[Socket]

Originally Posted by Cloud9blue

yep, I was planning to do something like that incase I run into the same problem as you. But luckily, the EWG 7670 clears the hood with less than an inch to spare

7670 is a pretty snug fit
Were you able to fit a turbo blanket?
What tune did you end up running?

[Cloud9blue]

Originally Posted by Socket

7670 is a pretty snug fit
Were you able to fit a turbo blanket?
What tune did you end up running?

the hood barely closes with the turbo blanket on. but it fits thankfully. not sure if there is enough space for a 8374 if want to upgrade down the line.

car is still not running at this point, had to remake the downpipe and wastegate dump pipes due to poor fitment with the original piece. hopefully I will get it running by the end of the month.

I am still going with the Motiv boostbox at this point and hopefully they are more responsive this time around.

[Socket]

Originally Posted by Cloud9blue

the hood barely closes with the turbo blanket on. but it fits thankfully. not sure if there is enough space for a 8374 if want to upgrade down the line.

car is still not running at this point, had to remake the downpipe and wastegate dump pipes due to poor fitment with the original piece. hopefully I will get it running by the end of the month.

I am still going with the Motiv boostbox at this point and hopefully they are more responsive this time around.

Good luck with the build mate
We couldn’t get the 7670 to work with the boostbox and had to go with N54 actuator and stock boost controller.
Works really well. Getting about 16 psi atm but will push it out to 20 when we dyno tune it tomorrow
Hopefully you will have better luck with Motiv then we did
Let me know how you go

[Cloud9blue]

Originally Posted by Socket

Good luck with the build mate
We couldn’t get the 7670 to work with the boostbox and had to go with N54 actuator and stock boost controller.
Works really well. Getting about 16 psi atm but will push it out to 20 when we dyno tune it tomorrow
Hopefully you will have better luck with Motiv then we did
Let me know how you go

will do!

Looking forward to your dyno results

[thegeniusmoose]

Originally Posted by Socket

Mod 84 - Maxton Design front lip and side skirt extensions

Picked up this beautiful set of gloss black, side skirt extensions and M3 front lip from Jason at EuroDivision. (thanks mate )

Spent this weekend, fitting them up Biggest park of the job was taking off the skirts and front bumper, but once off it was pretty easy to attach the new parts. Lip fitment is perfect. Extension are about 15 mm too long so needed some trimming, but otherwise excellent

Only problem now, is the front is so low now it barely makes it out of the driveway lol.... will see how long I can keep it mint

Pics below

Pic 1 - Installing side skirt
Pics 2 & 3 - Side skirt done
Pic 4 - Front lip
Pic 5 - Installing front lip
Pic 6 - Front lip done
Pic 7 to 9 - Close up of front lip

Hey mate,

I've got the whole M3 rep kit from Euro Division on my E92 also.

Looking at the Maxton Design page, I can find your SS extensions and front lip but only under the M3 category.

Does this mean Euro Divisions (and maybe even MARS) "Made for genuine M3 only" parts actually do fit?

Thanks

[Cloud9blue]

Originally Posted by Socket

Good luck with the build mate
We couldn’t get the 7670 to work with the boostbox and had to go with N54 actuator and stock boost controller.
Works really well. Getting about 16 psi atm but will push it out to 20 when we dyno tune it tomorrow
Hopefully you will have better luck with Motiv then we did
Let me know how you go

btw, here is my journey with the build. Definitely not a painless one!

http://www.e90post.com/forums/showthread.php?t=1450450

[Socket]

Originally Posted by Cloud9blue

btw, here is my journey with the build. Definitely not a painless one!

http://www.e90post.com/forums/showthread.php?t=1450450

Great read mate !!! Sorry to hear about all the problems with the pipework fitting together. Will be awesome when its done

[Socket]

Dyno Tune

Its been 12 months since the start of the ST build and almost to the day, we finally have the 98 tune completed

First of all I have to say a big thanks to T1M and Vince, for giving up their time on a Thursday night to dial in the tune. Hanging out until 10:30 at night running logs and loading maps, until the owner kicked us out I can't thank you guys enough.. People like Tim and Vince are why the N54 community is so great

The best run of the night was a little over 180 kw running about 16 psi boost.
Unable to run more due to the waste gate creeping open at the top end.

