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Forced Induction Forum Sponsored by Active Autowerke
Discuss supercharging, turbocharging and even nitrous and water injection here.
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Old 07-22-2013, 08:09 PM   #1
330Cole
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little mods & a little juice

So far I have not done any power mods, and figured it was time to catch up.
I couldnít decide which route I wanted to go, for reasons of cost, maintenance, and fun factor. Also, labor was a serious issue because of my resources and time on this DD. I needed close to $2k in cost, wanted something I could learn from, have close to e46 M3 whp/tq, and fairly reliable on a DD that I could fix if there was any issues.
I have read many N/A, SC, Turbo, and nitrous builds, and couldnít decide on what application was best. So I inquired about something I didnít know much about (Nitrous), to a very reputable, and knowledgeable member on this forum; Rob43, who Pointed me where I wanted to goÖ
The n2o itself would be the main power adder, with a few bold-onís to help it breathe. A true CAI has been ordered, to pull a colder IAT at a slightly larger volume. Catless headers (most likely bimmerbrakes Gen3) will be for opening up the exhaust, and letting the hot nitrous charge out of the engine faster. When my stock clutch goes (145k currently, note: compression test will be done before any nitrous is added) I will go with a lwfw/clutch package (brand undecided). Pulleys/cams are considered. Already have Eisenmann cat back, and 3.38 Diff.
So then I asked Rob how to make the Nitrous ďsafe,Ē because I had everyone and their brother telling me I was stupid and/or going to blow it up. Rob gave me a list of safety featutres, and how they worked. A BottleHeater/blanket will keep bottle pressure consistent at around 950 psi. This means that regardless of ambient temperatures, the spray will have the same preassure behind it to keep things constant. An afr gauge will give the ability to tune through jetting, as well as sound a warning and activate a lean-cut off switch if AFRís reach dangerous levels. A progressive controller will be used to fine tune the shot, adjusting the release to be at a safe rpm window, and come on progressively instead of all at once.
The system will have consistent pressure (monitored through an in-cabin bottle pressure guage), come on progressively within a safe rpm window, be fine-tuned to desired afrís, and have an automatic lean cutoff switch if all else fails.
I will tune up to 75 shot probably. Anything higher will require a direct port setup, and probably some attention to the motor.
Special thanks to Rob43 for all of his help and information!, as well as any members I may (or already have) purchased parts from!
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Old 07-22-2013, 10:15 PM   #2
Twin_Turbo_S54
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lean shut down reacts slower than n20 and...

get a set of colder plugs, heat range 8 at least.

and If you can, turbocharge the engine and do not use n20. Its not desinged for the hobbyist, its more like for the racers.
Requires a lot of attention before each use.
n20 does not forgive even the smallest mistake.

To be on the safe side get a turbo kit from a good vendor and stay on the safe side.
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Old 07-23-2013, 07:55 AM   #3
330Cole
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Quote:
Originally Posted by Twin_Turbo_S54 View Post
lean shut down reacts slower than n20 and...

get a set of colder plugs, heat range 8 at least.

and If you can, turbocharge the engine and do not use n20. Its not desinged for the hobbyist, its more like for the racers.
Requires a lot of attention before each use.
n20 does not forgive even the smallest mistake.

To be on the safe side get a turbo kit from a good vendor and stay on the safe side.
I have been very impressed with the turbo kits I've seen, however it looks as though 7k is the minimum finished price.
The plugs are on my to do list, forgot to put them in there, thanks!


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Old 07-23-2013, 09:23 AM   #4
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Quote:
Originally Posted by 330Cole View Post
I have been very impressed with the turbo kits I've seen, however it looks as though 7k is the minimum finished price.
The plugs are on my to do list, forgot to put them in there, thanks!


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Technique tuning didn't impress? If I didn't swap s54 I would have went with them. Nick G is a legend
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Old 07-23-2013, 09:46 AM   #5
330Cole
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Quote:
Originally Posted by BDUB328I View Post
Technique tuning didn't impress? If I didn't swap s54 I would have went with them. Nick G is a legend
I said I was impressed... Lol TT is the only kit I found for my car and the videos I've seen looked promising, however cost is pricey for me. Still a great piece none the less though!


