Going to fab up my own intercooler reservoir...
MBWorld Fanatic!
Joined: Jul 2004
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From: Diamond Bar & Anaheim, CA
2003 C-Class Sportcoupe
UPDATE: i ordered a new heat exchanger and a seperate reservoir today, it should be here before the weekend...i ordered a LFP Dual Pass Heat Exchanger for a 03 Cobra(same dimensions as ours but more efficient) and an upgraded 03 Cobra reservoir with a 4" Fuel Door so that you can pack it with ice! i ordered the one that is designed for the previous gen mustangs because it is a little shorter than the direct replacement one for the cobra...
i will let you know once i get it installed and working...and yes i will make sure i take some pics with this so that you can duplicate it.
i am also considering putting together a complete bolt-on kit that you could order directly from me with pictured instructions along with the heat exchanger, reservoir, hoses, fittings, clamps, etc...
i will let you know once i get it installed and working...and yes i will make sure i take some pics with this so that you can duplicate it.
i am also considering putting together a complete bolt-on kit that you could order directly from me with pictured instructions along with the heat exchanger, reservoir, hoses, fittings, clamps, etc...
Super Member
Joined: Oct 2005
Posts: 825
Likes: 3
2002 c32
UPDATE: i ordered a new heat exchanger and a seperate reservoir today, it should be here before the weekend...i ordered a LFP Dual Pass Heat Exchanger for a 03 Cobra(same dimensions as ours but more efficient) and an upgraded 03 Cobra reservoir with a 4" Fuel Door so that you can pack it with ice! i ordered the one that is designed for the previous gen mustangs because it is a little shorter than the direct replacement one for the cobra...
i will let you know once i get it installed and working...and yes i will make sure i take some pics with this so that you can duplicate it.
i am also considering putting together a complete bolt-on kit that you could order directly from me with pictured instructions along with the heat exchanger, reservoir, hoses, fittings, clamps, etc...
i will let you know once i get it installed and working...and yes i will make sure i take some pics with this so that you can duplicate it.
i am also considering putting together a complete bolt-on kit that you could order directly from me with pictured instructions along with the heat exchanger, reservoir, hoses, fittings, clamps, etc...
Super Member
Joined: Dec 2003
Posts: 815
Likes: 2
The Evosport mod accomplishes the goal of seperating the systems. I am working on a larger unit to hold more fluid, around 4 gallons. If you are worried about having a seperate windshield fluid resevoir, install a small pint or quart holding tank for this fluid that will fit with the bumper cavity. Not a problem to do and one I will do when my car is finally complete. Preliminary numbers are around 3,500 to 4,000 for a larger heat exchanger, newly designed aftercooler, plumbing and a new fluid resevoir. This has taken much longer than anticipated. I currently have two people interested. Please indicate how many of you are interested within this thread so I can determine if more than just one unit should be made. Currently the car does not exceed 135 degree F in AIT in 95+ ambient temps at 30 minute intervals.
Thread Starter
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Joined: Mar 2006
Posts: 2,517
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From: Ohio
...
The Evosport mod accomplishes the goal of seperating the systems. I am working on a larger unit to hold more fluid, around 4 gallons. If you are worried about having a seperate windshield fluid resevoir, install a small pint or quart holding tank for this fluid that will fit with the bumper cavity. Not a problem to do and one I will do when my car is finally complete. Preliminary numbers are around 3,500 to 4,000 for a larger heat exchanger, newly designed aftercooler, plumbing and a new fluid resevoir. This has taken much longer than anticipated. I currently have two people interested. Please indicate how many of you are interested within this thread so I can determine if more than just one unit should be made. Currently the car does not exceed 135 degree F in AIT in 95+ ambient temps at 30 minute intervals.
by the way guys, they just arrived today...i will take some pics and let you know when the install date will be...
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Super Member
Joined: Jan 2004
Posts: 538
Likes: 2
From: Silicon valley
Audi C7.5 S6
The Evosport mod accomplishes the goal of seperating the systems. I am working on a larger unit to hold more fluid, around 4 gallons. If you are worried about having a seperate windshield fluid resevoir, install a small pint or quart holding tank for this fluid that will fit with the bumper cavity. Not a problem to do and one I will do when my car is finally complete. Preliminary numbers are around 3,500 to 4,000 for a larger heat exchanger, newly designed aftercooler, plumbing and a new fluid resevoir. This has taken much longer than anticipated. I currently have two people interested. Please indicate how many of you are interested within this thread so I can determine if more than just one unit should be made. Currently the car does not exceed 135 degree F in AIT in 95+ ambient temps at 30 minute intervals.
MBWorld Fanatic!
Joined: Nov 2001
Posts: 1,289
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From: OC
C32
So has anyone done any testing to prove that all this work is going to produce any more horsepower. Has anyone dyno'd the car with stock intercooler and then say run the pump suction line into a bucket of ice water on the dyno to see if it makes any horsepower. Seems like an easy test to at least determine whether all this work and dollars are going to pay off.
Super Member
Joined: Jan 2004
Posts: 538
Likes: 2
From: Silicon valley
Audi C7.5 S6
I can tell you my C32 definately gets heat soaked. The power is way up on cooler days. The retard for the ignition timming is controlled by the knock sensors and the air intake temp. When the air intake gets too warm, timming is pulled. When there is detonation, timming is pulled.
