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      08-20-2012, 02:46 PM   #309
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Quote:
Originally Posted by NYC6 View Post
Believe what you will but the discussion was not about weight to strength, Mg alloy make up, its about the strength of the N52 to withstand F/I. The head guy at BMW says no. Its really that simple. You can talk to you're blue in the face about heat treatment and all buts its not going to change that fact. Were talking to blocks here that have already been produced not what ifs. And when the production manager for all BMW I6 engines says the N52 is not suitable, its fact!

Why they went to an all aluminum block, I have my opinion about strength of the blocks and Im not thinking cost is an issue at all. BMW put the Mg/Al block in many thousands of its lower cost models. If it werent an issue, Mg/al blocks would be used in all the powerful more expensive models, M division for one. The fact that the Mg/Al block wont be in any BMW models next year speaks volumes also. You can come to your own conclusions, I did.
No, I think it is all about cost, since they did not want to devote the time and money needed to design a Mg-Al block that could handle the higher stresses of the F/I engines. It costs a lot less to use the old tried and true design of Al block with cast iron liners. They went to the Mg-Al design because it had the strength and weight needed to handle their current I-6 designs at the time. When they switched to F/I, they took the easier/cheaper engineering route to solve the block strength problem, most likely to offset the added cost of the T/C.
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      08-20-2012, 02:57 PM   #310
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You certainly are entitled to your own opinion but as you said previously, its "pure conjecture".
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      08-20-2012, 03:09 PM   #311
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You certainly are entitled to your own opinion but as you said previously, its "pure conjecture".
And so are you.
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      08-20-2012, 03:10 PM   #312
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Indeed
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      08-20-2012, 07:27 PM   #313
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Quote:
Originally Posted by TheSt|G View Post
Well, when you car breaks less it's hard to have tons of threads complaining about the engine putting us into limp mode.

We could always start a 128i chat thread(even use this one) and just post daily thoughts/ideas/whatever. I'll kick it off.

I ordered SuperSprint's 125i headers which work on the 128i. Gives us proper equal length headers and deletes the primary cat, but we still have the secondaries so it should be fine. Also sourced a 330i intake manifold with the DISA valves off a wrecked E90 330i. And I just picked up an AFE stage 2 intake in the FS section.

Should have some pretty good power soon.

Considering getting the headers properly heat coated(which generally yields even more power).
please post a video. that sounds awesome.
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      08-21-2012, 07:59 PM   #314
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was looking at the car today during its wash, I think were fortunate not to have a spoiler, the natural curve is quite nice. ( I guess this is color dependent view)

Maybe CSL trunk is the next best thing.
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In-progress: e46 m3 trans mnt, e36M lip Wishlist: m3 susp, n55 eng mnt, headers, LSD, finn dif e60


"The 1-series is the last car that BMW engineered before the Germans, as a car-making culture, fell out of love with driving." - R&T 2013 135is
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      08-21-2012, 11:27 PM   #315
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Quote:
Originally Posted by andrey_gta
was looking at the car today during its wash, I think were fortunate not to have a spoiler, the natural curve is quite nice. ( I guess this is color dependent view)

Maybe CSL trunk is the next best thing.
I badly want a spoiler for my hatch, improves the look tons
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      09-07-2012, 09:28 AM   #316
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Quote:
Originally Posted by flinchy View Post
I badly want a spoiler for my hatch, improves the look tons
i think jbspeed or some other asian carbon company has spoilers for e87/81
i tend to like spoilers for hatches that have a 1 inch gap for air sort of liek this AC S spoiler
http://www.ppcgb.com/uploads/images/...13187110bi.jpg

////


Sourcing a DISA intake for the 128i excited
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128i Sport 6MT converted to Euro 130i spec, tuned by evolve ~220 whp 207 wtq(ft-lb) SAE
In-progress: e46 m3 trans mnt, e36M lip Wishlist: m3 susp, n55 eng mnt, headers, LSD, finn dif e60


