N54Tech.com - International Turbo Racing Discussion
(#51)
Old
csu87 csu87 is offline
Junior Member
 
Posts: 153
Join Date: Dec 2013
Car: 09 335xi
Default 08-24-2015, 02:27 PM

Pulled from another site. Just saying, if this is a true time, you are flying but only end up with an 11 second 1/4mile and that is kinda crazy, especially when you take a look at the 0-60mph conversion. Most the 1.3 and under 0-60ft that ive seen are getting low 10s/high 9s in the 1/4mile.

Quote:
This is assuming a somewhat linear rate of acceleration, with a FAST 1-2 shift. It's in line with what I have measured with a G-tech accelerometer.

Have fun!

2.3 second 60' time = 35.5 mph @60' = 7.0 second 0-60 time
2.2 second 60' time = 37.1 mph @60' = 6.5 second 0-60 time
2.1 second 60' time = 38.9 mph @60' = 5.9 second 0-60 time
2.0 second 60' time = 40.9 mph @60' = 5.2 second 0-60 time
1.9 second 60' time = 43.0 mph @60' = 4.6 second 0-60 time
1.8 second 60' time = 45.5 mph @60' = 4.0 second 0-60 time
1.7 second 60' time = 48.1 mph @60' = 3.4 second 0-60 time
1.6 second 60' time = 51.1 mph @60' = 2.9 second 0-60 time
1.5 second 60' time = 54.5 mph @60' = 2.2 second 0-60 time
1.4 second 60' time = 58.4 mph @60' = 1.5 second 0-60 time
1.36 second 60' time = 60.0 mph @60' = 1.36 second 0-60 time
1.3 second 60' time = 62.9 mph @60' = 1.2 second 0-60 time
1.2 second 60' time = 68.1 mph @60' = 1.1 second 0-60 time
1.1 second 60' time = 74.3 mph @60' = 0.9 second 0-60 time
1.0 second 60' time = 81.8 mph @60' = 0.7 second 0-60 time


Here's the math:

0-60 is a function of traction, engine power, rear end gearing, shifting ability.

You can kind of back out a 0-60 from a 60 ft time. For example, if you assume a constant acceleration over the 60 ft time (which is not always a good assumption), then you can assume that your time to distance function is given by the double integral of a constant acceleration:

0.5 * acceleration*(60ft time)^2 = 60 ft

Solving this gives acceleration in ft / sec^2 of

a = 120 ft / (60ft time)^2

Since 1 MPH is about 1.47 ft/sec, assuming the constant acceleration, noting velocity is acceleration times time, and solving for the math,

Velocity at end of 60 ft is approximately 81.82 / 60ft-time (units ignored for simplicity).

In other words, take your 60 ft time, divide it into 81.82, and that will give you an approximate MPH at the end of the 60 ft.
Reply With Quote
(#52)
Old
csu87 csu87 is offline
Junior Member
 
Posts: 153
Join Date: Dec 2013
Car: 09 335xi
Default 08-24-2015, 02:31 PM

Quote:
Originally Posted by martymil
Look at drag times they have come close
1.5 is the closest for a 135, and .2 is a huge difference in 0-60fts
1.57 for a 335 and 1.59 for a 335xi
Reply With Quote
(#53)
Old
martymil's Avatar
martymil martymil is offline
The Backyard Mechanic
 
Posts: 219
Join Date: May 2015
Car: BMW 1 Series M
Default 08-24-2015, 02:32 PM

Quote:
Originally Posted by LostMarine
That car did not do a 1.3 60'. Plain and simple. Can domestics and other cars do it? Sure, not consistently. And that's with beefed up drag suspensions on tires at a prepped track. This guy has none of those combined.

Here's the just of it, show us a BMW, any year that has cut 1.3-1.4 60's. Any power level

The problem is that people that don't know and have only been on the forums, are suddenly experts simply because they read another guy state something similar.
Sir how the hell do you know what I have or haven't got, without knowledge you fall into the category you just mentioned.

Please stick to the facts

Really domestics can do it but Germans cars can't, why not ?

