RKP F10 M5 front lip

[avlnch]

Originally Posted by stealth.pilot

Wouldn't this lip compromise the design for air flow to the intercooler?

My understanding is that the reason for the cut out area in the middle of the bumper is to optimize air flow to the intercooler.

Motor dept at BMW wants to open up as much as possible for cooling. Aero dept wants to close every opening. I remember an M engineer telling me this when they previewed the 1 Series M.

The lip will reduce airflow and therefore cooling but it's probably minimal and wouldn't be noticed.

The cooling on the F10 M5 is so good (IMO too good) that the concern for lost cooling is very minimal. In fact the gain in aero is probably well worth the loss in cooling.

I remember I could overheat my E60 M5 in the summer running it hard. Impossible to come close to overheating my F10 M5. Then when you shut the car down for around 20 minutes it's almost back to cold start. Never owned a car that cooled as well as the F10 M5.

[IND-Distribution]

Originally Posted by stealth.pilot

Wouldn't this lip compromise the design for air flow to the intercooler?

My understanding is that the reason for the cut out area in the middle of the bumper is to optimize air flow to the intercooler.

You are correct in stating that the openings at the front of the bumper feed the heat exchangers located at the front of the car.

However, the air does not flow into the lower vent located beneath the car and out of the front bumper, but rather into the front bumper's center opening and is then evacuated out of the lower vent. The low pressure zone beneath the car encourages this effect.

By adding a front spoiler to the front bumper we encourage the formation of a high pressure zone above the spoiler, and a low pressure zone below the spoiler. This reduces lift at the front of the car and improves the cars dynamics at high speed as a result.

As an added benefit (and more relevant to this conversation), the high pressure zone at the front of the bumper encourages airflow through the coolers, and allows for better cooling performance at lower vehicle speeds.

As an example, the BMW factory built E92 M3 GT4 race car has very similar cooling system packaging to the F10 M5 with respect to the positioning and placement of its coolers. The original BMW GT4 front spoiler also closes the space left by the "fangs" of the normal M front bumper, and this spoiler has proven to have no detrimental effect on the cars cooling system in the most dramatic racing conditions.

[ColdList]

Originally Posted by Ilia@IND

You are correct in stating that the openings at the front of the bumper feed the heat exchangers located at the front of the car.

However, the air does not flow into the lower vent located beneath the car and out of the front bumper, but rather into the front bumper's center opening and is then evacuated out of the lower vent. The low pressure zone beneath the car encourages this effect.

By adding a front spoiler to the front bumper we encourage the formation of a high pressure zone above the spoiler, and a low pressure zone below the spoiler. This reduces lift at the front of the car and improves the cars dynamics at high speed as a result.

As an added benefit (and more relevant to this conversation), the high pressure zone at the front of the bumper encourages airflow through the coolers, and allows for better cooling performance at lower vehicle speeds.

As an example, the BMW factory built E92 M3 GT4 race car has very similar cooling system packaging to the F10 M5 with respect to the positioning and placement of its coolers. The original BMW GT4 front spoiler also closes the space left by the "fangs" of the normal M front bumper, and this spoiler has proven to have no detrimental effect on the cars cooling system in the most dramatic racing conditions.

You tell him Ilia! GREAT and useful explanation. As always you guys @ IND know your stuff! Were just armchair engineers here.

[IND-Distribution]

Originally Posted by ColdList

You tell him Ilia! GREAT and useful explanation. As always you guys @ IND know your stuff! Were just armchair engineers here.

Thank you! I do not mean to offend or argue and I hope my tone did not appear that way through the void of internet messaging.

We do feel that our clients always make better choices when they are well informed. We do our best to publish as much factual information as possible to allow our clients to know and understand the market and the components they are installing on their cars, prior to making any purchasing decisions.

[Nate@IND]

RKP front lip installed on M5post member "jmh" Beast.

[Justaskme]

Looks really nice.. is this front lip designed by and unique to RkP?

[IND-Distribution]

Correct, this lip was an RKP original design. This lip is the first to follow and integrate with the original BMW front bumper's body lines, and allows for those lines to continue into the surface of the lip itself.

All RKP F10 M5 product is built here in the Midwest with US engineers and US labor:

[Goranot]

Originally Posted by Rob///M5

BMW Performance Spoiler for the F10 is 2X2

Bit confused as do Bmw do a spoiler for the f10 M5 front or rear at present?

[Nate@IND]

Originally Posted by Goranot

Bit confused as do Bmw do a spoiler for the f10 M5 front or rear at present?

BMW performance only offers carbon mirror covers and a trunk spoiler. Both come in a 2x2 carbon weave.

[Goranot]

Thanks Nate the thanks the bmw spoiler they offer is it the same as your performance cf spoiler

http://ind-distribution.com/ind/cate...with-crt-theme

Thanks

[Nate@IND]

Originally Posted by Goranot

Thanks Nate the thanks the bmw spoiler they offer is it the same as your performance cf spoiler

http://ind-distribution.com/ind/cate...with-crt-theme

Thanks

The link to the iND site is the OEM BMW performance spoiler. We offer a body color painted line as an option and the paint work is completed here in house at iND.

[Nate@IND]

Photos of Pertplus's Beast with the RKP front lip installed

[Nate@IND]

RKP front lip and diffuser installed by EAS (All carbon is 1x1 to match the tips and mirror covers)

http://www.flickr.com/photos/europeanautosource

[M5essex]

that looks fantastic. I would be seriously tempted to fit this but I am going for the CP M5 which has been lowered by 10mm and we have some ridiculous speed bumps here and ones that are in the middle of the road, especially in residential zones where your wheels have to straddle the hump... do you know what the ground clearance of the nose is with the lip fitted?

[Nate@IND]

Originally Posted by M5essex

that looks fantastic. I would be seriously tempted to fit this but I am going for the CP M5 which has been lowered by 10mm and we have some ridiculous speed bumps here and ones that are in the middle of the road, especially in residential zones where your wheels have to straddle the hump... do you know what the ground clearance of the nose is with the lip fitted?

As you can see in this photo the RKP front lip does not lower the M5’s ride height as it does not extend past the lowest point of the front bumper. If you are already hitting your lower bumper cover then the RKP lip will be an issue if installed.

This photo really shows the clearance. The lip does not go lower than the OEM bumper cover-

[Nate@IND]

New photo (RKP front lip + Silver stripe)

[Northern X5M]

Originally Posted by Nate@IND

New photo (RKP front lip + Silver stripe)

I was actually going to do something similar to this with stripes but not so wide.
For the lower portion continue the stripes over the RKP Lip and nothing above the opening.

[Nate@IND]

RKP front lip installed on a Imperial blue Beast by EAS.

[Nate@IND]

Fresh out of paint. RKP front lip with a Monte Carlo blue stripe.

[Nate@IND]

Just had a client from the Netherlands send this shot over.

RKP front lip

[DrKevM5]

Not bad. The wheels are curiously attractive.

[cassidysdad]

nate
love the spoiler
have a 14 zcp
i am wondering how durable it is
this is the area i keep hitting and scratching my stock car on those damn parking lot concrete things