JB2H w/ DP 91 octane dynos

Terry335 · 12-10-2007, 02:29 PM

Hey Gang,

Met up with Driver72 today to do a few dyno runs.

My mods are JB2H, UR offroad downpipes, stock secondary cats, stock catback, drop in air filter. Runs done on 91 octane Shell gas.

My first couple of runs were ~332rwhp, but then the car adapted and HP shot up to ~345 for the last two runs. Boost was holding ~11.5psi with a spike of ~12.5psi.

I think this represents a pretty good street setup. Keep in mind 93 octane guys would get ~5-8rwhp more, and if you have a catback exhaust you might get ~8-12rwhp more. With the stock catback/secondary cats it's very quiet and stealthy, and its nice to have those secondary cats in there in case someone looks under the car.

Attached is a chart comparing my best run to Driver72's best run. I believe his mods are procede v1.47, drop in filter, and ~92 octane. Both cars are automatic.

Crimson92 · 12-10-2007, 02:31 PM

damn....nice

Sniz · 12-10-2007, 02:31 PM

Boostin335 · 12-10-2007, 02:34 PM

What would you expect #s to be on an e92 with 93 octane, and the 2nd cat delete and drop in filter?

sflgator · 12-10-2007, 02:35 PM

Nice dyno, Terry.

e90AW335i · 12-10-2007, 02:38 PM

Good job T....

I still wanna see if your car will pass emissions with the secondary cats in....

Terry335 · 12-10-2007, 02:38 PM

Quote:

Originally Posted by Boostin335

What would you expect #s to be on an e92 with 93 octane, and the 2nd cat delete and drop in filter?

Stock downpipes + catback I imagine around 335 on the JB2H w/ 93.

Driver72 · 12-10-2007, 02:44 PM

Thanks Terry for doing the overlap.
Boy with those catless DP's on your car, you can see how much they help on the top end, where above 4300 rpms, they just produce quite a bit more power.

I think both our test here and Charle's (CEA3) on the Riss Racing DP's pretty much prove that the catless DP's do add a pretty good amount of power, again especially in the higher rpm range.

Terry335 · 12-10-2007, 02:45 PM

Quote:

Originally Posted by Driver72

Thanks Terry for doing the overlap.
Boy with those catless DP's on your car, you can see how much they help on the top end, where above 4300 rpms, they just produce quite a bit more power.

I think both our test here and Charle's (CEA3) on the Riss Racing DP's pretty much prove that the catless DP's do add a pretty good amount of power, again especially in the higher rpm range.

Yeah even with the stock exhaust they seem to help, I would say around 15rwhp. I really like the sound too with the stock catback.

Vyruz Reaper · 12-10-2007, 02:45 PM

Quote:

Originally Posted by Terry335

Stock downpipes + catback I imagine around 335 on the JB2H w/ 93.

how does your "H" hotpill work, just outta curiosity

Terry335 · 12-10-2007, 02:46 PM

Quote:

Originally Posted by Vyruz Reaper

how does your "H" hotpill work, just outta curiosity

Just raises the boost ~1/2psi and richens the AF ratio slightly.

Vyruz Reaper · 12-10-2007, 02:51 PM

Quote:

Originally Posted by Terry335

Just raises the boost ~1/2psi and richens the AF ratio slightly.

right, but is it with wiring, or is it somehting else you do?

benyl · 12-10-2007, 02:52 PM

What would you expect the ET down the 1/4 to be with this setup?

Terry335 · 12-10-2007, 02:53 PM

Quote:

Originally Posted by Vyruz Reaper

right, but is it with wiring, or is it somehting else you do?

It's just a resistor with two connectors, it snaps in to the JB2 harness.

Terry335 · 12-10-2007, 02:53 PM

Quote:

Originally Posted by benyl

What would you expect the ET down the 1/4 to be with this setup?

I tested ~12.4@113 on drag radials, at sea level, 50 degree temps.

jcarlucci1 · 12-10-2007, 02:55 PM

Terry, what was your dyno with the old exhaust? Trying to figure out how much rwhp the cat/resonator delete was worth

Terry335 · 12-10-2007, 03:00 PM

Quote:

Originally Posted by jcarlucci1

Terry, what was your dyno with the old exhaust? Trying to figure out how much rwhp the cat/resonator delete was worth

Hard to say, but here are those dynos:

http://www.e90post.com/forums/showthread.php?t=98706

Race gas and the exhaust was worth around 10rwhp on the best dyno of each, but on average perhaps 15rwhp.

RedGT3 · 12-10-2007, 03:09 PM

Nice numbers Terry

Vyruz Reaper · 12-10-2007, 03:14 PM

Quote:

Originally Posted by Terry335

It's just a resistor with two connectors, it snaps in to the JB2 harness.

hey thanks for the quick response!

i might have to jump ship from TT, as im craving more power. But i love the TT for its safety, and ease on install and uninstall

jcarlucci1 · 12-10-2007, 03:16 PM

Quote:

Originally Posted by Terry335

Hard to say, but here are those dynos:

http://www.e90post.com/forums/showthread.php?t=98706

Race gas and the exhaust was worth around 10rwhp on the best dyno of each, but on average perhaps 15rwhp.

Considering that you were on race gas before, it looks like you are making as much power now with the stock exhaust.. There's only a 9 hp difference and the 96 octane was probably responsible for that..

