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View Full Version : Hit 400rw with the JB!


Terry @ BMS
01-04-2008, 10:26 PM
Hey gang,

For kicks I decided to throw a dual cone air filter setup on the car to see what it would do. In the process I might have set a 335i record for the most power for the least dollars spent.

Here is the mod sheet:
JB2HR: $499
UR DP: $550
Cone air filters: $80
Total: $1129

Everything else on the car including catback, 2nd cats, resonator, diverter valves, etc is all stock. Only other mod is K1 rims w/ drag radials @ 28psi tire pressure. The car doesn't even have the golf tee mod.

The car is using the factory boost control system with one solenoid bypassed, and boost was very steady across the board with a light roll off to redline. No spikes, camel bumps, boost bombs, or surprises.

Also before I post the graphs I do not suggest people push their cars this far, at 15psi+ boost, even on race gas, bad things can happen. It's not good for the long term. But it does make for a dyno day!

Runs 16 & 17 are the normal JB2HR with the new air intake. Power jumped up to 392rwhp/432rwtq! Boost spiked to 15.5psi and held around 14.

Then for runs 18 & 19 I decided to throw in a second hot pill (not suggested!), and power jumped up to 402rwhp/453rwtq!!!
Boost spiked to 16.5psi and held around 15.

Ambient temp was 65 degrees and the correction factor was 2%.

http://www.bmwjuice.com/jb2hr_intake.jpg

http://www.bmwjuice.com/jb2hr_intakevsnointake.jpg

http://www.bmwjuice.com/filter.jpg

TBone535i
01-05-2008, 07:31 PM
Terry,

Where did you place the second Hot Pill? Those numbers are really sick brother. I have been running around town with my 535i with JBS2HR and its awesome but I am still thirsty for more power. On my last Dyno I put up 335 rwhp and 375 lbs. of torque. I see you putting up theses numbers which I can't fathom. When the guys at BMW read about this stuff they must just love it. Great work.

Terry @ BMS
01-05-2008, 11:19 PM
Thanks!! I can't say I would suggest a second hot pill. Your next mod needs to be Ultimate catless downpipes, and maybe a high flow catback. :)

reb03
01-06-2008, 09:29 AM
Thanks!! I can't say I would suggest a second hot pill. Your next mod needs to be Ultimate catless downpipes, and maybe a high flow catback. :)
I'm all for performance but I don't understand going catless. Why not high flow cats? Doesn't anyone care about emissions?

Terry @ BMS
01-06-2008, 09:33 AM
I'm all for performance but I don't understand going catless. Why not high flow cats? Doesn't anyone care about emissions?

Most of us remove the rear cats without giving it a second thought, but the performance is better if you remove the front cats and leave the rear cats. I don't suggest completely catless as aside from environmental concerns you'll get some odor.

But to answer your question many don't care about emissions. :)

MustGoFast
03-16-2008, 10:08 AM
nice.... I'll go so far as to say I hate emissions.

e36m34life
03-20-2008, 03:37 AM
Amazing! This makes me even more anxiouse to get a 335i! I think all of this came way to fast, a couple years ago I would have never thought BMW was going to mass produce a twin turbo straight six that dynos at over 400rwhp on bolt ons! Maybe its just me, but like I said, it came outa nowhere IMO.

But its a good thing of course:)

C-Level
03-31-2008, 12:00 AM
This is nice to hear! I have the Riss Racing downpipes and JB2H...I wonder if I am close to 400hp. I probably need the R switch.

MustGoFast
03-31-2008, 10:47 AM
Hey Terry.... how much farther do you think you can push the stock turbos? Do you think your getting well beyond there point of efficiency yet? Can they keep up on top at all for you anymore?

Also curious. How's the fuel system? Are you nearing the max out point of the injectors yet? How much room is left before you'll need to upgrade, injectors, pump, rails, other components to continue making more power?

Just curious....

Terry @ BMS
04-03-2008, 05:38 PM
Hey Terry.... how much farther do you think you can push the stock turbos? Do you think your getting well beyond there point of efficiency yet? Can they keep up on top at all for you anymore?

Also curious. How's the fuel system? Are you nearing the max out point of the injectors yet? How much room is left before you'll need to upgrade, injectors, pump, rails, other components to continue making more power?

Just curious....

It's all pretty maxed out at this point. I can bump the boost up and make make a little more dyno glory power, but 400rw is the limits IMHO.

MustGoFast
04-04-2008, 06:08 AM
so are you ready to go to a bigger set of turbos... maybe a couple garretts and see what those stock internals can hold... or are you going to open up the block and beef it up... or are you just done pushing?

C-Level
04-06-2008, 10:42 PM
What is the difference between using 2 hot pills and having the X upgrade? It seems like they both raise the boost about the same amount.

Terry @ BMS
04-10-2008, 04:45 PM
so are you ready to go to a bigger set of turbos... maybe a couple garretts and see what those stock internals can hold... or are you going to open up the block and beef it up... or are you just done pushing?

Pretty much done! It's fast enough for me. :)

Terry @ BMS
04-10-2008, 04:46 PM
What is the difference between using 2 hot pills and having the X upgrade? It seems like they both raise the boost about the same amount.

No difference. Except you can turn up and down the X from the glovebox or under the hood without opening the ECU up. Some people find they can run 50-75% in the winter and just turn it down during the summer.

Terry @ BMS
05-30-2008, 10:18 AM
Just realized the dyno chart isn't here, lol!

http://www.burgertuning.com/images/maxpower.jpg

http://www.burgertuning.com/products.html

SPin1200
06-01-2008, 07:42 PM
what are the times here?

Terry @ BMS
06-03-2008, 02:59 PM
It ran 'OK' :)

http://www.youtube.com/watch?v=31GYfuHV_Zs

bonsai
06-03-2008, 11:05 PM
amazing

Well done Terry.

evo2335
06-05-2008, 10:32 PM
thats awesome... very tempting price for 400rw...

BMWofBloomfield
11-09-2008, 07:53 AM
Wow, under 12 seconds in the 1/4 for under $2K :yikes: I have 1997 Boxster that cost over $15K to get it in the mid 13's from the stock 14.9 :dunno: It could go faster by raising the boost up from 6 lbs but, who wants to buy a new Porsche engine ;) Great job Terry :thumbup:

Terry @ BMS
01-02-2009, 12:31 PM
We've gotten our 2008 135i up to 423hp at the wheels. 11.8 and 120mph drag times! :)

jaaX3
01-02-2009, 12:46 PM
We've gotten our 2008 135i up to 423hp at the wheels. 11.8 and 120mph drag times! :)

Any mods to the transmission necessary? If not yet, when?

midlife
01-07-2009, 07:21 PM
We've gotten our 2008 135i up to 423hp at the wheels. 11.8 and 120mph drag times! :)

hey terry,

i have not been on this forum in months, and i see you here!! :rofl:

100$ GUY
01-10-2009, 04:20 PM
Keep the action going, nice job, congrats :)