Yonkersracing

My buddies 335xi when it was stock with ~3K miles. My Type S w/ I/RH/E/RBC/KPRO Tuned by Chris @ Xenocron Tuning.

Yonkersracing

Surprised no comments here, I was actually surprised how well he kept up for being completely stock and AWD. Since then he's added a Vishnu 3.5" DP, chargepipe tapped for meth (but he might get rid of the car) and Vishnu Procede on the most aggressive pump gas setting. He hasn't dyno'd it but the best he ran was 13.2ish @ 104-105....I expect him to pull but not too badly. Hopefully have more vids for you guys this weekend.

D's Up

I'm impressed that you pulled an XI model, but I wonder how you would fair against the regular 335i. I know the AWD is a pretty serious hindrance when racing from a roll. Nice kill anyways man. How much did you win by? I couldn't really tell in the video.

dgsedan06

I would love to run your rsx. Just for fun though, maybe I'll win. Lmfao jk

Yonkersracing

TBH, I've never run a 350Z or G35 Coupe but I was able to drive an 07 G35 Coupe 6 speed for about a week while my car was getting tuned. I'd say it was probably as fast as my 05 when it was I/RH/E only. It was weird because of DBW it kind of delayed off a roll.

Yonkersracing

I ran a 335i that was tuned when I raced the supercharged 740, he pulled me good but that was expected b/c he is an N54 and tuned.

The N55 is a bit slower and being stock I was able to pull a good car or so on him. Now that he's modded we're gonna do so more pulls maybe this weekend, stay tuned.

D's Up

I'm very curious to see how you would do against a stock and bolt-on HR 350Z. I'm having crazy remorse over not buying one of those instead of my S2000. Please run one and get it on video if you ever get the opportunity.

Yonkersracing

Definitely will do, also would like to find a nicely modded bolt on S2K with a tune to run as well.

dgsedan06

My car is practically a 350z in a suit Id run you if your in NY, I also have a charger srt8 w I/E if your interested in running that. Have you ever run one? They are ridiculous off a roll...

Sonnick

In for moar vids.

anx1300c

iTrader: (2)

Is Vishnu Procede that weak? That's only ~4mph better than stock.

D's Up

Wouldn't doubt it. It seems like the masses go for the JB3's and 4's anyways.

It's weird to hear about a 335i that isn't ballistically fast. lol

BostonSilverTypeS

nice kill....yeah the N55 335xi are much slower, on the highway I have beaten a stock335xi N55 6at ......trying to get my buddy to run me his stock 335i N55 6mt with some heavy 19's deep dish, but he always has excuses..lol

Yonkersracing

I believe it's the N55 not the Vishnu Procede that is the issue, that motor just isn't as good as the TT version N54.

I'll do some pulls with the G35, I don't know about the Charger, I think that's outta my league. Any numbers on the G? I just need to get my windshield molding fixed, when that's done I'll let you know. Where located in NY...PM me.

BostonSilverTypeS

N55 is not as mod friendly as the N54 and big part is because the N55 has valvetronics+VANOS and N54 does not have valvetronics, just VANOS so much easier to mod and get power from, which is why BMW when they did the 335is did not use the N55 motor but rather the N54tt and same for the 1M they used N54tt and not the N55 motor

BEAR-AvHistory

+1

The early stock N54 can be as much as +20whp over a stock N55. Later N54's, not IS versions, are +12whp over a stock N55. The 335is stock N54 is about 314whp on a dynojet (my car) with 93/94 octane which is +30whp over an early N54.

BostonSilverTypeS

^ yes ......so basically when BMW said 300/300 for N55 it was overrated and N54 underrated but they are anot going to admit that or else you would have alot of unhappy N55 owners.........but one thing I have noticed is that some motors vary so much from motor to motor....I mean no 2 motors are the same but in N54 or N55 case they very much more then the norm circumstances

anx1300c

iTrader: (2)

The N55 isn't overrated at all. The absolute lowest dynos are in the low 260's which is very strong for a RWD car rated at 300 bhp. For reference, most IS 350's dyno in the 250's on a 306 bhp rating.

BEAR-AvHistory

Its also tricky to compare because the gap from 91 to 93 octane can be up to 10whp back to back on the same car & dyno. Most of the N55 265whp numbers are on 91 while 93 can boost that into the 270's stock.

Without a tune not much more can be gained with better gas.

BostonSilverTypeS

When I said overrated I meant it as compared to N54....N55 by no means is a slouch in the big picture I was just referring it to the N54

BEAR-AvHistory

260whp works out to 300crank which is what is advertised by BMW. So all three N55, N54 & N54is are under rated.

The problem is the crank horsepower ratings by BMW are not consistent. My car is 314whp pure stock on the dyno which would give it 361crank but depending on the car the N54is rated at anything from 320 to 335 crank.

AtlM5

bmw is usually very conservative with their horsepower and acceleration figures...another thing to consider is that we do not know the exact drivetrain loss figure

BEAR-AvHistory

BMW pro tuners use 15% which seems to be a standard for RWD cars. IIRC BMW also used this number in a publication but I can’t remember where I read it.

BostonSilverTypeS

believe it or not BMW drivetrain loss is pretty amazing 10-12% for RWD 6mt cars, not sure on the Auto's or DCT but can't but much more....spoke with some Engineers about this when I had to go to training for the N55 class update...pretty crazy stuff.....Next up N20 motor...hear nothing but amazing things from techs who have gone to the class already! complete teardown of the N20 motor........And yes Bear you are correct as saying they are under rated in general! and also Atl M5 they do stay conservative

Yonkersracing

I always thought it was ~10-12% on a FWD car, ~15% on a RWD car and ~18-20% on AWD. Obviously some cars are underrated but those are the standards I go by.