"The 1-series is the last car that BMW engineered before the Germans, as a car-making culture, fell out of love with driving." - R&T 2013 135is
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      09-07-2012, 09:04 PM   #317
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Quote:
Originally Posted by andrey_gta View Post
i think jbspeed or some other asian carbon company has spoilers for e87/81
i tend to like spoilers for hatches that have a 1 inch gap for air sort of liek this AC S spoiler
http://www.ppcgb.com/uploads/images/...13187110bi.jpg

////


Sourcing a DISA intake for the 128i excited
i prefer the BMWP style, smooth ramp.
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      09-18-2012, 04:00 AM   #318
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Quote:
Originally Posted by andrey_gta
Quote:
Originally Posted by flinchy View Post
I badly want a spoiler for my hatch, improves the look tons
i think jbspeed or some other asian carbon company has spoilers for e87/81
i tend to like spoilers for hatches that have a 1 inch gap for air sort of liek this AC S spoiler
http://www.ppcgb.com/uploads/images/...13187110bi.jpg

////


Sourcing a DISA intake for the 128i excited
I'm a fan of subie spoilers

Because racecar! Only the bmwp and bmw aero look good imp, neither of which provide meaningful downforce..
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      09-21-2012, 12:19 AM   #319
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Just installed my DISA manifold.
6 hours in total. The items connected to the bottom are the trickiest and took 2 hours to solve. More on that sometime later. Everything went back in quick.

Results?
I love the boost from 4-6k. Will see how the DME adapts, dont think i need a tune so soon. I always felt the car was Jakyl and Hyde after 4k.
Now it truly is. I guess for track a tune is needed vs just a manifold.

I wonder if stock 128i tune is different from 328i, maybe it will adapt different.

EDIT: DISA update: 1 tank of gas later, and the best part is the low end torque for traffic/ street driving. Fuel econ is improved by about 0.5 l/100. The "Flat spot" is a non issue with 6mt & I don't notice it unless I am looking for it.

FYI
I posted about Magnaflow direct replacement catted headers/exhaust manifold in the e90post n52
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128i Sport 6MT converted to Euro 130i spec, tuned by evolve ~220 whp 207 wtq(ft-lb) SAE
In-progress: e46 m3 trans mnt, e36M lip Wishlist: m3 susp, n55 eng mnt, headers, LSD, finn dif e60


"The 1-series is the last car that BMW engineered before the Germans, as a car-making culture, fell out of love with driving." - R&T 2013 135is

Last edited by andrey_gta; 09-24-2012 at 07:59 AM.
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      09-23-2012, 09:08 PM   #320
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What a day at the threads.
First, I learn that I've purchased a "chick" car and now this.

I'm going to go buy a Happy Meal.
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      09-24-2012, 07:54 AM   #321
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Quote:
Originally Posted by Isdaako View Post
What a day at the threads.
First, I learn that I've purchased a "chick" car and now this.

I'm going to go buy a Happy Meal.
hah, just debadge it and upgrade the suspension over time to enhance the "chick car", after all you bought it for your self.

If you ever need any power, just find some curvy roads and you will forget about it.
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128i Sport 6MT converted to Euro 130i spec, tuned by evolve ~220 whp 207 wtq(ft-lb) SAE
In-progress: e46 m3 trans mnt, e36M lip Wishlist: m3 susp, n55 eng mnt, headers, LSD, finn dif e60


"The 1-series is the last car that BMW engineered before the Germans, as a car-making culture, fell out of love with driving." - R&T 2013 135is
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      09-24-2012, 03:07 PM   #322
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As of a few days ago my 128 comes with the best possible option, not available at any price. It will not make it faster or look more aggressive. It's paid off!
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      09-24-2012, 07:53 PM   #323
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Quote:
Originally Posted by andrey_gta View Post
Just installed my DISA manifold.
6 hours in total. The items connected to the bottom are the trickiest and took 2 hours to solve. More on that sometime later. Everything went back in quick.

Results?
I love the boost from 4-6k. Will see how the DME adapts, dont think i need a tune so soon. I always felt the car was Jakyl and Hyde after 4k.
Now it truly is. I guess for track a tune is needed vs just a manifold.

I wonder if stock 128i tune is different from 328i, maybe it will adapt different.

