[yas_e92]

Hey i know theres a few people who have been asking about a top mount single turbo upgrade for the e92 n55 335xi.. i havent been able to find any updates on top mount kits available for AWD vehicles.. anyone know of any top mount kits for awd n55?

[yas_e92]

Went with pure stage 2 and port injection for now. Impatiently waiting for a docrace AWD n55 6266 kit ☹️🙃

[DiFFv1]

Originally Posted by ChicagoBimmers

Went with pure stage 2 and port injection for now. Impatiently waiting for a docrace AWD n55 6266 kit ☹️��

Working on 6266 kit myself (Bottom Mount) N55 , Getting the exhaust manifold done now. How are the PS2's working out?

[E92n55slo]

Originally Posted by ChicagoBimmers

Went with pure stage 2 and port injection for now. Impatiently waiting for a docrace AWD n55 6266 kit ☹️🙃

I'm in the same exact situation, idk ps2 sucks lmao, I'm tossing around going speedtech for now or possibly bigboost kit but using a better turbo

[DiFFv1]

Originally Posted by E92n55slo

I'm in the same exact situation, idk ps2 sucks lmao, I'm tossing around going speedtech for now or possibly bigboost kit but using a better turbo

+1 on PS2

[TheGoodTheBadTheUgly]

Originally Posted by E92n55slo

I'm in the same exact situation, idk ps2 sucks lmao, I'm tossing around going speedtech for now or possibly bigboost kit but using a better turbo

Isn't the speedtech kit for F series? I know BigBoost has one for E serues

[Kevin39]

The Speedtech kit fits the E series as well but the bigger 8374 turbo doesn't quite fit without some modification.

[HeyTeeee]

Originally Posted by E92n55slo

I'm in the same exact situation, idk ps2 sucks lmao, I'm tossing around going speedtech for now or possibly bigboost kit but using a better turbo

Noob here. What sucks about the ps2? I’ve (so far) read what seems like good things? Granted, a turbo upgrade is not even on my radar atm as I’m focused on ensuring this baby is healthy enough to even handle a stage 1 mhd tune so clearly I’ve missed some in depth posts.

[Parthyboostboi]

in for info. new to n55, does the doc race top mount kit not fit our e92 awd?

[E92n55slo]

Originally Posted by HeyTeeee

Noob here. What sucks about the ps2? I’ve (so far) read what seems like good things? Granted, a turbo upgrade is not even on my radar atm as I’m focused on ensuring this baby is healthy enough to even handle a stage 1 mhd tune so clearly I’ve missed some in depth posts.

It's just slow too me I want more, the ps2 is great turbo for most, you might feel it's great, to me though I want more, ps2 is still just a stock frame turbo, it's bigger than stock but it's still really small.

[DiFFv1]

Originally Posted by E92n55slo

It's just slow too me I want more, the ps2 is great turbo for most, you might feel it's great, to me though I want more, ps2 is still just a stock frame turbo, it's bigger than stock but it's still really small.

+1

[yas_e92]

Originally Posted by DiFFv1

Working on 6266 kit myself (Bottom Mount) N55 , Getting the exhaust manifold done now. How are the PS2's working out?

Honestly for the n55 PS2 is more than enough. at about 27psi on E50 im making 495awhp and 554tq on a mustang dyno (arguably 540awhp/590tq dynojet). With a bigger turbo i dont think itll make much of a difference since the stock block can only safely handle a certain amount and i believe most people have said upto about 600whp. Im AWD tho so im not sure if the big single turbo options would do for RWD n55's

[yas_e92]

Originally Posted by Parthyboostboi

in for info. new to n55, does the doc race top mount kit not fit our e92 awd?

Docrace top mount kit only fits F -series AWD vehicles. As of right now they dont offer a top mount ST option for the AWD e series n55.

[yas_e92]

Originally Posted by E92n55slo

It's just slow too me I want more, the ps2 is great turbo for most, you might feel it's great, to me though I want more, ps2 is still just a stock frame turbo, it's bigger than stock but it's still really small.

I felt the same way originally. Seeing the Pure turbo i was like wth is this... it looks basically like the stock turbo and comes with basically stock ported looking manifold.

After getting a custom tune i realized that regardless of what turbo upgrade i went with (Bigboost, speedtech, docrace) the n55 block doesnt seem to be able to handle as much power as the N54. Correct me if im wrong but i have yet to see a E series n55 making over 600/700whp without building the motor.

[yas_e92]

Found this on a speedtech post on ***********s forum. great info for n55 owners.


[ Here is a slightly related comment by Pure about N55 Engines:

"We have recently learned some things about the N55 motor. The biggest one that hasn't seemed to make it to the forums yet, is that they appear to be much weaker internally than an N54. I know of 4x N55 motors now, all single turbo cars making 600-650whp, that bent or broke rods. There's only a handful of N55 ST cars around, so that may be a majority of them with broken motors, lol. I'm sure a motor would last for a while with a conservative tune, great fuel, and no mistakes. But unless you want to explore new territory with a built motor, single turbo, etc., the N55 is best with 450-550whp and a simple setup, like PURE Stg2.

The stock N55 engine seems to eventually break at the 600+whp level." ]

[joshe92]

t

[Parthyboostboi]

So I have an opportunity to have a local guy who makes awesome kits for n54's make me a custom kit on my n55. Thinking of doing a top mount on my e92 n55 that is xi, was thinking of going precision 6266. What do you guys think of this idea? I know these motors haven't had much experience over 600hp range. seeing as my car/motor only have 40k miles, I don't want it to pop. Really like the idea of a top mount but it just sucks that no body makes them and that the n55 seems to be weak. And if I have him make a custom top mount kit there is no point in showing off a ps2 turbo. Low boost making around 550 worth it? Would be paying around 4500 said and done.

[Parthyboostboi]

Also I've heard of f-chassis n55's making around 640 what are the major differences between the n55e and the n55f??

[DiFFv1]

Sold my 6266 , N55E Will not compare in power with the N54 without the proper work. Just went with VTT instead, Going to keep it a decent daily and under the "breaking Limit" as they call it.

[Parthyboostboi]

Originally Posted by DiFFv1

Sold my 6266 , N55E Will not compare in power with the N54 without the proper work. Just went with VTT instead, Going to keep it a decent daily and under the "breaking Limit" as they call it.

Nice what kind of power are you making with the VTT? Supporting mods/tune/psi

[DiFFv1]

Originally Posted by Parthyboostboi

Nice what kind of power are you making with the VTT? Supporting mods/tune/psi

400+ / Both ways on 93oct

[Parthyboostboi]

Have you guys seen this? Rwd but still a top mount n55