Z28SteveA4

iTrader: (16)

So a year or so ago i put in a Yanks SS3600 converter in my car. I have gone to the track a number of times since i have installed the converter and put about 15,000 miles on it since then as well. My 60 foots are not impressing me with the size of the stall. my 60's have been consistent for the most part staying around 1.81 and 1.80. I feel that my 60's should easily be lower 1.7's. I have launched at all different rpms. I have flashed the converter mutliple times and the same 60. I have launched at 2500 rpms and still the same 60. My buddy has a yanks 3200 stall in his car and he is getting the same 60's as me. If i knew this i would have never have gotten the 3600 and i would have stayed with the 3200. Do you guys have any idea what i can do to help the 60 foot before i end up changing converters?? thanks for any help

Not that it makes a hug difference but i have tried two different drag radials mickey's and bf goodrich and the 60's stay the same.

Yank

iTrader: (181)

You might have another tuner look at your tune as the SS3600 is a proven converter.
also check
There are many items that could cause your converter not to do it's job the most common is a leaking valve body or front pump in the trans.
This will allow converter clutch oil into the converter clutch oil flow path and allow the clutch to apply under high torque condition as brake stalling or going WOT.
If this happens you loose your most of the converters STR ratio
Check these things out first.

01ssreda4

iTrader: (96)

Something isn't right....either with your tranny, converter, or tune perhaps. Changing the converter may or may not fix your problem. That converter is capable of 1.6x 60s in a full weight lightly modded car.

Z28SteveA4

iTrader: (16)

my front pump isn't leaking i know that. Idk about the valve body. How whould i go about checking the valvebody?

I have another question that maybe a problem thats causing this. When i drive down the highway the converter slips a lot when i am in overdrive. Is this suppose to happen? I understand it is a bigger converter and they should slip. It doent seem right to me. Say i am cruzing down the road st 50mph and the car shifts into overdrive and my rpms are at 1800 and then the converter will start slipping and the rpms will be up around 2300rpms. Is this right and could this be problem??

As for the tune i had a good tuner in nj tune my car maybe its worth taking it to somebody else to get it checked out. I really would like to figure out what wrong instead of taking the converter out. I hope its nothing major

mike13

iTrader: (27)

It could be correct because your pulling a taller gear, when it goes into overdrive does the converter lock up and the rpm drop back down?

TheBlackPlague

iTrader: (1)

I would definatly get a reputable tuner to check your car out. That could very well be the issue. Lack of power to push you off the starting line and an out of wack tranny tune could be your issues. I would for sure pin point the problem before i put sole blame on a specific part , a sponsers at that, and blast them on ls1tech. Hope you get it figured out man.

Z28SteveA4

iTrader: (16)

I didnt changes gears yet so the stock 3.23's are still in the car. The converter locks up when it goes into overdrive and then it starts to slip out of no where.

Z28SteveA4

iTrader: (16)

Maybe the way i worded it was wrong but im not trying to blame the sponsor. I had a problem and i posted it trying to figure out what the issue could be, whether it is the converter or possibly a trans issue. I apologize to sponsor for this.

I guess i dont have a choice at this point and time then to take it to a tuner and have him see whats up with the car. thanks for all the help guys. Its been very frustrating after pulling the trans and putting the converter in and have it not perform the way you want it to.

Jays_SSZ28

iTrader: (2)

He's not talking about leaking on the ground, he's talking about internal crossleaks.

I know you didn't take the pump out and wet air test it.

lt1-xjs

Stock gear with headers, catback, pulley and a tune, you may need a few more mods to get 1.7's. You can't just throw in a converter and expect to yank the wheels. What was your 60' with the stock converter ?

Z28SteveA4

iTrader: (16)

I believe your statement about the 1.7's is false because i have seen many ls1 cars with the same mods as me get into the 1.7's and high 1.6's. my best pass before the converter was a 12.65 @ 109 with a 1.92 60 so only a .1 gain in my 60 doesnt seem very good for a 3600 converter but if its not the converter and the trans then it makes more sense

lt1-xjs

Hopefully it's in the tune like others already suggested.

skat

iTrader: (3)

I do not have a yank but my first FTI was a 3600 and just exhaust, tune, and LCA my car pulled 1.66 to 1.71 60'. Full weight on DR stock 323 gears.

Something is going on I very much doubt it's the convertor, there's way to many happy Yank customers out there. Got to be a trans issue, maybe tune but mine was pulling very close to the same 60's, before retuning for the stall.

My convertor slips a pretty fair amount till lock up, but never slips at all after that.

RevGTO

iTrader: (12)

It sounds like your converter is randomly unlocking. This can be caused by misfire DTC's or internal trans issues as stated above. Make sure you have all the necessary trouble codes tuned out, or they will cause you trouble. The first step is to make sure your tune is right. Check out this thread for some guidance with your tuner:https://ls1tech.com/forums/automatic...ns-thread.html

DannoWS6

iTrader: (5)

Like mentioned above double check your tune 1st. But also look at other things, if you can log your run make sure you are not knocking and watch the A/F.
Think out of the box too, maybe your posi is on its way out, you could be peg leggin and not even know it.

Z28SteveA4

iTrader: (16)

thanks for all the help guys.

I talked to a tuner yesterday and i should be taking it to him next week. hopefully the problem will get solved

senicalj4579

iTrader: (41)

I hope you get that straightened out. I hope its just in the tune.

Z28SteveA4

iTrader: (16)

Same here man

I seen your write up about the converter install good stuff my man. That will help a lot of people on this forum. Hopefully you will have good results with your converter

senicalj4579

iTrader: (41)

Hey thanks glad I could help somebody!

FRom what iv seen you should be 1.7s-1.6s 60'. When you find out whats up let us know.

bigboykilroy

iTrader: (48)

I have a YankSS4000 with 3.90 gears and full bolt ons and get 1.58 60 foot. A little more work i think i can get it lower.