roll racing with an a4?
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Joined: Jan 2012
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From: Johnstown, PA
Car: 94 camaro z28
Engine: lt1
Transmission: 4l60e
Axle/Gears: 3.73
roll racing with an a4?
It sounds really stupid and simple but whats the least traumatic way to roll race with an a4? just mashing seems really hard on it especially on a 4-3 downshift with the shift kit, should i manually shift the thing? it takes forever for it to shift down too, my t-5 trans am was much easier from a roll.
Joined: Sep 2003
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From: Pittsburgh PA
Car: 89 Iroc-z
Engine: 555 BBC Turbo
Transmission: TH400
Axle/Gears: MWC 9” 3.00
Re: roll racing with an a4?
You have to know what speeds are best for each gear. If the tranny is setup right, it should down shift very quickly as long as the speed is right. You have to experiment.
I also used to manually shift my 700r4. Occassionally i would hold gear for a roll but it may not be good for the tranny unless its got a manual valvebody and is designed to hold gear. My favorite was to do a 5000 rpm first gear start. On warm day tires would hook and car would rocket ahead with out any delay from a downshift. This was a slow roll and from 5000 rpm, shifted at 6800, it went by in a flash so needed to be quick on the stick lol
Autos arent bad from a roll in certain applications, just need to get them in the sweet spot
I also used to manually shift my 700r4. Occassionally i would hold gear for a roll but it may not be good for the tranny unless its got a manual valvebody and is designed to hold gear. My favorite was to do a 5000 rpm first gear start. On warm day tires would hook and car would rocket ahead with out any delay from a downshift. This was a slow roll and from 5000 rpm, shifted at 6800, it went by in a flash so needed to be quick on the stick lol
Autos arent bad from a roll in certain applications, just need to get them in the sweet spot
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From: Ahead of you...
Car: 1984 LG4 Camaro
Engine: 350 Roller Motor
Transmission: Level 10 700R4
Axle/Gears: Strange 12 bolt 3.42
Re: roll racing with an a4?
It depends on the trans, most will downshift to 2nd at 40mph - right at the sweet spot in power usually.
Personally in my Camaro I let the trans downshift to 2nd and then manually wind out the gear (it short shifts).
Personally in my Camaro I let the trans downshift to 2nd and then manually wind out the gear (it short shifts).
Joined: Jul 2003
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From: NYC / Jersey
Car: 1990 Trans Am GTA
Engine: Turbo 305 w/MS2
Transmission: 700R4
Re: roll racing with an a4?
Originally Posted by Savage388
It sounds really stupid and simple but whats the least traumatic way to roll race with an a4? just mashing seems really hard on it especially on a 4-3 downshift with the shift kit, should i manually shift the thing? it takes forever for it to shift down too, my t-5 trans am was much easier from a roll...
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From: chicago and rockford
Car: 92 trans am ws6
Engine: LT1
Transmission: T56
Axle/Gears: 3.42 ls1 rear end posi
Re: roll racing with an a4?
Sounds like something is wrong, you shouldn't be racing with it. Try reaching out to Dana in the transmission section, because it sounds like it is either that your detent cable isn't set correctly, or perhaps your throttle valve or governor are suspect. Either way, properly built stalled automatics are pretty tough to contend with from a roll, when properly built...
Joined: Jul 2003
Posts: 10,538
Likes: 206
From: NYC / Jersey
Car: 1990 Trans Am GTA
Engine: Turbo 305 w/MS2
Transmission: 700R4
Re: roll racing with an a4?
Originally Posted by transamws6
I AGREE something is wrong my auto was quick to shift and strong to roll...
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From: Georgia
Car: 91' Z28. 70' Dune Buggy
Engine: LSX Cam/Full Bolt ons
Transmission: T56
Axle/Gears: 4.10
Re: roll racing with an a4?
Being the owner of both a 305 auto an a 350 T5 I think Orr89RocZ hit the nail on the head. You just have to learn the sweet spot with the auto.
The 305 auto seemed the most impressive at around 25-30mph. At WOT It would drop to first and take off. It was also impressive at the 3-2 downshift. However at any other speed it always felt as if it was out of its power band. Either is at the bottom or top of the gear at WOT.
My 350 seems much more quicker. Not soo much that it's got more power, I believe more so of the extra gear. I can always get into the RPM range I want. At pretty much any speed.
The 305 auto seemed the most impressive at around 25-30mph. At WOT It would drop to first and take off. It was also impressive at the 3-2 downshift. However at any other speed it always felt as if it was out of its power band. Either is at the bottom or top of the gear at WOT.
My 350 seems much more quicker. Not soo much that it's got more power, I believe more so of the extra gear. I can always get into the RPM range I want. At pretty much any speed.
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From: Johnstown, PA
Car: 94 camaro z28
Engine: lt1
Transmission: 4l60e
Axle/Gears: 3.73
Originally Posted by Street Lethal
Quote:
Originally Posted by Savage388
It sounds really stupid and simple but whats the least traumatic way to roll race with an a4? just mashing seems really hard on it especially on a 4-3 downshift with the shift kit, should i manually shift the thing? it takes forever for it to shift down too, my t-5 trans am was much easier from a roll...