That said the car is really responsive and is silky smooth. Boost comes on quick with virtually no lag (much like stockies) pulling hard all the way to red line

Very very happy with the tune and to finally have Gary dialed in...

Next will be an E85 tune but that will have to wait for the moment

Anyone looking for a custom tune on either singles or twins, I would head straight to T1M (and his apprentice Vince)

Thanks again fellas

Pics below

[Socket]

[T1M]

It was a good night, Gary made solid power.

This dyno has a reputation for being brutally low, so ~280wkw on 16 psi at redline is a good result I think. The wastegate can't hold the flapper shut from the mid range up, so we're losing boost there, but we're timing limited on 98 fuel too, especially with 37*C intake temps, high humidity and IAT's into the 50's.

More boost meant less timing, so even if it been able to I would have had to pull timing anyway so it's right at the point of diminishing returns in those harsh conditions. Felt great on the street afterwards too

Some E85 with PI enabled and it will go well over 300 on this dyno.

[Socket]

Originally Posted by thegeniusmoose

Hey mate,

I've got the whole M3 rep kit from Euro Division on my E92 also.

Looking at the Maxton Design page, I can find your SS extensions and front lip but only under the M3 category.

Does this mean Euro Divisions (and maybe even MARS) "Made for genuine M3 only" parts actually do fit?

Thanks

Here are the links to the maxton design website for the front lip I purchased and side skirts. I had to trim the side skirts but the lip fits the pre LCI E92 perfectly.
Cant speak for Mars or EuroD M3 parts fitting sorry

http://www.maxtondesign.eu/produkt/m...ml?curency=gbp

http://www.maxtondesign.eu/produkt/3...e92-mpack.html

[T1M]

Originally Posted by Socket

Man how good does that sound! I was not getting that high pitch big single sound inside the car. That's intoxicating.

Stoked to tune it and dial it in for you Phil, it definitely rips now! You cannot beat local support and helping out mates with cars is what it's all about.

The workflow of logging with an MHD tablet and reviewing logs and adjusting the tune on the laptop really sucks for live tuning, Vince helped heaps operating the tablet, and juggling the all important aircon Goddamn it was so hot in there!!

[Cloud9blue]

Very nice! Glad to see it getting to its full potential!

Regarding the wastegate problem, could any of these help?

https://www.ebay.com/i/263404641350?chn=ps&fl=a
http://www.turbokits.com/BMW/135i/Wa...ctuators/1828/

[JB4-335]

Not a bad result.

Is that a mainline dyno?

[Coupes33]

Good result Socks for such low boost. With 20psi boost you would be over 300rwkw running 98.

[kookie]

That is an awesome result.

That thing will be a weapon. Snorkel power!!!

[DR-JEKL]

That's some good reliable street power for you on 98, shall be good to see what it makes on more boost and E85 when you get setup for it and a MT swap

[vtl]

Originally Posted by Cloud9blue

Very nice! Glad to see it getting to its full potential!

Regarding the wastegate problem, could any of these help?

https://www.ebay.com/i/263404641350?chn=ps&fl=a
http://www.turbokits.com/BMW/135i/Wa...ctuators/1828/

An N54 wastegate actuator uses vacuum to close the wastegate, and uses a return spring to keep it normally open. A stiffer spring would just mean the vacuum diaphraghm would need to fight a stiffer spring and reduce your overall clamping force. Sounds like snake oil to me. Unless for marketing reasons they are simply putting in a softer spring but calling it 'harder' cos harder sounds better.

Theres 3 ways I can think of to increase the capability of the vacuum actuator:

1. Softer return spring - The spring force resists the vacuum actuator and a softer one would mean you have more clamping force. This would come at the expense of possibly the wastegate not opening reliability as the wastegate arm requires a bit of force to open.

2. Shorten the wastegate arm - We have already done this, and this netted us a few more psi. This means the wastegate is closed earlier, so the return spring has less preload at that point (fighting the vacuum less). This doesn't do too much though, I shortened the rod by 8mm last weekend and didn't yield us much results.

