[007_e350]

Hey folks, we have the x5d 2012, m57 ... About 10k miles ago we took a trip to Toronto and got all the goodies from Jarek etc .. I paid him of for stage 2.5 but he suggested to custom down tune it to 2.25 for reliability and since x5 is a bigger vehicle EGTs would be higher at 2.5 which is mostly for 335d...
All that said and done I need more power

Andy from dallas will charge 300 bucks and get 2.8 .. Do you guys suggest it? Am I looking to damage something in the truck ? It has 54k miles on it, abc deletes, race pipe installed .. Reliability is very important because we haul kids and Chicago winter is brutal

[JTC1]

I don't know anyone with an X5 that is doing it, but if high EGTs are a concern with the 2.5 or 2.8 you could always run water/meth inj., plus you'd be adding a few more horses with that alone. I think an upgraded intercooler may be in order also.

[ASBSECU E93]

Contact BPC. They are actively working on a X5d at this time.

[BB_cuda]

Jess has a pretty healthy X5 I've heard but he isn't hauling kids. His winter is likely as bad or worse than yours (upstate NY).

Agreeing with JTC1, Meth + better IC makes sense if you must have more power. Just the meth alone might be enough power though. Do you pull anything? That would be what would create higher EGT.

[007_e350]

Originally Posted by BB_cuda

Jess has a pretty healthy X5 I've heard but he isn't hauling kids. His winter is likely as bad or worse than yours (upstate NY).

Agreeing with JTC1, Meth + better IC makes sense if you must have more power. Just the meth alone might be enough power though. Do you pull anything? That would be what would create higher EGT.

I wanna stay away from meth, but fmic is on the list, it's so dann hard to find one for this truck though! I have vrsf 7" one on the 335i that's a great product but I don't know if it will fit... we dont have a tow hitch and neither do I plan to tow anything, I don't know why Jarek would tune down the 2.5

[ChiDiddy]

At that point, I'd suggest just buy a faster car. Ur SUV is a family mover, no need for more power than it already has really. Esp when reliability is concerned.

[Barmlot]

Don't be afraid of meth. You get the power that you are looking for and it should help keep it clean which theoretically helps reliability. It's really not as complicated as everyone makes it sound either.

[335stoner]

Originally Posted by ChiDiddy

At that point, I'd suggest just buy a faster car. Ur SUV is a family mover, no need for more power than it already has really. Esp when reliability is concerned.

I was going to say the same thing!

if comes to the family and safety leave it as it is and be happy with what you have.

you can always buy a side car and do what ever the heck you want to do to it and not worry about the wife and kids being stuck on the side of the road.

from my own personal experience it is best to have a "hotrod" and not drive it everyday. my last truck was a Toyota Xrunner I installed a turbo and all the extra junk.. I started to feel it was not fast enough and upped the boost.. then that wasn't enough.. it was in need of some large up keep due to all the mods, so I bought a side car... I then started to appreciate the truck more and my need for it needs more was gone because driving a 70hp civic put me back in check

[dmanb2b]

Originally Posted by 007_e350

I don't know why Jarek would tune down the 2.5

I run JR stage 2 on my 335D. Unless you go with a 2.8, IMO there is not much difference between a 2 and a 2.5, so the fact that you are at "2.25", quite frankly I doubt you'd notice the difference vs a "full" 2.5.

As others have said, an X5D is plenty fast and safe as a family hauler in stock form. The tune should be viewed as a reliability upgrade for your situation. Leave the speed and power factor for the "fun" car.

[007_e350]

I have a fast car .. question remains what can hurt if I go 2.8 ? the harmonic pulley & Water Pump will still need to be replaced regardless of tune
Meth is out coz I saw someone catch fire due to that ****

hows a jbD with 2.25

power hungry yeah!

[335dsl]

Kinda of ridiculous to be asking if a 2.8 tune will be a reliability issue. Also, jbd with a tune isn't recommended.

[Torqu3]

Originally Posted by 335dsl

Kinda of ridiculous to be asking if a 2.8 tune will be a reliability issue. Also, jbd with a tune isn't recommended.

Well it's counter-intuitive. A high powered tune basically screams extra wear, and more chance for failure. On the other hand, everyone running 2.8 is not having any issues, and the deletion of emissions components significantly increases reliability. I understand why people are skeptical.

