Tech / General Engine Is your car making a strange sound or won't start? Thinking of adding power with a new combination? Need other technical information or engine specific advice? Don't see another board for your problem? Post it here!

Finally ran a solid 11, with may car

Thread Tools
 
Search this Thread
 
Old 10-28-2015, 10:58 AM
  #1  
Senior Member

Thread Starter
 
bjankuski's Avatar
 
Join Date: Jun 2000
Location: Glenbeulah, WI
Posts: 599
Likes: 0
Received 0 Likes on 0 Posts
Car: 1988 Firbird
Engine: 406
Transmission: T-56
Axle/Gears: 4.10
Finally ran a solid 11, with may car

I have wanted my daily driver very streetable Firebird to run 11's with ease for the last few years. Well it finally did it. I ran a 11.72 at 116 MPH and an 11.62 at 116 MPH. (I could not find the 11.62 slip so I have the 11.72 pictured). I have attached the run and a picture of my car when I was on Drag week this year.

The car would only run 12.0 with the 3.54 gears and the 6-speed with my race weight of 3700 LBS. It would bog out of the hole when the tires dead hooked with the alum flywheel. I switched to 4.10 gears and the bog disappeared and the car ran hard. I spun on these runs so I expect that I could get mid 11's with some practice on the launch.





Old 11-02-2015, 09:29 AM
  #2  
Supreme Member
 
rusty vango's Avatar
 
Join Date: Jun 2011
Location: knoxville tn
Posts: 2,036
Likes: 0
Received 5 Likes on 5 Posts
Car: 86 IROC
Engine: 5.0 TPI
Transmission: 700-R-4
Axle/Gears: 2.73 open
Re: Finally ran a solid 11, with may car

was that 8th mile ? or the real deal 1320 ?
Old 11-02-2015, 09:34 AM
  #3  
Supreme Member

iTrader: (2)
 
dmccain's Avatar
 
Join Date: Mar 2014
Location: South Ms
Posts: 4,418
Received 721 Likes on 490 Posts
Car: 89 Firebird
Engine: 355 TBI
Transmission: 700R4
Axle/Gears: 10 Bolt.Posi-3.73s
Re: Finally ran a solid 11, with may car

Nice. My dad built a 406 and ran 11.30s in a 67 chevelle, drove it on the street too. It wasn't fuel injected though. Very nice timeslips man!
Old 11-02-2015, 04:19 PM
  #4  
Supreme Member

iTrader: (14)
 
aliceempire's Avatar
 
Join Date: Nov 2008
Location: Milwaukee
Posts: 1,995
Received 140 Likes on 116 Posts
Car: 92 Firebird, 77 Trans Am SE, 86 Z28
Engine: 5.7 HSR, T/A 6.6, empty
Transmission: T-5, TH350, T-5
Axle/Gears: 3.08 posi, 3.23 posi, 3.23
Re: Finally ran a solid 11, with may car

Excellent. Time to get collectors plates for it.
Old 11-02-2015, 05:47 PM
  #5  
Moderator

 
AlkyIROC's Avatar
 
Join Date: Jul 1999
Location: 51°N 114°W, 3500'
Posts: 17,108
Likes: 0
Received 120 Likes on 101 Posts
Car: 87 IROC L98
Engine: 588 Alcohol BBC
Transmission: Powerglide
Axle/Gears: Ford 9"/31 spline spool/4.86
Re: Finally ran a solid 11, with may car

Originally Posted by rusty vango
was that 8th mile ? or the real deal 1320 ?
Looking at the timeslip numbers, it's 1/4 mile. He did 7.47 @ 91.22 in the 1/8.
Old 11-02-2015, 06:13 PM
  #6  
Supreme Member

 
Damon's Avatar
 
Join Date: Sep 1999
Location: Philly, PA
Posts: 7,072
Likes: 0
Received 11 Likes on 11 Posts
Re: Finally ran a solid 11, with may car

Good call on 4.10s with the 6-speed. I had a 94 Formula 6-speed with stock 3.42 gears and it had the same problem- bogged if you got it to hook good. Likewise, I put a set of 4.10s in it and the problem went away (plus you can actually USE 6th gear for something other than highway fuel economy).

Dead stock on street tires my Formula run 13.5 @ 105. On DRs with the 4.10s it would go a maddening string of 13.0s but I could never crack an 12.99 with it. Still, for a dead-stock LT1 car (not even a cold air kit) people were generally shocked it ran as well as it did. Even the (then new) LS1 cars that were usually in my rear view mirror if they were stock.

