tuneing engine w/v-tec,and FI

[slammedcivy]

i have a hondata s200 unit im planning on going with a vtec head for my d16 setup. ive always heard it is alot harder to get a good tune with a vtec motor because when the vtec engages the ignition and fuel maps make a dramatic change..

how hard is it to get this tuned with the hondata FI and a dyno and will i run into trouble

and is vtec really worth having with FI

[TurboEF9]

SOHC VTEC is cake to tune. The VTEC "lope" isn't near as dramatic. You don't have to worry about cam overlap, and to compensate for VTEC, as a base increase fuel and ignition advance by 3% over the crossover point.

This, obviously, if you're using a non-VTEC ECU.

If you switch to a VTEC ECU, you'll have a high and low cam, map specifically dealing with VTEC in and out conditions.

[slammedcivy]

SOHC VTEC is cake to tune. The VTEC "lope" isn't near as dramatic. You don't have to worry about cam overlap, and to compensate for VTEC, as a base increase fuel and ignition advance by 3% over the crossover point.

This, obviously, if you're using a non-VTEC ECU.

If you switch to a VTEC ECU, you'll have a high and low cam, map specifically dealing with VTEC in and out conditions.

well then which vtec head will yeld the best results for making more power/best torque curve im thinking y8 but ive been having people tell me z6