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Stock 2012 BE 11.07@127


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#1 Big Red Posted 07 February 2012 - 09:33 AM

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This was the first pass ever in the car with around 1k miles on our 2012 BE GTR. Stock with the exception of 20" Volk VRG2s with Nitto Invos. On the second pass it didn't launch as well and went about 11.2@126. The other car is a friends bolt-on ZR1. I launched it in R-R-R, when the track opens back up we'll try R-Comf-R. This was with about half a tank of fuel and shifting manually.

We can't figure out why the trap speed is so high. Are the VRG2s significantly lighter than our stock BE wheels?

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1.654 60 foot
7.100 @ 95.79 mph
11.079 @ 127.33 mph



#2 BoostCrzy Posted 07 February 2012 - 09:41 AM

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holy cow thats fast!....


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#3 A418t81 Posted 07 February 2012 - 09:46 AM

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Your eighth mile trap speeds are WAY low to be trapping 127 on the big end in a GTR.  You should be in the 102 range at least.  32 mph on the big end isn't happening with stock hp either.  Something seems funny about this slip, may be the track timing equipment calibration.  Anyway, glad you guys had fun.


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#4 FikseGTS Posted 07 February 2012 - 09:56 AM

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nice run, something does seem off with the traps....  ET is right on given the 60'.....



#5 Big Red Posted 07 February 2012 - 10:12 AM

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 A418t81, on 07 February 2012 - 09:46 AM, said:

Your eighth mile trap speeds are WAY low to be trapping 127 on the big end in a GTR.  You should be in the 102 range at least.  32 mph on the big end isn't happening with stock hp either.  Something seems funny about this slip, may be the track timing equipment calibration.  Anyway, glad you guys had fun.

It was at Atco Raceway (NJ), I'm pretty sure the 1/4 time/speed is accurate. It was very close to a similar/slightly quicker stock 2012 pass I saw on dragtimes he went 11.074@124 with a slightly better 60' (1.646) but only a 124.45 mph trap like most. His 1/8th was a 7.082 @ 97.88 mph! (http://www.dragtimes...ml?resultpage=5).

What stumps me is I'm not sure how the car picked up 3 mph over his in the 1/4 when it was already down 2 mph at the 8th mark. I'm not very big 5'7, if my dad was in the car I'm sure the pass would be slightly slower. Could it be the VRG2s due to less rotational mass? Maybe the ZR1 reeling me in? haha



#6 MC Posted 07 February 2012 - 10:32 AM

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thats a great ET.... just  a bit lower  1.60  60ft would give you 10's no doubt......  maybe less gas and possibly  comfort mode like you mentioned will get you there.....  im  about  5 7 too weight about 135 so thats always a bonus at the strip!

as for the   trap...  its certainly the  highest weve seen and might be just a bit off in relation to the  1/8th like others have said...  the average mph pick up on a stock 2012 is around  24-26 mph(ish)....  when i  trapped  125.5  which i think is the  highest  stock weve seen until this...  my  1/8th  was only  99.2... the  same car at a different  track  trapped  102.9 and 102.4 in the  1/8th in cooler weather..... those were probably  126+ runs based on what ive seen

are you planning on running again soon? would be interesting to see what you  do next time out


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#7 BoostCrzy Posted 07 February 2012 - 10:52 AM

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you should weigh the wheel/tire combo and compare to stock...obviously that will help some....


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#8 Big Red Posted 07 February 2012 - 11:17 AM

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 MC, on 07 February 2012 - 10:32 AM, said:

thats a great ET.... just a bit lower 1.60 60ft would give you 10's no doubt...... maybe less gas and possibly comfort mode like you mentioned will get you there..... im about 5 7 too weight about 135 so thats always a bonus at the strip! as for the trap... its certainly the highest weve seen and might be just a bit off in relation to the 1/8th like others have said... the average mph pick up on a stock 2012 is around 24-26 mph(ish).... when i trapped 125.5 which i think is the highest stock weve seen until this... my 1/8th was only 99.2... the same car at a different track trapped 102.9 and 102.4 in the 1/8th in cooler weather..... those were probably 126+ runs based on what ive seen are you planning on running again soon? would be interesting to see what you do next time out

Every car is different, especially since these are made by different people so the tolerances aren't as identical. There definitely are some factory freaks out there. 102 mph in the 1/8th is flying! Atco opens back up on Feb. 24th and they aren't very strict about cages so we will definitely be doing all we can to break into the 10s before we start with the mods later this spring. I'll be sure to post the results, hopefully even a video of the passes.



