Ess supercharge issue with valves exhaust

zyh66619941008@gmail.com · 11-06-2018, 08:50 PM

Yo guys!
I just installed a Ess supercharge system in my e92 m3, I am also tuning a ipe full f1 exhaust. The manual from the Ess says that these systems doesn't like the valves exhaust and could cause problems. Should I be worried? My mechanic says it is because the valves exhaust has less airflow when it is closed so if I leave it open it should be fine.

GORDON.M3 · 11-06-2018, 11:09 PM

more free flowing exhaust the better.

Patrón · 11-07-2018, 05:20 PM

ess isn't the only one. i've seen problems with vf kits not cooperating with valved exhausts.

eatsleepboost · 11-07-2018, 05:24 PM

With the valve closed there will be restriction and the hp will be down and torque will be up slightly. When you open the valve it's a free flowing system and the engine will now make peak hp. So in short just open the valves if you are going WOT and you won't have any issue.

lvevo · 11-08-2018, 05:23 PM

Like others have said, with the valve closed the exhaust will not flow as much exhaust gas as it would with the exhaust valve open. I would think the valve is then enough that when it is open position, it is thin enough to not cause a measurable difference in exhaust flow. So with the valves open you should be OK. The problem with the valved exhausts is the the primary exhaust exit tail pipe is blocked off so the gas needs to flow "backwards" and out of the other tail pipe. This causes a lot of back pressure with is not good for an engine that is getting air forced into it via supercharger.

With that said I would think the recommendation from ESS is more for driving close to redline with the exhaust valve closed. Just look at the valve in your exhaust when it is open and you will see it is very thin and will not disrupt flow very much.

GP0256 · 11-08-2018, 05:49 PM

When I needed my valves MINI exhaust to stay open, we opened it up and unplugged it and it was always open. There was nothing to tell it to close. It would be pretty loud but if you don't mind, that is an option

kevin @ eas · 11-08-2018, 05:53 PM

We had one on the dyno with the ESS 625 kit and IPE full exhaust and power was down about 50hp. I would run a different x-pipe with a supercharger.

Some reason the link isnt working right but starts at 3:22

Bomiz · 11-09-2018, 02:29 AM

The IPE x pipe is not the best for supercharging. Plus it's not electronic valves

zyh66619941008@gmail.com · 11-24-2018, 03:52 PM

Quote:

Originally Posted by kevin @ eas

We had one on the dyno with the ESS 625 kit and IPE full exhaust and power was down about 50hp. I would run a different x-pipe with a supercharger.

Some reason the link isnt working right but starts at 3:22

Thanks for the info! I think I will put back stock first

11-06-2018, 08:50 PM	#1
zyh66619941008@gmail.com Private 12 Rep 88 Posts Drives: e92 m3 Join Date: Sep 2018 Location: east Lansing iTrader: (0)	Ess supercharge issue with valves exhaust Yo guys! I just installed a Ess supercharge system in my e92 m3, I am also tuning a ipe full f1 exhaust. The manual from the Ess says that these systems doesn't like the valves exhaust and could cause problems. Should I be worried? My mechanic says it is because the valves exhaust has less airflow when it is closed so if I leave it open it should be fine.
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11-06-2018, 11:09 PM	#2
GORDON.M3 Brigadier General 1423 Rep 3,002 Posts Drives: E92 M3 • F25 X3 M-Sport Join Date: Dec 2013 Location: LAX/YYZ/NRT iTrader: (11)	more free flowing exhaust the better. __________________ INSTAGRAM: GORDON.M3 North American Mr12Volt Carplay/Android Auto Distributor DINAN \| EVOSPORT \| VAC \| ARP \| RD SPORT \| NEEZ \| EIBACH \| CSF \| IND \| BILSTEIN \| KLASSEN \| BREMBO \| ENDLESS \| BBS \| BPM SPORT \| PROJECT MU \| EVENTURI
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11-07-2018, 05:20 PM	#3
Patrón PAZUZU 545 Rep 2,058 Posts Drives: '15 M4 Join Date: Sep 2013 Location: San Antonio, TX iTrader: (1) Garage List 2015 BMW M4 [0.00] 2009 BMW M3 [10.00]	ess isn't the only one. i've seen problems with vf kits not cooperating with valved exhausts. __________________ 2009 M3 DCT ESS625+ SOLD 2015 M4 BSM/Silverstone F4LCON @texasMclub IG @jagemoets
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11-07-2018, 05:24 PM	#4
eatsleepboost Captain 420 Rep 656 Posts Drives: Evo Join Date: Aug 2017 Location: Boston iTrader: (1)	With the valve closed there will be restriction and the hp will be down and torque will be up slightly. When you open the valve it's a free flowing system and the engine will now make peak hp. So in short just open the valves if you are going WOT and you won't have any issue.
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11-08-2018, 05:23 PM	#5
lvevo Private First Class 76 Rep 151 Posts Drives: Evo 9, Focus RS Join Date: Sep 2018 Location: IE, CA iTrader: (0)	Like others have said, with the valve closed the exhaust will not flow as much exhaust gas as it would with the exhaust valve open. I would think the valve is then enough that when it is open position, it is thin enough to not cause a measurable difference in exhaust flow. So with the valves open you should be OK. The problem with the valved exhausts is the the primary exhaust exit tail pipe is blocked off so the gas needs to flow "backwards" and out of the other tail pipe. This causes a lot of back pressure with is not good for an engine that is getting air forced into it via supercharger. With that said I would think the recommendation from ESS is more for driving close to redline with the exhaust valve closed. Just look at the valve in your exhaust when it is open and you will see it is very thin and will not disrupt flow very much. __________________ Passively looking for a F80 M3 Competition & Executive w/ manual trans in all colors but black. Prefer 2018 and Carbon Cloth seats.
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11-08-2018, 05:49 PM	#6
GP0256 Lieutenant 191 Rep 493 Posts Drives: 2006 MINI GP Join Date: Jun 2013 Location: Raleigh, NC iTrader: (0)	When I needed my valves MINI exhaust to stay open, we opened it up and unplugged it and it was always open. There was nothing to tell it to close. It would be pretty loud but if you don't mind, that is an option
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11-08-2018, 05:53 PM	#7
kevin @ eas BimmerPost Supporting Vendor 2922 Rep 21,727 Posts Drives: 2015 BMW M4 Join Date: Nov 2011 Location: Anaheim iTrader: (22)	We had one on the dyno with the ESS 625 kit and IPE full exhaust and power was down about 50hp. I would run a different x-pipe with a supercharger. Some reason the link isnt working right but starts at 3:22 __________________ Kevin S. \| european auto source (eas) email: kevin@europeanautosource.com · web: https://europeanautosource.com· tel 866.669.0705 · ca: 714.369.8524 x31 GET DAILY UPDATES ON OUR BLOG · FACEBOOK · YOUTUBE · FLICKR · INSTAGRAM
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11-09-2018, 02:29 AM	#8
Bomiz Captain 323 Rep 824 Posts Drives: SS E92 M3 Join Date: Jun 2012 Location: Los Angeles iTrader: (2)	The IPE x pipe is not the best for supercharging. Plus it's not electronic valves
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