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Powerglide shakedown run

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Old Aug 4, 2004 | 09:47 PM
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Default Powerglide shakedown run

Well for those who have been interested in what a glide will do here's my update. This is a heads/cam, bolt on car that my current guess at raceweight is 3250 (scales were closed tonight).

The previous best motor pass with the A4 was in a DA of -200 and was run on 26" ET Streets. The pass tonight was a DA of +2200 and was on 28" Slicks. The track wasn't at it's best as the start of test n tune was delayed due to rain. Made two passes on motor and then the rain came again and they cancelled the rest of the night.

Prior best motor:

60' - 1.689
1/4 - 11.666
mph - 117.90

New best motor:

60' - 1.691
1/4 - 11.536
mph - 119.79

I'm still running the 3.70 rear gear to get some passes on the gas before I decide on either a 4.30 or 4.56. I expected the launches to be softer than before with the bigger tire, the 1.76 glide first gear and the track/weather conditions. I was quite pleased with the results to say the least.

Eric
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Old Aug 5, 2004 | 01:35 AM
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awesome eric,glad to see the car is moving well
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Old Aug 5, 2004 | 07:41 AM
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Thanks Sean. Can't wait to hit the gas now that I've solved the solenoid problem. Will be anxious to hear what your car is doing on the bottle as well.
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Old Aug 5, 2004 | 09:43 AM
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it goes ok

haven't been able to hit it with a real kit yet. tried recently but had a bad n20 selenoid.

not in a hurry, keep finding other things to do in this crappy heat and humidity other than wrench lol.

good luck man
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Old Aug 5, 2004 | 10:10 AM
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Originally Posted by SilverGhost
not in a hurry, keep finding other things to do in this crappy heat and humidity other than wrench lol.
I hear ya.

How can I post a thread about my glide and not have Coach jump in. Must be on sabbitcal
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Old Aug 5, 2004 | 01:25 PM
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Glides rule!

I wish I'd kept the 2-speed in mine instead of switching to a TH400... It'll probably get another glide when I put the car back together.
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Old Aug 5, 2004 | 02:10 PM
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Thanks George. Bet you never heard that a glide won't work well in our cars I'm loving this and when I back it up with the right gear and hit the gas...
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Old Aug 5, 2004 | 03:09 PM
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Originally Posted by next
I hear ya.

How can I post a thread about my glide and not have Coach jump in. Must be on sabbitcal
I am here Brother. I have started football and in-service for school which starts next Wednesday. My time on the computer has been limited the last couple of days.

I am digging the fact that you made an improvement with the glide.

I also have always been told that a glide would not work in the LS1 f-bodies. Looks like this is going to be my next mod over the winter. The Hot Rod is going to get a glide.

Coach
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Old Aug 5, 2004 | 03:27 PM
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Great times what stall is your converter? Any ideas on how efficient it is? With that 28 inch slick and 3.70 gear you will pick up a ton with the 4.11-4.56 swap

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Old Aug 5, 2004 | 03:38 PM
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Coach, duty calls, good to hear it's getting close to the season. I'm real pumped about the mph picking up in this weather. Holds a lot of promise for the future. The glides are just so efficient, makes it a fun toy. Cool on your decision.

Chris, the converter is a Coan 8" Max that was designed to stall 4000 on the brake and 5500 on the gas. I don't know the efficiency of it, but the needle bearings in lieu of friction plates has to help On motor I'm going through the traps at 6000 and once I make some passes on the gas I'll be throwing in the new gears
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Old Aug 5, 2004 | 05:31 PM
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Originally Posted by next
Thanks George. Bet you never heard that a glide won't work well in our cars I'm loving this and when I back it up with the right gear and hit the gas...
That's all I heard when I did it... Unfortunately, at the time I was battling other issues as well, so I wasn't really able to do any real back to back comparisons between the A2 and A3... When I destroyed a planetary set in the glide (my fault for using a stock 1.82 planet), I just went to a TH400... It took a lot of work to get the car to hook with the 2.48 1st gear vs. the 1.82 in my glide, but eventually it came around.

I do wish I'd kept the 2-speed now, and just fixed it properly with an aftermarket planetary...
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Old Aug 5, 2004 | 05:51 PM
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Originally Posted by GeorgeC
That's all I heard when I did it...
Amen to that, my brother!