 BoostCrzy, on 07 February 2012 - 10:52 AM, said:

you should weigh the wheel/tire combo and compare to stock...obviously that will help some....

Thats a good idea, especially since it will be on the same scale. I'll weigh both the fronts and rears of each. The VRG2s are 20x10/11 if I remember correctly, I'll double check the sizes and tire sizes of the Nitto Invos when I get home.

What sizes are the stock BE wheels and tires? (Front and Rear)



#9 A418t81 Posted 07 February 2012 - 11:25 AM

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 Big Red, on 07 February 2012 - 10:12 AM, said:

It was at Atco Raceway (NJ), I'm pretty sure the 1/4 time/speed is accurate. It was very close to a similar/slightly quicker stock 2012 pass I saw on dragtimes he went 11.074@124 with a slightly better 60' (1.646) but only a 124.45 mph trap like most. His 1/8th was a 7.082 @ 97.88 mph! (http://www.dragtimes...ml?resultpage=5).

What stumps me is I'm not sure how the car picked up 3 mph over his in the 1/4 when it was already down 2 mph at the 8th mark. I'm not very big 5'7, if my dad was in the car I'm sure the pass would be slightly slower. Could it be the VRG2s due to less rotational mass? Maybe the ZR1 reeling me in? haha

Yeah, sure thing man.  Not doubting you, the numbers just look weird.  It would be possible that something is just up with the 1/8 mile speed calculations.  The car is definitely flying, congrats again.


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#10 SCCAForums Posted 07 February 2012 - 11:44 AM

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Great Run!  I think your 1/8MPH is off... other than that... everything else seems dead on.  Did you shift to 5th before the lights?  What RPM were you shifting at?
Dave

Edited by SCCAForums, 07 February 2012 - 11:45 AM.



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#11 Big Red Posted 07 February 2012 - 11:57 AM

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 SCCAForums, on 07 February 2012 - 11:44 AM, said:

Great Run!  I think your 1/8MPH is off... other than that... everything else seems dead on.  Did you shift to 5th before the lights?  What RPM were you shifting at?
Dave

I was shifting maybe 200 rpms before redline until the last two gears which I wound out. I'm not sure if I hit 5th to be honest, the pass was back in November and it has only been down the track twice.



#12 FikseGTS Posted 07 February 2012 - 11:58 AM

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yea, that's my car/run....

your ET lines up perfectly for a stock 2012 GT-R, traps not so much,  32MPH pickup on the back half is SUPER high....

when I trap 127.x MPH in my tune only 2012 with a 1.6x 60's I'm well into the 10's....  10.7x-10.8x.....

maybe a breeze of cool air hit the car half way down...  and brought the DA from -1500 to -2500..  :)



 Big Red, on 07 February 2012 - 10:12 AM, said:

It was at Atco Raceway (NJ), I'm pretty sure the 1/4 time/speed is accurate. It was very close to a similar/slightly quicker stock 2012 pass I saw on dragtimes he went 11.074@124 with a slightly better 60' (1.646) but only a 124.45 mph trap like most. His 1/8th was a 7.082 @ 97.88 mph! (http://www.dragtimes...ml?resultpage=5).

What stumps me is I'm not sure how the car picked up 3 mph over his in the 1/4 when it was already down 2 mph at the 8th mark. I'm not very big 5'7, if my dad was in the car I'm sure the pass would be slightly slower. Could it be the VRG2s due to less rotational mass? Maybe the ZR1 reeling me in? haha

Edited by FikseGTS, 07 February 2012 - 12:00 PM.




#13 sleepdoc Posted 07 February 2012 - 12:15 PM

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1.  The trap is likely off.  It happens. I have seen it a lot.  Traps are not nearly as accurate as ET.

2.  The wheels with non-runflats will likely give a big reduction in unsprung and rolling weight, leading to a better ET and trap.

