Would those of you who only have the 4lb lower pulley, 90 MAM, cone filter and a custom dyno tune post your 0 - 60 and quarter mile E.T.'s? Thank you in advance for the information. Happy New Year!

 

Here is a list of my mods. I ran a 12.90 on my cold weather tune. I've never raced on my most aggressive tune.
Boost By-Pass
FTVB
CAI
JDM Silver Bullet Exhaust
JDM 4# Lower
SCT Tune by JDM
NGK TR6 Plugs
JLP Traction Bars
Hoosier Slicks

 

i have air force one intake with 90mm 4lb lower phonlic spacer line mod boost bypass with slicks and ran a best of 12.81 on my mild street tune. I just bought the 4 bank chip from jdm and can't wait for racing with the race tune. I was dyno'ed at 401 and 499 trq with those mods on street tune. all done on my 99 lightning with stock gears and pulled off a 1.75 60'

 

4lb lower metco
MAC cai
SCT custom tune
FTVB & 4X4 tran pan
2 bottles of Water Wetter in inter cooler res
2 bottles of Water Wetter in the cooling res
170 thermo
Mobil 1 0W-20 synthetic oil
2 spal 7" fans on the heat exchanger
removed hitch/spare/jack
I weigh 200 lbs.

Time in sig

 

Wydopnthrtl ran a low 12 on his 4# pulley.

it's all in the tune.

 

I have seen 12.0's to 12.70's on a 4lber.....


Best I went as 12.46 @110....

 

i went 12.35 at 111 with a horrible 60ft 1.82


with a 4lb, jdm flip chip, jdm silver bullit, jdm cold air intake, traction bars, and slicks

 

I think tune and 60" are the big variable with the 4lb I slowed by 1/10 in the 1/8th mile but picked up 3-4mph. My 60' went from semi consistant 2.0 to nothing below 2.2 on f1's.

 

My first 12, back in 02

Open JDM High Flow Filter
4lb Lower Pulley
Diablo tuned by RWTD (at the time)
NO OTHER MOD'S AT ALL
ON F-1's

 

12.81 @ 109.00 mph on radials. Decent, but not perfect air (nothing in N. Texas ever is).

60' was a horrible 2.06.

4lb pulley, CAI, FTVB, Troyer SCT tune.

With slicks it'd be an easy 12.5-12.6.

 

12.76@108.8 with 40 deg air.(98octane just for safety)
Summer air 12.98@ 106.5.
Mid summer I get consistent flat 13's-13.07 (13.3's spinning). God heat suck's!
Hopefully my motorcycle sell's before this spring and I can afford a KB and see some flat 12's!!!
Bryan

 

my previous 2001 Lightning-
(4lb, T-Body, Chip, Cone Filter, Muffler, 58" T-bars, E-Fan kit, Hoosiers)

 

I do have a few more mods than you've asked about. (mods on my web page) But here is my best slip w/a 4# lower. (I typically run about a 12.5 on ET streets and 12.8s on nitto 404s)

 

Dang, some of you guys ARE FLYING and kicking serious butt
with only 4lbs, WOO HOO................ My Hats off to you

 

Thank you all for your responses. There were eleven first person quarter mile E.T. reports. The average was approximately 12.6 seconds. The lowest was 12.31. The highest 12.9. I did not use some of the warm weather reports where the time was a hair over 13 seconds flat. The mods were sufficiently similar to suggest that the .59 second difference between the lowest and highest E.T. is due to driving skill. What the reports also show is that for under $1500.00, a 1999 - 2004 lightning can be upgraded from a fast vehicle to a very, very fast vehicle that, in a quarter mile race, will prevail over most vehicles on the road today. Considering the modest base price of our trucks, this has to be one of the greatest performance bargains in automotive history.