E39 M5 + Turbo S52 Build

[litemup]

You don't need a big nozzle pre TB, just one that will tell the ecu you are spraying otherwise the ecu can't tell and won't adjust the tune at all to take advantage of the lower intake temps.

Sent from my GTX3582R

I'm actually having the car tuned with the water/meth at certain load points. I don't need to lean heavily on the fuel trim and timing adjustments that the IAT would provide. We'll see how it works out.

[philly98540]

I was talking about failsafe on meth flow. I was wondering what you were doing.

I was thinking of alarming on high iat in lieu of getting a true failsafe added onto on my DO kit.

Anyone try this route? Is Zeitronix the only ones that have the alarm function available for iat?

[litemup]

I was talking about failsafe on meth flow. I was wondering what you were doing.

I was thinking of alarming on high iat in lieu of getting a true failsafe added onto on my DO kit.

Anyone try this route? Is Zeitronix the only ones that have the alarm function available for iat?

I don't think any thermosistor could react quickly enough to be used in that way.

[bry195]

capacitive sensor.

50khz

[litemup]

capacitive sensor.

50khz

Over my head, haha.

I just always thought IAT, Coolant, and EGT sensors were always slightly laggy.

[philly98540]

capacitive sensor.

50khz

Over my head too. Any links or more info for the magic fast sensor? Can it be direct wired to a Zietronix or Plx type system or is a seperate controller needed? This sounds interesting.

Not trying to derail the PO's build thread. I hope this is relevant to his build.

[bry195]

http://www.automationdirect.com/adc/...d_(CM1_Series)

we know some fluids conduct varying levels of electricity depending on the fluid properties. a cap sensor is capable of measuring very small levels of conductivity. there is a pot on the sensor that you use to adjust the minimum conductivity that equals an "on" state. the sensor takes a+and - voltage and depending on which one you select it will give you back a + or a - that indicates the minimum measurement has been exceeded.

pick a sensor that runs on 12 to 24 volts
decide if the signal you need is a positive or negative
pick the sensor with the sensor voltage output you need
mount the sensor in the path of the meth
turn the pot until the light comes on only when meth is injected and not when just air


most of your touchscreens on phones and so on are a capacitive array. same sensor just arranged in a grid.

[litemup]

Thanks man. That's an interesting option!

[bry195]

sure, also easy enough to do a standalone failsafe as well. I can sketch something up if you get some direction.

[litemup]

Two more steps forward:

I made the first exhaust section and waste gate tube tonight. Everything fit well. And yes, my welding is ugly as hell, but it's solid.












And I also finished the cold side charge piping:




These welds I can't take credit for, hahaha.









That intercooler mount will be painting black eventually.

At this point the majority of the hardware has been completed, and I'm focusing on electrical now.

[highboostingm3]

This is AWESOME!



Can't wait for the electrical/wiring feedback on this.

[vollosso]

This is AWESOME!



Can't wait for the electrical/wiring feedback on this.

Clean your inbox :p

[highboostingm3]

Clean your inbox :p

Clean.

[BigM62]

Clean your inbox :p

Sorry to say, I have had to say that on several occasions in college.

[litemup]

Well guys, here's the latest update.

All the electrical work has been done. I've inhaled enough soldering fumes to realize that it's not a good idea. I probably will be firing the motor for the first time the next time I have some time to spend on it. Very anxious to see it come alive.

Few loose ends like my PCV setup and the rest of the exhaust work, and maybe a headlight or two, but I'm getting close!

My goal is to mistreat this thing all day long at the MIR track rental on Nov. 22. Will keep you guys posted.

[M5Hunter]

My goal is to mistreat this thing all day long at the MIR track rental on Nov. 22. Will keep you guys posted.

thats what I like to hear! Really hoping you can meet that goal.

Looks good, BTW

[Bke36Is]

You sir have poisoned my mind! I have an e39 right around the corner from me that I can pick up for a song! Soo tempted!

[Bke36Is]

Awesome build btw can't wait to see the end results

[cdmbmw]

Sorry to say, I have had to say that on several occasions in college.

lmao.. did nobody else get this? lol

[geargrinder]

lmao.. did nobody else get this? lol

Gots and appreciated. Tho' it was more high school... By college the ladies were better at tending their gardens...at least IMHE.

[M5Hunter]

What size downpipe and exhaust?

[mcoupemindy]

Look forward to seeing this in Nov.

[litemup]

What size downpipe and exhaust?

3.5" downpipe, 3.5" mid pipe, 3.5" to dual 2.5" outlets, then two magnaflow mufflers out back so it resembles the stock exhaust.

[litemup]

Look forward to seeing this in Nov.

Almost running out of time to get it done and then make the trip to CES to get tuned on high boost and race gas. Might make the track rental on the base map and moderate boost if the air-fuel curve looks decent.

[BigM62]

Almost running out of time to get it done and then make the trip to CES to get tuned on high boost and race gas. Might make the track rental on the base map and moderate boost if the air-fuel curve looks decent.

No E85? Which seems to be so "in" now.