was searching for a 1/4 mile times thread and didn't find one. i'm in the market for a X and just wanted to know how much power is needed to run mid to low 12's. I would also like to know the max amount of power people are running with stock blocks. thanks!

 

The 2011 can hit 1/4 mile in 13 flat, and, depending on dyno, they are hitting 220-250 whp. Basic weight reduction and a tune could probably get you in mid 12s.

As for max power on stock block, start checking the dyno thread section.

 

Basic bolt ons...Fmic, uicp, intake, 3port bc, tbe, and a tune should get u mid 12's all day

 

Awesome thanks I'm sure I have the need for more speed once I start modding more

 

My setup would easily be capable of a mid to low 12@112mph, and I have 305whp on a Mustang Dyno.

 

300-325whp from what ive been reading

 

Also depends on the driver ive seen some cars putting down quite a bit of power have slow runs some bolt ons a nice tune and you will hit mid 12s

 

in an se I have gone mid 12 s with no prob with a cobb stg 2 and tb

 

weight/(ET/5.825) "cubed" so to the third. will give you the HP needed to run 12's( which is the ET you are asking about. assume you evo is 3200lbs or what ever you think or know it is.

 

Oh REALLY?

 

3200 / (12/5.825)^3

3200 / 8.74

This says you will need 366 HP to run a solid 12. and unless I'm mistaken our car scales in at 3600 stock right? at 3600lb it's 411 HP to run 12's.

 

3200 would be NICE but no. I weighed my '10 SE (SLIHGTLY less weight than the GSR/MR/MR-T due to lack of luxury options ie no nav, no subwoofer, no wing, no sunroof) a few weeks ago. Full DD weight and all fluids with me in it it was 3800 even. I'm 185. Here are your basic weight reduction numbers:

3800
-12.4 (washer fluid)
-63lbs (half tank of gas at approx 8lbs/gal)
-50.4 (spare tire, tire jack/tools, center tie lock for spare)
-33.8 Rear bumper beam
-17.8 Front bumper beam
-21.1 A/C removal
-3.1 Removal of fog lights
-26 (replacing 39lb stock battery with 13lb AMS battery)
-14.4 Removing ALL airbags
-10.2 Removal of sound deadening tar
-2.0 Removal of trunk walls
-3.0 Battery cover
-4.0 Spare tire cover
-40.2 Rear seats
-5.4 Floor mats
=306.8lbs of reduction (before the "driver mod" weight reduction lol)

That nets you 3493.2lbs.....

-Lightweight wheels (at LEAST the MR BBSs...)
-Misc bolts and foam will net a few pounds

-Removing the stock seats and going with a light weight exhaust nets HUGE gains, I believe the stock Recaros are 40lb apiece and are GROSSLY overweight compared to regular non-airbagged/heated Recaros.

So if you did ALL that PLUS wheels, exhaust, lighter front seats you may get down to 3200.

MY recommendation for weight reduction, to retain the balance of the car (since most of the listed items above are removed from the REAR of the car, which is more front heavy to begin with):

-light weight wheels (MR BBS will save around 8lbs total over the GSR Enkeis)
-driver weight reduction (100lbs = .1sec off your 1/4 ET)
-light/aftermarket full exhaust (do some research, I don't have the numbers immediately available, HUGE weight loss potential)
-lighter brakes/rotors (MR two piece for example)

 

Wow. 3,800 seems pretty high. The numbers I've seen without driver are ~3,500. Either way, if you're looking for a dedicated drag car, you might be willing to go a little more extreme in terms of weight reduction, but if you're only looking to hit the strip occasionally with a DD, you probably want to make your weight reduction a little more focused.

From the research I've been doing, here are the top weight reductions you might want to consider for a daily driver and the corresponding weigh savings (these numbers vary by how extreme you're willing to go):

Rims: 20 lbs
Exhaust: 10-30 lbs
Spare: 50 lbs
Battery: 20-35 lbs
Coilovers: 30 lbs
Brakes: 20-40 lbs
Aluminum driveline: 15 lbs
Wing: 13 lbs

So that's nearly 200 lbs off your starting mark without making a major impact on your daily driving experience.

Obviously, it's easier/cheaper to add power than to reduce weight, so you'd have to weigh your options.

 

Thx for doing the math behind the equation---there is a big difference between 12.9 and 12.0--the calc as it is would be for 12.0 since I didnt include the decimal point since he said 12"s--so this will get in the ball park-- someone will come back with some variation thats in the 12's but not at the HP rating calulated--figured I would throw it out before it came up.

 

car seems like roughly 3400-3450 dry.. some of these weight reduction numbers seem a little optimistic...