[ben410]

Current setup is an n54 with JB4 G5 board (map 5), BMS DCI, VRSF DP's and 50/50 e85/91. Been super happy with the n54 for many years. I've been driving a 335i since 2007, and now on my second (2010 e92 m-sport).

I haven't dyno'd the car, but I imagine I'm just under 400whp. What are the next steps I'd need to take to reach 550-600 whp on the n54? Engine has 30k miles on it and running great. I'd really like to max out this n54 and see what it can really do. And I'm sure this has been asked before, but I just need a quick straightforward answer. I'm currently car-shopping, so I'm trying to decide what makes the most sense for me (buy a new beast vs. max the n54)

Thank you very much in advance for any and all advice! Cheers!

[AK 335i]

Originally Posted by ben410

Current setup is an n54 with JB4 G5 board (map 5), BMS DCI, VRSF DP's and 50/50 e85/91. Been super happy with the n54 for many years. I've been driving a 335i since 2007, and now on my second (2010 e92 m-sport).

I haven't dyno'd the car, but I imagine I'm just under 400whp. What are the next steps I'd need to take to reach 550-600 whp on the n54? Engine has 30k miles on it and running great. I'd really like to max out this n54 and see what it can really do. And I'm sure this has been asked before, but I just need a quick straightforward answer. I'm currently car-shopping, so I'm trying to decide what makes the most sense for me (buy a new beast vs. max the n54)

Thank you very much in advance for any and all advice! Cheers!

Single turbo kit.
Custom/PTF/FFTEC

550-600 is far from maxing out, its mid power not even really high anymore these days

[135Pats]

A 5862 would do that with great spool

[jlcf22]

575whp for $5k would be a good selling market...single turbo setup is to expensive and hybrid turbos for $3k for only 70whp doesn't do my any justice

[knissel]

need to have a big swinging dick also

[robc1976]

Originally Posted by 135Pats

A 5862 would do that with great spool

I am going to this and looking to get 650+ with aggressive tuning.

[Tony@vargasturbotech]

Our stage 2 turbos coupled with our HPFP upgrade and 100% E85 just put down three 550WHP in a row on the dyno. They prob is, this is absolute max on stock frame turbos and they won't last long at those levels even though we have proven they are possible on a completely stock motor. Your best bet is settle for a consistent 500WHP which can be had on stage 2's and fuel available at the pump. Or go with one of our small stage 3 kits, or a small single, and make 600 easily on E85. We are adressing the 4-5K 600 WHP market, but its quite a ways off. Shoot us an email with any questions about our products or even singles for that matter. We can help you understand what you need to reach your goals even if you choose to go with another companys products.

[135Pats]

Originally Posted by robc1976

I am going to this and looking to get 650+ with aggressive tuning.

I don't know the precision lineup well enough to really be informed here, but i'd imagine 650+ is probably getting up into the 6266 type class of turbo. I don't recall what Terry put down on his E8x with the 5862 but the curve and spool were beautiful.

It's about time you went single man! Your car is too awesome to be held back by stock frames.

[Blaster400]

Originally Posted by 135Pats

It's about time you went single man! Your car is too awesome to be held back by stock frames.

Don't encourage him lol.

[AK 335i]

Originally Posted by 135Pats

I don't know the precision lineup well enough to really be informed here, but i'd imagine 650+ is probably getting up into the 6266 type class of turbo. I don't recall what Terry put down on his E8x with the 5862 but the curve and spool were beautiful.

It's about time you went single man! Your car is too awesome to be held back by stock frames.

650 plus is definately in thevargas stage 3 or 6466/6266 range.

Can you do 650 on a 5862 on an n54? maybe but i dont think so. IF you did you would be at or beyond the practical limits of that turbo.

[robc1976]

Originally Posted by AK 335i

650 plus is definately in thevargas stage 3 or 6466/6266 range.

Can you do 650 on a 5862 on an n54? maybe but i dont think so. IF you did you would be at or beyondI just the practical limits of that turbo.

Terry did 620 with moderate boost and moderate timing. I would think with aggressive tuning and timing (hopefully my ported head comes into play) I could squeeze another 30 hp easily. I just don't want lag, I like very quick power. If the 5862 is only good to 620 I guessed it's not worth it for a additional 70 hp. I will have to go to the 6266, hopefully with some torque tables/aggressive timing via the wedge flash it will help.

Lag is so hard to gauge since everyone has different tuning ect.

