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12 For Me!!!!

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Old Dec 14, 2002 | 01:09 AM
  #1  
'87FAKE-IROC-Z's Avatar
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From: San Antonio, TX
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12 For Me!!!!

Hey all,
I fiiiinnnaaaalllyyy broke into the 12s! I got three runs in. The first was a 13.04, the second a 13.00 , and the third I managed a 12.92 . Here is the slip.
My question is, does it look like my mph is falling off from what it should be from the 1/8 to the 1/4? The car just feels like it flattens out up top.
Anyways I'm happy.
Attached Thumbnails 12 For Me!!!!-12secondtimeslip.jpg  
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Old Dec 14, 2002 | 01:19 AM
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From: Sacramento, CA
Car: 89 Iroc
Engine: 383
Transmission: 700R4
Axle/Gears: 3.45
Congrats on that magic number. I should be there once I get my car back together.

Yeah you seem to be tailing off at the end. I hit 106MPH on street tires with a 13.35 ET. This was with a 2.049 60ft. What FP/injectors are you running?
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Old Dec 14, 2002 | 01:19 AM
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From: Manassas VA
Car: 04 GTO
Engine: LS1
Transmission: M12 T56
No that 1/8 and 1/4 mph match up pretty well actually. 21 mph in the second half isn't that bad.
And i'm sure you know it already but you have a lot of ET tied up in that 60'.
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Old Dec 14, 2002 | 08:28 AM
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From: Under the hood.
Thats no a bad MPH for a 12.90 pass. What suspension mods do you have? That 60ft. could use some help. Good Job man
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Old Dec 14, 2002 | 09:03 AM
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From: Sacramento, CA
Car: 89 Iroc
Engine: 383
Transmission: 700R4
Axle/Gears: 3.45
Originally posted by Ed Maher
No that 1/8 and 1/4 mph match up pretty well actually. 21 mph in the second half isn't that bad.
And i'm sure you know it already but you have a lot of ET tied up in that 60'.
Ed's probably right when I look at it again. I was comparing your runs with mine but I was on street tires. My 23mph gain from 1/8 to 1/4 is my small advantage in power (very small)

Last edited by DannyT; Dec 14, 2002 at 09:05 AM.
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Old Dec 14, 2002 | 09:15 AM
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From: Leander, Tx
hey whats up paul, nice meeting you last night and congrats on the new times!

Last edited by 87 B4Z; Dec 14, 2002 at 09:26 AM.
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Old Dec 14, 2002 | 09:16 AM
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From: San Diego, CA
Car: 87 Buick GN
Engine: 3.8L (231 cid) V6
Transmission: 200-4R
Axle/Gears: 10 bolt G80/ 3.42
Congrats on the new numbers! Work on that 60 foot and you should easily see mid 12s. What kind of tires were you running?
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Old Dec 14, 2002 | 05:06 PM
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From: Ohio, USA
Car: 2015 Camaro Z/28 & 2013 Super Bee
Engine: LS7 and 392 HEMI
Congrats, get some drag radials and show us the mid 12's!
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Old Dec 14, 2002 | 08:10 PM
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From: San Antonio, TX
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Thanx guys.
Those times were on BFG drag radials at 28#, that is the best 60 ft that car has seen. Suspension mods are just Lakewood LCAs and the old v6 front springs (if that counts, i never took them out!) stock front struts and monroe shocks.
What would be some well place suspension mods to do? I am planning on 90/10 struts and 50/50 shocks soon, ditching the front bar, new Torque arm mount (mine is stock and sloppy).
What have you all had good luck with?

Danny T- I'm running Accel 24# @ 42 psi

87 B4Z- hey, thanx (this guy has one gorgeous car)
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Old Dec 14, 2002 | 08:47 PM
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From: Hampton, VA
good stuff, I hope to be there one day.
biker
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Old Dec 14, 2002 | 10:16 PM
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From: Leander, Tx
Originally posted by '87FAKE-IROC-Z


87 B4Z- hey, thanx (this guy has one gorgeous car)
thanks
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Old Dec 15, 2002 | 01:32 AM
  #12  
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From: Bound Brook, NJ USA
Car: 89 IROC-Z
Engine: 383
Transmission: 700R4
Isn't that fuel pressure a little low??
I have almost the same setup, just with a different cam and I'm running about 48#'s of fuel pressure and at the track I plan to raise it to about 50-52#'s.
What are the specs on the hotcam? I want to run them in desktop dyno and compare it to the cam I have.
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Old Dec 15, 2002 | 09:35 AM
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From: In the corner of my mind!
Car: 1989 TTA #1240
Engine: 3.8 SFI turbo
Transmission: 2004r
Axle/Gears: 3.27
Do you have a scanner to monitor the runs. Could probably lean it up top a bit to gain a mph or 2. Just gotta find out what's going on with it......

