98 Z28

I've been going back and forth about this for a week, I plan on ordering a TC but am not sure if I should go with a SS or PT series. The car is strictly a street car and I will be adding a Speed Inc SI5v2 cam, I already have 3.73's in the rear end. I'm just not sure if the PT will be too loose for the streets only? Thanks

mjs1012

iTrader: (36)

basically, the ss is a good street converter that'll perform well at the tack and the pt is a good track converter. IMO the ss will be plenty for you since you said its a street car. I have an ss3600 in my car and for how i drive, i think its perfect.

01ssreda4

iTrader: (96)

SS series for you IMO.

obie86

I was going through the same situation recently. I ended up going with a PT4200. Reason being the car is not a DD and if I'm going to pay that much for the converter I want it to hit hard as hell. Performance was my final decision.

Jay-P

iTrader: (16)

I always thought the SS had a higher str which would make it a better converter for a prepped track, while the pt had a lower str which didnt hit as hard?

98 Z28

It seems almost everyone recommends the SS for street use and the PT for track use. Thanks for input guys I guess I will order the SS I haven't really read much stating the PT has any real benefits for street use other than having a higher shift extension.

JakeFusion

iTrader: (7)

PT is more efficient due to lower STR. Frum roll it'd walk an SS series. That's street.

Jay-P

iTrader: (16)

Thats kind of what i was getting at, if your not going to the track where a prepped surface will make the high str of the ss series shine i would be more inclined to get a pt.

JakeFusion

iTrader: (7)

That's why I'm doing the E series from Circle D... same basic premise. Hits softer off the line and is more efficient when moving. Plus, the added shift extension makes up for a lot too, especially when I am expecting just an 800 RPM drop in my setup...

But, the downside is, it's looser. Needs more RPMs to get moving. Once locked up tho, doesn't much matter. Will flash up and unleash hell.

98 Z28

Now I'm back to the drawing boards those are some good points about the pt. Any idea what kind of rpms i would be turning with the pt to get moving vs the ss? I have 315 NT05R's on the back so traction is usually not too big of an issue but they do spin sometimes.

98 Z28

If I go with a PT should it be the PT4400?

JakeFusion

iTrader: (7)

No, I'd do the PT4000.

I would say you're probably going to see 2500rpm to get moving with traffic or therabouts. 3.73 is a good match for the 4000.

SS4000 would probably be a couple of hundred rpms less.

On a side note, how are the NT05Rs? I've really been thinking about those. I love the NT05s I have now, but they are easy to blow away. I just worry about torrential rains and high speed handling/cornering. Kind of torn between those and going with something like the R888s.

98 Z28

I love the NT05R's but I honestly don't have much to compare them to. The only other real performance tire i've had was gsd3's on stock wheels. brand new though they were pretty ridiculous they wouldn't spin whatsoever just take off but every once in a while now I get them to spin from a stop and I had them spin on me on a freeway entrance flooring it but that may have just been the road itself. I do like the fact though they are only like 200 each.

These converters are going to drive me nuts. I mean I hit 3000-4000 rpms or so right now just taking off like a jackass, when I get whichever converter is it basically just going to slam me into the seat doing that?

Kingc8r

iTrader: (21)

Same route I'm going. No one local would buy my SS3600. Didn't feel like getting it cut and cleaned to the SS4000 or PT4000 as I haven't been that impressed with them.

So Chris is taking care of me.

I can't wait to get it it.

On paper the PT4000 is supposed to be better. From a roll it probably is slightly. But it's looseness is what would keep me away from it if I went that route and I would've done a SS4000 because it would out 60ft it.

JakeFusion

iTrader: (7)

PT4000 out 60s the SS if you look at most of the fastest times. Just overwhelming the tires at the start won't make you faster. And even if you out 60 it, it won't be much. The PT could easily reign it in on the big end.

Now, the SS would be better for 1/8 I think. The efficiency is less of a concern there. And it still drives better.

Kingc8r

iTrader: (21)

I think that list is bias since it's cam only so it makes more sense there are more PT4000 times with good 60fts.

PT's are pretty loose on the street, I'd rather have a tighter SS unless I was running a decent gear to take advantage of the PT4000

01ssreda4

iTrader: (96)

Not to diss the internet mechanics we have here, but have you spoken to Dave @ Yank about your combo? I pulled my trans (unrelated) and was going to swap over to a PT series converter and he talked me out of it. Meaning he lost a sale bc he felt my car had the right converter in it already (SS4k). Food for thought gentlemen.

Kingc8r

iTrader: (21)

Yea I like the SS better as well. But decided to try something different.

roninsonic

iTrader: (3)

I LOVE my SS...

Be prepared for parking lot rent-a-cops to give you **** if you have a loud exhaust, though... Stop-and-go sounds like you're flooring it.

98 Z28

I am going to call yank to see what they say as well. And yes my borla is decently loud I may change it or put a e cutout in it.