Why do they make auto transmissions do this?
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Joined: Apr 2004
Posts: 1,881
Re: Why do they make auto transmissions do this?
An aftermarket converter should have a higher stall speed. That means the rpms should have to go higher to produce the same roll as a stock converter. Depending on the aftermarket converter, your car may actually roll backwards on a hill without gas.
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Joined: Aug 2001
Posts: 826
From: No where
Re: Why do they make auto transmissions do this?
Originally Posted by neurotictim
Okay, so it is normal to have to apply light brake pressure...
Except my Z28 will roll at 25 or 30, once I get it there, without having to touch the brakes... And I have to virtually stand on the brake to keep it from moving at a light...
I bought the car with a bunch of mods done, is it possible that an aftermarket torque converter is causing this?
I know my previous car, a 96 RS, didn't do that.
All I know for sure that's been done to the car is the supercharger, headers, exhaust, and the rear end has been built...
Except my Z28 will roll at 25 or 30, once I get it there, without having to touch the brakes... And I have to virtually stand on the brake to keep it from moving at a light...
I bought the car with a bunch of mods done, is it possible that an aftermarket torque converter is causing this?
I know my previous car, a 96 RS, didn't do that.All I know for sure that's been done to the car is the supercharger, headers, exhaust, and the rear end has been built...
Where is your idle set at? A high idle speed will allow the car to push harder against the torque converter.
Is you aftermarkert converter a tight or loose one?
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Joined: Feb 2005
Posts: 19
Re: Why do they make auto transmissions do this?
Like I said, I bought the car with a bunch of mods already done, but the only ones I know for sure about are the obvious ones - basically meaning I don't know if it has an aftermarket stall converter or not...
I need to get the car tuned - it does idle high, so maybe changing that will fix it... I thought it was normal for a forced induction car to idle above 1K.
We'll see.
I need to get the car tuned - it does idle high, so maybe changing that will fix it... I thought it was normal for a forced induction car to idle above 1K.
We'll see.
Registered User
Joined: Apr 2004
Posts: 1,881
Re: Why do they make auto transmissions do this?
Originally Posted by neurotictim
Like I said, I bought the car with a bunch of mods already done, but the only ones I know for sure about are the obvious ones - basically meaning I don't know if it has an aftermarket stall converter or not...
I need to get the car tuned - it does idle high, so maybe changing that will fix it... I thought it was normal for a forced induction car to idle above 1K.
We'll see.
I need to get the car tuned - it does idle high, so maybe changing that will fix it... I thought it was normal for a forced induction car to idle above 1K.
We'll see.
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Joined: Dec 2001
Posts: 857
From: Murfreesboro, TN
Re: Why do they make auto transmissions do this?
My brother's '85 Chevy truck used to idle extremely fast (very screwed up Quadrajet). He could literally go 50 mph without touching the gas. 
One time we were at a red light and his truck started doing a brake stand on it's own. 
One time we were at a red light and his truck started doing a brake stand on it's own.
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Joined: Feb 2005
Posts: 19
Re: Why do they make auto transmissions do this?
How's that do with gas mileage, and doesn't that make you launch pretty hard all the time?
I will eventually get an aftermarket converter, but I don't want to feel like I'm at the track every time I leave a light...
I will eventually get an aftermarket converter, but I don't want to feel like I'm at the track every time I leave a light...
Registered User
Joined: Apr 2004
Posts: 1,881
Re: Why do they make auto transmissions do this?
Originally Posted by neurotictim
How's that do with gas mileage, and doesn't that make you launch pretty hard all the time?
I will eventually get an aftermarket converter, but I don't want to feel like I'm at the track every time I leave a light...
I will eventually get an aftermarket converter, but I don't want to feel like I'm at the track every time I leave a light...
No, you launch like a civic if you dont get the rpms too high. If you floor it you will launch VERY hard.
Registered User
Joined: Dec 2001
Posts: 857
From: Murfreesboro, TN
Re: Why do they make auto transmissions do this?
Originally Posted by neurotictim
How's that do with gas mileage, and doesn't that make you launch pretty hard all the time?
I will eventually get an aftermarket converter, but I don't want to feel like I'm at the track every time I leave a light...
I will eventually get an aftermarket converter, but I don't want to feel like I'm at the track every time I leave a light...
I had a 2500 before this one and it just felt like the stock converter.
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