Max output 128i?

[Thirdkelley]

I have a 2011 128i, no internal modification, just exterior plastidip jobs over the year and a golf tee mod (lol). I was going to look into DISA manifold w/evolve tune +eurobox intake... however, I was considering the price per hp and may just sell it and throw down 5k extra for n54 135/335. I know a bunch of people have the 3 stage manifold + other bolt ons. Wondering what the absolute max output anyone has achieved on a 128i? Possible cost? and any other details!
Thanks!

[Taskmaster]

Well, I haven't seen enough from Evolve to tell you to pay money for it.

But what works -
3 stage manifold -I've seen 15 to 25whp gains with tune. I picked mine up for $325 shipped including bot of the DISAs. I am ording gaskets tonight.

Hacked box/AFE Stage 2 SI - My hacked box setup was worth a solid 2whp over the K&N stock box - AFE's intake was 3whp over the hacked box. I haven't tested the euro intake to comment. Considering they are almost the same price, I would go AFE unless you can pick up a Eurobox for cheaper. $300+ depending on setup.
Dinan is currently having a sale on the E90 ram intake (not available for the E82), but you can make your own for cheaper.

Headers - You'll need tuning for them, and I think that Active Auto and OE will have the most experience with this one, but SuperSprints are proven performers with AFEs looking promising (and are also cheaper) Not a lot of data out there. Mapleridge headers are also an option, and while ugly have shown 10whp+ gains.

Tune- I gained about 4whp peak with my previous OE tune. OE has sent me an updated file, which I will test - but it's pointless when we are talking about 3 stage manifolds being installed soon. AA is the most proven on these platforms and have the most dynos out there - solid choice. It doesn't hurt they are less expensive than some of the other options.

Exhaust - Expensive, but it doesn't have to be. A Custom header-back exhaust from any exhaust shop could cost you $500 or less and you could remove the secondary catalyst for the most power.

Expect upwards of 35+whp over stock. And expect to pay - Less than $3000 depending on labor cost and mods chosen.

[631twentyeighteye]

I'm currently at 225rwhp dyno proven. stock pull was 198rwhp. mods are in my sig but Axiom covered it pretty well. I'm running the Mapleridge headers Axiom spoke of.

Don't expect a (cold air) intake to give you more than a few HP if any at all. I received zero benefit from my Injen intake other than a nice sound. Many will tell you an open intake like this will heatsoak, but while that may be large factor on a dyno i don't think it's nearly as big of a deal when you're actually moving due to all of the air being fed through the kidneys directly to the intake.

Best bang for your buck is the DISA manifold+ a tune of your choice. I got my manifold for under 300 shipped with both DISA motors, plus 50 bucks for the misc hardware associated with it.

That being said, if you're just looking for straight line speed the 128i(n52 in general) isn't for you.

[andrey_gta]

Not to be that guy but
e90Post has a large thread about this

[CHUUK]

Having just recently purchased a new 2013 128i with N51 and still digesting all the info on this forum, I've been wondering... if N51 has the DISA manifold stock, is the performance already slightly better than N52? Or are other "doins-a-happenin" elsewhere in the N51 that 'equalize' performance so there are no differences in product?

[631twentyeighteye]

Originally Posted by CHUUK

Having just recently purchased a new 2013 128i with N51 and still digesting all the info on this forum, I've been wondering... if N51 has the DISA manifold stock, is the performance already slightly better than N52? Or are other "doins-a-happenin" elsewhere in the N51 that 'equalize' performance so there are no differences in product?

n51 is the emissions restricted version of n52. Basically the motor has slightly less compression but has the DISA to compensate. Someone is currently working on a tune with Evolve to try and get the max power out of the N51. Evolve claims that its very similar to the n52 in the 125i(engine tune wise) which means they will probably be able to get similar power out of it compared to the n52. That thread is located HERE( http://www.1addicts.com/forums/showthread.php?t=927489 )

Keep an eye on some of the threads in here and you'll find a lot of useful info. The one good part about the 128i section is that there's few of us, so the information is very useful(not information LOL) and rumors are killed off quickly. We're a factual helpful bunch in here

[CHUUK]

Originally Posted by 631twentyeighteye

n51 is the emissions restricted version of n52. Basically the motor has slightly less compression but has the DISA to compensate.