[robc1976]

Originally Posted by Blaster400

Don't encourage him lol.

lol, you're fault I got a 1M bumper and more a hood and sidskirts

[AK 335i]

Originally Posted by robc1976

Terry did 620 with moderate boost and moderate timing. I would think with aggressive tuning and timing (hopefully my ported head comes into play) I could squeeze another 30 hp easily. I just don't want lag, I like very quick power. If the 5862 is only good to 620 I guessed it's not worth it for a additional 70 hp. I will have to go to the 6266, hopefully with some torque tables/aggressive timing via the wedge flash it will help.

Lag is so hard to gauge since everyone has different tuning ect.

if you havent already, b4 you pull the trigger on a ST hit up Jake@Protuningfreaks.com

youll be glad you did

[jlcf22]

Originally Posted by Vargasturbotech

Our stage 2 turbos coupled with our HPFP upgrade and 100% E85 just put down three 550WHP in a row on the dyno. They prob is, this is absolute max on stock frame turbos and they won't last long at those levels even though we have proven they are possible on a completely stock motor. Your best bet is settle for a consistent 500WHP which can be had on stage 2's and fuel available at the pump. Or go with one of our small stage 3 kits, or a small single, and make 600 easily on E85. We are adressing the 4-5K 600 WHP market, but its quite a ways off. Shoot us an email with any questions about our products or even singles for that matter. We can help you understand what you need to reach your goals even if you choose to go with another companys products.

Tony you should come up with a stage 2 1/2 that would be awesome lol

[Blaizon]

Originally Posted by 135Pats

I don't know the precision lineup well enough to really be informed here, but i'd imagine 650+ is probably getting up into the 6266 type class of turbo. I don't recall what Terry put down on his E8x with the 5862 but the curve and spool were beautiful.

It's about time you went single man! Your car is too awesome to be held back by stock frames.

650whp would be mid boost type of power ~22-24psi...the turbo wouldn't even break a sweat at those power levels.

[135Pats]

Originally Posted by Blaizon

650whp would be mid boost type of power ~22-24psi...the turbo wouldn't even break a sweat at those power levels.

On a 5862? You certainly know better than I but I would have thought that would be pushing pretty hard on a 58mm.

Regardless either option provides really nice spool. And now that we have the fuel for 100% E85 with a single, you can crank things up in a way we haven't been able to

[N3m3sis]

I second the motion for a stage 2.5 lol

[AK 335i]

Originally Posted by Blaizon

650whp would be mid boost type of power ~22-24psi...the turbo wouldn't even break a sweat at those power levels.

on a 6266 you would be looking more at 24-26psi for 650whp, but you are right that is not breaking a sweat on that turbo

Originally Posted by 135Pats

On a 5862? You certainly know better than I but I would have thought that would be pushing pretty hard on a 58mm.

Regardless either option provides really nice spool. And now that we have the fuel for 100% E85 with a single, you can crank things up in a way we haven't been able to

im sure he is referring to the 6262 or 6266

you are not going to be any where near 650whp on 22-24psi on a 5862

[135Pats]

Originally Posted by AK 335i

on a 6266 you would be looking more at 24-26psi for 650whp, but you are right that is not breaking a sweat on that turbo



im sure he is referring to the 6262 or 6266

you are not going to be any where near 650whp on 22-24psi on a 5862

that's what I figured

Dan what are you up to now a days in terms of boost? You did a few pulls into the low 30s right?

You gotta get that HPFP strapped on to really get into the 6466 mang

[AK 335i]

Originally Posted by 135Pats

that's what I figured

Dan what are you up to now a days in terms of boost? You did a few pulls into the low 30s right?

You gotta get that HPFP strapped on to really get into the 6466 mang

ill be working on tuning for 30-34psi when i get home again and dyno at the highest boost i feel comfortable with.

If the new HPFP was available now, id try it out. But no sense in going on a waiting list for it when Supplemental PI may be up and going on my car before the HPFP is sent to me.

we will see how the time lines pan out. If Tony @Vargasturbotech wants to send me one now, ill test it out and dyno and share the results. His first modified original HPFP and rail has worked great on my car so far

[Blaizon]

Originally Posted by 135Pats

On a 5862? You certainly know better than I but I would have thought that would be pushing pretty hard on a 58mm.

Regardless either option provides really nice spool. And now that we have the fuel for 100% E85 with a single, you can crank things up in a way we haven't been able to

My fault, I was talking to the 6266.

[Stucks]

Originally Posted by AK 335i

if you havent already, b4 you pull the trigger on a ST hit up Jake@Protuningfreaks.com

youll be glad you did

+1, their single turbo kit has unmatched spool with the capability for big power. I rode in jakes personal car, and its the best kit I have seen so far. eagerly awaiting its full release like so many others.