[rick100]

Originally Posted by 924er

335i hits peak torque at 1300-1400rpm. That's why it's known for low end torque. Correct me if I'm wrong but that is what I've always thought.

You are right superchargers have no lag which is nice but they also don't have that kick turbos get. And they rob HP from the engine by utilizing the pulley. I don't feel much lag on the 335i, bmw designed it with a smaller turbo to kick in on low RPMs for a reason. I bet if ESS released a turbo for the n52 it would sell a lot more.

Low end torque is right but it peaks at 5000-5500 rpm meaning it does not produce more power after . Power actually drops.
In the other hand the 328 still makes power all the way up to 6500-7000 rpm

I also prefer turbochargers but there are advantages to superchargers

[924er]

Originally Posted by rick100

Low end torque is right but it peaks at 5000-5500 rpm meaning it does not produce more power after . Power actually drops.
In the other hand the 328 still makes power all the way up to 6500-7000 rpm

I also prefer turbochargers but there are advantages to superchargers

Specs say 300ft-tq @1300 though doesn't that mean it peaked 300ho at 1300

[631twentyeighteye]

Originally Posted by 924er

335i hits peak torque at 1300-1400rpm. That's why it's known for low end torque. Correct me if I'm wrong but that is what I've always thought.

You are right superchargers have no lag which is nice but they also don't have that kick turbos get. And they rob HP from the engine by utilizing the pulley. I don't feel much lag on the 335i, bmw designed it with a smaller turbo to kick in on low RPMs for a reason. I bet if ESS released a turbo for the n52 it would sell a lot more.

Different strokes for different folks.

I'd pick a SC'ed N52 over an n54/n55 any day, but that's because it's my preference. There's no logical reason to do so considering turbo's are more efficient, but I prefer my power in the top end of the RPM range rather than a great big lump in the low end that falls on its face at high RPM.

Also having driven n54 and n52 back to back many times, the n54 still definitely has turbo lag. It's very apparent when you're used to an n52. I've never driven an n55 so i can't speak for that.

Not trying to detract anything from x35i guys, because they're great motors. But turboing an n52 would just be silly when you can trade in for an n54.

[Nordkeyz73]

I agree. Test drove an N54 before my N52. But to be honest, the feel of the N52 was something I couldn't ignore. The N54 has a bit of lag, and compared to the N52, it's noticeable. An SC N52 would accentuate the attributes that already make the N52 a great engine.

[Mike.]

when I was rocking the new 328 GT this summer I noticed it had lag but when the turbos spooled it was like a little rocket. it was a 328xi GT and it clocked in 0-60 at 6.1 so it hauled ass for a weird wagon looking thing with xdrive. Thats just as fast as my 328xi, also clocked at 6.1 but with bald tires.

[b-man]

Originally Posted by Emozoo

when I was rocking the new 328 GT this summer I noticed it had lag but when the turbos spooled it was like a little rocket. it was a 328xi GT and it clocked in 0-60 at 6.1 so it hauled ass for a weird wagon looking thing with xdrive. Thats just as fast as my 328xi, also clocked at 6.1 but with bald tires.

What do you have on your 328xi?

[Nordkeyz73]

That thing is ODD! But high-end hp screaming at 7k is something to look forward to

[rick100]

Originally Posted by 924er

Specs say 300ft-tq @1300 though doesn't that mean it peaked 300ho at 1300

Again what I mean is that 335 does not produce any more power after 5000-5500 RPM power actually drops after 5500 RPM. meaning there is not top end power while the 328 is still producing more power at 6500-7000 RPM

Look at dyno graphs for 335 and 328.

[Volasko]

Originally Posted by 924er

Specs say 300ft-tq @1300 though doesn't that mean it peaked 300ho at 1300

Typically when a manufacturer states a HP/TQ figures they state the peak value and then the cooresponding RPM it was measured at. Assuming the TQ curve is perfectly flat it is in the manufacturers best interest to state the lowest RPM it could do that performance at (ie. lower RPM is better when it comes to TQ values).

[Mike.]

Originally Posted by b-man

What do you have on your 328xi?

N51 w:
Ram air intake w/ charcoal filter removal and silicone intake
aa tune
pe exhaust with secondary cats deleted

I think that's it

[924er]

Originally Posted by rick100

Again what I mean is that 335 does not produce any more power after 5000-5500 RPM power actually drops after 5500 RPM. meaning there is not top end power while the 328 is still producing more power at 6500-7000 RPM

Look at dyno graphs for 335 and 328.