Ah... that's it, thanks sir! Have been anxiously awaiting further from that thread.

Cheers!

[TheSt|G]

N51 should ultimately just be less sadly.

Threads like these remind me that I need to get on a dyno. Ohh to have more time.

[Fume]

Originally Posted by TheSt|G

N51 should ultimately just be less sadly.

Threads like these remind me that I need to get on a dyno. Ohh to have more time.

Yes. The N51 has less compression and the N52 can get the DISA aftermarket to remove that advantage but theoretically the N51 should be able to get pretty close. The main problem seems to be that there's just less N51 cars than N52 so there's less incentive to focus on the N51 aftermarket so I get the sense it's easier to get N52 to their limit compared to an N51.

Sometimes it sucks to live in a SULEV state but at least WA seems like they decided to stop emissions testing on newer cars so that's something.

[Obioban]

Originally Posted by TheAxiom

Well, I haven't seen enough from Evolve to tell you to pay money for it.

But what works -
3 stage manifold -I've seen 15 to 25whp gains with tune. I picked mine up for $325 shipped including bot of the DISAs. I am ording gaskets tonight.

Hacked box/AFE Stage 2 SI - My hacked box setup was worth a solid 2whp over the K&N stock box - AFE's intake was 3whp over the hacked box. I haven't tested the euro intake to comment. Considering they are almost the same price, I would go AFE unless you can pick up a Eurobox for cheaper. $300+ depending on setup.
Dinan is currently having a sale on the E90 ram intake (not available for the E82), but you can make your own for cheaper.

Headers - You'll need tuning for them, and I think that Active Auto and OE will have the most experience with this one, but SuperSprints are proven performers with AFEs looking promising (and are also cheaper) Not a lot of data out there. Mapleridge headers are also an option, and while ugly have shown 10whp+ gains.

Tune- I gained about 4whp peak with my previous OE tune. OE has sent me an updated file, which I will test - but it's pointless when we are talking about 3 stage manifolds being installed soon. AA is the most proven on these platforms and have the most dynos out there - solid choice. It doesn't hurt they are less expensive than some of the other options.

Exhaust - Expensive, but it doesn't have to be. A Custom header-back exhaust from any exhaust shop could cost you $500 or less and you could remove the secondary catalyst for the most power.

Expect upwards of 35+whp over stock. And expect to pay - Less than $3000 depending on labor cost and mods chosen.

I think it's pretty crazy to suggest that anyone has more experience tuning header/DISAed n52's than evolve. In england they have 125i's and 130i's, both of which are 3 stage disa (post tune in the case of the 125i)-- meaning every header car Evolve tunes in their country is a header/3 stage DISA car.

When you further consider that Evolve is the ONLY SuperSprint dealer in England, you might realize... they have a lot of experience with header/3 stage DISA N52s . I can't imagine going any other way, if I were choosing a tune.

I bet active an OE have done less than 10 header/3 stage cars each.

[Dackelone]

I think 270 to 280 Hp(at the crank) is about what you can expect out of the 128i NA engine. Of course you can get more power... but your gonna have to spend so much to get those last few ponies.

[Taskmaster]

Originally Posted by Obioban

I think it's pretty crazy to suggest that anyone has more experience tuning header/DISAed n52's than evolve. In england they have 125i's and 130i's, both of which are 3 stage disa (post tune in the case of the 125i)-- meaning every header car Evolve tunes in their country is a header/3 stage DISA car.

When you further consider that Evolve is the ONLY SuperSprint dealer in England, you might realize... they have a lot of experience with header/3 stage DISA N52s . I can't imagine going any other way, if I were choosing a tune.

I bet active an OE have done less than 10 header/3 stage cars each.

