I doubt the 335i is faster than my car....even a modded 335i........I eat them for breakfast and lunch!

My 135i is making 340-350 whp on 13 psi, but you're comparing a motor built for NA to one made for boost. A Z06 makes probably 620 whp on a few psi too...but does that make the Z look bad?

Either way, we'll see how my bimmer compares at the track to my 370z in a couple of weeks. Just from driving around on curvy roads though...I have to say that the bimmer is going to kill it. And all from a $500 tune...

You're still comparing a twin turbo 6 to an NA 6. Of course you'll make more power by upping the boost. But 340 whp on 13 psi Vs 320 whp on 0 psi (full bolt on Z) isn't saying much. BPU++ supras will make 450 whp on pump gas with similar boost and you dont need to upgrade fuel pumps, etc. I'm just saying, the 135 and 335 are nice cars and make a ton of power with a simple ecu flash but it's not exactly a marvel of engineering in terms of reliability with said upgrades. But if you upgrade the fuel pump, exhaust, and intercooler than you'll have a more reliable way of making close to 400 whp on the stock turbos.

I understand, but why are you comparing a full bolt on Z to just an ECU tune 35 motor? Full bolt ons on the Z cost around $3-4k...Stock for stock they are similar, but the Bimmer feels a hell of a lot faster in everyday driving because it is making closer to 300 lb ft of torque and not 240. With a full bolt on Z + tune vs a full bolt on 135i + tune, you are going to be looking at 325 hp and 270 tq (at wheels) versus 390 hp and 410 tq (at wheels). From owning and driving both, the BMW is a lot more fun to drive on the street. I am very excited to drive it on the track and see how it compares. I know it will not handle as well stock for stock, but I plan on getting coilovers for the BMW.

I LOVED my 370 a lot, and it was difficult deciding to sell it. It was a fast car, and handled very well. The main problem in my opinion with the car is that it is NA. It would take about $10k to make my 370z as fast as my 135 is now, $500 later...

But seriously, I cannot figure out why Nissan won't put a motor like the BMW's in a Z!! It would be an amazing car, and considering how much the 135 owners are loving the tuning scene...I cannot even imagine how much it would thrive in the Nissan culture. A car like the 370 that looks as good as it handles deserves a better engine!!

Also who cares what the psi is? The Z maxes out pretty quick on stock internals at relatively low pressures. It's like arguing which one of our girls' boobs are better when my girl started with an A cup and yours started with a B, but they both have boob jobs that put them at a D cup. Boobs are boobs ;)

i know for a fact 370z > 335i...stock for stock...335 of a jb4 on map1 or 2 i forgot will win by half a car.

That's true stock for stock, but my 135i on map 2 will destroy a stock 370z...

:drama:

Paper racing is so cool!

All these points are valid but we seem to be hyper-focused on straight line acceleration and butt dyno's. The Z is a pure sports car. It's light, short wheel-based, high revving, rwd platform is for sports car purists. It's kind of different from the 335 in many ways. For example, the new 5.0 mustang with the performance package has been shown to be nearly as fast as an e92 m3 around a track, but who here would want to own the mustang over the m3 if money were not an option? Don't get me wrong I LOVE a solid, powerful, torquey German car. They're comfortable, handle well, Easy on the eyes, etc. But if all you're after is daily driving fun and acceleration, you're better off with an American V8. Idk about the 135, but the 335 would need substantial weight reduction to keep up with the Z around a tight road course. Going around sweeping curves or S turns on public roads is not the same as racing. Many more factors come into play. For example, if you're "racing" a car on a mountain road in some twisty turns , you'll be limited by the race line you can take because the path of the car is only one lane. So both cars will seemingly go through the turn at the same speed, and the one with more torque will appear faster. Theres a huge difference on a track.

If I had the money I'd have an S5 dd and make my Z into a full on race car. But I definitely don't. Or just buy a GTR FTW!

I've only said that the 135 is faster than the Z in a straight line, and handles well, so I'm excited to see how it compares on the track.

I'm not just after DD fun, but that's important since I'm on the track like 5 or so times a year and driving on the streets about 330 days of the year...

I actually looked at a mustang, and I enjoyed driving it, but I hated the car. Like, when you're in there its fine...but when you're walking up to your car you're just like....ughhh

LOL exactly. I had the same problem with my WRX. And the Evo's create that same disgust in me as well. The new 5.0 is a beast but they could have done so much more with the looks. Nicer rims (much like Nissan did with Rays, I'm sure Ford could have found a nice, deep dish American Racing wheel to offer on the sport packages) maybe a little lower ride height, and 285's in the rear...The interior is also nasty. That car NEEDS sport/racing seats with decent bolsters. And the retro gauge cluster has gotta go.

I think the Mustang 5.0 DUB edition took care of most of those problems :roflpuke2:

2011 DUB Edition Ford Mustang Unveiled

From what I've read and seen and heard, the 370z surpasses the 135i in every performance category... stock. After a few bolt-ons and tune just forget about it, the 135i will leave the 370z in the dust every time...

Not in handling it won't, you still can't overcome a substantial weight penalty. Besides, if you start mentioning bolt ons, the cost savings of buying the Z versus a 135/335i is not exactly small. A couple grand invested in the Z and it would keep up with a 135/335i in a straight line (even or at least close) and would outhandle the BMWs in my opinion.

That said, I have a huge amount of respect for the n54 and how well the BMW packaged comfort and performance.

They are pretty much identical stock for stock. 0-60 in 5 seconds, 0-100 in about 12, quarter in low 13's. After just a tune, a 135i will leave a full bolt on and tune 370z in the dust...

It won't...at all. It wouldn't even be close. Plus, I bought my 135 used with same miles/year as my Z was for thousands less than I sold the Z for. The Z handles much better stock, and I'm interested to see how close lap times will be with my largely stock 135i suspension wise. I'm planning on doing a few hot laps with the stock tune first to see how it compares as the 0-100 & quarter times are identical on the stock 135 and 370. I'm probably going to end up putting sway bars and coilovers on it, but the first few sessions will be with the stock suspension.