Is there a 10-20 back to back dyno chart and temps log for each run yet? Can do all in less than an hour of dyno time! Cobb has inhouse dyno no excuse not to show everyone unless it's zero benefit in real world.....
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Cobb Intercooler for Bronco Raptor - Tested/Data - Amazing Performance
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Your right about the aftermarket, unproven claims & non-engineered products, etc.
However with an air-to-air intercooler a dyno run is just not a valid and accurate test, any more then a dyno run is a good test of brakes, or the ability of your top not to delaminate, etc.
A wind tunnel test would be more relevant, ask for that
yeah it would most show gains from intake flow path. Not so much from its difference in cooling
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Seriously, you're showing an unhealthy obsession here with this 20 back to back dyno runs thing. Well, at least you brought it down to 10-20 now
.Please provide ONE SINGLE REMOTELY REAL WORLD USE CASE WHERE SOMEONE HOLDS A GEAR FROM LOW RPM, AT WOT, TO REDLINE AND THEN COASTS DOWN BACK TO LOW RPM AND REPEATS THIS 10 TIMES IN A ROW.
Conversely, my data is highly relevant and is a set of conditions used very frequently by anyone simply going fast. WOT, across many gears.
Look, I get it, aftermarket units weigh more and thus have a higher thermal mass and they clearly exhibit (as per my data) the characteristic of a longer time constant when MCTs are DECREASING (slower/smoother "wiggles"). This just isn't a particularly relevant part of the use cycle and is dwarfed by the clear and large benefits.
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So real world benefits only show on dyno runs. Not real world driving. Got it.
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Ah I’m sitting here wondering what the f 10-20 meant. 6-7
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And that would map to any real world driving scenario? Nope, not even remotely close to one.
Not even a single dyno run would either because those are fixed in 6th gear, start at low speed/low rpm (not normal ones for 6th gear), then WOT to redline, concluding with a coast down to a very low speed. Who EVER does that in the real world? Seriously.
What would make sense? Well obviously some high speed desert style runs on smoother terrain, where bursts (and some sustain) of WOT are used, across gears. The goal would be to simply get the IC taxed and get the underhood temps up. Similarly some fast hill climbing in some place like Glamis (a drag race style start then high load across just a few gears). This is high load/drag, significant turbo boost but not really high speeds to maximize IC cooling. Or heck even a few 1/8th or 1/4 mi runs back to back, if the street is your thing.
It would be great to have some aftermarket IC vs. stock IC test data for these scenarios for sure. However, my gut (based on my results in the OP) tells me there would be very few moments of time (if any) where the stock IC might be outperforming an aftermarket one, and furthermore, if those exist, they might be at times when it simply doesn't matter (i.e. low or off throttle).
Front shutters are really just for gas mileage and anti-icing during certain atmospheric conditions.Yeah the rear shutters. I just installed the livernois unit and it doesn’t reuse them either.
the rear shutters close when stationary idling. The radiator fans draws vacuum from above, negative pressure behind the intercooler, the rear shutters close, and draws air from the front across the intercooler. Likely the front shutters are commanded open. Ultimately to avoid extreme heat soak at low mph, idle, crawling. When moving forward the pressure is no longer negative, rear shutters open.
So it does what the intercooler efans on the f150 raptor does. It’s a pretty slick design. Part of me is sad to have given that up.
To your point, the sheer size of the unit and data you’re showing may help overcome the loss even in that single use case.
Rear shutters can be reused no problem, it just requires zip ties for mounting but is functionally fine. One flap will hit an a/c condenser line and won't fully open but it's 80% there. Mounted to my CP-E which is the same size core.
Ok nice. Does the upper portion still line up to the channel above and seal between the radiator and the fan? To me it looked like the extra thickness of the intercooler blocked that off so it wouldn’t be able to function but I will take another look.Front shutters are really just for gas mileage and anti-icing during certain atmospheric conditions.
Rear shutters can be reused no problem, it just requires zip ties for mounting but is functionally fine. One flap will hit an a/c condenser line and won't fully open but it's 80% there. Mounted to my CP-E which is the same size core.
From what I can remember, it does.
When installing these, also take a look at the sealing around the front of the intercooler. I physically took out the shutters from the housing so I'm still using the shutter housing (but with no shutters in it). Provides some duct sealing this way but It's likely worth it to spend some time completely sealing the front up. The thicker core needs all the help it can get in terms of air flowing through as opposed to around it.
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For my data in the OP, I slid the OEM unit out (rear shutters come along for the ride) and slid the Cobb in to place. I didn't do anything whatsoever with any shutters or seals, factory or otherwise. I'd say it's working very well just as is.
Mine didn’t even come with rear shutters from the factory. I’m not sure if it was a configuration thing or what. Every other similar Bronco I’ve looked at had them. Possibly just misbuilt from the factory, but it never caused any issues when I had a stock location intercooler
I did not put the rear shutters back on as well. I did not have any zip ties long enough, and when I noticed it did not really do anything, I just said Oh well.
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I did this on my R&D Raptor after seeing your post, for the community.
This is NOT something I'd recommend anyone do because it's not practical, and airflow lacks on a dyno compared to real street use.
Dyno Room: 64* Ambient temps
Blue line (COBB COLD Truck!), Pull #1 - Charge temps start at 86.51* and end at 81.16*at end of the pull.
Red line (COBB HOT Truck!), Pull #20 - Charge temps start at 94.50* and end at 83.80*at end of the pull.
For fun I am going to overlay the stock intercooler (Red line, cold, pull #1) vs the COBB intercooler (Blue line, cold, pull #1 again)
Blue line (Stock intercooler, COLD Truck!), Pull #1 - Charge temps start at 98.10* and end at 117.49* at end of the pull.
Red line (COBB intercooler, COLD Truck!), Pull #1 - Charge temps start at 86.51* and end at 81.16*at end of the pull.
The COBB intercooler is clearly doing it's job, even after a ton of abuse. I have this same intercooler on my Ranger. It performs the same.
https://www.goosetuned.com/product-page/cobb-ford-intercooler-bronco-raptor-2022-2024
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