6.9s for My Humble 523i
- Thread starter titanic
- Start date
Re: 6.9s for My Humble 523i
cool....6.9s, that's the timing of my Z4, is yr the LCI? How to acheive that?
titanic;323836 said:Putting my GTech Pro to good use, I did a quarter mile run in my 523i. Best time was 6.9s from 0-100km (6.6s 0-60mph). 1/4 mile ET was 14.8s. Not bad for a 2.5l in-line with some modest mods. BM Rocks!
cool....6.9s, that's the timing of my Z4, is yr the LCI? How to acheive that?
titanic
Well-Known Member
Re: 6.9s for My Humble 523i
My mods:
1) aFe cold air intake (great bang for the buck!)
2) Remus exhaust (love the rumble!)
3) ECU tuning by J4C
I have OEM 19" 152I rims so they are pretty heavy. You guys with forged should be able to run even faster.
jamestan;324141 said:
My mods:
1) aFe cold air intake (great bang for the buck!)
2) Remus exhaust (love the rumble!)
3) ECU tuning by J4C
I have OEM 19" 152I rims so they are pretty heavy. You guys with forged should be able to run even faster.
titanic
Well-Known Member
Re: 6.9s for My Humble 523i
Yes I set my weight, but weight is not needed to calculate 0-100. It's only good for estimating power and torque. Getting a perfect launch is not easy and that plays a big part in the timing. According to GTech, accuracy of their 0-60mph is within +/-0.2mph, and accuracy of their 1/4 mile ET is within +/-0.01 second.
hetraa;324261 said:
Yes I set my weight, but weight is not needed to calculate 0-100. It's only good for estimating power and torque. Getting a perfect launch is not easy and that plays a big part in the timing. According to GTech, accuracy of their 0-60mph is within +/-0.2mph, and accuracy of their 1/4 mile ET is within +/-0.01 second.
grappleking88
Member
Re: 6.9s for My Humble 523i
Hi Titanic,
Congrats to your new found power and improved 0-100kph timing. After the three mentioned mods, did you dynoed your car and what's the new bhp and torque? Btw, any problems or glitches with the remapping done at J4C and what sort of piggyback system or brand is that? Interested to know more about the ECU remapping from end-users.
Thank you.
Hi Titanic,
Congrats to your new found power and improved 0-100kph timing. After the three mentioned mods, did you dynoed your car and what's the new bhp and torque? Btw, any problems or glitches with the remapping done at J4C and what sort of piggyback system or brand is that? Interested to know more about the ECU remapping from end-users.
Thank you.
titanic
Well-Known Member
Re: 6.9s for My Humble 523i
I didn't bother to dyno. I am more interested in 0-100 and 1/4 mile ET. They are more real and tangible to me. And I believe the margin of error in measuring 0-100 is much less than in measuring hp number from a chassis dyno. Doing a dyno, you get three runs, you can pick the best or take the average. With a GTech Pro, you can do as many runs as you care until you are completely satisfied.
grappleking88;324336 said:
I didn't bother to dyno. I am more interested in 0-100 and 1/4 mile ET. They are more real and tangible to me. And I believe the margin of error in measuring 0-100 is much less than in measuring hp number from a chassis dyno. Doing a dyno, you get three runs, you can pick the best or take the average. With a GTech Pro, you can do as many runs as you care until you are completely satisfied.
Re: 6.9s for My Humble 523i
I wonder if the 530 does sub 5s with the same mods.Very impressive indeed.
I wonder if the 530 does sub 5s with the same mods.Very impressive indeed.
