SAPS

Guys,

Anyone have first hand accounts of the average difference between dyno results with the converter locked & unlocked?

Thanks!

Slowhawk

iTrader: (12)

Almsot impossible to say. Stock converter has very little if any difference.Have seen 100rwhp difference on highly built cars.

SAPS

I'm new to all this...

My car made 391 unlocked with a 2800Vig on a Dynojet...does that help give a range?

thanks

gillbot

iTrader: (27)

mine made around 370 unlocked, 399 locked with a PT 4000.

jp74

iTrader: (3)

From what I seen, locked you will see between 30-40 more rwhp depending on the size and effeciency of the stall. I always have had mine dynoed unlocked.

DeltaT

iTrader: (5)

I locked my 4L80E converter during my 3rd run of my first dyno session and gained 30rwhp and 26rwt, nudging me over the 500HP mark to 501rwhp/469rwt, 383 w/7.8# of boost.

Why would you dyno unlocked?

Jim

86 IROC

iTrader: (14)

When my car was just bolt ons, I saw only a 5.5 RWHP difference with my SY3500.

johnster

iTrader: (27)

look in sig

unlocked power is what you will c driven around

Dan

iTrader: (1)

335 unlocked
360 locked

SICKSS/Z28

when your at the track does it lock down the 1/4 no so why dyno that way?

SAPS

thanks for feedback...

tuner said the hp software wouldn't allow him to lock it on the dyno run in 3rd gear.

LS1powered09

iTrader: (13)

lock it while wot just to see where you at. thats what my tuner did.

SAPS

Thanks for feedback guys

Looks like 20-30 is the range...so locked I'll say 411!

Not too shabby for an A4 budget build. With a ported FAST I can tack on a few more for braggin rights...LOL

Maybe next year.

LS1powered09

iTrader: (13)

those are some great numbers, congrats man, keep it up

JS

iTrader: (4)

EFI LIVE wont lock the verter in a 06 GTO,I have a tool that will allow me to do it but why should I,all it will give me is a number woo hoo..I have dynoed my GTO unlocked on every run at 3500 to redline...

Results were 436/407 UNLOCKED SAE Corrected..
Locked it would be somewhere around 455ish.....

SAPS

Looks like u have similar mods...with exception of fast intake...maybe i'll do that next year when I get the itch!

Mazzenger

iTrader: (5)

My SY3500 only had a 5-6 rwhp difference from locked and unlocked.
My SS4000 has a 40+ rwhp difference from locked and unlocked.

But the SS4000 kills my previous converter.

86 IROC

iTrader: (14)

When you swapped converters, is that all you changed? Just curious as to what you gained from the swap as I have the same converter and a new converter is in my future.

Mazzenger

iTrader: (5)

I also had the tranny beefed up with the new converter. On the street the SS4000 pulls harder, hits harder and feels stronger than the SY3500. It's shift extensions are at 6000rpm as well, which is 500 more than the SY3500. I don't have good track #s for comparision. I liked my SY3500, but i like the 4000 little more.

86 IROC

iTrader: (14)

OK, just wondering. My SY3500 is VERY consistent, but I think it lacks vs. a newer converter more matched to my combination. I'm not sure what I am going to go with so far. Right now looking at FTI, Circle D, and Vig.