3. Larger vacuum actuator - The force applied by the vacuum actuator would be the area of the diaphragm x vacuum applied. Larger diameter would mean more force but I haven't seen anything suitable for purchase

4. Longer lever arm on wastegate flapper arm - This is what turbo manufacturers do on turbos like the N55, which used a vacuum actuator similar size to the N54, despite a much bigger turbo. The longer lever arm has more mechanical advantage on the wastegate and therefore has more clamping pressure. This would involve grinding off the wastegate arm and welding in a bigger flapper, not ideal

Originally Posted by JB4-335

Not a bad result.

Is that a mainline dyno?

This one is a dyno dynamics

Originally Posted by Coupes33

Good result Socks for such low boost. With 20psi boost you would be over 300rwkw running 98.

We got over 20 psi after spool, then after 5k rpm or so tapers off smoothly to 16psi. Feels great on the road.

If we had 20psi of boost at redline we would have needed to drop the timing massively and itd make the same power. This is pretty much what 98 fuel will give us. This dyno is known for reading lower than most others, peak numbers don't matter much unless theres multiple cars run on the same day. Ultimately if we want over 300kw should just go to another dyno on a colder day with the same car setup.

[_mpreza]

Im sure the answers im after are on your impresive 150+ pages on your thread socket 👍 but if you could just refresh my memory on how much power you made on the Nizpro dyno with twins and fuel...

Also have you modded your OEM valve cover yet dude?

[Socket]

Originally Posted by _mpreza

Im sure the answers im after are on your impresive 150+ pages on your thread socket �� but if you could just refresh my memory on how much power you made on the Nizpro dyno with twins and fuel...

Also have you modded your OEM valve cover yet dude?

306 on the Nizpro mate
The 7670 set up we are running is estimated to be 318 on the Nizpro dyno

http://www.e90post.com/forums/showth...Nizpro&page=10
All the results and set ups are on post 212

[Socket]

Originally Posted by vtl

An N54 wastegate actuator uses vacuum to close the wastegate, and uses a return spring to keep it normally open. A stiffer spring would just mean the vacuum diaphraghm would need to fight a stiffer spring and reduce your overall clamping force. Sounds like snake oil to me. Unless for marketing reasons they are simply putting in a softer spring but calling it 'harder' cos harder sounds better.

Theres 3 ways I can think of to increase the capability of the vacuum actuator:

1. Softer return spring - The spring force resists the vacuum actuator and a softer one would mean you have more clamping force. This would come at the expense of possibly the wastegate not opening reliability as the wastegate arm requires a bit of force to open.

2. Shorten the wastegate arm - We have already done this, and this netted us a few more psi. This means the wastegate is closed earlier, so the return spring has less preload at that point (fighting the vacuum less). This doesn't do too much though, I shortened the rod by 8mm last weekend and didn't yield us much results.

3. Larger vacuum actuator - The force applied by the vacuum actuator would be the area of the diaphragm x vacuum applied. Larger diameter would mean more force but I haven't seen anything suitable for purchase

4. Longer lever arm on wastegate flapper arm - This is what turbo manufacturers do on turbos like the N55, which used a vacuum actuator similar size to the N54, despite a much bigger turbo. The longer lever arm has more mechanical advantage on the wastegate and therefore has more clamping pressure. This would involve grinding off the wastegate arm and welding in a bigger flapper, not ideal






This one is a dyno dynamics



We got over 20 psi after spool, then after 5k rpm or so tapers off smoothly to 16psi. Feels great on the road.

If we had 20psi of boost at redline we would have needed to drop the timing massively and itd make the same power. This is pretty much what 98 fuel will give us. This dyno is known for reading lower than most others, peak numbers don't matter much unless theres multiple cars run on the same day. Ultimately if we want over 300kw should just go to another dyno on a colder day with the same car setup.

Nice write up mate... you are spot on, we have maxed out the 98..

[Socket]

Originally Posted by DR-JEKL

That's some good reliable street power for you on 98, shall be good to see what it makes on more boost and E85 when you get setup for it and a MT swap

Hopefully will get started on this soon mate