I drove around alittle tonight and decided to run another 1/4 mile. I tried to stop the tire from spinning but ended up just slowing myself down. I ended up running a 17.5.
The same thing occurred with the top speed. I ran to 85 and it stopped short which might also play a role in the 17.5. I tried a second run and went to 80 but it only registered a top speed of around 69. I'll need to ask someone to follow me around a little tomorrow to make sure the speedometer is correct. I replaced the gear with the appropriate size but maybe the speedo itself is off.
I spent a little time cleaning up the stock 4v intake today. I can't help but think I should get some aftermarket piece and be done with it. However, I already have the stock one so I could easily install it without any trouble. Decisions, decisions.
EDIT: I tested the speedometer today with my wife following me in my truck. At 30, the speedometer is about 2 MPH high (28 MPH). When going 70, she was only going 65. Seems the speedometer gear I purchased is not exactly the right one.
Saturday, July 11, 2009
Driving Again & Performance Test
I drove the Mustang around tonight to make sure the rattle sound from the rear hubcap was fixed. The sound does seem to be fixed which is good.
I drove around the neighborhood some and then drove on the highway. What I thought was road noise must have been the rear wheel bearing as it is much quieter at highway speeds.
I had the new G-Timer in the Mustang so I decided I would try a quick 1/4 mile run. I spun my tire (no posi) quite a bit when I took off. I shifted at 4,500 RPM. The timer is suppose to flash when it completes a 1/4 mile. I hit 90 and then started to slow down and after slowing down, it flashed and said my top speed was 80. Not sure why that would be but these are the numbers it recorded:
1/4 Speed - 80.4 MPH
1/4 Time - 17.00 Sec
1/8 Speed - 65.6 MPH
1/8 Time - 10.9 Sec
60' - 2.63 Sec
0-60 - 8.93 Sec
I'll try again another time before replacing the carb. I think the wheel spin likely impacted my time. I'm not sure the carb will help much without rear gears to keep the RPM high but we will see.
I drove around the neighborhood some and then drove on the highway. What I thought was road noise must have been the rear wheel bearing as it is much quieter at highway speeds.
I had the new G-Timer in the Mustang so I decided I would try a quick 1/4 mile run. I spun my tire (no posi) quite a bit when I took off. I shifted at 4,500 RPM. The timer is suppose to flash when it completes a 1/4 mile. I hit 90 and then started to slow down and after slowing down, it flashed and said my top speed was 80. Not sure why that would be but these are the numbers it recorded:
1/4 Speed - 80.4 MPH
1/4 Time - 17.00 Sec
1/8 Speed - 65.6 MPH
1/8 Time - 10.9 Sec
60' - 2.63 Sec
0-60 - 8.93 Sec
I'll try again another time before replacing the carb. I think the wheel spin likely impacted my time. I'm not sure the carb will help much without rear gears to keep the RPM high but we will see.
Sunday, July 5, 2009
Rear Brakes & Bearing Replacement Complete
Today I finished up repairing the rear brakes and bearings. Since I had already painted everything, it was not a very difficult job. However, it has been over 100 degrees for the past 10 days so it was not relaxing my any means.
I stripped the rear axle flange and about 1" inward. This cleaned up the mounting points. This also gives me a little more flexibility when the time comes to strip and repaint the entire axle. I can leave the brakes installed and bag off the ends of the axle if I want.
I purchased brake shoes, cylinders, drums, deluxe hardware kit, and gaskets to finish off the rear axle job. I was pleased with the parts as they are all by Wagner. However, the deluxe hardware kit was missing a spring for a bar which presses out on the pads and the cylinders did not come with the push rods.
After I installed everything, I took the car for a drive around the block. There was previously a chirp or squeak type noise with each rotation of the passenger tire. As I drove, I could here a tick type noise from the same side. Once I made it home, I found the GT emblem on the hubcap was loose. I fixed that but have not taken it out for a drive to confirm it was the source.
I'll likely wait to install the carburetor for a couple of weeks. I've been really busy and want to have the car together for a while. It is so hot I don't know that I will drive it but I don't want a another project waiting on me when I get home from work.
I'll test out the car with the G-Timer in the next few days. I plan to make a spreadsheet to track all the items I change and the results on the G-Timer. I'm not sure if it will be worth the effort but it will be nice to actually see the improvements made.
I really wish I could have done the first run before I switched to synthetic oil, changed to an open element filter, rebuilt the carb, and set the timing. These things seemed to make a difference in performance but I can substatiate it with numbers.
I stripped the rear axle flange and about 1" inward. This cleaned up the mounting points. This also gives me a little more flexibility when the time comes to strip and repaint the entire axle. I can leave the brakes installed and bag off the ends of the axle if I want.
