black00ssFL

iTrader: (24)

Well went to the track wednesday, I did a little bit better than before in similar weather, but not what I was expecting. Anyways, I feel this midwest 3400 stall is holding me back. After some reading I'm pretty dead set on the PT series converter from Yank, now the problem is which one? No, no nitrous is in my immediate future. It will be, but a whole other setup will be in by then. So what do ya'll think? PT4000 or PT4400?

mods: ms4 cam, stock heads, ls6 intake, p&p tb, longtubes, dual exhaust, 3.73's, and lid.

Jim'sZ28

iTrader: (21)

PT4400 for a n/a setup got me 1.48 60ft.

JEB99TA

iTrader: (32)

Numbers in sig ... my best run with the previous SS3600 was 11.875. My ONLY run with the new PT4000 produced the times in my sig. And I only stalled it to 2000 rpm and mash easy into the pedal. Next time out I am expecting consistent 1.x 60' times and a much better ET when I stomp it and let the converter flash to it's full potential.

Major difference between the Yank SS and the ProThruster series. The only real noticeable difference in driveability to me is no more low end to 2nd gear, which was killing me against M6 cars ... now, the A4 rocks and no more 'dead spot' between 30-40.

Either stall size you'll love in the PT series converter.

speed_demon24

iTrader: (6)

4400+ with 4.11's for a cam that size.

black00ssFL

iTrader: (24)

How she feel on a roll compared to the SS? I think my main problem is shift extensions. I'm dropping outta the powerband between shifts too far. More noticeablyon the 2-3 shift than the 1-2. I just figured I'd trap more than 112mph Wednesday with the 3.73's and better tune. Although I was trapping 111mph in similar weather before gears and tune.

JEB99TA

iTrader: (32)

I'm trapping a little better, but, on a really easy launch. I haven't smashed the pedal violently ... yet. I think my trap times will go up to about 118-119 ... cutting agood 60' time, I should be running 11.5's without much problem. Of course, we'd always welcome better numbers, right?

If you're looking to go faster and for better shift extensions, then, you've got the right converter in mind and prob should go with a 4400. Since I went with the PT4000, the car just rows right through the gears. Before (with the SS3600), the care would jerk when it shifted on 1-2 shifts. The slight loss of momentum caused a need to re-gain the momentum to keep the car moving.

Now, the shift extensions are there and the car just feels like a different f**cking animal. Go PT4400 and I think you'll be glad you did ... it's not gonna' feel a whole lot different from the PT4000 ... just better IMHO.

gator's 99TA

iTrader: (2)

run the proper converter for your powerband. you are going to run a MS4, you need a 4400-4800 converter. a 4000 is on the tight side and will not perform optimally with that big of a converter. PT4400 is the best suited converter for an ls1 with a big cam.

black00ssFL

iTrader: (24)

That's good to hear. That's how my car is on the 1-2 shift. it just snaps and goes. The 2-3 shift is just as "hard" (as in the shift itself isn't getting soft), but it just doesn't seem to pick up the rpms like in 2nd until I'm already past the traps. That's why I figured 3.73's would help a little. Seems like the 4400 will be for me.

black00ssFL

iTrader: (24)

Totally agree. Original converter went on with bolt-on's and worked great. Went from 13.1-2's to 12.6-7's. I figured it was enough to get by with the MS4, but it seems it's hurting me a lot more than I thought. I've ran a best of 12.0@114mph BEFORE the better tune, 3.73's, DR's, and subframes in about -400 DA. The worst I've ran with the cam has been 12.4-5's in really warm weather in the daytime. I've gained about a tenth and 1mph since the new mods....but I haven't been able to launch hard due to air in my abs module that I haven't got rid of. I've got a soft pedal and the front brakes just won't hold beyond 1400 when I footbrake (footbraked it to 2200 before I added the line lock and got air in the abs) so I couldn't muster better then 1.84 60' with the DR's. I've got an ABS delete kit sitting on my desk here waiting to solve that issue though!

slimcracka

iTrader: (7)

i bought a pt4400 from someone on here and im thinking of doin something different.

rookie501

iTrader: (2)

i am also in the same boat as you. i think i am going with the pt4400. i am kinda stuck between 3.73's or 4.11's

rookie501

iTrader: (2)

what did you end up going w\

black00ssFL

iTrader: (24)

6-speed, lol. Sold the SS and got another car.

derek91RS

4400 n/a