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Glenn's dragster thread
GlennLever:
Well we really wanted to test this weekend. I want to go to Norwalk for NDRL
Briggs and Stratton Summer Jam
at the Blue Suede Cruise
Summit Motorsports Park
Norwalk, OH
http://www.frontenginedragsters.org/forum/index.php?topic=48.0
http://summitmotorsportspark.com/index.php/component/jevents/icalrepeat.detail/2013/07/21/74/-/-?Itemid=1
We still do not have the 8.5 index straightened away and kind have hit the physical limit of slowing down with air fuel mixture (top pulley cannot be any larger without changing the belt guard and the bottom pulley is a 42 tooth pulley and has the drive for the belt for the fuel pump inside).
We have made the adventurous decision to go for the 8.0 index instead.
Empire was rained out Friday, washed out Saturday, so we decided to drive two hours to go to Esta Safety Park Dragstrip, 8091 Eastwood Road, Cicero, NY 13039. Got up at 5 in the morning to leave by 6 (two hour drive), got within 10 minutes of it and received it was closed due to flooding.
Plans now are to blow off club racing July 12th for testing for Norwalk.
GlennLever:
Well did some test and tune today to work on .400 Pro Tree and 8.50 index racing. Been working off and on on this for awhile now with not too much success. The vehicle has been too fast and I have been too slow.
The plan is to go to the NDRL race at Edgewater Sports Park Cleves, Ohio in two weeks. I have never run a pro tree and an index so this will all be new to me.
First run, Saturday 1:33 PM August 10
Air Density 2317
Top Pulley 63
Bottom Pulley 42
Pill 110
Top end Fuel Pressure 53.82
Top end Boost 6.74
Reaction time a perfect .400 !!!!!!!!!!!!!!!!!!!!!!!!
60 foot 1.275
¼ mile 8.467 / 159.23 MPH
A/F ratio 4.048
Comments, Seem dead off the launch, engine RPM graph was flat after launch, two peaks in g-force after launch, short shifted by 300 RPM to second gear
Second run, Saturday 3:11 PM August 10
Air Density 2413
Top Pulley 63
Bottom Pulley 42
Pill 113 Leaned it out a little
Top end Fuel Pressure 49.83
Top end Boost 6.94
Reaction time .423 not to bad
60 foot 1.275
¼ mile 8.526 / 159.20 MPH
A/F ratio 4.152
Comments, Air was a little worse, and took a little fuel away, I hit the limiter for a brief second before the shift to second. Second good light on the pro tree, ET would be ok for a 8.500 index
Third run, Saturday 4:57 PM August 10
Air Density 2280
Top Pulley 63
Bottom Pulley 42
Pill 113 Leaned out a little
Top end Fuel Pressure 47.72
Top end Boost 7.07
Reaction time .389 Oops
60 foot 1.267
¼ mile 8.451 / 162.27 MPH Fastest speed I have run yet, I have run faster ETs, but not speed
A/F ratio 4.175
Comments, By the time I ran after sitting in the staging lanes the air got better, was to fast again, Shift to second was right on
Forth run, Saturday 6:52 PM August 10
Air Density 2077
Top Pulley 64
Bottom Pulley 42
Pill 113 Leaned out a little
Top end Fuel Pressure 48.12
Top end Boost 6.68
Reaction time .394 two in a row
60 foot 1.272
¼ mile 8.504 / 158.45 MPH I can live with this for a 8.500 index!!!!!!!!!!!
A/F ratio 4.138 This may be the magic number with the 113 bypass pill (adjust pulleys to get A/F Ratio)!!!!!!!!!!!!!!!!!!!!!!!A touch fatter than the 8.526 run, slowed it down perfect.
A great day of testing, we are in the ball park!
masracingtd1167:
Look's like you had a good weekend also ! Good luck at Norwalk I hear that it's a great track.
GlennLever:
--- Quote from: masracingtd1167 on August 13, 2013, 11:25:22 AM ---Look's like you had a good weekend also ! Good luck at Norwalk I hear that it's a great track.
--- End quote ---
Edgewater Park in Ohio not Norwalk yet
masracingtd1167:
Glen did you get a chance to race last weekend?
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