You still running the 7.625" 10 bolt? If so, prepare to upgrade. It won't put up with 1.6 60-foot shenanigans for long. Especially not if you get it to dead-hook.
Old 11-07-2015, 09:16 PM
  #7  
Senior Member

Thread Starter
 
bjankuski's Avatar
 
Join Date: Jun 2000
Location: Glenbeulah, WI
Posts: 599
Likes: 0
Received 0 Likes on 0 Posts
Car: 1988 Firbird
Engine: 406
Transmission: T-56
Axle/Gears: 4.10
Re: Finally ran a solid 11, with may car

Thanks for the reply. I have a Strange S60 rear end in the car. The stock 9-bolt worked pretty well until I started running mid 1.6's and then I blew two of them very quickly so I put the S60 in.
Old 11-08-2015, 08:03 PM
  #8  
Member

 
cardo0's Avatar
 
Join Date: Aug 2010
Location: Las Vegas
Posts: 478
Received 4 Likes on 3 Posts
Car: Fourth Gen '94 camaro
Engine: 350 Gen II
Transmission: A4
Axle/Gears: 3.23
Re: Finally ran a solid 11, with may car

Pretty cool car. Thx for sharing your combination. Thats pretty fast for that size cam. I think u got it figured out.

Congrats.
Old 11-08-2015, 09:05 PM
  #9  
Member
iTrader: (2)
 
BrutalGTA's Avatar
 
Join Date: May 2013
Location: Texas
Posts: 235
Likes: 0
Received 1 Like on 1 Post
Car: 1989 GTA
Engine: LS coming soon
Transmission: 80E coming soon
Axle/Gears: S60/35 Spline/S-Trac/3.73
Re: Finally ran a solid 11, with may car

How is your formy 3700lbs???

My 92 was 33xx with a RAII hood.
Old 11-08-2015, 09:09 PM
  #10  
Supreme Member

iTrader: (8)
 
TTOP350's Avatar
 
Join Date: Oct 2001
Location: Il
Posts: 11,689
Received 745 Likes on 505 Posts
Car: 1989-92 FORMULA350 305 92 Hawkclone
Engine: 4++,350 & 305 CIs
Transmission: 700R4 4800 vig 18th700R4 t56 ZF6 T5
Axle/Gears: 3.70 9"ford alum chunk,dana44,9bolt
Re: Finally ran a solid 11, with may car

Nice and I approve of the car too!
Old 11-10-2015, 01:40 PM
  #11  
Senior Member

Thread Starter
 
bjankuski's Avatar
 
Join Date: Jun 2000
Location: Glenbeulah, WI
Posts: 599
Likes: 0
Received 0 Likes on 0 Posts
Car: 1988 Firbird
Engine: 406
Transmission: T-56
Axle/Gears: 4.10
Re: Finally ran a solid 11, with may car

Originally Posted by BrutalT/A
How is your formy 3700lbs???

My 92 was 33xx with a RAII hood.
That is with a 200 lb driver.

The car was 3375 lbs stock, added in T56 over T-5 added extra weight, added in S60 over 9 Bolt that added an extra 100 lbs.
Old 11-10-2015, 02:17 PM
  #12  
Member
iTrader: (2)
 
BrutalGTA's Avatar
 
Join Date: May 2013
Location: Texas
Posts: 235
Likes: 0
Received 1 Like on 1 Post
Car: 1989 GTA
Engine: LS coming soon
Transmission: 80E coming soon
Axle/Gears: S60/35 Spline/S-Trac/3.73
Re: Finally ran a solid 11, with may car

Dang, didn't realize the S60 is so damn heavy. Nice times either way!
Old 11-10-2015, 03:46 PM
  #13  
Supreme Member

iTrader: (8)
 
TTOP350's Avatar
 
Join Date: Oct 2001
Location: Il
Posts: 11,689
Received 745 Likes on 505 Posts
Car: 1989-92 FORMULA350 305 92 Hawkclone
Engine: 4++,350 & 305 CIs
Transmission: 700R4 4800 vig 18th700R4 t56 ZF6 T5
Axle/Gears: 3.70 9"ford alum chunk,dana44,9bolt
Re: Finally ran a solid 11, with may car

How about a pic of the engine?
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
birdman_29
Body
13
01-07-2017 08:24 AM
KarlJ
TPI
11
11-13-2015 09:48 AM
tommy z-28
Cooling
5
10-06-2015 10:58 PM
okfoz
History / Originality
3
09-17-2015 10:30 AM
6speedIROC
Engine/Drivetrain/Suspension Wanted
0
09-13-2015 01:29 PM



Quick Reply: Finally ran a solid 11, with may car



All times are GMT -5. The time now is 01:46 PM.