[PresaMat]

Originally Posted by Kindryck

I think they should go Bluetooth and skip the wiring. But that might push the price up even further.

K

Heh stay away from bluetooth for a mod like this... too serious to have to worry about wireless. I would much rather have the wires instead of troubleshooting APIs/hardware etc etc - would be way too buggy and way too complex.

[Kindryck]

Originally Posted by PresaMat

Heh stay away from bluetooth for a mod like this... too serious to have to worry about wireless. I would much rather have the wires instead of troubleshooting APIs/hardware etc etc - would be way too buggy and way too complex.

Possibly. But might not be as bad as you think if it is a dedicated setup. IE. Shiv provides all the bluetooth components and has it presetup before shipment. Could be any other wireless tech, if you want simple.

Just thinking outside the box.

K

[tommithy]

The problem with bluetooth, just like any other wireless connection, is that it's susceptible to interference. I'd hate it if for some reason there was some interference and the xcede kept switching back and forth between 2 different maps while I'm drivin down the road!!

[canuck335i]

Question to Shiv,

concerning the exhaust, it will probably be made in stainless right? if so, will it rust? I ask because my last 2 exhaust kits (Neuspeed on Audi S4 and Hartge on BMW M5) did ended up rusting even if supposedly made in stainless steel and it was pretty disapointing to see that.

[sstarch1]

Wonder if it is possible to keep the exahust tips AS STOCK as possible, love the look. Thick metal.

[///Matt]

you could always reuse the stock tips, if you don't mind cutting up the stock.

[sstarch1]

Same size? I dont think Shiv has stated yet.

[OpenFlash]

Originally Posted by sstarch1

Same size? I dont think Shiv has stated yet.

They are roughly the same size. Looks like stock for the most part. Might be 1/4" bigger. Can't go much bigger, thankfully, since the bumper cut-out is pretty small.

Shiv

[sstarch1]

I was inquiring to the thickness of the exhaust tip, i like the thick look of the perimiter and how it is rounded, and not sharp at the edge.

[gtr335i]

Have you looked into getting the launch control to work with the xede and the BMW

[gtr335i]

oh no shiv you have competition now

http://www.e90post.com/forums/showthread.php?t=33788

they have to be kidding. i love your pricing now.

[gtr335i]

and for anyone who complains on pricing take this

http://www.e90post.com/forums/showthread.php?t=29206

3k for a exhaust only b/c it has the name hamman written on it.

[OpenFlash]

Originally Posted by gtr335i

Have you looked into getting the launch control to work with the xede and the BMW

Not yet. And as with the top speed governor, I'm probably not going to. I don't foresee too many people drag racing their 335i. Plus, launch control a traction limited 2wd car isn't too useful. On an AWD EVO that either bogs or spins all fours at the launch, some sort of 2 step can be useful. But I'm not much of a drag racing who what the hell do i know?

shiv

[russ_777]

Originally Posted by tommithy

The problem with bluetooth, just like any other wireless connection, is that it's susceptible to interference. I'd hate it if for some reason there was some interference and the xcede kept switching back and forth between 2 different maps while I'm drivin down the road!!

Not so fast there...it is not accurate to imply that BT is just like any other wireless connection. This would be a complete non-issue with some care in the signaling design. This calls for a very simple communications system that must transmit and receive a very small number of discrete commands. Given that, the forward error detection and correction coding inherent in BT and the use of fail-safe message sequence and control logic would prevent the scenario you describe. These sort of system design measures are commonly used to overcome the effects of noise and "interference" in RF commmunications systems. Also, because bluetooth uses a spread spectrum modulation scheme, it is inherently immune to EMI when compared to RF links that don't use SS.

[geoff2010]

Originally Posted by russ_777

Not so fast there...it is not accurate to imply that BT is just like any other wireless connection. This would be a complete non-issue with some care in the signaling design. This calls for a very simple communications system that must transmit and receive a very small number of discrete commands. Given that, the forward error detection and correction coding inherent in BT and the use of fail-safe message sequence and control logic would prevent the scenario you describe. These sort of system design measures are commonly used to overcome the effects of noise and "interference" in RF commmunications systems. Also, because bluetooth uses a spread spectrum modulation scheme, it is inherently immune to EMI when compared to RF links that don't use SS.

