torque converter a bad idea?
03-03-2005, 04:33 PM
#1
torque converter a bad idea? went to a mechanic today about getting my SY3500 installed w/ a tranny cooler and he was like "damn thats a high stall!" he said that my car wouldnt move til the rpms got up to 3200 or so!! did i make a mistake in getting the tc?? 
this is my daily driver, i cant be having that. will the tc totally change the way my car drives????// 
this is my daily driver, i cant be having that. will the tc totally change the way my car drives????// 
03-03-2005, 05:53 PM
#4
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He's just not up to what's out there now a days. My vig3200 fills stock to me, Let of the brake & it creeps up. You'll be fine for alittle while til you what to up it bigger.
03-03-2005, 07:58 PM
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that is what i have heard also, so it makes me wonder if it is the right thing to do. please explain how it is a high stall but it feels stock. just wondering also.
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03-03-2005, 10:05 PM
#8
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I think the Yank SY3500 is pretty close to the ideal
converter for these cars in a street application. Too
bad they quit making it, really. All the other 3500+
ones out there have really high STRs which don't make
a lot of sense for a street tires, 3-series geared car.
The SY3500 also has few (if any) equals for efficiency.
Say hello to your powerband.
converter for these cars in a street application. Too
bad they quit making it, really. All the other 3500+
ones out there have really high STRs which don't make
a lot of sense for a street tires, 3-series geared car.
The SY3500 also has few (if any) equals for efficiency.
Say hello to your powerband.
03-03-2005, 10:16 PM
#9
I had a tranny guy who's a pretty respected builder give me a huge lecture about why I shouldn't install anything more than a 2400 stall ... search and read this forum and you'll learn everything you need to know. As you'll find out time and time again, convential mechanics are clueless when it comes to LS1's.
03-04-2005, 09:57 AM
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Originally Posted by jimmyblue
I think the Yank SY3500 is pretty close to the ideal
converter for these cars in a street application. Too
bad they quit making it, really. All the other 3500+
ones out there have really high STRs which don't make
a lot of sense for a street tires, 3-series geared car.
The SY3500 also has few (if any) equals for efficiency.
Say hello to your powerband.
converter for these cars in a street application. Too
bad they quit making it, really. All the other 3500+
ones out there have really high STRs which don't make
a lot of sense for a street tires, 3-series geared car.
The SY3500 also has few (if any) equals for efficiency.
Say hello to your powerband.
i.e. a converter with a 3800 stall and a 3.0 str will probably feel the same as a 3000 stall 2.0 str.....just guessing the #s, but I hope I got my point across
If you want to argue that a higher STR isn't good because the tires will spin, then yes....but isn't that what we all want? (more power) If you roll into it, instead of mashing the gas, you'll have no problems hooking, just need a little bit of practice
Therefore my advice would be go with a Yank SS4000, very tight converter, and it'll hit like a ****....when you want it to.....I love my SS3800 with 2.73 gear combo
03-06-2005, 01:05 AM
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Originally Posted by RevGTO
I had a tranny guy who's a pretty respected builder give me a huge lecture about why I shouldn't install anything more than a 2400 stall ... search and read this forum and you'll learn everything you need to know. As you'll find out time and time again, convential mechanics are clueless when it comes to LS1's.
03-06-2005, 02:27 AM
#14
Originally Posted by Jake the SSnake
All my friends including the one at the tranny shop thought it was way to big for a stock motor.They changed their mind after they rode in my car. LS1'S LOVE BIG STALL CONVERTERS
Remaining stock internal/bolt on only as well btw.
