patrick:

Have you seen the efficency numbers on the SS line?

600 rpm less shift extension is a big hit for just a 200 rpm drop in stall. I'm sure it improves drivability, but highway racing pull in the midrange (3500 - 5000 rpm output shaft speed) is probably reduced too. Something to think about for deciding which converter is best for a street car. <img border="0" title="" alt="[Wink]" src="gr_images/icons/wink.gif" />

 

The drivability of a VIG. with the efficiency of a YANK.. that would be a sweet converter <img border="0" title="" alt="[Smile]" src="gr_stretch.gif" />

 

</font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif">Originally posted by Patrick G:
<strong>The SS3800 is a 245mm converter, not the 258mm size as used in the Pro Yanks. The 25 blade stator is better than the 18 blade models for certain applications:

Higher STR
Harder hit to the tires
Less shift extension (better for power adders)
Better throttle tip-in (driveability)</strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">Are any specs available yet? Higher STR means less efficiency right? I'm guessing STR is higher then Super and Pro Thruster. So higher then 2.7? And that means less efficency then Super and Pro Thrusters?

Less shift extension is good for smaller cams that peak lower. That would also be great for V6s that don't have much of a top end. With the resources available to Yank, it would be great to have them put all their top converters in the same car and track test them one by one. With so many models available it's hard to pick one.

Keep the info comming and correct me if I'm wrong in my assumptions.

 

Is there a new converter that would be than a PT4400 for NA use?

 

I meant to say be better than a PT4400 for NA use? <img border="0" title="" alt="[Smile]" src="gr_stretch.gif" />

 

DOM:

Higher STR does not mean lower efficency. The TT2800 3.0 STR was Yank's most efficent converter. However, if you keep the pump & turbine design constant and change the stator you might loose efficency or if you increase the STR by raising stall (same stator) then efficency will suffer.

Less shift extension is not necessarily better for small cam. You want to stay up near peak HP. On a near stock LS1 that is going to be in high 5000s so a low to mid 5000s extension is perfect. The longer shift extension also provides a longer period of torque multiplication which is why the YTP series is so good from a roll.

 

Is the efficiency and STR lower or higher then Super and Pro Thrusters?

 

STR of the Super Stock converters is higher than all the Yank street/strip/race converters. Higher than the Super Thrusters. Higher than the Pro Thrusters.

Efficiency is very good for a converter of such high STR. Better than the Super Thrusters and Pro Thrusters in the 2500-4500 range and within 1 % of them from 5000 rpms and up. A credit to the advanced engineering of General Motors and their new 25 blade stator.

 

How about small cam (comp 216/220), and a 100 shot down the road in an '02 SS with 3.23's. SS3600 or SS3800? Thanks

 

Mcguire and Ireland,

The SS3800 should fit your needs very very well. Stepping up to a Pro Thruster 4000 is a very big step. You will gain about 600 rpms in shift extension and lose a great deal of driveability. The SS converters let you have your cake and eat it too.

patrick

 

Thanks Patrick G,

Sounds like a good choice, and with the GP that Tbyrne is putting on, it makes it even better!

 

TByrne has some weird listing of the converters.

Super Street 3600-3800 LS1 (245mm) - $755

Is that supposed to be Super Stock not Super Street? What is Super Street?

And there is the Super Stock 4000 LS1 (245mm) - $815.

Are these supposed to be the same converter just different stall?

 

I'm about to order a converter, my SS will be street driven everyday. But I'm more hardcore than most. Whats your suggestions? SS3500-3800, SS4000, or PT4400? This is a full bolt on car, with some weight reduction. I'd like 11's.

<small>[ October 29, 2002, 12:59 PM: Message edited by: McGuire Performance ]</small>

 

Patrick,

I know this is an LS1 board, but what TC (whether it's the SS series or not) would you recommend for a mainly street-driven LT1 FBody w/ 3.23s, cold air induction, UD pulley, and 3" exhaust (through stock manifolds)? I don't see much on the site for LT1 cars.

 

Gearhead,

Some of the older LT1 cars had pcm problems with too much stall. If your car (pcm wise) can take it, then I would recommend a Super Stock 3600.

Link here: www.converter.cc/super_stock.htm

 

How does the SS3600 compair to the ST3500?? so from what i understand, the SS3600 a tighter converter that hits harder, and is more efficient?

thanks a lot
Drew

 

Super Street 3600-3800 LS1 (245mm)

So if I was going to go ahead and get the 3800, would I be wise to get the SS4000? It really wouldn't be that much looser than the 3800, right? And I'd get more performance out of it?

 

Drew,

Compared to the ST3500, the SS3600 has a higher stall torque ratio, giving it a harder hit off the line, better throttle tip-in drivability, and less shift extension. It also has a much larger, more heavy duty clutch for better compliance with finicky LS1 pcms. It is also about 2 lbs lighter.

On the minus side, the Super Stock 3600 is a tad less efficient at 5000+ rpms and will pull the shifts down about 100 rpms more than the ST 3500. For running the big numbers n/a, more shift extension is a good thing. For cars with smaller cams, less gear, or running power adders like nitrous, less shift extension is actually a good thing. The SS 3800 has even better street manners than the lower stall ST 3500 I used to own. A strong testiment to its technology.

 

Patrick-
thanks! thats good info, and its good for my stock car. also whats shift extension? <img border="0" title="" alt="[Embarrassed]" src="gr_emb.gif" />

Drew

 

From what I have read the SS 3600 would be ok for a 02 Ls1 with 273 gears and basically stock?

I wanted to go with the vig 2800 but now this new converter looks like the better choice?

I will be using this car as my daily driver but I want to wake it up but still be ok to drive around town. I don't want it to be to loose and also if I go to the dealer it puts up a big flag that I have a converter. With the 3600 stall my pcm won't give me a fit?