EDIT: DISA update: 1 tank of gas later, and the best part is the low end torque for traffic/ street driving. Fuel econ is improved by about 0.5 l/100. The "Flat spot" is a non issue with 6mt & I don't notice it unless I am looking for it.

FYI
I posted about Magnaflow direct replacement catted headers/exhaust manifold in the e90post n52
Andrey ! I just noticed your message ! It is pretty interesting. I guess you are one of the rare if not the only 128i owner who installed a Disa manifold.
Did you post another thread about the install or a DYI ?
where are you planning to get a tune ?
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      09-24-2012, 08:16 PM   #324
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Quote:
Originally Posted by ivan-128i View Post
Andrey ! I just noticed your message ! It is pretty interesting. I guess you are one of the rare if not the only 128i owner who installed a Disa manifold.
Did you post another thread about the install or a DYI ?
where are you planning to get a tune ?
I may be, but its very well documented mod. The best description is of the Z4 on zpost who did the DIY, everything feels more angry and easily noticed more if you reset the throttle map.

For DIY I followed the Z4 manifold swap on zpost, I could append that great DIY with some tips for 128i. There are areas of surprise attached to the bottom of the manifold that require Torx 30 or to unclip the plastic lid of the box and be careful. I didnt disconnect the strut tower brace.
Step 1 is to find an X3(I got this one), x5, 530i, 330i or z4 3.0si manifold.
Step 2 is to take it apart, remove all sensors and DISA
Step 3 clean it & rinse it. Water & soap
Step 4 connect one DISA at a time. Turn on car and see that it closes when idle

Tune, lol 6mt is my tune I dont see the need for one right now. I should dyno to see how bad that Dip is vs Xi or 328i, also to see if I need to change the intake from stock to Eurobox, AFE magnum or similar
I messaged some tuners and learning about what the x28i does with DISA.
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128i Sport 6MT converted to Euro 130i spec, tuned by evolve ~220 whp 207 wtq(ft-lb) SAE
In-progress: e46 m3 trans mnt, e36M lip Wishlist: m3 susp, n55 eng mnt, headers, LSD, finn dif e60


"The 1-series is the last car that BMW engineered before the Germans, as a car-making culture, fell out of love with driving." - R&T 2013 135is

Last edited by andrey_gta; 09-24-2012 at 09:17 PM.
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      09-24-2012, 08:47 PM   #325
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Quote:
Originally Posted by andrey_gta View Post
I may be, but its very well documented mod. The best description is of the Z4 on zpost who did the DIY, everything feels more angry and easily noticed more if you reset the throttle map.

For DIY I followed the Z4 manifold swap on zpost, I could append that great DIY with some tips for 128i. There are areas of surprise attached to the bottom of the manifold that require Torx 30 or to unclip the plastic lid of the box and be careful. I didnt disconnect the strut tower brace.
Step 1 is to find an X3(I got this one), x5, 530i, 330i or z4 3.0si manifold.
Step 2 is to clean it & rinse it. Water & soap

Tune, lol 6mt is my tune I dont see the need for one right now. I should dyno to see how bad that Dip is vs Xi or 328i, also to see if I need to change the intake from stock to Eurobox, AFE magnum or similar
I messaged some tuners and learning about what the x28i does with DISA.
Did you talked to Active Autowerk to see if they can tune DISA ?
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      09-24-2012, 08:59 PM   #326
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Quote:
Originally Posted by ulrichd View Post
As of a few days ago my 128 comes with the best possible option, not available at any price. It will not make it faster or look more aggressive. It's paid off!
NICE!! Congrats



Quote:
Originally Posted by ivan-128i View Post
Did you talked to Active Autowerk to see if they can tune DISA ?
Yes. Eurocharged, AA definitely tune for the DISA.
Other North American tuners exist, but have yet to give me clear answers or I need to contact them (Evolve, OE, ESS)
DISA works on its own too, but its not used for its best potential. However, seems that ~255 hp or ~220 whp is where their tunes top out at for x28i with DISA.