Sounds like something is wrong, you shouldn't be racing with it. Try reaching out to Dana in the transmission section, because it sounds like it is either that your detent cable isn't set correctly, or perhaps your throttle valve or governor are suspect. Either way, properly built stalled automatics are pretty tough to contend with from a roll, when properly built...
Originally Posted by Savage388
It sounds really stupid and simple but whats the least traumatic way to roll race with an a4? just mashing seems really hard on it especially on a 4-3 downshift with the shift kit, should i manually shift the thing? it takes forever for it to shift down too, my t-5 trans am was much easier from a roll...
Sounds like something is wrong, you shouldn't be racing with it. Try reaching out to Dana in the transmission section, because it sounds like it is either that your detent cable isn't set correctly, or perhaps your throttle valve or governor are suspect. Either way, properly built stalled automatics are pretty tough to contend with from a roll, when properly built...
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Joined: Jul 1999
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From: Sacramento, CA
Car: 89 Iroc
Engine: 383
Transmission: 700R4
Axle/Gears: 3.45
Re: roll racing with an a4?
It should be dropping in to 2nd at 50mph. I'm slightly confused though. You said it shifts really hard? But you also said that it doesn't shift immediately is that correct?
You do want it to shift hard though.
Unless you're caught off guard then you should manually downshift to the best gear for that speed and then start the race from there.
You do want it to shift hard though.
Unless you're caught off guard then you should manually downshift to the best gear for that speed and then start the race from there.
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From: Johnstown, PA
Car: 94 camaro z28
Engine: lt1
Transmission: 4l60e
Axle/Gears: 3.73
Originally Posted by DannyT
It should be dropping in to 2nd at 50mph. I'm slightly confused though. You said it shifts really hard? But you also said that it doesn't shift immediately is that correct?
You do want it to shift hard though.
Unless you're caught off guard then you should manually downshift to the best gear for that speed and then start the race from there.
You do want it to shift hard though.
Unless you're caught off guard then you should manually downshift to the best gear for that speed and then start the race from there.
so it'll be okay to down shift it manually? I'd rather do that then let it downshift itself.
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Joined: Jul 1999
Posts: 784
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From: Sacramento, CA
Car: 89 Iroc
Engine: 383
Transmission: 700R4
Axle/Gears: 3.45
Re: roll racing with an a4?
yea theres a small delay from when I floor it to when it kicks down and the shifts don't seem to be as fast as they should. i could just not be used to the auto yet though.
so it'll be okay to down shift it manually? I'd rather do that then let it downshift itself.
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so it'll be okay to down shift it manually? I'd rather do that then let it downshift itself.
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ANYTIME I think I may race someone i will manually hold the gear I'm in just so that I don't get caught off guard. I don't want there to be any confusion about who won the race.
Joined: Apr 2004
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From: Salt Lake City, Utah
Car: 1988 camaro "SS"/ 1991 305/T5
Engine: 383 LT1 in progress/LT1TBI 355 soon
Transmission: Probuilt 700R4 3600 stall/ T5
Axle/Gears: Moser axles, 3.42 Eaton Posi
Re: roll racing with an a4?
When I race from a roll I usually start off in second gear and punch it, rap it out then slap it into third and ride it out until I absolutely have to shift into forth. That's what has always worked for me. I do the same from a dig so that the drop from second to third isn't so drastic.
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From: Highland Indiana
Car: 1999 Trans Am Ram Air
Engine: LS1
Transmission: 4L60E
Axle/Gears: 3.23
Re: roll racing with an a4?
When I race from a roll I usually start off in second gear and punch it, rap it out then slap it into third and ride it out until I absolutely have to shift into forth. That's what has always worked for me. I do the same from a dig so that the drop from second to third isn't so drastic.
I'm going to assume its a massive typo.
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Joined: Jan 2012
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From: Johnstown, PA
Car: 94 camaro z28
Engine: lt1
Transmission: 4l60e
Axle/Gears: 3.73
Re: roll racing with an a4?
okay, turns out my problem was the fuel pump that caused it to feel like there was a delay when i nailed it and the trans was slipping. ill try dropping it to 2nd manually at about 40 and see how that goes with the new pump, it feels a lot peppier now.
Joined: Apr 2004
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From: Salt Lake City, Utah
Car: 1988 camaro "SS"/ 1991 305/T5
Engine: 383 LT1 in progress/LT1TBI 355 soon
Transmission: Probuilt 700R4 3600 stall/ T5
Axle/Gears: Moser axles, 3.42 Eaton Posi
Re: roll racing with an a4?
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From: Indianapolis, in
Car: 1987 Sports coupe/z28
Engine: 2.8/ swapping 5.3
Transmission: 700r4
Axle/Gears: Open 3.42
Joined: Apr 2004
Posts: 3,001
Likes: 62
From: Salt Lake City, Utah
Car: 1988 camaro "SS"/ 1991 305/T5
Engine: 383 LT1 in progress/LT1TBI 355 soon
Transmission: Probuilt 700R4 3600 stall/ T5
Axle/Gears: Moser axles, 3.42 Eaton Posi
Re: roll racing with an a4?
I start in second
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From: Indianapolis, in
Car: 1987 Sports coupe/z28
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Transmission: 700r4
Axle/Gears: Open 3.42
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