[Asofi]

I currently have 135i with a JB4, DCI, and catless downpipes. I'm looking to add the meth X kit that works with the JB4 pretty well from what I understand.

Is it just as simple as installing the kit and switching to map 3? Or would map 7 be more appropriate?

Also, I've seen many people say that running meth is safer than not running it because it lowers IAT, is that true?

[Brey335i]

I would wait and get the new underhood meth kit from BMS.

[Asofi]

Originally Posted by Brey335i

I would wait and get the new underhood meth kit from BMS.

It's the same kit the only difference is where you put the tank. If you do the under the hood doesn't that negate the use of your windshield sprayers?

This is the kit I'm referring to

http://www.n54tuning.com/index.php?_...d&productId=85

[Naptime]

Originally Posted by Asofi

It's the same kit the only difference is where you put the tank. If you do the under the hood doesn't that negate the use of your windshield sprayers?

This is the kit I'm referring to

http://www.n54tuning.com/index.php?_...d&productId=85

That's a pretty good kit from what I've read.

If you want to keep your windshield washers functional, that is a great choice.

With regards to setting up meth, I know Terry created a pretty detailed thread on N54tech. Look at the stickies in the forced induction subforum.

[rmdvrs]

Originally Posted by Asofi

It's the same kit the only difference is where you put the tank. If you do the under the hood doesn't that negate the use of your windshield sprayers?

This is the kit I'm referring to

http://www.n54tuning.com/index.php?_...d&productId=85

It all depends on if you still have your warranty. The new kit is easier to install and uninstall when you need to visit the dealer. You have to run the line from the trunk to the engine with the other kit. The washers still works with the new system it just will spray meth instead which will clean your windows even better but your wasting it too. The new kit is awesome. Meth does lower IAT's, especially when the weather gets hot.

The two meth maps are map 3 and 6. Terry made it to set it and forget it but you can adjust parameters if you want but I wouldn't if you don't have experience. After you install it just do a few logs and send it to Terry and see what he says.

[Irishace]

I am running the FSB + Solenoid integrated JB4 meth kit and it is flawless. You can run Map 3 or Map 6. You can adjust meth additive for different boost targets.

My experience is that meth is delivered beautifully, far superior to the old flow sensor setup I had.

[Mike@N54Tuning.com]

Originally Posted by Asofi

It's the same kit the only difference is where you put the tank. If you do the under the hood doesn't that negate the use of your windshield sprayers?

This is the kit I'm referring to

http://www.n54tuning.com/index.php?_...d&productId=85

Thats the most popular kit, and has everything you need for full JB4 integration You set it to map3 and the JB4 ups the boost based on meth flow.

Mike

[Jonny550]

IMHO the WW kit wont be that bad if your using 50/50 meth/water. Just because it wont harm the paint. But if you go a lil bit higher then it might do some damage.


FWIW I tested the flammability of different mixtures from 90/10 to 50/50 and it would be highly flammable until i hit 50/50 then it would not ignite.

[Asofi]

Originally Posted by rmdvrs

It all depends on if you still have your warranty. The new kit is easier to install and uninstall when you need to visit the dealer. You have to run the line from the trunk to the engine with the other kit. The washers still works with the new system it just will spray meth instead which will clean your windows even better but your wasting it too. The new kit is awesome. Meth does lower IAT's, especially when the weather gets hot.

The two meth maps are map 3 and 6. Terry made it to set it and forget it but you can adjust parameters if you want but I wouldn't if you don't have experience. After you install it just do a few logs and send it to Terry and see what he says.

Are you being serious? Isn't meth highly flammable and corrosive? I wouldn't want to be a fireball cruising down he road. Plus I'd be worried about my paint and weather stripping.

[JB335]

Originally Posted by Asofi

Are you being serious? Isn't meth highly flammable and corrosive? I wouldn't want to be a fireball cruising down he road. Plus I'd be worried about my paint and weather stripping.

Better stop using gasoline as well.

[Mike@N54Tuning.com]

Originally Posted by Asofi

Are you being serious? Isn't meth highly flammable and corrosive? I wouldn't want to be a fireball cruising down he road. Plus I'd be worried about my paint and weather stripping.

-40 degree washer fluid is almost 40% meth anyway and people run that for years at a time without issue. Just use a 50/50 mix and you'll make a ton of power with little worry.

Mike

[Asofi]

Originally Posted by Mike@N54Tuning.com

-40 degree washer fluid is almost 40% meth anyway and people run that for years at a time without issue. Just use a 50/50 mix and you'll make a ton of power with little worry.

Mike

How much power do you sacrifice by using a 50/50 mix versus 100% meth?

[rmdvrs]

Originally Posted by Asofi

How much power do you sacrifice by using a 50/50 mix versus 100% meth?

Like Mike and everyone else said, windshield washer fluid is actually about 40% meth so you will be fine. Now I have to ask you if your being serious? 100% meth, the most you will want to run is going to be around 70/30 depending on your mods. I would never run 100%, now that's dangerous.