Yeah I agree with you are right about that part, it does fall flat on its face at 5800 or whatever but most 335i guys know that and that's why they shift at that point. It will then fall flat on its face once you reach your top end which is around 150mph lol

what I was tryna say is that the 335i will hit 300tq at 1400rpm all the way to 5500 RPM. It doesn't hit peak tq at redline like an NA engine would.

[924er]

Originally Posted by 631twentyeighteye

Different strokes for different folks.

I'd pick a SC'ed N52 over an n54/n55 any day, but that's because it's my preference. There's no logical reason to do so considering turbo's are more efficient, but I prefer my power in the top end of the RPM range rather than a great big lump in the low end that falls on its face at high RPM.

Also having driven n54 and n52 back to back many times, the n54 still definitely has turbo lag. It's very apparent when you're used to an n52. I've never driven an n55 so i can't speak for that.

Not trying to detract anything from x35i guys, because they're great motors. But turboing an n52 would just be silly when you can trade in for an n54.

I totally agree. I was once against forced induction which is why I drove an NA 328 for a while but realized there isn't many mods that give substantial gains for the money. I got greedy and traded it in for the 335i. I don't feel much lag compared to other turbo carsat all actually, the older software did have some lag.

The 328i did have some pedal lag I couldn't stand. The throttle response was bad until I bought the Bms power box.

[Nordkeyz73]

Roman@ESS

Is the VT 1+ anymore boost than the VT1, or just injectors?

[JDane07]

Originally Posted by Nordkeyz73

Roman@ESS

Is the VT 1+ anymore boost than the VT1, or just injectors?

I thought he mentioned in the past that the max PSI would be increased with the injectors.

[E46driver]

Originally Posted by Nordkeyz73

Roman@ESS

Is the VT 1+ anymore boost than the VT1, or just injectors?

from what i recall, roman said the stage 1+ would be running 7 or 7.5 psi along with the fuel injectors. Its somewhere in the original ess thread.

[b-man]

Originally Posted by E46driver

from what i recall, roman said the stage 1+ would be running 7 or 7.5 psi along with the fuel injectors. Its somewhere in the original ess thread.

Yeah definitely more boost. I think he said 8psi.

When they first announced it, they were running 10psi with 325whp or sth. That was exciting

[PureE92]

Originally Posted by b-man

Yeah definitely more boost. I think he said 8psi.

When they first announced it, they were running 10psi with 325whp or sth. That was exciting

Well if they tested it with 12psi and they release it at 8psi atleast we know it'll be reliable right?

[Nordkeyz73]

Yeah, I think around 7-8. Either kit still has yet to officially appear on their web shop around 10 months after the announcement. I think they jumped the gun

[W37V]

Originally Posted by Nordkeyz73

Yeah, I think around 7-8. Either kit still has yet to officially appear on their web shop around 10 months after the announcement. I think they jumped the gun

You just need to know where to look
http://europeanautosource.com/ess-su...m-bmw-n52.html

[Rodny]

http://www.e90post.com/forums/showthread.php?t=1088073#


- Boost pressure: 5 PSI
- Horsepower: 60whp over stock power with 91 octane

System components:
- Vortech V3Si internally lubricated supercharger unit.
- One belt driven w/self tension system.
- CNC machined, hard anodized brackets.
- CNC hard anodized pulleys.
- Long life serpentine drive belt.
- K&N cold air intake located inside front bumper.
- Detailed and illustrated installation manual.
- 2yr./unlimted mileage warranty.
- 100% maintenance free operation.

Models Supported :
2005-2007 E90 325i
2007-2011 E90 328i
2005-2008 E90 330i
2008-2011 E82 128i
2006-2008 E85 Z4 3.0i

[631twentyeighteye]

I think with no other mods the stock fuel system can handle 6PSI@ redline, but with catless headers the additional fueling needed means it can't fuel the 6PSI@ redline so they reduced it to 5PSI@ redline.

Just my best guess.

[rhombus]

Originally Posted by 631twentyeighteye

I think with no other mods the stock fuel system can handle 6PSI@ redline, but with catless headers the additional fueling needed means it can't fuel the 6PSI@ redline so they reduced it to 5PSI@ redline.

Just my best guess.

The 5psi kit is 6psi right at redline. The stock fuel system is the limitation.