Is there a module that will 6000 RPM without a rev limiter or timing retard?
Thanks

My original Tbolt IV 24* modules had no rev limit. Now I run the V-6 modules, 14* and they have no rev limit. I not sure that is what you were asking though,......

BT

If I remember correctly some of the units retard timing after reaching certain RPMS. Do the V6 units hold timing up to 6K RPM?
Thanks

None of the BBC TB IV modules will retard any timing as rpm is increased. Also, none of the TB IV modules have rev limiters built in. TB IV's with rev limiters have a separate component and they were only used on Merc racing/blue engines.

Here is a chart with the advance curves.

Thanks!