15.3 in the 1/4...wtf
10-23-2012, 09:07 PM
#1
2nd Gear Member
Thread Starter
Join Date: Jul 2010
Location: New jersey
Posts: 403
15.3 in the 1/4...wtf
So I have an 88 lx, 40,000 on the motor, longtubes, xpipe, flowmaster 10s, 3.73s, short throw shifter
now i know its no race car, but a it is not a 15 second car
all the ignition system has been replaced... my first thought is timing, or the heads are bad. I was racing my buddy with a notchback that runs 13s... through first and second I was right up with him, if not ahead, the second my car hits third it loses all its power. So would timing be the first place you would look?
now i know its no race car, but a it is not a 15 second car
all the ignition system has been replaced... my first thought is timing, or the heads are bad. I was racing my buddy with a notchback that runs 13s... through first and second I was right up with him, if not ahead, the second my car hits third it loses all its power. So would timing be the first place you would look?
10-24-2012, 08:59 AM
#3
6th Gear Member
Join Date: Mar 2010
Location: Wisconsin
Posts: 5,061
What was your trap speed and 60ft time? Definitely should be quicker than 15's. If your next to a 13 sec. car the first two gears, then loose by that much, something is wrong. Yes check timing, codes, vacuum leaks,. Does it run ok otherwise?
Last edited by 88 orangepeel notch; 10-24-2012 at 09:20 AM.
10-24-2012, 12:27 PM
#6
2nd Gear Member
Thread Starter
Join Date: Jul 2010
Location: New jersey
Posts: 403
Heres the info off the slip:
R/T: .348
60':2.187
330:6.389
1/8:9.834
MPH:71.24
1000: 12.8
ET:15.323
MPH:89.40
my other thought is the heads could need replacing...and then my friend said its possible the last owner actually put a truck motor and its not the HO
R/T: .348
60':2.187
330:6.389
1/8:9.834
MPH:71.24
1000: 12.8
ET:15.323
MPH:89.40
my other thought is the heads could need replacing...and then my friend said its possible the last owner actually put a truck motor and its not the HO
10-24-2012, 12:38 PM
#7
6th Gear Member
Join Date: Nov 2006
Location: Spfld, MA
Posts: 9,240
You can verify that easily. Check firing order.
On a side note, I highly doubt there is something wrong with the heads. You're a full second under the stock time for these cars in the 80's. It could be the long tubes. You give up mid-range pull for bottom end grunt when you install longtubes on a motor with as little mods as you have.
On a side note, I highly doubt there is something wrong with the heads. You're a full second under the stock time for these cars in the 80's. It could be the long tubes. You give up mid-range pull for bottom end grunt when you install longtubes on a motor with as little mods as you have.
10-24-2012, 05:51 PM
#10
Join Date: Oct 2012
Location: Quebec
Posts: 38
1979-93 truck V8's (non-HO) and 4.2 L V8: 1-5-4-2-6-3-7-8
1982-93 5.0 L HO V8: 1-3-7-2-6-5-4-8
http://www.fiveohinfo.com/fox/ignition.html#firingorder
What has been done to your buddy's car that it runs 13's?
I would expect 14's from the stuff you listed. You sure it's 40k and not 140k on the motor?
1982-93 5.0 L HO V8: 1-3-7-2-6-5-4-8
http://www.fiveohinfo.com/fox/ignition.html#firingorder
What has been done to your buddy's car that it runs 13's?
I would expect 14's from the stuff you listed. You sure it's 40k and not 140k on the motor?