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Old 07-23-2013, 10:07 AM   #6
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nitrous can be very safe if you run it properly. Make sure you run it with some safety features and be smart about how and when you use it and you will be fine. WOT switch is the only way to run it and probably the most important, a window switch (there are a few inexpensive ones out there that are very reliable). Make sure you invest in a bottle heater, vent tube and buy yourself an accurate scale to weigh your bottle on. Like someone above said make sure you get some colder plugs (BKR7's) and make sure you have the kit jetted correctly (on a dyno is really the only way dont rely on manufacture specs).

I didnt read your whole post, i'm assuming you are using a wet kit? do not run a dry kit on your car. And make sure your fuel pump is working properly and wont give out on you.
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Old 07-23-2013, 10:19 AM   #7
330Cole
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Quote:
Originally Posted by bAby norAA View Post
nitrous can be very safe if you run it properly. Make sure you run it with some safety features and be smart about how and when you use it and you will be fine. WOT switch is the only way to run it and probably the most important, a window switch (there are a few inexpensive ones out there that are very reliable). Make sure you invest in a bottle heater, vent tube and buy yourself an accurate scale to weigh your bottle on. Like someone above said make sure you get some colder plugs (BKR7's) and make sure you have the kit jetted correctly (on a dyno is really the only way dont rely on manufacture specs).

I didnt read your whole post, i'm assuming you are using a wet kit? do not run a dry kit on your car. And make sure your fuel pump is working properly and wont give out on you.
The progressive controller will be used to control the window/WOT feature. A bottle heater/blanket will be used. It is most likely going to be an NX proton plus kit, (wet). Tuning would start at a 35 shot, with factory recommended jetting as a starting point. From there, I will increase the fuel jetting until afr's are safe.


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Old 07-23-2013, 12:31 PM   #8
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I know everyone has there difference's but I love nitrous

Here is a 100 shot I did on a N/A M3 years ago using a lot of the items your looking for. http://www.e46fanatics.com/forum/sho...d.php?t=691685

I know it's an M3 but all in all it was fun.

Doing your own work is the best part and you learn so much more from it.

Good luck
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Last edited by Sweed; 07-23-2013 at 12:31 PM.
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Old 07-23-2013, 03:04 PM   #9
SK330ci
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OP,

if you have a list of potential parts for this build i/we would like to see it.


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Old 07-23-2013, 06:29 PM   #10
330Cole
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Thanks Sweed!

And yes, I will post some links in a little bit


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Old 07-23-2013, 06:55 PM   #11
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NX Video

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Old 07-23-2013, 09:10 PM   #12
330Cole
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http://www.amazon.com/gp/aw/d/B00470...=sr_1_1&sr=8-1

http://www.dynotunenitrous.com/store...p?idproduct=17

http://www.dynotunenitrous.com/store...p?idproduct=67

http://www.nitrousexpress.com/15718-...-manifold.html

And more afr gear, don't know yet because I might run an lc1 for the cats



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Old 07-23-2013, 11:54 PM   #13
330Cole
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Edit

The nitrous express cutoff switch link should have been this http://m.summitracing.com/parts/nos-...FUqk4AodU3YAog


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Old 07-24-2013, 10:26 PM   #14
330Cole
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longtube intake just came in, have to replace fender liner before install (old one got ripped off), and my also swap out the no-name dry media filter it came with
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Old 03-11-2014, 10:34 PM   #15
330Cole
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So to bring this back from the dead, I have the intake and headers installed, and an innovative lc1 to take care of the check engine light from not having cats, and can also be used to display afr's, the person I bought it from even included the necessary gauges. Just some more electronics and the kit itself and I should be good to go. I want to get a compression and leakdown test before anything though, and possibly a little attention to the fuel system just in case.


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