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I did see that. Most of that power gain could be attributed to nearly 100% reduction in ambient temp for the 2nd dyno. And there was actually a reduction in torque despite the above which is surprising.
I'd like to see before and after Dragy runs with and without BMS.
Our C63 is RWD so we were able to dyno test our similar style intake running identical JB4 mapping and weather, similar cool down between both runs. Huge 30+whp gains up top.
Our C63 is RWD so we were able to dyno test our similar style intake running identical JB4 mapping and weather, similar cool down between both runs. Huge 30+whp gains up top.
Please don’t take this the wrong way but out of curiosity was the hood open for both runs?
BMS has sold plenty of their intakes, but we don't see much data from these owners. My guess is that its just too much of a hassle to do them! A few said they were going to collect & publish data when they received their MST intake too, but I have heard nothing since. I did my best on the MST data... its on the MST intake thread... so take it with a grain of salt.
Here is something that a Mr. Chris Chen collected & post on the FB page. Temp is in Celcius.
Not sure what OP was expecting when he purchased the intake. The dyno's been published for months. The temp difference vs the HP gain was questioned a million times. The design was clear to see. The filters are still sitting in the hottest area of the engine bay. Plus, you now got metal piping connected directly to the hot turbos. Cold air does not magically appear when you are sitting in 100F heat while your engine is cooking @ 1000. Cold air does not magically appear even if you are cruising in 100F heat. .
For your reference, the fastest C43/450's now are on BMS intakes.
Our C63 is RWD so we were able to dyno test our similar style intake running identical JB4 mapping and weather, similar cool down between both runs. Huge 30+whp gains up top.
That heat shield design is way better too. kudos on making it a bit more comprehensive. The c43 design seems pretty much useless.
Originally Posted by Fresh_Mass
Please don’t take this the wrong way but out of curiosity was the hood open for both runs?
That heat shield design is way better too. kudos on making it a bit more comprehensive. The c43 design seems pretty much useless.
The C43 doesn't have much room for heat shielding or anything like the C63 does.
If it did, we would have designed it just like that. These heat shields for the C63 attach directly to the front snorkel
The purpose of intakes are to eliminate the restrictions within the systems, that's where you get the most gains.
Putting them in a cooler better place aids that, but we're limited with the space given.
any updates on this review. Has there been any new dyno sheets or dragy runs? Any logs of before and after? Looking to purchase the BMS intake. Currently running jb4.
any updates on this review. Has there been any new dyno sheets or dragy runs? Any logs of before and after? Looking to purchase the BMS intake. Currently running jb4.
I just installed BMS on a 2.0 and it’s very loud when fun driving and not noticeable when playing the eco challenge game on the dash. The quoted gains, for just the intake, probably won’t be felt by average operators right? I notice a difference, above 4K with 60% or more throttle. The filter is still getting fed ‘cold’ air from the grill intake to at least ‘blend’ with the engine bay air and the real selling point for me wasn’t being concerned with air temps as much as volume of air which this thing absolutely delivers and volume of air for the tune. I won’t have the tune done until next week so it’ll be nice to notice the ramp up from stock intake, to BMS to BMS with tune. Now, come summer this could be horribly different. I don’t know. I’m sticking with huge volumes for the turbo has to be better...hahaha. AND the 7-10 or 20hp quoted increase isn’t the point to me as the increase is seen in the tune etc and we need more air for that to work which is this intake. Is the warmer air potential loss greater than the volume and tune gain? I’m hoping not. I’m expecting it to be null.
Wouldn't custom hood cowls help with the air flow? I don't see any for these cars, but I'm thinking of doing this mod, and buying a spare hood to mod with hood scoops. Or is that a dumb idea? Either way I think it will look pretty nice , done right.
@TModelle did you end up going back with OEM intake? I mean sounding like a bad toilet is pretty awful
Last edited by C43Insane_XXX; Jul 15, 2020 at 02:18 PM.
So when installing the BMS air filters there are heat shields that are supposed to be bolted to the wheel well with that 8mm nut. nut. So looking at it we all know that heat rises and when you bolt it to the wheel well the heat would rise right into the underneath of the air filter. With that being said there is a bolt you can bolt to that sits on top of the turbo and The shield is covering the turbo and the rising heat would follow the contour of The shield and it would take it to the wheel well where it would rise away from the filter. Has anybody thought of this or done this yet? Heat would rise away from the Air Filters
they are useless pieces of metal lol. Unless you coated them in reflective tape or something I'd imagine they actual do nothing.
I put DEI gold heat reflective tape on the bottom of mine (turbo side),and then bent them little so they cover most of the space above the turbo. I dont see how having them vertical would block any heat, and attaching them direct to the turbo would just heat soak the shield faster. With wrapped DP's I dont really have too much heat at the intakes, unless im sitting stopped for long periods.
FWIW i did a bunch of 20+min logs of my ride home traffic with and without the gold tape and saw about a 9° avg drop post heat reflective tape. Dont have any logs from before intakes or wrapped DP's.
So when installing the BMS air filters there are heat shields that are supposed to be bolted to the wheel well with that 8mm nut. nut. So looking at it we all know that heat rises and when you bolt it to the wheel well the heat would rise right into the underneath of the air filter. With that being said there is a bolt you can bolt to that sits on top of the turbo and The shield is covering the turbo and the rising heat would follow the contour of The shield and it would take it to the wheel well where it would rise away from the filter. Has anybody thought of this or done this yet?
Heat would rise away from the Air Filters
It's a little more complicated as you also have airflow passing over the area when in motion, causing areas of higher pressure and lower pressure.
My point wasn't whether or not this was the perfect solution. My point was that the instructions had them bolted to the wheel well with the top of the shield being right under the air filter. If heat rises and the heat from the turbos follow along the heat shield as it is intended, wouldn't it be better if the rising heat did not rise up directly into the air filter? The way I have it connected the rising heat rises along the heat shield as intended to rise up away from the air filter. At least that's what makes sense to me. Regardless it doesn't really matter much because it only applies when the vehicle is not moving and no matter what you do, the car is still sucking in hot air. Personally I can feel the difference in throttle response. The turbos seem to spool up quicker than stock. And from a rolling dig, it feels quicker. My Eurocharged tune adapts and it is noticeable. I give it a thumbs up, and think they are worth the money. It may give you that extra edge to win.
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