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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > N54 Turbo Engine / Drivetrain / Exhaust Modifications - 335i > Vishnu/FFTEC Single Turbo: Released!



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      07-10-2012, 05:55 PM   #221
rooringhusky
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2007 BMW 335i  [10.00]
Yea SIKH sent me that video and I was going crazy!!

His car sounds so bad ass...Its a new age AT Supra...I would love the external dump but would get so much unwanted attention
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      07-10-2012, 05:57 PM   #222
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Quote:
Originally Posted by shiv@vishnu View Post
Yes and absolutely. I'll have picks of it by the end of the week. Just waiting for the first batch of tanks to show up
Any update on this. Did the tanks come in yet.
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      07-10-2012, 10:50 PM   #223
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that sounds soooooo sick with the external dump, wonder if you could do an external dump with a cutout , would give you the noise/extra power when its open and be quiet when the cutout is closed
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      07-11-2012, 12:22 AM   #224
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^ Would be cool but a nightmare to get it right considering how problematic they are.
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      07-11-2012, 11:26 AM   #225
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Any worries about early cars (pre 3/07) still running the original injectors and HPFP? Also the quad nozzle meth upgrade, are those extra bungs that are welded into the Charge pipe? is the specific placement important?

X...
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      07-11-2012, 11:56 AM   #226
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Originally Posted by Xander View Post
Any worries about early cars (pre 3/07) still running the original injectors and HPFP? Also the quad nozzle meth upgrade, are those extra bungs that are welded into the Charge pipe? is the specific placement important?

X...
The methanol nozzles are installed on the intercooler, and the placement there is important. It also helps prevent the "wet bulb" effect.
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      07-11-2012, 12:10 PM   #227
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Quote:
Originally Posted by MikeB@fftec View Post
The methanol nozzles are installed on the intercooler, and the placement there is important. It also helps prevent the "wet bulb" effect.
It would be interesting to hear about the reasoning behind putting 2 nozzles pre-intercooler. Can you please clear up some confusion regarding puddling and the net-loss of cooling that Devils Own claims? I haven't found any real-world "testing" that backs up their claims, I'm just curious if you have reasons of your own.

I would think that the pre-intercooler placement was simply because you want to spread out the nozzles, and there is only so much piping between the intercooler and throttle body. I've switched from the 2- 1.0mm nozzles to 2- .6mm nozzles in the post-intercooler end tank, and 1-1.0mm nozzle in the normal charge pipe location.

From the Devils own website:
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2. Pre-Intercooler Injection

While pre-intercooler injection may at first seem like a logical approach. Thereby, combining the effects of water methanol injection within the air-to-air intercooler for an increased synergistic effect. It is not so. Matter of fact, it's the opposite. The cooling effects and benefits offered by the water methanol injection are less when injected here then in all other locations. Further, more other issues arise such as puddling which can form in the bottom of the intercooler. Additionally, pour atomization will occur as the fluid will accumulate in the individual air to air intercooler core walls of the intercooler forming larger droplets which will eventually break away resulting in pour atomization. We do not recommend pre-intercooler injection.
Thanks!
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      07-11-2012, 12:38 PM   #228
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Pre-intercooler placement is isn't ideal if that is all you are doing. However, 2 post intercooler nozzles are also installed that do the bulk of the charge cooling. When subjected to uncooled pre-FMIC intake temps, the pre-intercooler mounted nozzles spray meth which gets vaporized immediately so no chance of puddling in the intercooler. The methanol acts as fuel which is suspended in the air charge as it goes through the IC core. The air gets turbulated nicely to ensure a homogenous meth/air mix before the two post-ic nozzles spray. If we were to put all 4 nozzles post-ic, there wouldn't be enough time for 1300cc/min to properly distribute in the air charge during the fraction of a second it has before it gets consumed by the engine. At this power level, a homogenous mix is just as important as a low iAT.

Shiv
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      07-11-2012, 01:52 PM   #229
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Quote:
Originally Posted by shiv@vishnu View Post
Pre-intercooler placement is isn't ideal if that is all you are doing. However, 2 post intercooler nozzles are also installed that do the bulk of the charge cooling. When subjected to uncooled pre-FMIC intake temps, the pre-intercooler mounted nozzles spray meth which gets vaporized immediately so no chance of puddling in the intercooler. The methanol acts as fuel which is suspended in the air charge as it goes through the IC core. The air gets turbulated nicely to ensure a homogenous meth/air mix before the two post-ic nozzles spray. If we were to put all 4 nozzles post-ic, there wouldn't be enough time for 1300cc/min to properly distribute in the air charge during the fraction of a second it has before it gets consumed by the engine. At this power level, a homogenous mix is just as important as a low iAT.

Shiv
Yep, the lack of real-estate/time to mix is what I was referring to. Thanks for the response.
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