5.65@124 - stock 317's, AC, pump gas, s480 towing a trailer ;)
02-11-2013, 09:37 PM
#101
This statement kind of confused me. If you drop from a 3.73 gear to a 3.08 or 3.27 wouldn't you need to loosen the convertor some? Not tighten it? I realize you lose the mechanical advantage and this would help with spool but since you are using a power glide and not a TH400 wouldn't tightening the convertor counter act it and kill that advantage to spool?
Again, still learning and trying to see the reasoning of why a tighter convertor with a Power glide. I would have thought it would need to be loosened a little.
Thanks.
Again, still learning and trying to see the reasoning of why a tighter convertor with a Power glide. I would have thought it would need to be loosened a little.
Thanks.
The torque converter is a fluid coupling, the harder the motor pushes on it the more slip you will see. A lower numerical gear in the rear puts a greater load against the engine thus requiring a tighter converter, on the line the lower numerical gear will allow a higher stall speed when on the footbrake since it takes more power to push the tires to the point they will push through the brakes.
02-11-2013, 10:10 PM
#102
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The torque converter is a fluid coupling, the harder the motor pushes on it the more slip you will see. A lower numerical gear in the rear puts a greater load against the engine thus requiring a tighter converter, on the line the lower numerical gear will allow a higher stall speed when on the footbrake since it takes more power to push the tires to the point they will push through the brakes.
I was thinking with the 3.42's and the PG I will be able to build plenty of boost even though I have a tight convertor.
02-11-2013, 11:05 PM
#105
Okay, that makes perfect sense. On my TH400 I raced with 3.90 gears last year and had a hard time building boost. I then put in some 3.42's. I didn't get a chance to race but on the street I was able to easily build boost to 10-12lbs. I have a very tight convertor. A 3400 PTC. Since I have now switched to a power glide will that allow me to even build to a higher stall and more boost or does it not matter of the trans gearing but only the rear gearing?
I was thinking with the 3.42's and the PG I will be able to build plenty of boost even though I have a tight convertor.
I was thinking with the 3.42's and the PG I will be able to build plenty of boost even though I have a tight convertor.
02-12-2013, 10:50 AM
#110
i really think my converter is leaving some on the table at this point as well. if you watch my videos it takes a good bit to get the car lit up. i can send you a datalog and config file if you have time to take a look at it and see if you see anything with the AFR/timing that could be causing it to be such a slouch. i'm thinking it's just a converter that is too tight down low and not tight enough up top.
02-13-2013, 09:19 AM
#113
I'm going to make a screen filter for the turbo and see if the car picks up at all vs. the 6" filter I have been running from RPS. I have seen some cars pick up a pretty good amount by removing the air filter and since I am having issues keeping the boost up throughout the run my car might just benefit from it. Def. worth the few bucks in aluminum mesh.
02-13-2013, 12:06 PM
#114
My S480 is mounted similar to yours and I run a 9" filter with a reverse cone and don't think I am losing much. It is mounted down low behind the bumper cover below the headlight and connected with wire-reinforced plastic tube. Would need to cut about a 6" hole in the fenderwell.
02-16-2013, 04:41 PM
#115
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02-16-2013, 08:27 PM
#117
TECH Apprentice
I got a pulse leash from Randy last month, to go on the Camaro we are building, the screen stopped working the next day, I called Randy up and he sent another one out, no hassle, no dodging, just a new one coming, with a call tag for the other one. Great service.
Here is a link to his site,and the boost controllers.
http://www.leashelectronics.com/Boos...rollers_c3.htm
We have his sportsman board box in the Camaro also, it works great.
Here is a link to his site,and the boost controllers.
http://www.leashelectronics.com/Boos...rollers_c3.htm
We have his sportsman board box in the Camaro also, it works great.
02-17-2013, 09:11 PM
#120
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Well it runs faster without anything over my filters. 113mph with filters, 118mph without. Why wouldn't the mesh be closer to without? Is there a different mesh screen? I am worried more about it getting sucked in then being restrictive.