03-06-2005, 10:23 AM
#15
Originally Posted by 2002 Trans Am
Actually I disagree with you, the SY3500 is a fairly loose converter but high in efficiency I believe. Higher STR IMO is better for the street because it makes the converter tighter (better drivability).....(EDIT- unless you have 3.73 gears or something, where anything will feel tight)
i.e. a converter with a 3800 stall and a 3.0 str will probably feel the same as a 3000 stall 2.0 str.....just guessing the #s, but I hope I got my point across
If you want to argue that a higher STR isn't good because the tires will spin, then yes....but isn't that what we all want? (more power) If you roll into it, instead of mashing the gas, you'll have no problems hooking, just need a little bit of practice
Therefore my advice would be go with a Yank SS4000, very tight converter, and it'll hit like a ****....when you want it to.....I love my SS3800 with 2.73 gear combo
i.e. a converter with a 3800 stall and a 3.0 str will probably feel the same as a 3000 stall 2.0 str.....just guessing the #s, but I hope I got my point across
If you want to argue that a higher STR isn't good because the tires will spin, then yes....but isn't that what we all want? (more power) If you roll into it, instead of mashing the gas, you'll have no problems hooking, just need a little bit of practice
Therefore my advice would be go with a Yank SS4000, very tight converter, and it'll hit like a ****....when you want it to.....I love my SS3800 with 2.73 gear combo
I also drove a SY 3500 back to back with a ST 3500 (2.5 STR). The ST 3500 was barely tighter. Both had nearly identical shift extensions. I was amazed how easy it was to launch the SY 3500 car on Goodyear F1s on the street. I had nittos on my car so I never launched the ST 3500 on goodyears for a true comparison of street launches. If you are staying on street tires, the SY 3500 remains one of my favorite converters, especially for use with 3.23s or higher gears.
03-06-2005, 12:07 PM
#16
Originally Posted by jimmyblue
I think the Yank SY3500 is pretty close to the ideal
converter for these cars in a street application. Too
bad they quit making it, really. All the other 3500+
ones out there have really high STRs which don't make
a lot of sense for a street tires, 3-series geared car.
The SY3500 also has few (if any) equals for efficiency.
Say hello to your powerband.
converter for these cars in a street application. Too
bad they quit making it, really. All the other 3500+
ones out there have really high STRs which don't make
a lot of sense for a street tires, 3-series geared car.
The SY3500 also has few (if any) equals for efficiency.
Say hello to your powerband.
Yes the SY3500 is a great street converter but must have 3.42 gear or above and drives best with a 3.73 on the street NOW at the track the sy3500 with 2.73 gear will be a very unstoppable and run back to back times, thats what wins.
driving on the street the higher STR of the ss3600 will out drive and feel tigher with 2.73 or 3.23 gear and not build up as much heat in traffic.
We DO still make the SY3500 but the parts supply are hard to get as the parts that GM built for us got being used up fast as we have built over 1200 of them in 6 years
It is a soft hit converter and hooks on the street
That sy3500 will kick some *** when raced from a roll!
He will be very happy with it!
03-06-2005, 05:20 PM
#17
Launching!
A converter is one of the first thing you should install in a late model f-body. You will feel a difference and see it on your time slips at the track.
Traction is also nice after a TC install
What you are putting is will be fine for a daily driver.
Traction is also nice after a TC install
What you are putting is will be fine for a daily driver.
03-07-2005, 08:24 AM
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Originally Posted by Ragtop 99
I've had a bunch of different Yanks, from 2800 to 4200 in my car, driven the SY 3500 and driven the Vig models. I can tell you that STR helps a bit in looseness, assuming an equal stall speed, but stall speed is a far bigger measure of looseness. The next most important factor is shift extension. A 4000 stall with a long shift extension will feel much looser than a 4000 stall with a shift extension that is 500 rpm shorter.
I also drove a SY 3500 back to back with a ST 3500 (2.5 STR). The ST 3500 was barely tighter. Both had nearly identical shift extensions. I was amazed how easy it was to launch the SY 3500 car on Goodyear F1s on the street. I had nittos on my car so I never launched the ST 3500 on goodyears for a true comparison of street launches. If you are staying on street tires, the SY 3500 remains one of my favorite converters, especially for use with 3.23s or higher gears.
I also drove a SY 3500 back to back with a ST 3500 (2.5 STR). The ST 3500 was barely tighter. Both had nearly identical shift extensions. I was amazed how easy it was to launch the SY 3500 car on Goodyear F1s on the street. I had nittos on my car so I never launched the ST 3500 on goodyears for a true comparison of street launches. If you are staying on street tires, the SY 3500 remains one of my favorite converters, especially for use with 3.23s or higher gears.
