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03-02-2018, 04:09 PM | #23 | |
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03-06-2018, 12:59 PM | #24 | |
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the temp of the aluminum tank gets hot over time. the water in the tank gets hot and the aluminum then started to act like a thermos keeping the water warm, then temps gradually rose/rise. in normal driving conditions the stock ess system works better because the plastic resiv and short hose configuration circulated the water quicker and didn't have the heat soak of the aluminum box. the box acts exactly like the ess aluminum manifold. they do not dissipate heat and gradually increase in tempatures. the only way to lower the tempature in the 5 gal system is to add ice. my ice would melt in 5-15 minutes, then it gradually got worse. i didn't log temp differences but i'd guess the box would get 10 deg hotter than the ess stock system in a daily setting. if i were to do it again, i'd do it with a larger heat exchanger in the front like the VF and only connect the 5 gal box for racing at the 1/4 or airstrip. I even considered a heat exchanger in the trunk with dual fans like sand rails and offroad vehicles use but I lost interest.
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03-06-2018, 03:01 PM | #25 | |
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03-06-2018, 03:22 PM | #26 |
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I searched for 1-2 gal tanks to mount in the engine compartment and ended up mounting a 5 gal in the trunk.
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03-06-2018, 03:37 PM | #27 | |
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Aluminum will condensate, an ice chest or fuel cell would be better suited. IMHO, a misting system or even mild water injection is better idea for track environment. We've done this for a quite a few locals with good results.
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03-06-2018, 07:26 PM | #28 | |
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Plastic would actually insulate much better than aluminum (with the exception of large thickness difference) and transfers heat much slower. It is thermally better for the intake manifold because it reduces transfer from the hot engine and engine bay to the interior of the manifold (again depends on thickness of the material throughout the manifold though). Heat soak is a condition where heat is absorbed and not dissipated. If you place an equal dimension aluminum tank and typical plastic tank with amount X of water at temperature Y in an environment at temperature Z, the water in the aluminum tank will reach temperature Z quicker whether temperature Y is higher than temperature Z or vice versa.
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03-06-2018, 09:49 PM | #29 | |
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03-06-2018, 10:20 PM | #30 | |
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I guess the important question is, what is the ITT (in trunk temperature) for each region, exhaust, and diffuser setup...that could change which material is the best choice.
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03-07-2018, 12:36 AM | #31 | |
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For daily driving the stock ess setup is ten degrees cooler than a five gallon water tank. And the more you drive, the hotter the tank water gets where the stock setup maintains 20+ over ambient consistently. In the trunk the exhaust didn’t play a role in the heat of the tank. I can drive my car pretty hard on a hot day and the plastic trunk area doesn’t get hot.
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03-08-2018, 08:12 AM | #32 |
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This went sideways.
The point is to keep the water cool. You do that by increasing the thermal capacity of the system and get the water circulation outside of the hot engine bay. The trunk mount 5 gal aluminum tank meets these objectives. And you don't need ice. At EAS we dyno'd both their car and my car many many times with various water tanks hooked up. We pointed a laser light temp reader at the water in the tank. The car would make the same power whether the water was ice cold or at room temperature. It wasn't until the water reached 115 degrees F before power started declining. I went to the airstrip and track and even on hot days without ice, the water in the aluminum tank pretty much remained at ambient. It was an absolutely amazing difference from the stock ESS system.
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03-08-2018, 12:20 PM | #33 |
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So I pulled the trigger and I have the 650 upgrade coming from ESS for my VT2-575 kit. I have a 6 speed manual and figure I will need a clutch with this power upgrade in the near future as I am running the stock clutch.
Seeing as I have an 08', what do you guys recommend for a clutch and flywheel for a car that is 95% street driven? I don't want a super heavy clutch but if I have to I will deal with it. TIA |
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05-04-2019, 12:28 PM | #35 |
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The larger vf "race" heat exchanger isn't standard in the kit, it's an option.
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05-05-2019, 10:12 AM | #36 | |
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07-10-2020, 09:26 AM | #38 |
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I was thinking about mounting 40' of wound copper 3/4" tubing inside a YETI in the trunk and pump the water through the coil with the ice in cooler. The ice would certainly last longer and temp drop would depend on flow rate/velocity. Weight would be 25lbs for the cooler and 25lbs for the copper which would hold about a gallon of water so 8lbs plus heater hose with insulation and water capacity call it additional 12lbs. And 25lbs of ice. So in the end you're adding a lot of weight. It'll help keep that back end down though and balance the front end weight from the supercharger 😉
Or just use the yeti as an ice tank?
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07-10-2020, 11:39 AM | #39 |
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I would just use 5 gallons of Jameson and u should be good
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07-10-2020, 01:12 PM | #40 | |
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It's surprising how quickly you would go through ice. An ice chest full of ice would already be fully melted by the time staging (engine off/iced manifold) and a single pass was completed. For road course, a custom misting system on the heat exchanger would be better suited.
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07-10-2020, 09:36 PM | #41 | |
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Will probably outlast the regular ice by a long time no?
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07-20-2020, 08:43 PM | #44 |
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My next thought is cutting up the radiator support and mounting a near double capacity intercooler behind the kidneys In front of the AC condenser... I'll run the plumbing up and over where the ram air used to be with a direct shot to the ess coolant tank. My thought process is it'll leave the oil cooler unhindered by an intercooler which I believe is more important but slightly hinder the radiator cooling which is fan cooled anyway.... seems to be plenty of plastic back there that hinders the radiator cooling anyway which I know directs airflow but I believe the stock ess intercooler stifles the oil cooler.... it'll be a lot less plumbing too then the less than optimal ess intercooler... thoughts?
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