Onebadwedge

iTrader: (1)

I have done SEARCH function here, but I need
more specific comparison of the following.


Help me decide for a STREET driven car, 99%.
I go to the track once or twice a year.
I'm in OHIO, April to November, no snow.

I will have MODS in sig and Stage II heads
and 224/228 .580 .580 114 LSA cam.
I have Pirelli Pzero tires, they pick up every
stone on the road and throw them into
my rear wheel wells all day long, so I think they are sticky
for street tires.

I can't decide between the Yank3000 and Yank Super Thruster 3500.
From Yanks site, it recommends the Yank Super Thruster 4000 with my MODS.
But I think they are recommneding the TC for the best RACING
to get the most out of the combinations listed.
I want more of a street driven.

They recommend a Yank 3000 for a STOCK car by the way.





The only difference between them is what I have found
on YANKS site and a couple of posts on here. Here's
what I found DIFFERENT only.

3000 3500
----- -----
stall 3000 3500
str 2.0 1.6
price 750 900

From off the line the graphs indicate they are the same
from 1000 - 1700 RPM.
From 1700-5000RPM the 3500 is 5% stronger the whole way.
From 5000-on up, they are about the same.

This is where I looked: http://www.converter.cc/super_yank_dyno_overlay.htm




I understand that I will be "slipping" more with a higher stall
and street tires so I would be driving around 2000 RPM most
of the time, normal street driving.


They look almost identical to me, from some calculations
the 3500 is going to give me 12 more ft/lbs of torque
from 1000-3000 RPM and 10 more ft/lbs of torque from
3000-6000RPM.
Am I going to feel 12ish more ft/lbs?


I want something that is streetable and my tires will be
able to hold under normal driving no problem. But
I will accept the "slipping" when starting off. I have
read that the Yank 3000 needs to be slipped to about
2000RPM for normal driving by others that have it.


Does that mean the 3500 will need 2500RPM for normal driving?

Has anyone compared these two TC's before?

Would my street tires be able to hold the extra 12 ft/lbs of the 3500
throughout the RPM range?


thanks a lot for your replies.

boomcase

A 4 with 323s and your mods , Id go TCI SSF 3500 stall, great street converter. Great feeling in your wallet also.

jimmyblue

iTrader: (11)

That (ST3500) is an even lower STR than stock. So I would
expect it to be pretty mellow / easy to drive at light throttle
but will kind of wimp out the launch. Maybe a good thing on
street tires. The TCI 3500/2.5 will be a tire roaster, my
TCI 3000/2.2 is hard enough to hook up under any kind of
enthusiastic driving. I guess the ST3500 is probably high
efficiency with that low STR but it will not beef up your
rear wheel torque the way something in the 2.0 range
would. If you're dead set on Yank check out some of the
others like the Super Yank (something like a 3000/2.0 or
3500/2.0 I believe it is? Their SS line is supposed to be
pretty efficient and good driving too ($$$), something
like the SS3600 might fit your bill. I think the ST3500 is
kind of off in the weeds, relative to what most people
pick.

LS1INSIDE

I have the ST3500 and it's great. But I thought my ST3500 was a 2.5 str at least that's what i bought

White Fire'99

iTrader: (15)

st3500 is a 2.4str

i think you're thinking of the sy3500

Colonel

The ST line was replaced by the SS line for the LS1. The ST is now LT1 only. (Unless something has changed again and Yank's website wasn't updated.)

I wouldn't waste my time with a 3000 stall...especially for a heads/cam car. You'll end up changing the converter to something higher sooner or later...probably sooner.

If you're definitely NOT going to ever run drag radials then you might consider the SY3500. If you might run DRs one day then you should go with the SS3800 IMO.

The TCI 3500 is very hard to beat at the track and impossible to beat in the bang for your buck department.

Onebadwedge

iTrader: (1)

thanks for all the information.

I read up on the SY3500 that "Colnel" suggested.
I think that was the one that I was comparing from the beginning,
but I worded my post wrong. I accidently put
in the "super yank thrustrer 3500".

I wanted to compare the
Yank 3000 vs. SY3500


Sorry for the confusion.

I don't see myself running drag radials because I run
the car all summer lone, RAIN too. So I think the
SOFT launch of the SY3500 will be good for my STREET
tires.

Ragtop 99

iTrader: (7)

The SY 3500 is definitely what you want. You'll still send the tires up in smoke if you just mash it, but it is an easy converter to learn to launch hard.

2002 Trans Am

The real ST3500 for the LS1 was known to take a few trannies down. I believe it also came with a 3.0 stall. Hits like a ****!!!

The SY3500 your looking at, which I probably recommend since you don't want to use drag radials will probably feel looser than most converters because of its STR (very low)

Ragtop 99

iTrader: (7)

The ST 3500 did have its issues but they were clutch related. The lock-up clutch would become glazed and slip under heavy load or light line pressure after 10k miles. Annoying as hell, but not a tranny killer. STR was right around 2.5. I had the prototype unit in my car.

The SY3500 is only slightly looser than a ST3500 and is very easy to launch. Stall speed matters more than STR.

The TT series came with a 3.0 STR. I had the first TT2800 3.0 in my car. It was really tight but impossible to launch on the street with 3.23s when I had RSAs still on the car. A great street converter...for a 2.73 gear car.