I had a big day today! I got up the nerve to take TT331FB for a spin. Given that my fuel pressure, boost pressure and RPM inputs are not online yet, I wanted to just go for a short lap around the house. First, the bad..
My trac-loc is making a lot of noise when I turn. The noise is worse when costing and much better under acceleration. As soon as the front wheels are straight, the noise goes away. I rebuilt this myself so I don’t know if I messed up or if it is normal to make noise for a while. Perhaps, some one knows this and I would like some input. Second, I cannot get my brake pedal up. I have tried everything. I re-bleed the MC, power bled the rest, bled each fitting, bled the proportioning valve and the pedal still goes almost to the floor. I checked the rear caliper adjustment and tightened it up a little. I’m to the point that I suspect MC problems and I plan to try another one. Observing the operation, with the cap off, I see that the piston is moving as soon as I start to push the pedal. The rear reservoir has a good stream of fluid the pushes out of the air vent. The front doesn’t do this at all.
The good news…I have created a monster! Under just vacuum, the engine pulls well and you can spin the tires just with moderate gas pedal. I made a few short pulls under boost. In second gear, I applied about half throttle. The boost came up to about 6 PSI before I let off the gas. As the boost came on, the rear tires came loose! I can’t even comprehend what 12 PSI is going to feel like! This car pulls hard and I haven’t even got the throttle opened up yet! I have chased down all the leaks. I have lots of aluminum and things that were tight get loose when hot. The fan is doing a great job of keeping the engine at 180-185 DEGF. I haven’t seen the oil cooler come on yet.
When I get the brakes checked out, and all the data logging up and running, I will try more pulls. Until I can relate A/F to boost and RPM, I am hesitant to push the motor.
My trac-loc is making a lot of noise when I turn. The noise is worse when costing and much better under acceleration. As soon as the front wheels are straight, the noise goes away. I rebuilt this myself so I don’t know if I messed up or if it is normal to make noise for a while. Perhaps, some one knows this and I would like some input. Second, I cannot get my brake pedal up. I have tried everything. I re-bleed the MC, power bled the rest, bled each fitting, bled the proportioning valve and the pedal still goes almost to the floor. I checked the rear caliper adjustment and tightened it up a little. I’m to the point that I suspect MC problems and I plan to try another one. Observing the operation, with the cap off, I see that the piston is moving as soon as I start to push the pedal. The rear reservoir has a good stream of fluid the pushes out of the air vent. The front doesn’t do this at all.
The good news…I have created a monster! Under just vacuum, the engine pulls well and you can spin the tires just with moderate gas pedal. I made a few short pulls under boost. In second gear, I applied about half throttle. The boost came up to about 6 PSI before I let off the gas. As the boost came on, the rear tires came loose! I can’t even comprehend what 12 PSI is going to feel like! This car pulls hard and I haven’t even got the throttle opened up yet! I have chased down all the leaks. I have lots of aluminum and things that were tight get loose when hot. The fan is doing a great job of keeping the engine at 180-185 DEGF. I haven’t seen the oil cooler come on yet.
When I get the brakes checked out, and all the data logging up and running, I will try more pulls. Until I can relate A/F to boost and RPM, I am hesitant to push the motor.