I suppose, if one had 100 octane fuel, all the time, less timming would be pulled.
The timming is pulled quickly, but advanced much more slowly, so once timming is pulled, it takes a while to back to normal.
Adding a pulley kit just makes the situation worse.
I suppose, if one had 100 octane fuel, all the time, less timming would be pulled.
The timming is pulled quickly, but advanced much more slowly, so once timming is pulled, it takes a while to back to normal.
Adding a pulley kit just makes the situation worse.
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Joined: Mar 2006
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From: Ohio
...
So has anyone done any testing to prove that all this work is going to produce any more horsepower. Has anyone dyno'd the car with stock intercooler and then say run the pump suction line into a bucket of ice water on the dyno to see if it makes any horsepower. Seems like an easy test to at least determine whether all this work and dollars are going to pay off.
MBWorld Fanatic!
Joined: Nov 2001
Posts: 1,289
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From: OC
C32
What I am saying is the intercooler radiator and pump may not be the problem with heat soak. It is opossible that the intercooler core(underneath the supercharger) is the problem. You can put all the ice water you want through the system but it may make zero difference.
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From: Chicago
04 C32
The mod won't give you more power on the dyno. I have 0 interest in a resevoir packed with ice. The larger resevoir will just prevent the car from losing power after multiple runs in a row.
MBWorld Fanatic!
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From: OC
C32
Granted the car makes more power on a cold morning versus a hot day, but I am not sure a larger reservior will solve this. Maybe it will.
IK-22 plugs have really cured most of my heatsoak issues. Car runs like it is running on race gas with 91 octane.
Super Member
Joined: Jan 2004
Posts: 538
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From: Silicon valley
Audi C7.5 S6
The IK22 (colder) plugs may help on hot days, when the knock sensors cause it to pull timming (which is also dependant on IAT).
The whole IC system needs rework, both heat exchangers, under the blower and in front of the radiator, the reservoir and the coolant pump.
The whole IC system needs rework, both heat exchangers, under the blower and in front of the radiator, the reservoir and the coolant pump.
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From: Ohio
...
if the car pulls timing because the IAT is too high and/or there is any detonation present, then you make less power...the cooler the IAT, the more timing the car will allow, up to the max it is programmed for...
i live in houston=lots of heat and humidity, the two together are a bad mix for performance, especially forced induction...
Super Member
Joined: Jan 2004
Posts: 538
Likes: 2
From: Silicon valley
Audi C7.5 S6
go to this webpage, for a one year $24.95 subscription, for one car:
http://www.alldatadiy.com/index.html
For C32, look under "Powertrain Management" >> "knock sensor" >> "Description and Operation" >>" Anti-Knock Control Function"
Lots of interesting info.
http://www.alldatadiy.com/index.html
For C32, look under "Powertrain Management" >> "knock sensor" >> "Description and Operation" >>" Anti-Knock Control Function"
Lots of interesting info.
MBWorld Fanatic!
Joined: Jun 2006
Posts: 1,934
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From: Chicago
04 C32
i will bet money that this statement is wrong...
if the car pulls timing because the IAT is too high and/or there is any detonation present, then you make less power...the cooler the IAT, the more timing the car will allow, up to the max it is programmed for...
i live in houston=lots of heat and humidity, the two together are a bad mix for performance, especially forced induction...
if the car pulls timing because the IAT is too high and/or there is any detonation present, then you make less power...the cooler the IAT, the more timing the car will allow, up to the max it is programmed for...
i live in houston=lots of heat and humidity, the two together are a bad mix for performance, especially forced induction...
I didn't mean that adding ice won't give you more power on the dyno. I think that you would gain. I meant that I don't care about ice because I'm not going to ever put ice in my resevoir.
MBWorld Fanatic!
Joined: Jun 2006
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From: Chicago
04 C32
The car pulls harder during cooler weather for several reasons, and cooler coolant is only one. I'm not saying that a larger/cooler resevoir is the cure all for everything, but it is one variable that you have control over.
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From: Ohio
...
just wanted to update this...
i am waiting on a battery relocation kit to come in, the battery is going to have to go in the trunk in order to make room for the intercooler reservoir under the hood...going to buy an optima battery as well while i am doing the relocation.
i will keep you posted on when i am going to have a chance to do the install...
i am waiting on a battery relocation kit to come in, the battery is going to have to go in the trunk in order to make room for the intercooler reservoir under the hood...going to buy an optima battery as well while i am doing the relocation.
i will keep you posted on when i am going to have a chance to do the install...
Super Member
Joined: Dec 2003
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The intercooler/aftercooler under the supercharger is part of the problem. That is why I have reworked the flow on mine and having a custom one being built which increases the volume that flows through it. The entire cooling system needs to work together. The point of this exercise is not to make more power, but how not to loose power under heat soak.
Thread Starter
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Joined: Mar 2006
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From: Ohio
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The intercooler/aftercooler under the supercharger is part of the problem. That is why I have reworked the flow on mine and having a custom one being built which increases the volume that flows through it. The entire cooling system needs to work together. The point of this exercise is not to make more power, but how not to loose power under heat soak.
i would still love to see some pics of the intercooler...
i agree with you on not loosing the power that is there, heat soak sucks...