When I was meeting with my tranny builder and going over the specs for the build he showed me some 1.80 planetaries vs. 1.76 WOW what a difference.
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Old Aug 5, 2004 | 06:15 PM
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I really like my power glide. I have the 1.9X gear set. Best of a 1.34 60' in 2000+ DA.
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Old Aug 5, 2004 | 06:25 PM
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Tom, nice 60ft time. What kind of HP, converter, and weight was that with? TCI is building up a 1.92 Glide with all the bells and whistles for my '00. I was split as to what gear ratio to go with. At first I was going with the 1.8 but then decided "what the heck, I'll hook it somehow!" and went with the 1.92.
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Old Aug 5, 2004 | 06:37 PM
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Originally Posted by Colonel
Tom, nice 60ft time. What kind of HP, converter, and weight was that with? TCI is building up a 1.92 Glide with all the bells and whistles for my '00. I was split as to what gear ratio to go with. At first I was going with the 1.8 but then decided "what the heck, I'll hook it somehow!" and went with the 1.92.
Thanks Colonel,

Yes that's it. A 1.92. I can never remember that.

Power level? 540 SAE at the wheels and lots of torque.

I have a COEN converter. Its an 8". The stall speed was built to engine specs. Never did know the stall but it's probably about 4600. The converter flashes to around 5500 to 5600 when I stab it. Sorry I can't help much there but I really don't know the stall speed.

Race weight was around 3300 to 3350.

Gearing is 4.86 for now. When the weather cools down I'll go with a 4.70 and try that.

Weather will be pretty cool for the summer months this weekend
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Old Aug 5, 2004 | 06:49 PM
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Originally Posted by Tom the roofer
I have a COEN converter. Its an 8". The stall speed was built to engine specs. Never did know the stall but it's probably about 4600. The converter flashes to around 5500 to 5600 when I stab it. Sorry I can't help much there but I really don't know the stall speed.

Race weight was around 3300 to 3350.

Gearing is 4.86 for now. When the weather cools down I'll go with a 4.70 and try that.

Weather will be pretty cool for the summer months this weekend
Tom,

Sounds like we have the same converter Sweet short times! On the gas I'm making 507rwhp (from stab of the throttle thru the entire pull) and 550rwtq and am hoping to see some good times soon. What RPM are going through the traps at?

Eric
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Old Aug 5, 2004 | 06:57 PM
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Originally Posted by next
Tom,

Sounds like we have the same converter Sweet short times! On the gas I'm making 507rwhp (from stab of the throttle thru the entire pull) and 550rwtq and am hoping to see some good times soon. What RPM are going through the traps at?

Eric
Thanks Eric.

My power curve is pretty much a straight line too

Trap RPM ?

Depends on the weather. When I run 9.90's I go thru at 7650 and when I run 10.0's about 7550 or so. MPH ranges from 133 + to just under 136.

I'll be changing gears in early september
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Old Aug 5, 2004 | 07:46 PM
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Originally Posted by Tom the roofer
Thanks Eric.

My power curve is pretty much a straight line too

Trap RPM ?

Depends on the weather. When I run 9.90's I go thru at 7650 and when I run 10.0's about 7550 or so. MPH ranges from 133 + to just under 136.

I'll be changing gears in early september
Tom,

I swear my power curve is nothing more than a direct result of going with a Coan converter.

Now that's some rpms! I'll have to take back about what I said of having the same converter The boys at Coan build 'em to motor/car specs and I don't have what you do!

The gear calculator I've used doesn't seem to back up what I'm currently running so I'm gonna be old fashioned and run it on the gas and see what I'm going through the traps at. My race weight is around 3250 and I'll be trying to go through at 6700. My current mph on motor is 119 and trap rpms are at 6000. I'd be guessing without a nitrous pass so I'll wait and hopefully the rain will hold off for me tomorrow night to find out

Eric
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Old Aug 5, 2004 | 07:49 PM
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Thanks for the feedback.

I'm thinking a 1.92 with 4.88s, ~6400 stall, only 2800 lbs, and the power this C5R is making is going to be a REAL bitch to hook. Oh well, should be fun!
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Old Aug 5, 2004 | 08:27 PM
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Interesting thread guys! I always wondered if a glide would work with the LS1. Are they only good in liteweight cars? Bet driving one on the street is out of the question?!?

Someday I have to do something for a stronger tranny, but haven't decided what it will be yet - I want to keep it on the street at least a little and be able to cruise some. Well, my A4 is holding up well on motor, I just have to stay away from the bottle!
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