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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > N54 Turbo Engine / Drivetrain / Exhaust Modifications - 335i > Trip to the drag strip tonight with V3



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      06-28-2008, 02:24 PM   #23
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Quote:
Originally Posted by Sniz View Post
Clem on here was also running Generals and pulled a 1.8x 60 ft which would have been a great run, but he missed 2nd!!!!

Just go ahead and keep rubbing it in, will ya! 1.861 to be exact and still ran 13.01 @ 109.64. My one shot at glory and I f'd it up!!
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      06-28-2008, 03:57 PM   #24
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Quote:
Originally Posted by Clem View Post
Just go ahead and keep rubbing it in, will ya! 1.861 to be exact and still ran 13.01 @ 109.64. My one shot at glory and I f'd it up!!
Did I mention Clem missed 2nd gear??

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      06-28-2008, 03:58 PM   #25
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Did I mention Clem missed 2nd gear??



Thats just wrong Sniz....
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      06-28-2008, 04:45 PM   #26
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Quote:
Originally Posted by hotrod182 View Post
This was on the sedan. With the R switch on, and higher octane and DRs I ran the 12.13. Stock intake/exhaust. The one run I aborted I believe would have been in the 11's, well over 91mph in the 1/8. My 08 coupe runs 12.8's on 91 octane right now. And thats with RFTs. By the way DJ, is your coupe Monaco also, or black? Do you have any idea if the cone filters helped you at all? Would have been cool to see what it would do on the stock airbox.
Yes my car is Monaco and black.

Im not sure if they make that much of a difference or not. But they did make more power on the dyno, and my car feels amazing right now.
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      06-28-2008, 07:21 PM   #27
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Quote:
Originally Posted by Sniz View Post
Did I mention Clem missed 2nd gear??

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      06-28-2008, 08:13 PM   #28
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Wow, some nice runs
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      06-28-2008, 08:28 PM   #29
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Quote:
Originally Posted by Digital.James View Post
Im thinking about down grading to 18s so I can run a bit of a taller tire. I guess it would really help with everything, street/drag and handling.

I would love to get it down to 1.7, but every time I try to launch I see my $$$$$ PS2s go up in smoke!
I went with 17 inch wheels for the rear when I go to the strip.
There are some 17" wheels that will fit and this is key.
You get a taller tire and they're less expensive.
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      06-28-2008, 10:26 PM   #30
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I just realized that you may be running an aftermarket intercooler. Did you notice any improvement at all with that? Any HP increase estimates?
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      06-29-2008, 12:24 AM   #31
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Quote:
Originally Posted by Mr. 5 View Post
I went with 17 inch wheels for the rear when I go to the strip.
There are some 17" wheels that will fit and this is key.
You get a taller tire and they're less expensive.
I want a good combination of strip and street, so 18s may be the answer for me. But 19s look so good



Quote:
Originally Posted by hotrod182
I just realized that you may be running an aftermarket intercooler. Did you notice any improvement at all with that? Any HP increase estimates?
Yes, nothing huge though. IC + dual cones netted me +18whp with the JBX. I havnt been able to dyno it with the IC and V3. I would assume I would have a larger gain with the V3 since Im running higher boost than my JBX setup.
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      06-29-2008, 12:58 AM   #32
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I just picked up my V3 from Tek818.
What a cool guy!

I might make it to Irwindale Speedway this Thursday, but that's only the 1/8th.
The thing that's great about the 1/8th is practicing the launches.
For as much power as we have, I believe that if we get 1.7s on the launch then we are hitting low 12s easily in the 1/4.
1.6s are possible 11s.

I'll keep in touch, and great job again, Digital!
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      06-29-2008, 07:35 AM   #33
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Less than perfect launch is understandable without DRs, but shouldn't the trap be better? Stg2 V3 + IC...
Are these the best V3 results so far?
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      06-29-2008, 10:43 AM   #34
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Can't see the time slips! What did he run?
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      06-29-2008, 10:54 AM   #35
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He ran a 12.86 at 111.8 mph.
Interesting because I ran 12.38 at 111.8 mph, but I had a 1.8 60 foot.
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      06-29-2008, 11:05 AM   #36
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Quote:
Originally Posted by Lane View Post
Less than perfect launch is understandable without DRs, but shouldn't the trap be better? Stg2 V3 + IC...
Are these the best V3 results so far?
Being that he was on pump gas and admitted to not shifting hard thats a pretty good trap. Race gas makes a very large difference IMO at the strip. The car acts like a puppy on crack when you put in the good stuff .
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      06-29-2008, 11:06 AM   #37
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Quote:
Originally Posted by Mr. 5 View Post
He ran a 12.86 at 111.8 mph.
Interesting because I ran 12.38 at 111.8 mph, but I had a 1.8 60 foot.
its all about the launch......all the well modded 335's are trapping 110-114, but there is a full second difference in their times due to the launch.

for example:

I ran a 12.79 at 113.5mph w/ a bad launch and short shifting at 5000rpms in 3rd and a limp mode in 4th before the finish line. my 60 foot was over 2 seconds. The very next run I ran a 12.62 at only 110.xmph and even shifted into 5th gear on that run! The difference in the et was due to my 60 ft being in the low 1.9x range. Even w a very short shift in 3rd and 4th (who the hell shifts in 5th gear at the strip) my car still put down its best et to date. Cant wait to run it full out with slicks.....

