Gernby

iTrader: (1)

The break-in thing has been argued to death here, but I'm convinced that the engine continues breaking in for at least 5K miles. I imagine power would probably start dropping once it quits rising. Every 30K new / used performance test I've seen in Car and Driver shows quicker 0-60 and 1/4 mile times at the 30K mark. I also know that my car wouldn't even chirp the tires in 1st gear on any dry surface when it was new, but it frequently chirps them in 2nd gear now on the grippiest of surfaces.

y2ks2k

We all know that a quarter with a 335 is a driver’s race stock for stock. The 335 actually has the advantage as higher speeds and at a given speed. Unfortunately, what I see out there in the Auto world is that people for some reason think the 335 is radically faster. We also know that the 335 has the advantage in handling (not significant) and very a lot better "driver feel" however subjective that is.

I am still pissed about the earlier reviews before the 335 came out where it was up against the 330. The IS350 trounced it in the quarter and had higher handling numbers all around but still “lost” on performance comparisons for no other reason than “the 330 feel”

People still use early reviews like that to argue how much better the 3 series is in performance.

combfilter

iTrader: (3)

Gernby I think they were all in the 83mph range. I don't reemeber any of them at 82 or 84.

Yeah, my 4th sucks. i think it's your lower profile tires that help you on the end of the track. i remember when we raced we pretty much had the same car cept you had about 10-12k miles on yours and i had 2k. We were neck and neck up to the 1/8th mile, and then when your car got past that mark you started to pull from me.

I am getting some low profile 18" kuhmo's for my stock rims for feb.


A few people asked me about brake torquing. Do it like this. Start first run with no brake torque, move it up to 1000, if no spin, move it up to 1500, if no spin go to 2000 etc..... once you start spinning ease it back. Sunday was warmer than sat for me and I couldn't even launch with 1000. I had to do straight up normal with no brake torque.

FiveOhNine

Look again:

Mods:
335 sedan
6speed
JBS2 ( not the race gas one)
Riss Racing 3 inch downpipes...prototypes.
Drag Radials
2-3 gallons of 100 octane mixed with 91 octane
Modded CDV

Vishnu isn't the only tuner.

Lextasy89

wouldnt the lower profile tires have the most advantage in the 1/8 mile and not after.. if gnerby was pullin ahead after the 1/8 its probably bc his car has more rwhp

insider

It's only $350 http://www.bmwjuice.com/ so I don't know if you would call that a tune

Gernby

iTrader: (1)

It is probablly the other way around. If you find the accelleration chart that I posted in some other thread, you'll see that there are certain areas (speeds) of the accelleration curve from gear to gear where the lower gearing helps (in green), and other places where it hurts (in red). If you look only at the area between 84 MPH and 110+ MPH, I'm pretty sure there will be more green than red.

Lextasy89

of really? i though it mainly helped in the 1/8 since its lowere gearing and increases bottom end acceleration.. but i guess it kinda helps all over

Cornellian

Don't you get it?!? It's not the cost in this case, but it's the bump in HP/TQ numbers that count...

Sure, exhausts cost more but, they don't deliver that much as this may.

Gernby

iTrader: (1)

I just found the chart in this thread. It turns out that the lower gearing will probably improve the 1/8 mile trap speeds more than the 1/4 mile trap speeds.

92 SC400

^^^^ Gotta love those crazy 1/8 mile car wheelies!!!

isam250

iTrader: (7)

dang you smoked that bmw

FiveOhNine

So there is some ambiguous floor to the amount of money spent indicating 'tune'?

With turbos it often doesn't take much to squeeze more power out of it.

'Based on the popular Stage 1 design, the JB2 offers additional boost and significantly richer air/fuel targets. Gains average 35-45 rear wheel horsepower and 45-60 rear wheel torque. Quarter mile times are improved to 12.8@108mph, and 0-60 comes as quickly as 4.25 seconds (as timed on our automatic E90 335i development car). The key to its operation is the enhanced fuel enrichment logic, which improves the air/fuel ratio from the factory average of 14:1 to a more horsepower friendly 12.5:1. If you want the maximum performance from your 335i along with safer air/fuel ratios for sustained high-load driving, Stage 2 is for you. Just as with Stage 1, factory fuel economy is preserved when not racing.'

that's a tuner. Just ask yourself if there are any mods short of forced induction for the IS that will get anywhere close to gains like that.

BlackGhost

Greetttttttt Killlllllllllll :d

picus

The JB2 is a straight up tune, it changes boost and fuel timings, same as the PROcede. It's a little less flexible, and also a little less aggressive. It's similar to the AA Xede, which is what I run. The PROcede is offering the most power right now, but it's also the most aggressive and there have been some boost target problems. With my AA & exhaust I'm running 12.6's pretty regularly. My issue is traction. (FWIW, my exhaust cost double the xede, and got me maybe 10hp, the xede got me 51hp and 67tq. Exhausts are about sound. Downpipes are a different story).