[catdog]

Originally Posted by hotrod182

I think you said your original runs were in 80F temps, what were the temps in the morning? It does seem unusual to pick up 4mph overnight. That is about a 40 horsepower variance! See if you can hook up the GTech on another morning, and make about 3 runs, make sure they all make sense, consistantly, and see how they compare. If you really did run 109MPH, that is phenomenal. By the way, your best times in your M3 were consistant with my M3, 13.09 @ 107mph+

Hi and thanks for the advice, the temp in the morning was 74 and it was much less humid, the biggest difference came to the launch unlike the previous night when i had difficulty lauching in the xi but not in the porsche. I don't think it has anything to do with gaining any power from the weather difference which was slight. More importantly it was a nice run where i felt the launch was good and the critical 1st-2nd shift was also good. This is borne out by the lower 60 ft which if you look at day before were all in the 2 s range and came down to 1.8 range. If you look at the curve you will see the shift times are much slower in the xi than in the porsche as well (courtesy cdv i think).

It was also daylight compared to previous night but even then did a 13.1 run with a 2.0 sec 60 ft. The data is there for what it's worth.
I just want to point out that in a manual > smg > step the launch and shifting are critical and it is really not always as easy to launch reliably with cdv, the first few attempts i had a little gear crunch at 1st/2nd gear and on another run slipped the clutch and nearly burnt it well into 1st gear.
Compare the variability of my runs compared to your runs from yeserday which were all on top of each other because of the consistency of the auto transmission.

That said, i will be trying different fuels and a cooler day and will be sure to continue posting in the next few weeks. Also i think if other members documented their runs with a gtech-type device (less than $300) then we may be able to cut through the hype and maybe get a range of what is to be expected with the various mods and tunes, transmissions, and effect of xdrive/tyres, gas. As you know, unlike a dyno run which is static, the gtech when using the actual curve with the software gives a good idea of the relative effect of the launch, the shifting and torque curve in real life situations to some extent. Also in contrast to drag strip, there is no reaction time involved and so one less factor is there to muck up interpretation, even though everyone will argue about that back and forth.

I am not a drag-race guy; back in 2004 when i had my M3 i got the g-timer did some runs to get an idea of what the numbers and then never used it again. This time i was curious because of the whole i/xi and jbs2 vs stock and also because i wanted to know what my 997s could muster. It always sounded and felt faster than the xi but in the end you can see they are not that far apart really, which goes to point out the importance of uncoupling the sensory noise such as how sexy and powerful an engine sounds its torque curve, its redline, the vibration and sound deadening etc. from what it actually delivers in hard numbers.

I think Ferrari and Porsche have mastered the sensory front, (and BMW M more so than Audi S/RS) where the whole driving experience is magical, and that's why the M3 feels special and faster yet the tuned "lowly" 335 can probably dispatch a few of these cars with less drama but perhaps also with less exhilaration. my .02 or .03

Last thing my m3 was smg fwiw.

[catdog]

BTW, also have been driving my car with solenoid for left exhaust disconnected (i.e. electronic equivalent of the t-mod), not sure that has any effect on performance (suspect not) but for interest of full disclosure

[catdog]

Originally Posted by hotrod182

I think you said your original runs were in 80F temps, what were the temps in the morning? It does seem unusual to pick up 4mph overnight. That is about a 40 horsepower variance! See if you can hook up the GTech on another morning, and make about 3 runs, make sure they all make sense, consistantly, and see how they compare. If you really did run 109MPH, that is phenomenal. By the way, your best times in your M3 were consistant with my M3, 13.09 @ 107mph+

Dear Hotrod, tonight did three runs with temp 74 F, 1/4 tank full of Mobil 93. Examining the 3 runs, the faster one from yesterday showed that i held it in 3rd gear for longer closer to the red line whereas i shifted earlier in the 3 runs from today.

All runs from today are in the 12.8-12.9 range and seem consistent.

[catdog]

Just sold the 997S ... now my heart sinks whenever i see a porker...
Anyway, will wait for a GT3 or the mid-cycle 997S refresh with DFI and this time in white. 335xi filling in until then, can't wait for first snow to have some fun...

[karliejai]

wow nice time!

[milehigh5000]

whats this beast of a car look like?

[stillclaimndp]

i had the 04 996 40th anniversary, 345hp, rated 4.7-4.8 0-60, 12.8-13.0 1/4 mile rating, it's just a very different car from the 335i... not as much torque as my procede 335i but way more excitement after 6k rpms *hopefully no longer the case with v2 procede!

To the guy with the "m3 is a track car and 335i handles like a dumptruck":

It's the same car but without bmw's version of how to tune so you better hope you are wrong if you're getting an m3... I put 1/10 of the 20k cost difference into suspension and v2 procede, see you at the track you're gonna be so embarassed you bought an m3

Don't get me wrong, i get the point. m3 will sound, look, and feel great but I'm just saying bmw's mistake for making a lesser model with better performance (after 2k invested)

[stillclaimndp]

Originally Posted by stillclaimndp

i had the 04 996 40th anniversary, 345hp, rated 4.7-4.8 0-60, 12.8-13.0 1/4 mile rating, it's just a very different car from the 335i... not as much torque as my procede 335i but way more excitement after 6k rpms *hopefully no longer the case with v2 procede!