Moral - 60 ft times are huge.
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      06-29-2008, 11:33 AM   #38
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Quote:
Originally Posted by Mr. 5 View Post
He ran a 12.86 at 111.8 mph.
Interesting because I ran 12.38 at 111.8 mph, but I had a 1.8 60 foot.
For some reason, the lower the 60 foot, the lower your trap will be but better ET time.

So, if you would have had the same 60 foot as him, theoretically, you would have trapped higher.

I have ran at the same track with Digital James, and it's a fairly slow track.

I ran 12.85 @ 111 mph with just V2 and race gas (92% values), but my 60 foot was 1.85.
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      06-29-2008, 12:44 PM   #39
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Quote:
Originally Posted by Mr. 5 View Post
He ran a 12.86 at 111.8 mph.
Interesting because I ran 12.38 at 111.8 mph, but I had a 1.8 60 foot.
I believe the reason my trap is so slwo is because I almost run into the rev limiter in 3rd gear on my runs, so I short shift into 4th about 50ft from the finish line. Car is not geared so well for the drag strip with my 19s on
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      06-29-2008, 01:36 PM   #40
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Quote:
Originally Posted by SteelTorque View Post
For some reason, the lower the 60 foot, the lower your trap will be but better ET time.

So, if you would have had the same 60 foot as him, theoretically, you would have trapped higher.

I have ran at the same track with Digital James, and it's a fairly slow track.

I ran 12.85 @ 111 mph with just V2 and race gas (92% values), but my 60 foot was 1.85.
Sometimes I believe this and sometimes I don't. The times that I do are the times that I see it for myself, but when I think of it mathematicaly, it just doesn't make sense.
For example, the given D=VT.

Let's look at comparing different 60 foots (1.7 and 2.0):

60 foot = V(1.7 seconds)
V = 35.29 feet/second

60 foot = V(2.0)
V = 30 feet/second

The velocity of the 1.7 60 foot car is greater than the velocity of the 2.0 60 foot, so therefore the velocity should be carried along to the end of the 1/4 mile.

Now, I know that what I did is very simplistic because we are talking about acceleration here and not just a constant velocity. But what is acceleration? It's the derivative of Velocity, which is the change of velocity over time.
So, do the same thing as above and you'll get the same answer because time is 0 at 0 feet.

I still understand though that it seems to be the oposite when I start comparing slips.
I have had plenty of run with great 60 foots and the trap is 90% of the time lower than the traps with high 60 foots.
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      06-29-2008, 01:49 PM   #41
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Quote:
Originally Posted by Digital.James View Post
I believe the reason my trap is so slwo is because I almost run into the rev limiter in 3rd gear on my runs, so I short shift into 4th about 50ft from the finish line. Car is not geared so well for the drag strip with my 19s on
Its kinda funny when a ~112mph trap can be considered low for a street trim, summertime, pump gas run... :LOL:

This means that we are bound to see solid 114-116mph runs with slight weigh reduction, race gas, race gas map, drag radials, cold temps, etc.

Good job OP!

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      06-29-2008, 04:33 PM   #42
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On my car, 3rd gear will only take you up to about 100mph, so you need to make the shift to 4th gear. My car runs about 12.83 @ 110.43 on 91 pump gas and 19" and on street tires. With the R switch on and fuel I gain major HP. (113-114mph). But if I could really gain 18hp with an intercooler and intake, that would push my car to about 112mph on pump gas. That wouldn't be bad at all.
By the way, they had a build up of the new Challenger 6.2L Hemi with a Diablo Tune, Borla, and CAI. They said they were "so close" to dipping into the 12's @ 109mph. Let me tell you, how great is it when our cars can run with engines twice the displacement of ours!
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Last edited by hotrod182; 06-29-2008 at 05:47 PM..
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      06-29-2008, 04:46 PM   #43
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Quote:
Originally Posted by shiv@vishnu View Post
Its kinda funny when a ~112mph trap can be considered low for a street trim, summertime, pump gas run... :LOL:

This means that we are bound to see solid 114-116mph runs with slight weigh reduction, race gas, race gas map, drag radials, cold temps, etc.

Good job OP!

Shiv
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I agree, but if you are one to think about the quicker the 60 foot the lower the trap then then the drag radials won't help with the trap speed.
Everything else that you mentioned makes perfect sense.
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      06-29-2008, 04:49 PM   #44
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Quote:
Originally Posted by hotrod182 View Post
On my car, 3rd gear will only take you up to about 100mph, so you need to make the shift to 4th gear. My car runs about 12.83 @ 110.43 on 91 pump gas and 19" and on street tires. With the R switch on and fuel I gain major HP. (113-114mph). But if I could really gain 18hp with an intercooler and intake, that would push my car to about 112mph on pump gas. That wouldn't be bad at all.
By the way, the had a build up of the new Challenger 6.2L Hemi with a Diablo Tune, Borla, and CAI. They said they were "so close" to dipping into the 12's. Let me tell you, how great is it when our cars can run with engines twice the displacement of ours!
Another thing to think about is that the trap is not the speed at the end of the 1/4 mile. It's an average speed between 2 points.
The speed you are going at the very end of the 1/4 mile is higher than your trap.
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