[Terry335]

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%.

[Kbueno]

454 torque!!

[slubu]

For the rookies, what is "the factory boost control system"?

[e90AW335i]

Nice numbers T, you gonna post a DIY for the cone filter, or begin to sell them?

[Eazyrock]

Interesting... Awesome numbers.

[silvrevo]

Nice "JUICeY" Numbrs Terry!

Need to change your sig. now......

Looks like your the Big Al of the Bimmer "tooners"!!!!!!!!

Cheap flow "$" .......Big Go !!!!!!!!

[Terry335]

Originally Posted by kyleh4852

Nice numbers T, you gonna post a DIY for the cone filter, or begin to sell them?

Nah I just bought them from another forum member, they kind of suck on the street but the power is there. Just buy two filters w/ 3" opening, have a muffler shop make two 2" -> 3" transitions, and away you go.

[OpenFlash]

haha... those are the home brew intakes I made a few weeks back. Funny to see them end up on your car

Shiv

[Eazyrock]

You keeping the filters set up that way or did you just do it for testing purposes?

[e90AW335i]

Originally Posted by Terry335

Nah I just bought them from another forum member, they kind of suck on the street but the power is there. Just buy two filters w/ 3" opening, have a muffler shop make two 2" -> 3" transitions, and away you go.

Nice....

[grkm3]

nice numbers Terry,we have 104 race gas here where I live,do you think that could be run safely or were you on 104 oct?

[down4it]

Nice numbers!!! I see raising the boost on this motor even by 1 to 1.5psi makes a pretty big difference in the WHP... Must feel nice on the road running 15psi thru the band

[Terry335]

Originally Posted by grkm3

nice numbers Terry,we have 104 race gas here where I live,do you think that could be run safely or were you on 104 oct?

I was on ~98 octane. 104 would be a nice bit of extra margin. But like I said I don't endorse this kind of power on the factory drivetrain, turbo hardware, etc .

[Terry335]

Originally Posted by Eazyrock

You keeping the filters set up that way or did you just do it for testing purposes?

I'm going to leave them on for a bit and try to get to the track, if it ever opens back up.

[Terry335]

Originally Posted by shiv@vishnu

haha... those are the home brew intakes I made a few weeks back. Funny to see them end up on your car

Shiv

Small world.

[grkm3]

Originally Posted by Terry335

I was on ~98 octane. 104 would be a nice bit of extra margin. But like I said I don't endorse this kind of power on the factory drivetrain, turbo hardware, etc .

If I get my 335 I will run the 104 and just use the switch for when I want to really get into trouble.I havnt been folowing your pills and switches,but do you think you can make 2 switches,one for like 14 psi/race gas and one for like 15-16 psi for people that can get up to 110 oct.

[silvrevo]

Originally Posted by shiv@vishnu

haha... those are the home brew intakes I made a few weeks back. Funny to see them end up on your car

Shiv

The Irony of it all..........Humm we dont get Irony in these parts.

[e90AW335i]

Originally Posted by grkm3

do you think you can make 2 switches,one for like 14 psi/race gas and one for like 15-16 psi for people that can get up to 110 oct.

I wondering the same thing for the 93/94 pill compared to JB2...

JB2 always one, switch for hot pill, another switch for R....is that possible?

[Terry335]

Originally Posted by grkm3

If I get my 335 I will run the 104 and just use the switch for when I want to really get into trouble.I havnt been folowing your pills and switches,but do you think you can make 2 switches,one for like 14 psi/race gas and one for like 15-16 psi for people that can get up to 110 oct.

This high horsepower stuff really isn't my customer base, I just do it for fun.

The JB2 is designed for guys who want something inexpensive and reliable, so I don't see myself spending much time on new race switches, etc. But, it would be easy to rig on your own. The hot pill is just a 270ohm resistor, so if you made up a switch that added say 750ohms (1/2 watt, 2% tol) it would work.

[Bubbles]

Nice numbers Terry! Now clean up that dusty engine bay!

[Terry335]

Originally Posted by slubu

For the rookies, what is "the factory boost control system"?

It just means I let the ECU control boost. The signal is altered and the race gas switch tricks it in to higher solenoid duty cycles.

[grkm3]

Originally Posted by Terry335

This high horsepower stuff really isn't my customer base, I just do it for fun.

The JB2 is designed for guys who want something inexpensive and reliable, so I don't see myself spending much time on new race switches, etc. But, it would be easy to rig on your own. The hot pill is just a 270ohm resistor, so if you made up a switch that added say 750ohms (1/2 watt, 2% tol) it would work.

Iv been waiting for Shiv to make a 104-110 race map like the s4's have and if by the time I get my car he dosnt have any I will use your way to get the power.

I will also be getting an xi 6spd to put the power down.