Day at the dyno
Thread Starter
Melting Slicks
Joined: Mar 2002
Posts: 2,313
Likes: 0
From: The cure for the blues is eight cylinders roaring
Day at the dyno
I had a good day and got some good hints on whare I can make easy improvements for $50. :D
Sorry that photos of graphs are so grainy I will try to explain them as best I can.
First run engine cold ambient temp 62deg. also my first time and unsure of myself. The large breakes in the readings could not be helped his machine he explained has a problem with large distributors.
run starts at 2400rpm torque is 250, horsepower110
max TQ251.6
max HP 191 :rolleyes:
run ends at5200RPM
Second run.
Starts at 2200rpm
Max tq. 290.9
Max hp.192.9
finish run at 5600rpm
3rd run
Starts at 4400rpm
max tq. 259.7
max Hp. 220.0
run ends at 5200 rpm Tq. and Hp. just over 200
Tips I was given
1 My air filters are restrictive.
2 Try a smaller secondary jets.I'm running very rich at the top.
3 I was using 93 octane gas I was told thats a common mistake that next time use 83 for a faster burn.
4 The linkage betweem my carbs is too weak and is flexing too much.
Overall I was pleased with how smoothly she ran with no ignition break up, but I was expecting better power nombers.specialy with a Buick GN putting m to shame with 462 RWHP and an ungodly amount of torque 550+
:eek:
[Modified by PrarieShark, 5:30 PM 3/8/2003]
Sorry that photos of graphs are so grainy I will try to explain them as best I can.
First run engine cold ambient temp 62deg. also my first time and unsure of myself. The large breakes in the readings could not be helped his machine he explained has a problem with large distributors.
run starts at 2400rpm torque is 250, horsepower110
max TQ251.6
max HP 191 :rolleyes:
run ends at5200RPM
Second run.
Starts at 2200rpm
Max tq. 290.9
Max hp.192.9
finish run at 5600rpm
3rd run
Starts at 4400rpm
max tq. 259.7
max Hp. 220.0
run ends at 5200 rpm Tq. and Hp. just over 200
Tips I was given
1 My air filters are restrictive.
2 Try a smaller secondary jets.I'm running very rich at the top.
3 I was using 93 octane gas I was told thats a common mistake that next time use 83 for a faster burn.
4 The linkage betweem my carbs is too weak and is flexing too much.
Overall I was pleased with how smoothly she ran with no ignition break up, but I was expecting better power nombers.specialy with a Buick GN putting m to shame with 462 RWHP and an ungodly amount of torque 550+
:eek: [Modified by PrarieShark, 5:30 PM 3/8/2003]
Team Owner
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Re: Day at the dyno (PrarieShark)
Congrats to you, but for some reason I cannot bring myself to dyno. :rolleyes:
Race Director
Joined: Aug 1999
Posts: 10,073
Likes: 1
From: Toronto
Re: Day at the dyno (PrarieShark)
Second run.
Starts at 2200rpm
Max tq. 290.9
3rd run
Starts at 4400rpm
max Hp. 220.0
Starts at 2200rpm
Max tq. 290.9
3rd run
Starts at 4400rpm
max Hp. 220.0
Using a 20% loss through the TH350 to the rear wheels, you are looking at ~275 flywheel hp and 362 flywheel tq. I'd say the only think holding you back is the TH350.
Thread Starter
Melting Slicks
Joined: Mar 2002
Posts: 2,313
Likes: 0
From: The cure for the blues is eight cylinders roaring
Re: Day at the dyno (SuperFast80)
Second run.
Starts at 2200rpm
Max tq. 290.9
3rd run
Starts at 4400rpm
max Hp. 220.0
Pretty good max numbers there especially for a set up that needs some fine tuning. :cheers:
Using a 20% loss through the TH350 to the rear wheels, you are looking at ~275 flywheel hp and 362 flywheel tq. I'd say the only think holding you back is the TH350.
Starts at 2200rpm
Max tq. 290.9
3rd run
Starts at 4400rpm
max Hp. 220.0
Pretty good max numbers there especially for a set up that needs some fine tuning. :cheers:
Using a 20% loss through the TH350 to the rear wheels, you are looking at ~275 flywheel hp and 362 flywheel tq. I'd say the only think holding you back is the TH350.