Then there is the expensive world of German tuners: MS tuning, Digi-Tec, Winter tuning, DS-motorsport, etc.
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128i Sport 6MT converted to Euro 130i spec, tuned by evolve ~220 whp 207 wtq(ft-lb) SAE
In-progress: e46 m3 trans mnt, e36M lip Wishlist: m3 susp, n55 eng mnt, headers, LSD, finn dif e60


"The 1-series is the last car that BMW engineered before the Germans, as a car-making culture, fell out of love with driving." - R&T 2013 135is

Last edited by andrey_gta; 09-24-2012 at 09:48 PM.
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      09-27-2012, 10:02 AM   #327
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Small update on DISA & no tune 1.7 gas tanks later:
Really need to get this dyno'd something good is happening, its smooth as if almost no DISA. The new torque is very welcome at stop & go conditions, something that people who have AA tune describe.

I don't think its just my perception, it could be that 128i DME map is different from e9x 328i. Especially since people have said 128i is underrated in HP/TQ rating.

Some logic:
- Dyno's we seen for 128i hint at it being a bit over 230 hp

- I saw a German grey market stock 128i dyno & tune dyno:
http://desmond.imageshack.us/Himg812...pg&res=landing
Converting from kW it is ~240 hp stock. With tune the German 128i ~277 hp. ( all gains are as most german tunes - at top end; with no DISA the increase in curve is a convex/expoential slope)

- Furthermore, the 2011 n52 x3 and 528i had DISA and were rated at 240hp.
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128i Sport 6MT converted to Euro 130i spec, tuned by evolve ~220 whp 207 wtq(ft-lb) SAE
In-progress: e46 m3 trans mnt, e36M lip Wishlist: m3 susp, n55 eng mnt, headers, LSD, finn dif e60


"The 1-series is the last car that BMW engineered before the Germans, as a car-making culture, fell out of love with driving." - R&T 2013 135is

Last edited by andrey_gta; 09-27-2012 at 01:32 PM.
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      09-27-2012, 05:29 PM   #328
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Quote:
Originally Posted by andrey_gta View Post
Small update on DISA & no tune 1.7 gas tanks later:
Really need to get this dyno'd something good is happening, its smooth as if almost no DISA. The new torque is very welcome at stop & go conditions, something that people who have AA tune describe.

I don't think its just my perception, it could be that 128i DME map is different from e9x 328i. Especially since people have said 128i is underrated in HP/TQ rating.

Some logic:
- Dyno's we seen for 128i hint at it being a bit over 230 hp

- I saw a German grey market stock 128i dyno & tune dyno:
http://desmond.imageshack.us/Himg812...pg&res=landing
Converting from kW it is ~240 hp stock. With tune the German 128i ~277 hp. ( all gains are as most german tunes - at top end; with no DISA the increase in curve is a convex/expoential slope)

- Furthermore, the 2011 n52 x3 and 528i had DISA and were rated at 240hp.
BTW, how much you paid for the manifold ?
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      09-28-2012, 07:59 AM   #329
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I should have a full n52 from a 130i for sale soon

Pity for most of you it's in australia
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      09-28-2012, 08:44 AM   #330
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Quote:
Originally Posted by ivan-128i View Post
BTW, how much you paid for the manifold ?
I used http://www.car-part.com/
Got lucky with a local yard having a car in their USA location.

Paid 300 after tax for the X3 manifold, then got 10% off because they lost it their inventory for a week. I inspected the gaskets and decided not to replace them, saving another 30-50.

Used the sensors from my original manifold to avoid any issue from the junked car. I didnt really clean the sensors, except to wipe off oil.

Cheaper than any tune lol
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128i Sport 6MT converted to Euro 130i spec, tuned by evolve ~220 whp 207 wtq(ft-lb) SAE
In-progress: e46 m3 trans mnt, e36M lip Wishlist: m3 susp, n55 eng mnt, headers, LSD, finn dif e60


"The 1-series is the last car that BMW engineered before the Germans, as a car-making culture, fell out of love with driving." - R&T 2013 135is

Last edited by andrey_gta; 10-16-2012 at 10:23 PM.
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