Plug and play mod that has proven to make the 128i N52 the fastest??

[bazil769]

Confidence restored...spot on guys

[SNOOPYJC1]

I am looking to improve the power of my 128 and was wondering where you guys picked up the manifold??

Snoopy

[mechavore884]

LOL Good luck HAHAH DISA manifolds can be found in junkyards and some ebay deals...but they are HARD to come by

[Fume]

Originally Posted by mechavore884

LOL Good luck HAHAH DISA manifolds can be found in junkyards and some ebay deals...but they are HARD to come by

I never understood this. SULEV cars have the DISA stock so they must be selling replacement parts, no? Or do they not sell it separately? I'm guessing it'll be way more expensive than getting it in a junkyard.

[631twentyeighteye]

I got mine on car-part from a SULEV n51 328xi for $280 shipped with both DISA motors, looked fairly new when i got it too. There pretty easy to find if you know what to search for.

[TheSt|G]

Originally Posted by Fume

I never understood this. SULEV cars have the DISA stock so they must be selling replacement parts, no? Or do they not sell it separately? I'm guessing it'll be way more expensive than getting it in a junkyard.

Buying it new makes it a $1k+ project instead of a $250 project.

[chris82]

Originally Posted by mike@x-ph.com

I would like to ask you a question, and please do not take it the wrong way because i sincerely would like to know the answer.
I hear a lot of people saying they want to more power out of their N52 engines ( not just PBX , but intake, manifold and headers) but they would not just buy a N54 or N55 even though it is cheaper and has more power.
May i know the reason behind that? If it is reliability, why are you aiming for higher power than the N52 was meant for?

Thought I'd chime in here.

What draws me to this engine is sound and linear power delivery. Those two things aren't coming from any turbo motor I know of. My bro has a JB4 335i which I can drive if I need to. I drove it for a week one time and It's really great, you can stomp on basically any car on the road just putting your foot down in the current gear lol and I am jealous of that aspect of it. However, I think my car is bit more fun. In all seriousness it's doing about 260hp and that combined with ~3100 curb weight makes for a really fun and balanced car. It's good enough and fast enough for me to the point where buying a 135 just so I can go faster is not worth the trade off of the other aspects I enjoy. The fact that I've driven the 335i enough to know what its about helps a little too

And I'm also more of a suspension guru at the moment.

[TheSt|G]

Originally Posted by chris82

And I'm also more of a suspension guru at the moment.

This car has such spectacular potential in this area it is almost a shame that such big power mods exist for the 135i. Overshadow what is really the E82's greatest strength.

[SflBimmer8484]

We recently just put down 249 whp on a customers 128 with our headers and software combo

[chris82]

Originally Posted by Andrew@ActiveAutowerke

We recently just put down 249 whp on a customers 128 with our headers and software combo

on your low reading dyno!?

[631twentyeighteye]

Originally Posted by Andrew@ActiveAutowerke

We recently just put down 249 whp on a customers 128 with our headers and software combo

Off the shelf tune? Adaptation period? 3 stage manifold? I put down 223/207 on a mustang dyno which would've been about 230-240 on a dynojet.

Good news nonetheless

[SflBimmer8484]

Originally Posted by chris82

on your low reading dyno!?

Dynojet. We are remote tuning it. I posted the dyno's earlier before the header which made 230whp.

[Taskmaster]

Originally Posted by Andrew@ActiveAutowerke

Dynojet. We are remote tuning it. I posted the dyno's earlier before the header which made 230whp.

Please post the new one!

[TheSt|G]

And people laughed when I said this is a 250whp capable engine.

[chris82]

Originally Posted by TheSt|G

And people laughed when I said this is a 250whp capable engine.

Well looks like we're not there yet, still 1hp short, sorry LOL

[SflBimmer8484]

Originally Posted by chris82

Well looks like we're not there yet, still 1hp short, sorry LOL

We are still working on the tune to keep the power up at high rpm. Ill post it when I have it

[bazil769]

I was told by mike@x-ph.com seller of the open flash tablet here on the forum through PM that i can gain 80whp on my 128i E88 without any mods. What do you guys think?

[Kgolf31]

Originally Posted by bazil769

I was told by mike@x-ph.com seller of the open flash tablet here on the forum through PM that i can gain 80whp on my 128i E88 without any mods. What do you guys think?

Ummm, I call BS.

[mrvco]

Originally Posted by bazil769

I was told by mike@x-ph.com seller of the open flash tablet here on the forum through PM that i can gain 80whp on my 128i E88 without any mods. What do you guys think?

Probably a typo... 8whp makes more sense.

[Bimmer-Bob]

Originally Posted by bazil769

I was told by mike@x-ph.com seller of the open flash tablet here on the forum through PM that i can gain 80whp on my 128i E88 without any mods. What do you guys think?

Run away from that dude, lol.

It's pretty simple, really. The N52 was produced in both high output (OL) and lower output (UL) versions. Per BMW's own documentation (see attached), the difference comes down to the fact that "the “UL” engine will have no DISA and will have changes in the DME programming and exhaust system." So throw in a DISA manifold, some headers, and flash the DME, and you effectively undo the detuning that BMW did. I don't believe that there is a bigger power upgrade for this engine, nor do I believe there is much HP left on the table afterwards.

Some folks say the DISA units are hard to come by used - I can only speak to my experience, but I found a very good example (only 5K miles) the first week I looked. Definitely worth the look because, as Stig noted, a new unit will run you 4x as much. There are only two headers I would consider running on my car at this point - Supersprints (not cheap) and Active's new set (surprisingly affordable). I would run an Active or an Evolve tune. I think Active is easier to deal with in the US, but YMMV. I personally am very happy with my AA tune, and plan to go back to them once I have headers installed.

[bazil769]

Lol.Just wanted to share that info. Thanks Bimmer-Bob.

[Macieklojewski]

Can someone post a link for where to buy the stage 3 manifold, and if I were to do a tune, which one would you guys recommend?