3rd Gen / L98 Engine Tech 1982 - 1992 Engine Related

Stock 1/4 times

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Old Mar 29, 2003 | 04:51 PM
  #1  
demonspeed's Avatar
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From: Pittsburgh, PA
Stock 1/4 times

Just want to see a list of what you all ran before you started modding. So i'm looking for BONE STOCK times here. I mean, K&N filters, plugs, wires, clutch, etc... that stuff doesn't count, but like exhaust, pullies, etc... that stuff isn't stock hehe. So what'd you run!

Oh yeah... list year, engine, tranny, and rear end!
Old Mar 29, 2003 | 07:00 PM
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StealthElephant's Avatar
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Old Mar 30, 2003 | 08:41 AM
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demonspeed's Avatar
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Only one person??? hehe come on... here's mine then...

14.62 @ 95.5 (K&N Filter, Flowmaster Catback, BBK X-Pipe)

14.30 @ 96.5 (The above plus: BBK Headers, ASP Pullies, MAC CAI, 3.55 Gears)
Old Mar 30, 2003 | 11:23 AM
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RobsWS6's Avatar
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From: Diamondhead, MS
Never ran mine 100% stock but had a K&N, 160 thermostat, and Thrasher 92 chip. Ran 13.0@104 on Firestone Firehawks.

89
V6
200 4R
3.27
Old Mar 30, 2003 | 11:32 AM
  #5  
krazzycowgirl's Avatar
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From: Yelm, Wa USA
87 Iroc-z w/350 Stock times 15.01@90.2 MPH
Same car with Chip,K&Ns 14.7-14.8
My best time is 14.68

tranny is 700R4
Rear is a 3.27 BW

Have not ran her this year yet with the new driveshaft.
Old Mar 30, 2003 | 11:40 AM
  #6  
IROC5.7TPI's Avatar
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From: Sterling Heights, MI
I went 14.52 @92mph w/ 1.969 60ft. with a bad trans that wouldn't shift into 3rd, so I had to lift off the throttle past the 1/8th mile and coast thru the traps...

stock 5.7
gutted airbox, K&N's
dual cat y-pipe without cats
3" MAC intermediate
3" single in/out Flowmaster 3 chamber
2500rpm stall speed T.C.
TPIS Level 3 prom
MSD 6A
bald XP2000Z's

This was at Ubly Dragway in September of 2001.

I know with a good trans and some PROM tuning I could pull off a mid 13 as is. I just put in a trans and hope to get some new timeslips within the next month or two.
Old Mar 30, 2003 | 12:08 PM
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demonspeed's Avatar
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Sweet.... keep 'em coming!
Old Mar 30, 2003 | 04:14 PM
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From: rochester,MI, US
I never ran my iroc 100% stock, but with a k&N and edelbrock headers I turned a 14.4 @99. It was way too cold for traction, so the 60fts were poopy 2.19's.

84K mile original 305 tpi
5 speed tremec....glad its gone
3.45 rear

Last edited by guywidiroc; Mar 30, 2003 at 04:18 PM.
Old Mar 30, 2003 | 04:41 PM
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angel71rs's Avatar
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From: TX
With K&N and a Hypertech chip/160 stat, best was 15 flat at local 4,100 ft track, about a 14.3 corrected. Usually ran 15.3 - 15.5. Best 60 ft, 2.17. Yech!

89 Formula 350 twin cat WS6, 3.27 diff.
Old Mar 30, 2003 | 11:00 PM
  #10  
89'Formula's Avatar
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From: McHenry IL US
all stock i ran a 15.7@86mph with an 89' Formula 305 TPI w/2.73 gears.
Old Mar 31, 2003 | 09:17 PM
  #11  
87IROC-Zowner's Avatar
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From: Sparta, North Carolina
sig.

Bone stock with 155,000 miles at time of race. Stock size tires/wheels ($60 a piece street tires ) , stock limited slip 3.23's, 1/4 tank of 93 octane gasoline, no K&N's. More or less, completely factory showroom condition except for the mudflaps. Never been rebuilt or tore down other than routine services (oil change, spark plugs/wires, distributor cap/rotor, transmission filter/fluid, new GM radiator/waterpump/alternator).

60' times were achieved without the slightest bit of spinning the tires. Neither in the smoke box, nor at the tree. I did however power brake at 1100-1200 RPM's before launching.

P.S.: 1987 IROC Z-28, 305 TPI w/700R4, T-Tops, all power options, 4 wheel disc's and I weigh about 145 lbs. All times and speeds are at 1/8th mile track.
Old Mar 31, 2003 | 10:41 PM
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krazzycowgirl's Avatar
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From: Yelm, Wa USA
Bragging Rights: Bone Stock 1987 LB9/700R4= 9.71@70.4 w/ 2.0 60ft
1/8th mile right?
Old Mar 31, 2003 | 11:21 PM
  #13  
demonspeed's Avatar
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From: Pittsburgh, PA
my 1/8 was 9.1 for my 14.30 1/4... so a 9.7 would translate to what 1/4?
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