Maybe because no one has tried till now, everything is possible as long as your wallet is big enough.
Reply With Quote
(#54)
Old
martymil's Avatar
martymil martymil is offline
The Backyard Mechanic
 
Posts: 219
Join Date: May 2015
Car: BMW 1 Series M
Default 08-24-2015, 02:35 PM

Quote:
Originally Posted by csu87
Pulled from another site. Just saying, if this is a true time, you are flying but only end up with an 11 second 1/4mile and that is kinda crazy, especially when you take a look at the 0-60mph conversion. Most the 1.3 and under 0-60ft that ive seen are getting low 10s/high 9s in the 1/4mile.
That's pretty much true if you have a very linear acceleration but this does not hold so true on turbo cars especially when you spike the turbo
Reply With Quote
(#55)
Old
nyt nyt is offline
Senior Member
 
Posts: 537
Join Date: Jun 2014
Car: 335ix
Default 08-24-2015, 04:26 PM

lol spike the turbo? wtf does that even mean? you're delusional. Nobody on this platform is cutting 1.3 second 60' times. It doesn't matter what you've done to your car, as there's no way you're hooking hard enough with those ridiculous 20" wheels and street tires. There's absolutely no chance. You clearly have no idea what it actually takes to cut a 1.3.

EDIT: Looking at your logs, you don't even have a chance of cracking the 500whp mark, likely under 450. There's no chance you ran that time. You're targeting 18psi and actually think you're in the 10s? Get real. Your IATs are sky high and you have timing pulls on the top end as well.


2010 335ix - speedtech 6466g2, cams, ported head, built bottom end, 7.5in hd ic, jb4, pi, fuel-it stg3, upgraded 6hp21+cooler, pr coils

Last edited by nyt; 08-24-2015 at 04:33 PM..
Reply With Quote
(#56)
Old
Dirty Dog's Avatar
Dirty Dog Dirty Dog is offline
Junior Member
 
Posts: 224
Join Date: Jan 2011
Car: 135i
Default 08-24-2015, 04:48 PM

Quote:
Originally Posted by martymil
Sir how the hell do you know what I have or haven't got, without knowledge you fall into the category you just mentioned.
Stop acting like a fool. Nothing out of the ordinary is done to your stock turbo 135i. Your car will run a high 11 or low 12 with the correct timing and that's ok. You need to understand it and get to another track.


135i - JB4 15ohm l Mr 5 Intake l AA C@tless ********* l ETS Intercooler l BMS Methanol Injection l Berk Tech Mids l Berk Tech Axleback l BMS OCC l ER CP l Turbosmart BOV's. SOLD

335i DCT - JB4 G5 ISO l AA C@tless ********* l ETS Intercooler l Custom Intake l Meth l BMS E85 Flash l BMS OCC l ER CP l Walbro 255 l Turbosmart BOV's. CURRENT
Reply With Quote
(#57)
Old
martymil's Avatar
martymil martymil is offline
The Backyard Mechanic
 
Posts: 219
Join Date: May 2015
Car: BMW 1 Series M
Default 08-24-2015, 07:01 PM

Quote:
Originally Posted by nyt
lol spike the turbo? wtf does that even mean? you're delusional. Nobody on this platform is cutting 1.3 second 60' times. It doesn't matter what you've done to your car, as there's no way you're hooking hard enough with those ridiculous 20" wheels and street tires. There's absolutely no chance. You clearly have no idea what it actually takes to cut a 1.3.

EDIT: Looking at your logs, you don't even have a chance of cracking the 500whp mark, likely under 450. There's no chance you ran that time. You're targeting 18psi and actually think you're in the 10s? Get real. Your IATs are sky high and you have timing pulls on the top end as well.
You really have to learn how to read or get a pair of reading glasses.

Please re read what I'm wrote

Quote:
Originally Posted by Dirty Dog
Stop acting like a fool. Nothing out of the ordinary is done to your stock turbo 135i. Your car will run a high 11 or low 12 with the correct timing and that's ok. You need to understand it and get to another track.
Your acting like a fool to think you know what is done to my car, your on the other side of the earth and you think you know what I have done to the car, like hell I would tell you anyone especially when you are acting like you know it all and I would not anyway.
Reply With Quote
(#58)
Old
martymil's Avatar
martymil martymil is offline
The Backyard Mechanic
 
Posts: 219
Join Date: May 2015
Car: BMW 1 Series M
Default 08-24-2015, 07:08 PM

If you look at the video closely and slow it right down I cross the beam at 1sec he crosses at 2 sec mark there is a large enough distance that the times are legit.

so if my sixty is out so is his, so he would be running a 2.5 sixty against my 1.8 from what you guys are stating I highly doubt that.

