2002 Trans Am

Well it is down to th SY3500 or the Vig2800, though according to the Yank web site, these seem very close to each other, but the yank has more push at the end. So I think i'll go with the SY3500.

Now my real question is, I have 2.73 gears, should I change to 3.42 gears or even 3.73's? Or am I fine at 2.73, it seems like I read a lot of people saying the SY3500 is better with those gears. What should I do?

Next question, what gains should I expect to get on my 60's and my 1/4's, I know this is a mild converter, but I should see something?

Next question is what should I expect to break and approxmately how long before it breaks?

And any other info you may find I need to know, like should Ibuy a sift kit, or a cooler or whatever else goes along with buying a TC

Thanks in advance

<small>[ November 04, 2002, 11:18 AM: Message edited by: 2002 Trans Am ]</small>

boomcase

The sy3500 is a good converter and so is the vig 2800.being very close to the same you should just do the converter for now i think you will be very happy with anyone.You should check out midwest converters ,alot of good things said about them and only about450.00 cant beat that.I run a so called cheap converter in my car with 273s. check out my sig.

boomcase

Wow how the **** did that happen SORRY dude. I also gained 5 tenths with my converter and i added a tranny cooler. short time could very maybe mid 1.7 to 1.9 depends on traction.Break in ( what breakin) i just installed and took a test run havent had a problem yet .Good luck.

v6undercover

how do i find info about these midwest verters?

Ragtop 99

iTrader: (7)

Its going to be a loose combo with a SY, but don't change gears right away.

It will be a good combo with street tires or nittos. Expect .6 or more off your 1/4 mile once you master the launch. You should feel much faster on the street too.

Boomcase: when that happens just edit the duplicate post and choose delete. I took care of it for you. <img border="0" title="" alt="[Wink]" src="gr_images/icons/wink.gif" />

Black LS1 T/A

SY3500 all the WAY!

I shaved off three tenths in the 8th and over a half second in the quarter with the SY3500 and some Nittos. <img border="0" title="" alt="[Big Grin]" src="gr_grin.gif" />

2002 Trans Am

midwest is very interesting to me, I am very skeptical to something costing that much less.

Does anyone know if midwest makes a converter very similar to the SY3500, I like all its features, moderate take off, and good power through the rpm band.

I am big on quality too, I don't want to get something and then have it break.....So of midwest makes something that gives very similar performance #'s and very good quality, i'll be all over that like white on rice

Gary98Z

iTrader: (9)

Do you go to the track much? If so, the Vig may be the better choice due to the higher STR. You'll be able to cut better 60's with it. The SY3500 will most likely need 3.73's to cut good 60's. The weak STR of the SY3500 isn't good for the track, but on the street, it sure works well. <img border="0" title="" alt="[Smile]" src="gr_stretch.gif" />

2002 Trans Am

A lot more street than track, I ruled out the vig(though it looks like a great converter) because it has a stronger launch (which is what I am trying to keep down) I still want to be able to launch on the street without lighting my tires up. Also the SY3500 pulls more through the rpm band than the vig2800 especially at 4500-4800.

Actually looking more at th vig 2800, maybe it is worth saving te extra $100+

BTW all my info comes from the yank dyno testing, so if there info is not factual, then I am wong about everything

<small>[ November 05, 2002, 08:06 AM: Message edited by: 2002 Trans Am ]</small>

2002 Trans Am

Gary98Z you only gained 3 lbs of TQ with your converter??? And 18RWHP??? The HP#'s seem good, but why are the TQ #'s so low???

What gains did you see at the track?
My main track goal is to get into the 12.5-12.75 range, then i'll be happy, I think that will be easy to do with some tires, headers, converter, and all the little bolt ons including some suspension.

Black LS1 T/A

Stock, no headers and no supercharger, the SY3500 Dyno numbers were 297 RWHP / 345 RWTQ. <img border="0" title="" alt="[Eek!]" src="gr_eek2.gif" />

That was my first dyno, but I suspect my RWHP and torque were around 300 to 305 for both.

From the gains the converter gave me, I'd trade a couple RWHP any day. That torque does a lot to make the ET spectacular!

ToplessTexan

</font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif">Originally posted by 2002 Trans Am:
<strong>Gary98Z you only gained 3 lbs of TQ with your converter??? And 18RWHP??? The HP#'s seem good, but why are the TQ #'s so low???</strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">He noted those pulls were with it locked. Unlocked you'll see the full effect of torque multiplication, most noticeable below where your peaks are when locked.

Gary98Z

iTrader: (9)

</font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif">Originally posted by 2002 Trans Am:
<strong>Gary98Z you only gained 3 lbs of TQ with your converter??? And 18RWHP??? The HP#'s seem good, but why are the TQ #'s so low???

What gains did you see at the track?
My main track goal is to get into the 12.5-12.75 range, then i'll be happy, I think that will be easy to do with some tires, headers, converter, and all the little bolt ons including some suspension.</strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">Actually, the 18rwhp was after headers and convertor locked. But, from what I've heard, convertors actually make your car dyno lower, although they do go faster. My car always dyno'd WAY lower than others to begin with, so that didn't help. I'm not quite sure how to read the torque on my chart though. Since it started out with a spike of 350rwtq, I used the torque reading at the same rpm as what my highest hp number was at.

Unfortunately I can't help you with times though since I don't go to the track. I can say that I'm very happy with the SY3500, although there are times where I think about the TP4000 for awesome midrange and highway runs. <img border="0" title="" alt="[Cool]" src="gr_images/icons/cool.gif" />

<small>[ November 06, 2002, 09:43 PM: Message edited by: Gary98Z ]</small>

ToplessTexan

Was it a 350 lb ft "spike" of a "hump" that slowly decayed? If it flashed that high and smoothly fell of it was unlocked. That's what torque multiplication is all about. <img border="0" title="" alt="[Big Grin]" src="gr_grin.gif" /> I hacked together the plot below from some old dyno data, the purple curves are with the converter unlocked.
click me for image

<small>[ November 07, 2002, 08:11 PM: Message edited by: ToplessTexan ]</small>