trilkb

iTrader: (4)

Hahaha, ah shoot.

Pt4000 was a click away and I couldn't do it.

Fti 3800 hard hit vs soft hit I need to get straight. I can't make sense of which is more like the pt4000. I thought the 3800 hard hit had a 2.35 str, the soft hit I have no idea. I'm getting confused because I'm reading the pt and hard hits are the best of the best NA converters. I figured ftis 3800 hard hit would be a bit less loose than the pt4000 with my 3.73s. I'm going to guess the 3800 hard hit is better at the track than the ss3600?

skyhighsami

iTrader: (8)

I will say this, I have a Yank SS3600 in my Trailblazer and it is too tight. I actually talked to Dalton today' and recommended the 4000 Hard Hit. With my SS3600 ai can't 60' better than a 1.8 in my Trailblazer and I have more than enough power and suspension. So I am building a LQ9 with a cam, CNC 243 heads, and a Fast LSXRT that's going in my GMC Yukon. That SS3600 is tight enough that I think it will be perfect in there. I seriously doubt you'll be satisfied with the times from the SS3600

trilkb

iTrader: (4)

Im thinking 3800 hard hit now. just because the pt4000 seems high and the ss3600 seems low, and the hard hit isnt offered under 3800rpm lol.

98CayenneT/A

I don't have experience with FTI but I doubt you will be disappointed with any of the 3 converters you are looking at. Absolute worst case scenario, if need be, you can pull it back out and have it restalled/tweaked.
The first time you go wot you're going to be floored at the difference. Especially with you having a cam.
Along with better 60'/ off the line, the shift extensions will also put a massive smile on your face.

It's hard giving converter recommendations because everyone's driveability and sensitivity to looseness is much different. With you having 3.73's all 3 of those converters will drive very nice.

trilkb

iTrader: (4)

Yea, the soft vs hard hit is just confusing. Who wouldnt want to buy a "hard hit" over a "soft hit"?

I just need to figure out if soft hit is more like yank PT series or hard hit is more like PT series.

98CayenneT/A

If I had to guess I would say the soft hit has a higher str.

FTICONVERTERS

iTrader: (3)

If you sent it through the website I was recently fighting some server settings that were blocking those contact emails(should be fixed now) if not PM the email and i'll look it up.

The 0086 is the popular the 3600 i was referring to. The SRLT or SRLS is what determines which input shaft the converter is for. The 8082 you mentioned is the 4000 hard hit that is going to have looser street manners.

MaroonMonsterLS1

hard hit=PT
soft hit=SS

correct dalton??
@FTICONVERTERS

Hard hit has lower STR than soft hit
PT has lower STR than SS


Hard hit not good for power adder
soft hit ok for power adder

PT not good for power adder
SS not good for power adder

correct me if I'm wrong here boys! haha

trilkb

iTrader: (4)

Thats from PM'ing, and it seems like its backwards from what everyone thinks.

Hard hit is SS, and Soft hit is PT.
Yanks Power adder series 3800 is around 2.2-2.3 Im told.
The PT4000 is 2.2, PT4400 is 2.5 (according to their chart)

FTICONVERTERS

iTrader: (3)

See above in bold.

keep in mind as you know that all this bench racing is relative to the combo it belongs to as well. What works for customer A could be miles off for customer B unless all variables are identical.

FirstYrLS1Z

iTrader: (4)

^^^ Post # 29, that sort of agrees with what I put in post #2. The SS series has a slightly lower STR than the PT. OEM convertors are considered hard hit but unfortunately they're only 1800. The SSs' grab at rated stall immediately and remain tight thru-out. The PT series is softer because it has some slight slippage when hitting rated stall.
SSs' have high efficiency, PTs' less efficiency but not by a lot.

trilkb

iTrader: (4)

^^^ I dont think thats right lol, ss4400 has a higher str than pt4400, just like the hard hit 3800 has a higher str than the soft hit/reg 3800

I think the soft hit 3800 is closer to a PT3800 and I think while soft hit sounds boring, I need that one lol.

Boring sounding stall to go with my boring sounding "hot cam" lol. Pro thruster sounds cooler than soft hit...gotta say it lol.


Its like FTI builds pro thrusters as their regular converters if my thinking is correct.

MaroonMonsterLS1

All of this brand mix-up has me confused.

Higher STR is *generally* better suited to a naturally aspirated setup. It will be more loose and flash to the stall rating then the torque multiplication will "hit hard" and you'll be in the powerband.

Lower STR is *generally* better suited to power adder setups and is more "street friendly" because it won't feel so loose down low. The lower STR means power adders won't "blow through" the converter as easily

I have a lot of quotes and asterisks in there because those are rough generalizations.