Hey - show me the dynos.
It's ridiculous for you to expect people to shell out $800 for 1 dyno that shows peak power LOWER than what AA's own in house Dynos as well as 3rd party dynos conducted from other members. Trust me when I say I looked extensively for Evolve tune car dynos, I personally created the dyno thread in my spare time - I found VERY few Evolve dynos, and those I did find weren't anything impressive enough for me to endorce.

We've done this song and dance before, I'm not convinced that Evolve isn't just another run of the mill tuner. Why are you so bent on endorcing them?

Here is a Challenge: FIND me Evolve tuned + header cars. Until you do, I'm going to assume it's overzealous fanboyism that you're spewing.

[Taskmaster]

I wasn't even going to bring up Evolve's poor showing on the N51 tune thread. It's been how long now, and they have nothing to show for themselves. Even the open source tablet tune gave us preliminary numbers (and 2 different dynos)

[Obioban]

Originally Posted by TheAxiom

Hey - show me the dynos.
It's ridiculous for you to expect people to shell out $800 for 1 dyno that shows peak power LOWER than what AA's own in house Dynos as well as 3rd party dynos conducted from other members. Trust me when I say I looked extensively for Evolve tune car dynos, I personally created the dyno thread in my spare time - I found VERY few Evolve dynos, and those I did find weren't anything impressive enough for me to endorce.

We've done this song and dance before, I'm not convinced that Evolve isn't just another run of the mill tuner. Why are you so bent on Endorce them.

Here is a Challenge: FIND me Evolve tuned + header cars. Until you do, I'm going to assume it's overzealous fanboyism that you're spewing.

I can meet that challenge with 3 cars, personally

My e46 M3 header/evolve tune makes 328rwhp (should be more shortly, added a Evolve intake, no internal anything, just bolt ons), e39 M5 makes 391 rwhp (evolve tune/evolve headers (made by SS)/exhaust/evolve intake), and my friends e60 M5 made 490rwhp (headers/muffler, evolve tune). Dynojet.

All three of which are evolve tune/header cars, all 3 of which are pretty exceptional results, hardly run of the mill.

[Taskmaster]

Yeah, and that's applicable to the N52 how?

I'll wait on those Evolve tuned dynos, but I'm not holding my breath. Until then, members here are better off paying for something more proven on this platform.

[Obioban]

Originally Posted by TheAxiom

Yeah, and that's applicable to the N52 how?

I'll wait on those Evolve tuned dynos, but I'm not holding my breath. Until then, members here are better off paying for something more proven on this platform.

Read your own "challenge", you said nothing about n52 .

There will be an Evolve N52 dyno soon enough-- stig is waiting for one more hardware piece and then he'll be getting dyno tuned at the same time I do (again, because new hardware and CSL based tune instead of e46 m3 based tune).

In the interim, there are evolve 130i dynos out there, which are very much 3 stage disa N52s.

[Taskmaster]

Originally Posted by Obioban

Read your own "challenge", you said nothing about n52 .

There will be an Evolve N52 dyno soon enough-- stig is waiting for one more hardware piece and then he'll be getting dyno tuned at the same time I do (again, because new hardware and CSL based tune instead of e46 m3 based tune).

In the interim, there are evolve 130i dynos out there, which are very much 3 stage disa N52s.

There are a lot of things out there, I and the majority of members haven't seen them. We have seen AA and OE's header tunes however.

I would implore people to check out all the options, ignore hype and go with products that have not only a proven track record, but ample data, before they make their purchase.

[MarkkyyMan]

I still have a "Service Engine Soon" light on my Evolve tune.

[TheSt|G]

Originally Posted by MarkkyyMan

I still have a "Service Engine Soon" light on my Evolve tune.

What was the code?

[MarkkyyMan]

Originally Posted by TheSt|G

What was the code?

29F4 and 29F5

[TheSt|G]

Originally Posted by MarkkyyMan

29F4 and 29F5

Looks like CAT inefficiency codes, did you mention that you wanted the sensors turned down? What did they say?

[MarkkyyMan]

Salman knows the codes, I've sent him that same screen shot. He just cannot get the ECU to accept the changes he is making to the tune. He is trying to keep the OBDII in a ready state.