Last edited by PETE; Apr 16, 2006 at 07:39 PM.
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Old Dec 15, 2002 | 01:31 PM
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From: Ohio, USA
Car: 2015 Camaro Z/28 & 2013 Super Bee
Engine: LS7 and 392 HEMI
Originally posted by '87FAKE-IROC-Z
Thanx guys.
Those times were on BFG drag radials at 28#, that is the best 60 ft that car has seen. Suspension mods are just Lakewood LCAs and the old v6 front springs (if that counts, i never took them out!) stock front struts and monroe shocks.
What would be some well place suspension mods to do? I am planning on 90/10 struts and 50/50 shocks soon, ditching the front bar, new Torque arm mount (mine is stock and sloppy).
What have you all had good luck with?

Danny T- I'm running Accel 24# @ 42 psi

87 B4Z- hey, thanx (this guy has one gorgeous car)
87, try taking the BFG's down to around 20 psi. I seem to get better traction around 20 psi with mine. Also, if you don't already, make sure you go through the water box and do about a full 5 second burnout to get them hot.
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Old Dec 15, 2002 | 02:03 PM
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From: st.paul minnesota
Car: IROC Z
Engine: 355 MINIram w/boost
Transmission: T56
i remember a guy tryin to get 12's with bassically stock engine, and if i remember correct, he was gettin pretty close, anyone know who im talkin about? by the way, nice run!
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Old Dec 15, 2002 | 02:10 PM
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From: Conroe, TX
Car: 1987 GTA
Engine: LS1
Transmission: 4L60e
You aren't the guy in Houston that I met at James Coney Island? Just curious.
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Old Dec 16, 2002 | 01:14 AM
  #17  
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From: San Antonio, TX
Car: Damn
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thanx for the replies,

Paul- The pressure is a little low but the car isn't running lean, the pump is on the back half of its life- I havn't yet decided what pump I want next.
I'm not sure on all the cam specs but the vitals are 218 228 dur @ .050, .525 .525 lift with 1.6 RRS, on a 112* lsa.

Pete- I do have an autoXray, I havn't yet logged a run though, according to my A/F gague I am running a little rich at WOT, around 800 mv(?) on the o2. Don't know how accurate the gague is though or if it is any good to go by that. Hopefully next time out I'll get some passes logged. I don't have a wideband so I pretty much only know if I'm rich or lean.

Buckeye- thanx, I'll try 20. I did do at least 5 second burn outs on each run after going thru the water. The tires seemed to bite alright going by the video and little chirping. I am gonna try to get the vid up soon.

3.1- if you're asking me, it wasn't me. I've only been to Houston a few times, the last was a Fun Ford Weekend a couple years ago.

thanx
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Old Dec 16, 2002 | 09:55 AM
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Congrats on the 12 second pass, like Ed said - the MPH seems to be right on. If you want to talk about falling off on the big end, here's my best pass w/ my old L98 set up:

60'... 1.726
330'... 5.265
1/8... 8.239
MPH... 82.39
1000... 10.820
1/4... 13.009
MPH... 102.78

I was running P255/50-16 BF DR's, 20 psi is where they seemed to work for me too. I used to go around the water box, back up into the very edge of it to just get a little bit on the tires, roll forward 5-6 feet, then start my burnout. That technique seemed to be the most consistent for me.
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Old Dec 16, 2002 | 05:23 PM
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From: Dale City, VA
Car: 91 GTA and 85 IROC
Engine: 355
Transmission: gear jammer
Axle/Gears: 4.11
definately take some more air out of tires. I run my nittos at 15-18psi
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