low mph question for the bolt on guys
low mph question for the bolt on guys I went to the local 1/8 mile track sunday and ran a 8.09@83.5 with a 1.73 60ft...I ran about 6 times and the mph was all in the 83 mph range....why is my mph so low? I ran 82.8 mph bone stock! my mods are in my sig....I mean I have almost all the bolt ons....most of the guys on this site with my mods run 87-89 mph in the 1/8 what gives???
TECH Enthusiast
Joined: Dec 2003
Posts: 533
Likes: 0
From: Novato, California
First I'd like to say your getting a very good ET for that mph. Other than the obvious track elevation & weather question, what rpm is your A4 programmed to shift at? You would be suprised what a difference in mph can be seen by as little as 100 rpm shifting too early would make. Fred
TECH Fanatic
Joined: May 2002
Posts: 1,402
Likes: 1
From: CT,
With Timing and fuel you should gain anywhere from 8 to 20 hp, you will see an mph increase. remember A4s dont normally trap high mph . Your car is a 98 you might be suffering the knock retard that is well known in the 98 cars.
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On The Tree
Joined: Oct 2002
Posts: 139
Likes: 0
From: Spring, Tx.
I have all the bolt ons & 3.73. Run 8 @ 83 w/ a 1.9 60'. Tuning could certainly help but the key for bolt on cars & speed is weight reduction & a lot of it. Need to do that myself.
Your et's are very good. 12.5 in the 1/4 which is certainly respectable for bolt on car. Just stay w/ it.
Peace,
WG
Your et's are very good. 12.5 in the 1/4 which is certainly respectable for bolt on car. Just stay w/ it.
Peace,
WG
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