PIC:

[Raz335]

Those are some great times! Congrats catdog!

[stefano7171]

Originally Posted by stillclaimndp

i had the 04 996 40th anniversary, 345hp, rated 4.7-4.8 0-60, 12.8-13.0 1/4 mile rating, it's just a very different car from the 335i... not as much torque as my procede 335i but way more excitement after 6k rpms *hopefully no longer the case with v2 procede!

To the guy with the "m3 is a track car and 335i handles like a dumptruck":

It's the same car but without bmw's version of how to tune so you better hope you are wrong if you're getting an m3... I put 1/10 of the 20k cost difference into suspension and v2 procede, see you at the track you're gonna be so embarassed you bought an m3

Don't get me wrong, i get the point. m3 will sound, look, and feel great but I'm just saying bmw's mistake for making a lesser model with better performance (after 2k invested)

+1!!!!!!!!

[stefano7171]

Originally Posted by catdog

I think Ferrari and Porsche have mastered the sensory front, (and BMW M more so than Audi S/RS) where the whole driving experience is magical, and that's why the M3 feels special and faster yet the tuned "lowly" 335 can probably dispatch a few of these cars with less drama but perhaps also with less exhilaration. my .02 or .03

Last thing my m3 was smg fwiw.

Exactly, I fully agree with you. I tried a 997s the other day and it sounded so much more sportier than the feel I have on the proceded 335ì (e93 top closed, top open the feeling and sound are much more involving). On my old 996 carrera the feeling was similar to the 997.
Let us hope that V. 2.0 will feel the "sensory gap", maybe combined with the proper exhaust!

[hotrod182]

I think one of the biggest differences is the fact than the M engine will usually run very hard for much longer before overheating like the turbocharged 335i. When I had my M3 at the track in 106F weather, it would take 4 laps before the temp got to 250F. The 335i hits that in 70F weather in one lap. For most cases on the street however, for 95% of us, the 335i is fine.

[catdog]

Originally Posted by hotrod182

I think one of the biggest differences is the fact than the M engine will usually run very hard for much longer before overheating like the turbocharged 335i. When I had my M3 at the track in 106F weather, it would take 4 laps before the temp got to 250F. The 335i hits that in 70F weather in one lap. For most cases on the street however, for 95% of us, the 335i is fine.

Hotrod i have not run my car on the track but even pushing hard with the JB temp barely touches 250 and since break-in has not gone over 250; not sure if the lack of auto helps a little but i do not have an oil cooler.
Anyway, the 335i is not designed to be a track car out of the box, it's just a super fast all-around sleeper....

[purplewidow]

no gto can break into the 12's stock are you crazy...every track time i have seen on all the 6.0's is high they can't even break into the 13's!!!!!!!!! and to the above track car comment maybe not but it is a lousy 1 or 2 seconds slower than the last m3 in the "GREEN HELL"...that's pretty damn good if you ask me!!!!! and Forced induction engines always run warmer so get a life people!!!!!!!!!

[hotrod182]

I think the turbos are fine for street cars. Yes my car is a steptronic, which probably makes it runner hotter compared to a manual. My friend races in the Porsche Cup Series (He has an Enzo also), I think he has a $200 GT3 RSR CUP or something like that. He told me, the 911 Turbos would not last in the same kind of racing because of the extreme heat that comes along with forced induction. And also remember the temps in Germany are generally cooler than they are here when they are track testing. Just look at the various documented overheating/limp mode issues. I think high engine temperature is the biggest achilles heel of the 335i.

[jcarlucci1]

Originally Posted by purplewidow

no gto can break into the 12's stock are you crazy...every track time i have seen on all the 6.0's is high they can't even break into the 13's!!!!!!!!! and to the above track car comment maybe not but it is a lousy 1 or 2 seconds slower than the last m3 in the "GREEN HELL"...that's pretty damn good if you ask me!!!!! and Forced induction engines always run warmer so get a life people!!!!!!!!!

You are the one who REALLY needs to get a life..every post you make is an incoherent rambling mess calling people idiots and losers and telling them how stupid they are. GROW UP

[hotrod182]

Originally Posted by jcarlucci1

You are the one who REALLY needs to get a life..every post you make is an incoherent rambling mess calling people idiots and losers and telling them how stupid they are. GROW UP

I was actually kind of wondering what he was trying to refer to. I thought perhaps I missed a few posts, LOL.

[jcarlucci1]

I don't know what he's talking about either just tired of his ignorant posts

[loayo]

I want to share some information which maybe helpful.

As I understand, GTech offers instantanious trap speed at 1/4mi whereas as an NHRA track measures the average speed of the last 60 feet. Obviously, Gtech will offer a slighly higher trap speed.

I hope this helps.

From my experience, this can be 5 mph or less of a difference.