3. Isn't ATCO downhill :)


Nice run BTW






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#14 Big Red Posted 07 February 2012 - 12:27 PM

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 FikseGTS, on 07 February 2012 - 11:58 AM, said:

yea, that's my car/run....

your ET lines up perfectly for a stock 2012 GT-R, traps not so much,  32MPH pickup on the back half is SUPER high....

when I trap 127.x MPH in my tune only 2012 with a 1.6x 60's I'm well into the 10's....  10.7x-10.8x.....

maybe a breeze of cool air hit the car half way down...  and brought the DA from -1500 to -2500..  :)

Congrats? How do you rank as quickest stock 2012 GTR?



 sleepdoc, on 07 February 2012 - 12:15 PM, said:

1.  The trap is likely off.  It happens. I have seen it a lot.  Traps are not nearly as accurate as ET.

2.  The wheels with non-runflats will likely give a big reduction in unsprung and rolling weight, leading to a better ET and trap.

3. Isn't ATCO downhill :)

Nice run BTW

Thanks

1. I can definitely see the trap being off as opposed to the ET.
2. I'm sure that even a miniscule amount of less rotational mass helps the car, especially in the last 1/8th.
3. Not that I've ever noticed, maybe only the second half. :)

Edited by Big Red, 07 February 2012 - 12:51 PM.




#15 Church Posted 08 February 2012 - 02:12 PM

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 Big Red, on 07 February 2012 - 12:27 PM, said:

Congrats? How do you rank as quickest stock 2012 GTR?

Using Dragtimes or on nagtroc

Edited by Church, 10 February 2012 - 05:32 PM.



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#16 Walser Posted 08 February 2012 - 04:31 PM

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I agree the traps are off, but still a nice run. I have the same VRG2s on my 2010. Nitto 305 555Rs in the back and NT05 275s in the front. Against stock wheels and runflats, I realized a 14 lbs improvement altogether. Sure it's nice, but I believe the improvement gained by reduced rotational mass and unsprung weight is often overestimated.


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#17 MC Posted 08 February 2012 - 04:32 PM

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 Church, on 08 February 2012 - 02:12 PM, said:


You are still only second best I'm afraid.

Mine was the fastest 1/8th mile stock 12  gtr


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#18 MC Posted 08 February 2012 - 04:36 PM

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 Walser, on 08 February 2012 - 04:31 PM, said:

I agree the traps are off, but still a nice run. I have the same VRG2s on my 2010. Nitto 305 555Rs in the back and NT05 275s in the front. Against stock wheels and runflats, I realized a 14 lbs improvement altogether. Sure it's nice, but I believe the improvement gained by reduced rotational mass and unsprung weight is often overestimated.

Black edition wheels by themselves  are lighter than stock 2010 wheels so his weight savings would be less than
14 lbs...


BE wheels alone  are 22.7 and 23.8 lbs   G2's are  25.2 and  25.8 lbs according to my  #'s

but with the nitto vs  oem tire   the  G2 nitto set up is gonna still be  a bit lighter




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#19 Big Red Posted 08 February 2012 - 05:30 PM

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 Church, on 08 February 2012 - 02:12 PM, said:

Ummm because he has posted a slip and video of his 2012 100% stock running faster than anyone else on the forums, dragtimes, youtube et. The traps were obviously WAY off. You are still only second best I'm afraid.

Ummm I was simply asking if there was anyone who has ran quicker than him for a stock 2012. For my first pass ever in the car out of my only two passes in the car, I'm more then content with second.


 Walser, on 08 February 2012 - 04:31 PM, said:

I agree the traps are off, but still a nice run. I have the same VRG2s on my 2010. Nitto 305 555Rs in the back and NT05 275s in the front. Against stock wheels and runflats, I realized a 14 lbs improvement altogether. Sure it's nice, but I believe the improvement gained by reduced rotational mass and unsprung weight is often overestimated.

Thanks Walser


 MC, on 08 February 2012 - 04:36 PM, said:

Black edition wheels by themselves are lighter than stock 2010 wheels so his weight savings would be less than 14 lbs... [/font] BE wheels alone are 22.7 and 23.8 lbs G2's are 25.2 and 25.8 lbs according to my #'s

but with the nitto vs oem tire the G2 nitto set up is gonna still be a bit lighter


Thanks MC, that definitely saved us some time. I guess the difference is more miniscule then I had previously thought.



#20 MC Posted 08 February 2012 - 05:44 PM

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I'm not sure what the best pressure is for the nitto. But OEM I take my rears down to about 28psi and it seems to help a little..i might try even a bit lower next time out


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