I purchased brake shoes, cylinders, drums, deluxe hardware kit, and gaskets to finish off the rear axle job. I was pleased with the parts as they are all by Wagner. However, the deluxe hardware kit was missing a spring for a bar which presses out on the pads and the cylinders did not come with the push rods.
After I installed everything, I took the car for a drive around the block. There was previously a chirp or squeak type noise with each rotation of the passenger tire. As I drove, I could here a tick type noise from the same side. Once I made it home, I found the GT emblem on the hubcap was loose. I fixed that but have not taken it out for a drive to confirm it was the source.
I'll likely wait to install the carburetor for a couple of weeks. I've been really busy and want to have the car together for a while. It is so hot I don't know that I will drive it but I don't want a another project waiting on me when I get home from work.
I'll test out the car with the G-Timer in the next few days. I plan to make a spreadsheet to track all the items I change and the results on the G-Timer. I'm not sure if it will be worth the effort but it will be nice to actually see the improvements made.
I really wish I could have done the first run before I switched to synthetic oil, changed to an open element filter, rebuilt the carb, and set the timing. These things seemed to make a difference in performance but I can substatiate it with numbers.
Saturday, July 4, 2009
Rear Brakes & General Update
I've received the G-Tuner and Holley carburetor. I tried out the G-Tuner in my Accord just to see how it works (recorded an amazing 17.85 quarter mile). I plan to use it in the Mustang before installing the carburetor. I can then use it again afterwards to keep track of improvements.
I've took out the rear axles a few weeks ago to replace the wheel bearings. To complete the project, I needed to order gaskets for the axles. I ordered them from NPD and decided to go ahead and buy parts for the rear brakes as the shipping would not change.
My plan is to replace the rear brakes and bearings at the same time. I would like to remove the rear axle and restore the entire axle. However, I believe it would begin to landslide and I don't have the money for a gear change and trac-lok. I'll stop at the brakes and then just install the carburetor next.
Today, I cleaned the axles and brake backing plates. I painted them with Rustoleum 7776 which is a flat black color. The backing plates were covered in grease, dirt, and brake fluid. They took a while to clean up. The paint takes a while to dry so I'll either install everything tomorrow or over a few nights next week. I'll post pictures of everything then as well.
I've took out the rear axles a few weeks ago to replace the wheel bearings. To complete the project, I needed to order gaskets for the axles. I ordered them from NPD and decided to go ahead and buy parts for the rear brakes as the shipping would not change.
My plan is to replace the rear brakes and bearings at the same time. I would like to remove the rear axle and restore the entire axle. However, I believe it would begin to landslide and I don't have the money for a gear change and trac-lok. I'll stop at the brakes and then just install the carburetor next.
Today, I cleaned the axles and brake backing plates. I painted them with Rustoleum 7776 which is a flat black color. The backing plates were covered in grease, dirt, and brake fluid. They took a while to clean up. The paint takes a while to dry so I'll either install everything tomorrow or over a few nights next week. I'll post pictures of everything then as well.
Tuesday, June 23, 2009
Purchase of G-Tech Equivalent (Passport GT1)
I checked eBay after work today and found a G-Tech unit for $40. I'd always heard of G-Tech but did not know much about its accuracy. After a few internet searches, I found out there are a number of performance meters like the G-Tech. As I read about then, I learned about the Passport GT1. The GT1 was new, cost only $28 ($9 shipping), and has more features than the G-Tech.
GT1 Features:
0-60 and 60-0 time
horsepower (avg and peak)
1/4 mile time and speed
1/8 mile time and speed
0-10/20/30/40/50/60/70/80/90
G force - acceleration, deceleration, right, and left
G-Tech Features:
0-60 time
60-0 feet
1/4 mile time and speed
horsepower
initial and constant G
I wish the GT1 had a 60-0 feet measurement but otherwise it beats the G-Tech. The GT1 also looks nicer and is made only 6 years ago compared to the G-Tech which was made 12 years ago. I've not seen a new G-Tech but this is a new GT1 still in the package.
For those who are not familiar, the GT1 is pictured below:
GT1 Features:
0-60 and 60-0 time
horsepower (avg and peak)
1/4 mile time and speed
1/8 mile time and speed
0-10/20/30/40/50/60/70/80/90
G force - acceleration, deceleration, right, and left
G-Tech Features:
0-60 time
60-0 feet
1/4 mile time and speed
horsepower
initial and constant G
I wish the GT1 had a 60-0 feet measurement but otherwise it beats the G-Tech. The GT1 also looks nicer and is made only 6 years ago compared to the G-Tech which was made 12 years ago. I've not seen a new G-Tech but this is a new GT1 still in the package.
For those who are not familiar, the GT1 is pictured below:
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