Get yourself a video player with a timer and slow motion.
Reply With Quote
(#59)
Old
martymil's Avatar
martymil martymil is offline
The Backyard Mechanic
 
Posts: 219
Join Date: May 2015
Car: BMW 1 Series M
Default 08-24-2015, 07:36 PM

Just got off the phone

I finally got a straight answer out of derek in charge of timing, there is a timing issue with the sixty foot light beam but it doesn't effect the ET he said, I cant see how that is possible ah well he finally admitted it though.

If he only admitted it in the first place when I spoke to him.

Still it only effects the left lane not the right at least the ET looks legit maybe.

I'll see if I can run the right lane only from now on, the only problem with the right lane its like a goat track and I break traction in it.

Last edited by martymil; 08-24-2015 at 07:41 PM..
Reply With Quote
(#60)
Old
nyt nyt is offline
Senior Member
 
Posts: 537
Join Date: Jun 2014
Car: 335ix
Default 08-24-2015, 07:52 PM

The ET is off as well. You're not running 10s at 118mph.


2010 335ix - speedtech 6466g2, cams, ported head, built bottom end, 7.5in hd ic, jb4, pi, fuel-it stg3, upgraded 6hp21+cooler, pr coils
Reply With Quote
(#61)
Old
martymil's Avatar
martymil martymil is offline
The Backyard Mechanic
 
Posts: 219
Join Date: May 2015
Car: BMW 1 Series M
Default 08-24-2015, 08:03 PM

I never said I ran 10's

please read again
Reply With Quote
(#62)
Old
nyt nyt is offline
Senior Member
 
Posts: 537
Join Date: Jun 2014
Car: 335ix
Default 08-24-2015, 08:06 PM

Quote:
Originally Posted by martymil
I never said I ran 10's

please read again
That would be my mistake, someone mentioned 10.8 somewhere.


2010 335ix - speedtech 6466g2, cams, ported head, built bottom end, 7.5in hd ic, jb4, pi, fuel-it stg3, upgraded 6hp21+cooler, pr coils
Reply With Quote
(#63)
Old
martymil's Avatar
martymil martymil is offline
The Backyard Mechanic
 
Posts: 219
Join Date: May 2015
Car: BMW 1 Series M
Default 08-24-2015, 08:14 PM

I just wish they admitted they had a fault in the first place, all this could have been avoided.

Here is a time slip from the same night with wheel spin from the right lane.
Attached Images
 
Reply With Quote
(#64)
Old
Nugs Nugs is offline
Junior Member
 
Posts: 393
Join Date: Apr 2013
Car: 2011 135i
Default 08-24-2015, 10:27 PM

1.7 is still a good 60'.
1.3 was always unbelievable.
Reply With Quote
(#65)
Old
LostMarine's Avatar
LostMarine LostMarine is offline
Senior Member
 
Posts: 689
Join Date: Jun 2009
Car: E92 DCT ///M
Default 08-24-2015, 10:55 PM

I've seen timing system errors at every track, its not un heard of. Please tell us more about all your custom stuff, a 1.3 isn't happening.

If you don't have a high stall with drag race valved shocks, corner balanced with custom spring lengths and weight,a 4 link rear, please stop trying to justify it.

If you do have all this custom work, why wouldn't you share it?
Reply With Quote
(#66)
Old
LostMarine's Avatar
LostMarine LostMarine is offline
Senior Member
 
Posts: 689
Join Date: Jun 2009
Car: E92 DCT ///M
Default 08-24-2015, 11:09 PM

faulty 60' reading will certainly affect the ET. If the 60' read slow by say .2, then that is most likely the starting beam tripped and didn't report it for a delay of .2.

Meaning the total ET ( and any subsequent ET reading-330/660/1000 etc) is off by at least .2.

I don't believe the .1 60=.2ET rule applies here as that is a function of the cars performance and not a mechanical reading of it.

So that puts ET at BEST an 11.4 with a true 1.5 60', which doable, but not likely as you would break oem parts if you didn't upgrade.. Ask me how I know
Reply With Quote
(#67)
Old
martymil's Avatar
martymil martymil is offline
The Backyard Mechanic
 
Posts: 219
Join Date: May 2015
Car: BMW 1 Series M
Default 08-24-2015, 11:12 PM

I never tried to justify anything to anyone but everyone is trying to say I have nothing done to my car, all I said how the hell would anyone know what has been done or what hasn't.

Well I got my hands on a vbox sport since the track cant be trusted with their timing either left or right lane they lied, finally admitted they have a fault, now they are still charging people for racing with faulty timing. how is this justifiable.

