mraley
Well-known member
Well, I had the opportunity to test out the new D.U.I. Dizzy and let me say I am amazed at the change in performance.
First, It looks sharp. It will catch many an eye when you raise your hood. In my opinion This ranks as one of the best modifications I have done.
Installation was no problem. It is alot bigger as you can see from a stock dizzy, even bigger than the Duraspark II system that I was running.
For comparison, I ran two dyno's today. One before the install on the Duraspark II system, then later in the day with new D.U.I.
Before we go into the results, let me back track to last summer before I did the T-5 Swap. Below are the results from my last dyno that was done in July 2005. The temp. outside was in the 90's. My understanding is that dyno results will vary depending on humidity and temperature.
This is the 3rd run over a period of about a year. This run was made to see how many horses we gained at the rear wheels by adding an Aussie Head and a Holley 350. Previously we were running a 250 Head and a Holley-Weber Progressive 2 Barrel.
Before:
Max HorsePower 119.7 @ 5100
Max Torque 143.3 @ 3100
Top Speed 120 @ 5200 RPM
After
Max Horsepower 139.8 @ 5100
Max Torque 164.7 @ 3150
Didn't to top Speed this time....
Now....The following dyno is the before and after the install today. It was a much cooler day, about 75 and very low humidity.
Before..............
163.5 at 5100 RPM's at Rear Wheels
192.6 Max Torque at 3150
After
176.7 at 5170 RPM's at Rear Wheels
202.10 Max Torque at 3270
To sum it up...The new D.U.I. produced 13.20 more HP at the Rear Wheels and 9.50 more Torque.
If you break down the cost of the new dizzy per HP gain,you can't beat it. I spent a lot more in my head swap to gain 20 HP. This is one add that is absolutely worth the money.
In terms of "seat of the pants" feel, it seems alot smoother. I used to have a slight vibration around 2200-2500 RPMs. I has associated it with the T-5 Swap. With the new dizzy it went away. My lower end torque is noticeably improved, and once again you can't beat the look.
In case you can't tell, I'm impressed!!!!! Let me know your thoughts
First, It looks sharp. It will catch many an eye when you raise your hood. In my opinion This ranks as one of the best modifications I have done.
Installation was no problem. It is alot bigger as you can see from a stock dizzy, even bigger than the Duraspark II system that I was running.
For comparison, I ran two dyno's today. One before the install on the Duraspark II system, then later in the day with new D.U.I.
Before we go into the results, let me back track to last summer before I did the T-5 Swap. Below are the results from my last dyno that was done in July 2005. The temp. outside was in the 90's. My understanding is that dyno results will vary depending on humidity and temperature.
This is the 3rd run over a period of about a year. This run was made to see how many horses we gained at the rear wheels by adding an Aussie Head and a Holley 350. Previously we were running a 250 Head and a Holley-Weber Progressive 2 Barrel.
Before:
Max HorsePower 119.7 @ 5100
Max Torque 143.3 @ 3100
Top Speed 120 @ 5200 RPM
After
Max Horsepower 139.8 @ 5100
Max Torque 164.7 @ 3150
Didn't to top Speed this time....
Now....The following dyno is the before and after the install today. It was a much cooler day, about 75 and very low humidity.
Before..............
163.5 at 5100 RPM's at Rear Wheels
192.6 Max Torque at 3150
After
176.7 at 5170 RPM's at Rear Wheels
202.10 Max Torque at 3270
To sum it up...The new D.U.I. produced 13.20 more HP at the Rear Wheels and 9.50 more Torque.
If you break down the cost of the new dizzy per HP gain,you can't beat it. I spent a lot more in my head swap to gain 20 HP. This is one add that is absolutely worth the money.
In terms of "seat of the pants" feel, it seems alot smoother. I used to have a slight vibration around 2200-2500 RPMs. I has associated it with the T-5 Swap. With the new dizzy it went away. My lower end torque is noticeably improved, and once again you can't beat the look.
In case you can't tell, I'm impressed!!!!! Let me know your thoughts