Launching an automatic (NA 300zx)

[ejj]

I was at the track this past weekend with a buddy of mine who has a NA, automatic, 300zx. Last year he ran easy 14.9's. This year he added a different catback (had one before) and 1 piece driveshaft.

For whatever reason this year he is bogging badly off the line. I rode with him once. He's brake-torquing as much as he can, and flooring it once he goes. However, the engine hangs around 2000 RPM for a minute and he comes off the line with no power. I told him if he had a 5sp I'd launch it at around 4500 RPM, but of course he can't do that.

He asked me for tips, and not having an auto I couldn't really help him. Is there anything he can do, or does he just need more power?

[Nismo87SE]

Tell him not to brake torque but to flash stall instead. Then have him advance his timing from 15* to 19*. Also a tranny cooler wouldn't hurt either.

[ejj]

Originally posted by Nismo87SE
Tell him not to brake torque but to flash stall instead. Then have him advance his timing from 15* to 19*. Also a tranny cooler wouldn't hurt either.

I've never had an auto...what's "flash stall"?

[MistaPeerez]

i have an auto..but yeah id like to know what flash stall is