Locking the converter on the dyno..
#1
TECH Enthusiast
Thread Starter
Join Date: Jun 2005
Location: Wichita, KS
Posts: 546
Likes: 0
Received 0 Likes
on
0 Posts
Locking the converter on the dyno..
I’m just curious how many of you have dyno’d your car with the converter locked?
I got my car dyno’d this past weekend, and I wasn’t planning on locking the converter, but the dyno operator said it was needed. He said as long as we did it a certain way, it wouldn’t damage anything. I manually shifted the gears using HPTuners VCM Scanner, and then once in 3rd gear, I locked the converter and we made a pull.
I’ve heard from multiple people this is really hard on the converter. I have also heard from multiple people this is fine for the dyno, just don’t lock the converter @ WOT on the street.
I have a Yank SS3600 converter, and Dave @ Yank says NOT to EVER lock the converter at WOT.
Just trying to see what everyone else has done!
I got my car dyno’d this past weekend, and I wasn’t planning on locking the converter, but the dyno operator said it was needed. He said as long as we did it a certain way, it wouldn’t damage anything. I manually shifted the gears using HPTuners VCM Scanner, and then once in 3rd gear, I locked the converter and we made a pull.
I’ve heard from multiple people this is really hard on the converter. I have also heard from multiple people this is fine for the dyno, just don’t lock the converter @ WOT on the street.
I have a Yank SS3600 converter, and Dave @ Yank says NOT to EVER lock the converter at WOT.
Just trying to see what everyone else has done!
#2
I’m just curious how many of you have dyno’d your car with the converter locked?
I got my car dyno’d this past weekend, and I wasn’t planning on locking the converter, but the dyno operator said it was needed. He said as long as we did it a certain way, it wouldn’t damage anything. I manually shifted the gears using HPTuners VCM Scanner, and then once in 3rd gear, I locked the converter and we made a pull.
I’ve heard from multiple people this is really hard on the converter. I have also heard from multiple people this is fine for the dyno, just don’t lock the converter @ WOT on the street.
I have a Yank SS3600 converter, and Dave @ Yank says NOT to EVER lock the converter at WOT.
Just trying to see what everyone else has done!
I got my car dyno’d this past weekend, and I wasn’t planning on locking the converter, but the dyno operator said it was needed. He said as long as we did it a certain way, it wouldn’t damage anything. I manually shifted the gears using HPTuners VCM Scanner, and then once in 3rd gear, I locked the converter and we made a pull.
I’ve heard from multiple people this is really hard on the converter. I have also heard from multiple people this is fine for the dyno, just don’t lock the converter @ WOT on the street.
I have a Yank SS3600 converter, and Dave @ Yank says NOT to EVER lock the converter at WOT.
Just trying to see what everyone else has done!
#3
12 Second Club
iTrader: (2)
There are convertors specifically engineered to be able to lock them at wot , multi disc billet I believe. Seen a link in this section where 50-60 hp and 70 ft lbs were picked up by locking but that was a 600 hp turbo build with a vertor built to be locked at wot I recall.
with a convertor not designed to be locked at wot you might get a free pass for a one gear dyno pull and the operator knows it will provide the magic number for you but I wouldn't do it again till you get some advice from some convertor builders , sounds risky...
with a convertor not designed to be locked at wot you might get a free pass for a one gear dyno pull and the operator knows it will provide the magic number for you but I wouldn't do it again till you get some advice from some convertor builders , sounds risky...
#4
10 Second Club
iTrader: (41)
Last time my car was tuned I had the tuner NOT lock it. Only multi disc converters are meant for that and even that's been debatable depending on what sponsor you talk to.
One thing I learned is that there's plenty of talk about locked dyno #s but I haven't read a whole lot on this board about the risk of locking at WOT. IDK if its ignorance or people just want the higher dyno reading but I told my tuner I don't care about locked #s so don't do it.
My previous stall was a ss3600 and at this time I was ignorant of the risk of WOT lockup. It was locked on the dyno and no problems but now I know the risk. Probably will never do it again.
One thing I learned is that there's plenty of talk about locked dyno #s but I haven't read a whole lot on this board about the risk of locking at WOT. IDK if its ignorance or people just want the higher dyno reading but I told my tuner I don't care about locked #s so don't do it.
My previous stall was a ss3600 and at this time I was ignorant of the risk of WOT lockup. It was locked on the dyno and no problems but now I know the risk. Probably will never do it again.
#5
Moderator
I recall threads where the OP said the dyno operator locked the converter and now his lockup is slipping (or worse).
The dyno operator wants to improve his "reputation" by posting a bigger number while risking your converter and trans. I would not.
As mentioned, a much more expensive triple clutch converter is designed to be locked at WOT and that would be fine on a dyno. But not a typical single clutch converter.
The dyno operator wants to improve his "reputation" by posting a bigger number while risking your converter and trans. I would not.
As mentioned, a much more expensive triple clutch converter is designed to be locked at WOT and that would be fine on a dyno. But not a typical single clutch converter.
#7
12 Second Club
I'd be worried, especially with a smaller diameter than stock converter.
BTW, I was shocked to find that the stock tune from GM for my LT1 4L60E has the converter locking at WOT by default, but of course that's with a 12 converter.
BTW, I was shocked to find that the stock tune from GM for my LT1 4L60E has the converter locking at WOT by default, but of course that's with a 12 converter.
Trending Topics
#9
LS1Tech Sponsor
iTrader: (3)
if your comparing apples to apples like our SRL and SRL-3 series which are both 245mm furnace brazed, billet back, billet piston, and so on. then you're talking about the additional weight of 2 triple disc friction plates that cant weigh more than a pound together.
__________________
FTI COMPETITION CONVERTERS AND TRANSMISSIONS
"IT'S NOT CHEATING, IT'S THE COMPETITIVE EDGE."
1-866-726-8358
info@ftiperformance.com
FTIPerformance.com
FTI Converter build sheet
FTI COMPETITION CONVERTERS AND TRANSMISSIONS
"IT'S NOT CHEATING, IT'S THE COMPETITIVE EDGE."
1-866-726-8358
info@ftiperformance.com
FTIPerformance.com
FTI Converter build sheet