Locking the converter on the dyno...
Thread Starter
On The Tree
Joined: Jan 2002
Posts: 119
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From: Atlanta
Locking the converter on the dyno... What's everyone experience with locking the converter under WOT? I talked to Yank and they said the regular Yank 3000 I have is not able to handle it but they can rebuild it for like $350.
Is it worth it?
What would I gain on the dyno? (BTW, on a MMS 388 all-bore motor). How about locking after the 1/8 mile?
Is it worth it?
What would I gain on the dyno? (BTW, on a MMS 388 all-bore motor). How about locking after the 1/8 mile?
Re: Locking the converter on the dyno... Locking it on the dyno will be the only way to measure accurately HP versus RPM. You can still generally tune A/F, but an unlocked high stall converter introduces 2 problems on the dyno:
1) it skews the rpm/mph factor which generally causes the rpms to be overstated.
2) the converter flash prevents measuring TQ and A/F ratio below about 4500 rpm (even higher on race converters).
Track gains from locking it are likely to be small and not worth the damage, IMO.
1) it skews the rpm/mph factor which generally causes the rpms to be overstated.
2) the converter flash prevents measuring TQ and A/F ratio below about 4500 rpm (even higher on race converters).
Track gains from locking it are likely to be small and not worth the damage, IMO.
