NissanForums.com :: Nissan Forum - View Single Post - How should timing advance be in a turbo car?

Crazy-Mart · Mar 5th, 2005, 01:36 AM

wath he mean would be : wath kind of ignition tuning is used on turbo car compared to n/a one.

well you still advance it (tuning wise) but way less and the advance goes down in the higher boost/high load (if im right)... the best way to do it would be on the dyno with the proper equipment/getting a mallory unit for the E16 (unsure if its still avail.) changing it on an vacuum unit would be to change the spring and related vacuum arm mechanism with lower movement and getting a higher initial advance... you would want to get a little higher than stock initial to compassate for lower compression and as the boost comes on/vacuum lowers you would get it to retard from the oem specs...

(someone correct me if im wrong)

Mar 5th, 2005, 01:36 AM	#3 (permalink)
Crazy-Mart Kick ass 1.5L / Mod Join Date: Jul 2002 Location: Montreal Qc Posts: 2,061	wath he mean would be : wath kind of ignition tuning is used on turbo car compared to n/a one. well you still advance it (tuning wise) but way less and the advance goes down in the higher boost/high load (if im right)... the best way to do it would be on the dyno with the proper equipment/getting a mallory unit for the E16 (unsure if its still avail.) changing it on an vacuum unit would be to change the spring and related vacuum arm mechanism with lower movement and getting a higher initial advance... you would want to get a little higher than stock initial to compassate for lower compression and as the boost comes on/vacuum lowers you would get it to retard from the oem specs... (someone correct me if im wrong) __________________ Crazy ! Sentra Sport Coupe 87 Turbo 14.850@97.454mph H&R Spring, 15psi, TMIC, 370cc, Nismo mount and pulley, Almasi tuned ecu...