Underboosting ESS 135i dynod. 313SAE @ 5.5 PSI!

OZ!MSport · 03-02-2009, 04:50 AM

Quote:

Originally Posted by E82tt6

The car drives wonderfully, and I can't wait to see the power it makes running full boost.

Hey E82tt6,

Any update on this... have you got the US tune from ESS yet?

marconi118 · 03-02-2009, 11:07 AM

There is an hardware solution posted by shiv on this forum to put a resistor partitioner on the secondary o2 sensor. DME will pas the cat emission test and restore normal operating conditions

Mr. 5 · 03-02-2009, 11:19 AM

I believe this.
I've been in situations where less boost meant more hp.

It would be nice to see the AtoFs.
If they were the same or close to the same then I wouldn't believe it, but if the AtoFs on the lower boost map were vastly different then I have no problem with believing this to be true.

Good job to ESS!

sales@ESSTuning · 03-02-2009, 02:35 PM

The boost issue has been resolved. MSD81 makes the boost advertised (see AR's recent thread on their MSD81 335xi) and works perfectly.

US catless is still in testing (but yes, sims will work fine to clear the light temporarily). The US versions are much more complicated than Euro.

ar design · 03-02-2009, 03:17 PM

Quote:

Originally Posted by Sales@ESS

The boost issue has been resolved. MSD81 makes the boost advertised (see AR's recent thread on their MSD81 335xi) and works perfectly.

US catless is still in testing (but yes, sims will work fine to clear the light temporarily). The US versions are much more complicated than Euro.

I can confirm one of our clients has a perfectly running ESS/ar tuned MSD81 335XI, and it makes a TON of power. That poor Cobra owner thought we must have had a bottle in the car, he refused to believe we had JUST a TUNE!!

RiXst3r · 03-02-2009, 03:36 PM

Quote:

Originally Posted by Mr. 5

I believe this.
I've been in situations where less boost meant more hp.

You believe what? it was proven earlier that the dyno's boost gauge was broken, it was 10.5psi, not 5.5psi, which sounds about right for the HP numbers

Mr. 5 · 03-02-2009, 05:27 PM

Quote:

Originally Posted by RiXst3r

You believe what? it was proven earlier that the dyno's boost gauge was broken, it was 10.5psi, not 5.5psi, which sounds about right for the HP numbers

I jumped to conclusions.

03-02-2009, 11:07 AM	#24
marconi118 Major 100 Rep 1,194 Posts Drives: 06/07 e93 335i Join Date: Nov 2008 Location: europe iTrader: (0)	There is an hardware solution posted by shiv on this forum to put a resistor partitioner on the secondary o2 sensor. DME will pas the cat emission test and restore normal operating conditions
	Appreciate 0 Quote

03-02-2009, 11:19 AM	#25
Mr. 5 Modder Raider 844 Rep 8,633 Posts Drives: M3 Join Date: Apr 2007 Location: Surf City, HB iTrader: (31) Garage List 2007 e90 335i [8.00]	I believe this. I've been in situations where less boost meant more hp. It would be nice to see the AtoFs. If they were the same or close to the same then I wouldn't believe it, but if the AtoFs on the lower boost map were vastly different then I have no problem with believing this to be true. Good job to ESS! __________________ e36 M3 Coupe, e36 325i Sedan e90 335i--SOLD Best 60-130-------------9.15 Seconds------------------WWW.MR5RACING.COM
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03-02-2009, 02:35 PM	#26
sales@ESSTuning 402 Rep 3,149 Posts Drives: ESS M3 / M4 Join Date: May 2007 Location: AZ iTrader: (6)	The boost issue has been resolved. MSD81 makes the boost advertised (see AR's recent thread on their MSD81 335xi) and works perfectly. US catless is still in testing (but yes, sims will work fine to clear the light temporarily). The US versions are much more complicated than Euro.
	Appreciate 0 Quote

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