PT=lower STR
SS=higher STR

Hard hit = Higher STR
soft hit= Lower STR

I hope that's more clear...more like mud now rather than like pitch.
Thanks for clarifying Dalton!

StealthFormula

iTrader: (35)

I've had both the SS3600 and the PT4000. Both drove very differently and have their pros and cons. The SS3600 was tighter around town with my 3.73s and broke traction with ease on street tires at all times. Car felt really torquey with it, was nice and I often miss it. PT4000 is loose as hell so sometimes annoying with my car being so loud and it feels much more sloppy than my SS3600 around town. However, the PT4000 pulls noticeably harder on the highway, has a much nicer shift extension. In a perfect world I would have two cars one with each. I have been saying for years I wants to go back to my SS3600 but there's times I love the PT4000 so I've yet to do it. Depends what you're after. For a daily driver the SS series or equivalent from FTI would be my recommendation. For a weekend warrior either will do but up to your preference on loose vs. tight. I suggest riding in someone's car before you take the plunge if possible. I recently took my LT1 to the track, just a 359rwhp car. Cut a 1.56 60' on 275/40R17 Nittos on my stock wheels so the PT4000 will still launch hard. I actually like that it's more controllable on the street when punching it at slower speeds versus the tight SS3600 which just punished the tires. I really had/have a love/hate relationship with both converters depending on the day because neither is perfect 100% of the time. There's give and take. A PT3600 or PT3800 would be an intruiging choice if they'd make one. I once asked Yank for a hybrid between both my SS3600 and my PT4000 converters and they suggested their PAS3800. Would like to learn more about that one but doesn't seem like many people run it.

Edit: In conclusion, SS3600 is tighter and more enjoyable during normal driving and mild to moderate hot ******* around but leaves a little to be desired at WOT. PT4000 is a top end hero but is a loose sob around town which can be annoying with a loud car and annoying if you like that instant torque feel. SS3600 going to be better choice for most people but not all. PT4000 is a little more of an acquired taste, a little more of a gamble if you will. If you have a DD or your tolerance levels aren't high the SS3600 is more ideal. If you have a higher tolerance level and/or you want max NA performance at the track the PT4000 is more ideal. All my opinion of course. Both converters are awesome just in different ways.

trilkb

iTrader: (4)

I agree with everything you said....but...

To add more confusion...
The ss converters are listed as being safe with power adder and the pt are listed as best n/a converter according to yank.

As you said the pt has a lower str than the ss, yet the ss can be sprayed, meaning high vs low isn't completely accurate for n/a setups lol.

I'm ordering a 3800 regular converter from fti and calling it a day. I do believe fti got it's good name because it's basic stall is more like yanks pt series. Obviously that will get you results.

The pt4000 seems like too much for me, the ss3600 seems too tight. The ss4000 I assume has the same top end efficiency problems as a ss3600. I think the fti 3800 is exactly what i need. Looser than the ss3600 yet not a pt4000 loose, but also has the good top end efficiency the pt series has vs the ss.

This is all just educated guesses and my understanding of yanks str chart vs what people have reported in posts I've read. I hear the ss3600 is 95% efficient up top, stock converters are more efficient and have lower str. I'm betting the pt series is more efficient than 95%. But none of this is an Apple's to Apple's comparison.

It's a weird thing to try and grasp, and I have to use yank as examples, but I'll be buying the fti because I can get a converter and trans cooler for the price of the yank.

trilkb

iTrader: (4)

SRLS6391 was ordered.

I feel pretty good about it lol. Watch me be completely wrong in my understanding of these converters. I'm not at a tight 3600, not at a loosey goosey 4000 either, hopefully my porridge is just right.

FirstYrLS1Z

iTrader: (4)

You will like it ! FTI,Yank,CircleD in 3600,3800, 4000, 4400, they're all good convertors. And they see their use with gears of 2.73, 3.23, 3.73.

vorteciroc

Be careful that you guys do NOT overdue it with one of the "Hard-Hit" Torque converters.

A lot of guys like the loose, then kick in the pants feeling that is obtained even with a low powered engine...

But be warned... these loose/ less efficient torque converters will cost you horse power up-top.

Let the guys at FTI guide you in the right direction...
But the high RPM HP pull with a more efficient converter to me blows away the kick-in just above stall speed with a loose converter!

trilkb

iTrader: (4)

That makes me feel better. Cant wait to get this thing in, hopefully over labor day weekend or before. Got 5 days off. Probably just start on it on a Friday night and be done by Saturday afternoon. I do need to find a trans cooler, thinking b&m supercooler but not sure if theres something else out there.

98CayenneT/A

Good deal, post up your first impressions once you get some time with it.

Here is my parts list for my setup if it helps.....