First track drag race experience
#1
The Addiction of Wankel
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First track drag race experience
I took my 87 n/a out to the drag strip to see what it would run. This was my first time racing with a tree and the whole track thing.
First run Second run
R/T 1.147 .399
60' 2.547 2.660
330' 7.089 7.189
1/8 10.816 10.889
MPH 65.78 66.35
1000' 14.036 14.081
1/4 16.754 16.779
MPH 83.01 83.49
I launched at 3000 rpms the first run and 2500 rpms the second run. I was disappointed, I thought I was in the 15 second range. Someone help me get into low 15s, high 14s.
My mods
Intake
Mindtrain Headers
A/C removed
550cc secondaries
I have a little under 5000 miles on my rebuilt motor with a stock port.
Even though I didn't get the time I wanted, the whole thing with racing at the drag strip was cool.
First run Second run
R/T 1.147 .399
60' 2.547 2.660
330' 7.089 7.189
1/8 10.816 10.889
MPH 65.78 66.35
1000' 14.036 14.081
1/4 16.754 16.779
MPH 83.01 83.49
I launched at 3000 rpms the first run and 2500 rpms the second run. I was disappointed, I thought I was in the 15 second range. Someone help me get into low 15s, high 14s.
My mods
Intake
Mindtrain Headers
A/C removed
550cc secondaries
I have a little under 5000 miles on my rebuilt motor with a stock port.
Even though I didn't get the time I wanted, the whole thing with racing at the drag strip was cool.
#3
Do a barrel roll!
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You need to work on the launch some. A 2.5 60' really isnt very good. You should be able to cut that down to damn near a 2.0 or even 1.9. Also you are running 550 secondaries without any type of fuel controller? Even with the stock 460s N/As run rich in the higher rpms. Those 550s are probably killing top end HP, which is like the only thing N/As have going for them. Are yoy still running the stock cat and cat-back?
#4
The Addiction of Wankel
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Yes, stock cat and I have 2.25 pipes from cat to stock replacement mufflers. For a quicker launch, should I raise rpms for the launch. I had a little wheel spin of the line, even at 2500 rpms.
#5
Looks like (and Id imagine you were) bogging on the launched. Rev to 5000rpm and slip the clutch next time you go. Dont dump it. Hell even taking with some of the other drivers (the fast ones, not the dumbass people in shitty cars cutting slower times than you ) and see if they have any advice can go a long way.
#7
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Lower rear wheel pressure to about 18-20 psi. Rev a bit higher and drop that clutch like a *****.... Make sure that you shift real real quick as well and be sure to redline it in every gear.....Most NAs will cross the 1/4 mile while redlining 3rd gear. My specific NA is more geared towards autox with a lightweight flywheel and I drop my clutch at about 5500 rpm hehehehehe and I take 1st gear in to about 7500rpm and then 2nd to about 7900 rpm and then I cross the line deep in to the redline around 7500 rpm in 3rd.
-Lee
-Lee
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#10
Your 60' time is what is killing you. You could improve your 1/4 mile by almost a sec. with a better launch. Why are you running those injectors? You have no need for more fuel yet, so put your stock ones back on.
#13
My cars louder than yours
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a stock port N/A will NEVER need 550cc secondaries, neither will any sp (that i know of). I think the only time an N/A needs bigger secondaries would be likea BP, but you're way from that my freind. Sell them and put 460s around, you'll notice quite a difference. Leaner=quicker (well....... unless you start pinging).
#14
The Addiction of Wankel
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I got the 550cc injectors in because my old 460's were leaking bad and the 550cc were just cleaned and I got them for cheap. I can't get rid of the cat until I get something to control the actuators for my aux ports.
#16
The Addiction of Wankel
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I was thinking of activating them electronically like this web site
http://www.fc3s.org/how_tos/electrical/6_ports.html
That way I could remove the cat and the air pump, along with some other emissons crap, but I'm gonna have to put it back on every two years for smog.
http://www.fc3s.org/how_tos/electrical/6_ports.html
That way I could remove the cat and the air pump, along with some other emissons crap, but I'm gonna have to put it back on every two years for smog.
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the thing that I found cut my time more than anything was working on my shifting technique, all I do when shifting is feather the clutch and just BARELY let off the gas so I dont overrev and throw the shifter as fast as you can, having a fresh clutch will drop at least a few 10ths off your time, I put in a new clutch and dropped over 2/10ths off my 1/8th mile time.
#23
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Can anyone show me what the valve to control the actuators from the airpump looks like, or what it is called exactly? I going to put the stock injectors back in tomorrow morning.
#24
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Basically you just want to get a simple ball valve from home depot or something, you can either get a two way valve with a reducer on one side hooked to your actuators, have one open vented, and close it about 2/3rds the way, then close the 6port one, get someone to rev the car to about 4K rpm and adjust them so that they just open fully at about 4krpm.
#25
Basically you just want to get a simple ball valve from home depot or something, you can either get a two way valve with a reducer on one side hooked to your actuators, have one open vented, and close it about 2/3rds the way, then close the 6port one, get someone to rev the car to about 4K rpm and adjust them so that they just open fully at about 4krpm.