[Kindryck]

Originally Posted by russ_777

Not so fast there...it is not accurate to imply that BT is just like any other wireless connection. This would be a complete non-issue with some care in the signaling design. This calls for a very simple communications system that must transmit and receive a very small number of discrete commands. Given that, the forward error detection and correction coding inherent in BT and the use of fail-safe message sequence and control logic would prevent the scenario you describe. These sort of system design measures are commonly used to overcome the effects of noise and "interference" in RF commmunications systems. Also, because bluetooth uses a spread spectrum modulation scheme, it is inherently immune to EMI when compared to RF links that don't use SS.

[canuck335i]

Originally Posted by russ_777

Not so fast there...it is not accurate to imply that BT is just like any other wireless connection. This would be a complete non-issue with some care in the signaling design. This calls for a very simple communications system that must transmit and receive a very small number of discrete commands. Given that, the forward error detection and correction coding inherent in BT and the use of fail-safe message sequence and control logic would prevent the scenario you describe. These sort of system design measures are commonly used to overcome the effects of noise and "interference" in RF commmunications systems. Also, because bluetooth uses a spread spectrum modulation scheme, it is inherently immune to EMI when compared to RF links that don't use SS.

it hurts when I read this...

[canuck335i]

How does the Vishnu exhaust sound compared to a stock exhaust? Is it very noticeable and a lot louder?

concerning the exhaust, it will probably be made in stainless right? if so, will it rust? I ask because my last 2 exhaust kits (Neuspeed on Audi S4 and Hartge on BMW M5) did ended up rusting even if supposedly made in stainless steel and it was pretty disapointing to see that.

[OpenFlash]

You can hear the exhaust in the video. How much louder is it than stock? A bit? Noticeably? Barely? I dunno. Not sure how i can quantify it for you guys. I and everyone else who has rode in it seem to think it sounds wonderful. Under boost, it's a bit louder than stock. At idle and light load, where the factory exhaust shuts off one of the tips, it's more than a bit louder than stock. But that's when the stock exhaust sounded like a vacuum cleaner.

-shiv

[Ray]

Originally Posted by NaViT

someone asked also... "How does the aftermarket exhaust sound compared to a stock exhaust? Is it very noticeable and alot louder?" can u letmme know also?

Ofcourse, everyone has their standards, but mated to an I6 will not make it too much louder.

[RiXst3r]

Originally Posted by shiv@vishnu

It's certainly noticeable. But going back to that after having 370lb-ft of torque and 330whp is probabably going to be a bummer. But if the only other setup you've driven is stock, it'll feel great

shiv

Thats good to hear, thanks!

One more question as to the longevity of this mod... can I expect to take the Xede off of my car in 3 years when the lease is up, and put it on my new 2009+ 335i? or will it be obsolite and unsupported by that time? I know you cant predict what bmw will change on the car, but can we expect the Xede to be a "one time purchase"... with maybe a new harness/software if bmw makes changes?

I love the idea of the xede, and commend you on your inginuity...

Do you maybe have some photo's of the XEDE sitting next to the ECU of the 335?

[OpenFlash]

Originally Posted by RiXst3r

Thats good to hear, thanks!

One more question as to the longevity of this mod... can I expect to take the Xede off of my car in 3 years when the lease is up, and put it on my new 2009+ 335i? or will it be obsolite and unsupported by that time? I know you cant predict what bmw will change on the car, but can we expect the Xede to be a "one time purchase"... with maybe a new harness/software if bmw makes changes?

I love the idea of the xede, and commend you on your inginuity...

Do you maybe have some photo's of the XEDE sitting next to the ECU of the 335?

The current Xede should be backwards compatible with every BMW in the last 15 years. So I expect it to be compatible with any BMW model in the foreseeable future. Of course, I can't predict what BMW will do with respect to the ECU but usually the basics never change. By basics I mean the type of crank trigger (hall effects, optical, etc,.) And that is all the Xede really cares about. The other stuff (MAF or MAP, Widebands or Narrow bands, Boost control system, etc,.) can all be accounted for in the Xede software/firmware. The hardware in th Xede hasn't changed in several years. I'll take some pics of the Xede wired in next to the ECU this weekend. It's ALMS weekend at Laguna Seca so I might not get to it until Sunday night.

Cheers,
shiv