ice. (old homebrew knowledge)

Duke,

every time I see this picture it makes me cringe. That piece of unistrut you have holding your cooling bits, just doesn't look like it belongs. We use this stuff to hang transformers in interstitial space (between floors) at work.

For what you guys are paying TCD, this bracket should be a billet piece with the TCD logo across the top of it.

Just my $.02.

Rich

Rich Euro M5 wrote: Duke,

every time I see this picture it makes me cringe. That piece of unistrut you have holding your cooling bits, just doesn't look like it belongs. We use this stuff to hang transformers in interstitial space (between floors) at work.

For what you guys are paying TCD, this bracket should be a billet piece with the TCD logo across the top of it.

Just my $.02.

Rich

TCD did not intend to have a HE mounted in that location. Both of the HE are supposed to be mounted above the battery. I am kinda proud of what I did with the parts I got from MMCarr.

Don't worry, it is completely hidden by the plastic cover.

Wait until you see when I mount two large HE in the current battery location, complete with ducting from the soon to be removed fog lights and a box to channel air thru them.
I am going to channel the air from the left fog light hole into the intake CAB.

Duke M535ti wrote:

Rich Euro M5 wrote: Duke,

every time I see this picture it makes me cringe. That piece of unistrut you have holding your cooling bits, just doesn't look like it belongs. We use this stuff to hang transformers in interstitial space (between floors) at work.

For what you guys are paying TCD, this bracket should be a billet piece with the TCD logo across the top of it.

Just my $.02.

Rich

TCD did not intend to have a HE mounted in that location. Both of the HE are suposed to be mounted above the battery. I am kinda proud of what I did with the parts I got from MMCarr.

Don't worry, it is completely hidden by the plastic cover.

Wait until you see when I mount two large HE in the current battery location, complete with ducting from the soon to be removed fog lights and a box to channel air thru them.
I am going to channel the air from the left fog light hole into the intake CAB.

Unistrut has a million uses Hey, it's already drilled full of holes so it looks nice and racy. Duke could have bought some of the stainless steel stuff and polished it up, I suppose.

Rich Euro M5 wrote:


For what you guys are paying TCD, this bracket should be a billet piece with the TCD logo across the top of it.

Just my $.02.

Rich

I guess the kit should come with a blow job too?

We do not supply brackets for the heat exchangers. Every chassis is different. Every car is equipped differently.

I guess the kit should come with a blow job too?

That's what it does doesn't it, provide a blow job ?? Or does it just suck harder ??

We do not supply brackets for the heat exchangers. Every chassis is different. Every car is equipped differently.

I don't agree 100% with this statement. I would think most of the E28s being equipped with a TCD system will be US/NA E28s therefore you could design a standardized bracket set to support the heat exchangers. It's the one off installations like Duke's M535i that would require custom brackets.

Rich

Don't worry, it is completely hidden by the plastic cover.

Duke,

I figured it would be covered by the plastic radiator cover shroud thingy. It's just that your M535i just shouts over engineered and the unistrut just looks like it was an affterthought.

Once you finalize everything you could have a nice set of brackets made up using polished 300 grade stainless, aluminum or some of that ///M unobtanium.

Rich

Rich Euro M5 wrote: I don't agree 100% with this statement. I would think most of the E28s being equipped with a TCD system will be US/NA E28s therefore you could design a standardized bracket set to support the heat exchangers. It's the one off installations like Duke's M535i that would require custom brackets.

Rich

You thought wrong.

Todd

Duke M535ti wrote: Both of the HE are supposed to be mounted above the battery.

No they are not. That is a less than ideal placement. They should be mounted outside of the engine in a position that receives clean air.

I like to remove the fog lights and mount them there.

You have limited options with the fancy MTEC kit.