[The_Wood]

Could be a random/n00b question, but who's Andy from Dallas? I'm in Dallas and would love to link up/have a resource for the D's here in town!

[Torgus]

Originally Posted by ChiDiddy

At that point, I'd suggest just buy a faster car. Ur SUV is a family mover, no need for more power than it already has really. Esp when reliability is concerned.

This.

The faster you make it the less reliable and more expensive the ownership of the vehicle becomes.

If you want to go fast you can buy an fully loaded 07 335i for 7k. Spend 7k in mods and you will be plenty fast.

[335dsleeper]

Originally Posted by 007_e350

I have a fast car .. question remains what can hurt if I go 2.8 ? the harmonic pulley & Water Pump will still need to be replaced regardless of tune
Meth is out coz I saw someone catch fire due to that ****

hows a jbD with 2.25

power hungry yeah!

50/50 meth isn't flammable. In my opinion, they'd be no reason to run more than 50/50 in an X5. I have a BPC stage 2.5 tune and haven't seen any difference in EGTs. I don't necessarily ring it out through all the gears though.

I haven't installed water injection yet but, I have enough stuff in the barn to install and plan on it soon. 20-40whp, and a bunch of torque for next to nothing and it helps with CBU... seems like a no brainer.

I don't see an intercooler being necessary. I'd install water injection before I'd mess with an custom intercooler install. In my 335d, I made 393 and 611 to the tires with stock intercooler, air box and water/meth.

[Torgus]

Custom IC should flow better than stock especially when you are pushing 2x the air through it. So there will be gains based on flow on top of the IC cooling the intake charge better. I do agree Meth will be easier to install as no one makes a IC kit for the X5 as far as I know.

50/50 is still flammable or so says the internet. I run 50/50 in my car but i've never tried to set it on fire. Easy enough to test but I have no reason not to believe the internet.

[335dsleeper]

Of course it should flow better than stock but is it needed? What is to be gained HP vs $? OP, I recommend logging CACT and EGT before I'd go with a custom intercooler, again considering the HP vs $ ratio. If the OP is doing prolonged pulls where he's seeing a significant increase in IATs and if he has 1k + burning a whole in his pocket... sure, go ahead. I haven't seen the data that suggests it's needed based on my experience with my BPC Tuned X5.

2 x the air flow seems like a lot. No?

You are correct, the internet states 50/50 is flammable. That said, a lot of washer fluids are considered flammable according to their MSDS, many with far less than 50/50 but, just about everyone has washer fluid in their car.

Here are a few videos of 50/50 flammability testing. Of course one could argue the testing standards in these videos but... interesting nonetheless.

OP, best of luck with whichever route you chose.

Originally Posted by Torgus

Custom IC should flow better than stock especially when you are pushing 2x the air through it. So there will be gains based on flow on top of the IC cooling the intake charge better. I do agree Meth will be easier to install as no one makes a IC kit for the X5 as far as I know.

50/50 is still flammable or so says the internet. I run 50/50 in my car but i've never tried to set it on fire. Easy enough to test but I have no reason not to believe the internet.

[Torgus]

BPC seemed to get great gains with their IC: http://www.e90post.com/forums/showthread.php?t=1377806 If you can buy one and install it yourself it's probably worth it.

but again meth is easier to install most likely.

[335dsleeper]

Yup, and for $1200. HP vs $

Interesting enough, many people have made more power and torque through the stock intercooler.

That said, no one is arguing the benefit of a larger intercooler, especially on longer, multiple gear pulls or on a dyno where the airflow though the intercooler is different than on the road. On the road and at the power level you cited, the dyno gains might be negated on the road. This is why I suggest the OP log his CACT and EGT. That's the only way to see what's happening and to determine if the cost is worth the effort to the OP.

The OP could install a simple meth kit and run 50/50 mix or could run -20 washer fluid. At any rate, the cost for WI is less and there are added benefits. Not to mention many pick up close to, if not more than 40whp with 50/50.

Originally Posted by Torgus

BPC seemed to get great gains with their IC: http://www.e90post.com/forums/showthread.php?t=1377806 If you can buy one and install it yourself it's probably worth it.

but again meth is easier to install most likely.