Mr. 5 · 12-10-2007, 03:19 PM

Very impressed Terry!
I haven't put on the JB2H yet, but I'm looking forward to it.

I'm surprised about the JB2H being leaner than the procede though.
With my previous tests with the JB2, it was richer than the procede.
Does the H make it more lean?

e90AW335i · 12-10-2007, 03:23 PM

Quote:

Originally Posted by Mr. 5

I haven't put on the JB2H yet, but I'm looking forward to it.

Didn't know you were going to the JB....Nice....

12-10-2007, 02:29 PM	#1
Terry335 Banned 96 Rep 2,587 Posts Drives: 335i Join Date: Jan 2007 Location: Socal iTrader: (0)	JB2H w/ DP 91 octane dynos Hey Gang, Met up with Driver72 today to do a few dyno runs. My mods are JB2H, UR offroad downpipes, stock secondary cats, stock catback, drop in air filter. Runs done on 91 octane Shell gas. My first couple of runs were ~332rwhp, but then the car adapted and HP shot up to ~345 for the last two runs. Boost was holding ~11.5psi with a spike of ~12.5psi. I think this represents a pretty good street setup. Keep in mind 93 octane guys would get ~5-8rwhp more, and if you have a catback exhaust you might get ~8-12rwhp more. With the stock catback/secondary cats it's very quiet and stealthy, and its nice to have those secondary cats in there in case someone looks under the car. Attached is a chart comparing my best run to Driver72's best run. I believe his mods are procede v1.47, drop in filter, and ~92 octane. Both cars are automatic. Attached Images
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12-10-2007, 02:31 PM	#3
Sniz Lieutenant General 654 Rep 10,587 Posts Drives: e92 335 - gone // e36 M3 turbo Join Date: Mar 2007 Location: Ellicott City, MD iTrader: (1)	__________________
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12-10-2007, 02:34 PM	#4
Boostin335 Lieutenant Colonel 562 Rep 1,723 Posts Drives: G82 M4CX, C8, MKIV Supra Join Date: Sep 2007 Location: North/Central NJ iTrader: (2)	What would you expect #s to be on an e92 with 93 octane, and the 2nd cat delete and drop in filter?
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12-10-2007, 02:35 PM	#5
sflgator Major General 148 Rep 5,389 Posts Drives: '09 MB C63 AMG & '08 MB GL450 Join Date: Oct 2006 Location: U.S. iTrader: (1)	Nice dyno, Terry. __________________ \|2009 RENNtech MB C63 AMG \| Black/Black Leather/Black Maple \| Premium II \| MultiMedia \| iPod \| \| TeleAid \| Charcoal Filter Delete \| BMC High-Flow Air Filters \| High-Flow Secondary Cats \| Clear Side Markers \|
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12-10-2007, 02:38 PM	#6
e90AW335i Major General 137 Rep 6,608 Posts Drives: e90 335i Join Date: Sep 2007 Location: ...... iTrader: (4)	Good job T.... I still wanna see if your car will pass emissions with the secondary cats in....
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12-10-2007, 02:44 PM	#8
Driver72 Brigadier General 327 Rep 4,484 Posts Drives: 335i - to new owners now. Join Date: Dec 2006 Location: California iTrader: (0)	Thanks Terry for doing the overlap. Boy with those catless DP's on your car, you can see how much they help on the top end, where above 4300 rpms, they just produce quite a bit more power. I think both our test here and Charle's (CEA3) on the Riss Racing DP's pretty much prove that the catless DP's do add a pretty good amount of power, again especially in the higher rpm range.
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12-10-2007, 02:52 PM	#13
benyl Lieutenant 6 Rep 408 Posts Drives: '08 335i, '10 W204 w/m156 Join Date: Nov 2007 Location: Calgary iTrader: (0)	What would you expect the ET down the 1/4 to be with this setup? __________________ E92 335iA, AW on BLK, Al trim, Premium, Nav, 6FL, CA, Sport, PDC, Paddles... W204 C63, OBS on BLK, Carbon Trim, Premium, Performance, Rev Cam, and stock exhaust...
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12-10-2007, 02:55 PM	#16
jcarlucci1 Lieutenant Colonel 63 Rep 1,642 Posts Drives: Jet Black 335i Join Date: Mar 2007 Location: Tampa iTrader: (10)	Terry, what was your dyno with the old exhaust? Trying to figure out how much rwhp the cat/resonator delete was worth
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12-10-2007, 03:09 PM	#18
RedGT3 Major 76 Rep 1,253 Posts Drives: .2 GT3/M3cs Join Date: Jun 2007 Location: FL iTrader: (3)	Nice numbers Terry
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12-10-2007, 03:19 PM	#21
Mr. 5 Modder Raider 753 Rep 8,633 Posts Drives: M3 Join Date: Apr 2007 Location: Surf City, HB iTrader: (31) Garage List 2007 e90 335i [8.00]	Very impressed Terry! I haven't put on the JB2H yet, but I'm looking forward to it. I'm surprised about the JB2H being leaner than the procede though. With my previous tests with the JB2, it was richer than the procede. Does the H make it more lean? __________________ e36 M3 Coupe, e36 325i Sedan e90 335i--SOLD Best 60-130-------------9.15 Seconds------------------WWW.MR5RACING.COM
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