I'll still go to the track and will be comparing the data from the vbox against the time slip
as its still the safest place to race.
Reply With Quote
(#68)
Old
csu87 csu87 is offline
Junior Member
 
Posts: 153
Join Date: Dec 2013
Car: 09 335xi
Default 08-25-2015, 12:46 AM

Lol. So much for that...
Reply With Quote
(#69)
Old
LostMarine's Avatar
LostMarine LostMarine is offline
Senior Member
 
Posts: 689
Join Date: Jun 2009
Car: E92 DCT ///M
Default 08-25-2015, 09:33 AM

Quote:
Originally Posted by martymil
I never tried to justify anything to anyone but everyone is trying to say I have nothing done to my car, all I said how the hell would anyone know what has been done or what hasn't.

Well I got my hands on a vbox sport since the track cant be trusted with their timing either left or right lane they lied, finally admitted they have a fault, now they are still charging people for racing with faulty timing. how is this justifiable.

I'll still go to the track and will be comparing the data from the vbox against the time slip
as its still the safest place to race.
except when you claimed those of us with experience didnt know..

Quote:
Originally Posted by martymil
Sir how the hell do you know what I have or haven't got, without knowledge you fall into the category you just mentioned.

Please stick to the facts

Really domestics can do it but Germans cars can't, why not ?

Maybe because no one has tried till now, everything is possible as long as your wallet is big enough.

lots of info out there if you want to improve your 60', just got to look for it
Reply With Quote
(#70)
Old
musc's Avatar
musc musc is offline
 
Posts: 770
Join Date: Jan 2008
Car: 335is DCT
Default 08-25-2015, 09:49 AM

lol
Reply With Quote
(#71)
Old
martymil's Avatar
martymil martymil is offline
The Backyard Mechanic
 
Posts: 219
Join Date: May 2015
Car: BMW 1 Series M
Default 08-25-2015, 09:51 AM

Quote:
Originally Posted by LostMarine
except when you claimed those of us with experience didnt know..
Where did I claim that some of you didn't know ?

Some people on here said

I don't know anything
I'm inexperienced
Called me names

A good way to meet people

and you guys wonder why I don't want to share any info

Way to go
Reply With Quote
(#72)
Old
martymil's Avatar
martymil martymil is offline
The Backyard Mechanic
 
Posts: 219
Join Date: May 2015
Car: BMW 1 Series M
Default 08-25-2015, 09:57 AM

Quote:
Originally Posted by LostMarine
lots of info out there if you want to improve your 60', just got to look for it
I don't need to improve my 60' as all I posted was a quick time slip.

I'm trying to run and improve my time in full street trim and why I don't run full slicks is exactly what happened to your gearbox and driveshaft's.

Now if someone could run fast times in street trim that would be an milestone and not a stripped out drag racer on full slicks
Reply With Quote
(#73)
Old
Trickcruiser's Avatar
Trickcruiser Trickcruiser is offline
Senior Member
 
Posts: 525
Join Date: Oct 2009
Car: 335i
Default 08-25-2015, 09:57 AM

Glad this was cleared up. I did not see it possible with the logs and videos as they just did not look 1.3 60' INSANE. Kinda feel bad for the OP as I am sure he truly thought he did something really ground breaking here... From the looks of things, I think he has a solid high 11 - low 12 car. That is truly no joke for a street car IMHO.

Are the times still posted to DragTimes?


Reply With Quote
(#74)
Old
martymil's Avatar
martymil martymil is offline
The Backyard Mechanic
 
Posts: 219
Join Date: May 2015
Car: BMW 1 Series M
Default 08-25-2015, 10:00 AM

No I pulled the times of drag times, will be posting up again when I get my vbox sport and compare to the slips to see how far off the track timing is.
Reply With Quote
(#75)
Old
AWSAWS's Avatar
AWSAWS AWSAWS is offline
Demigod
 
Posts: 1,550
Join Date: Aug 2014
Car: 335i MSport DCT
Default 08-25-2015, 10:16 AM

Funny thread. Even funnier person at the heart of the controversy.

Inaccurate timing. End of thread...


UK FBO 335i, ̶V̶T̶T̶ ̶G̶C̶s̶ China 19T, JB4, PI meth, BMS CP, OCC, Braided brake lines. Diff Lockdown. TMAP sensor, custom bucketless stage2

11.79@119mph on stockers, CP meth (UK, Santa Pod)
11.74@129mph on GCs, custom port meth injection.
Reply With Quote
Reply


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump




vBulletin Skin developed by: vBStyles.com
Copyright 2007 - 2020, N54tech.com