for all 420a turbo DSMers

[trump4w]

can anyone who has a 420a tubro tell me what they have their plugs gapped at? and their performance with those gaps? .044 is recommended for stock so obviously it needs to change for turbo, i am running 12-14 psi, and some people are saying .028 to .032, is this correct?

 

[cimotorsports]

We always run the gap a bit smaller when running more boost, when the boost gets higher the stock ingition has a hard time jumping the electrode gap, unless you upgraded your ignition....

 

[BigRand]

get a colder plug as well....for example.

stock plug for the NT from NGK is a BKR6E-11

You should get the NGK BKR7E-11.....some places may have to special order it....but usually nappa or carquest carry them in stock. (at least in the northwest area).

But yes gap the plugs around .30

 

[trump4w]

thanks for the confirmations guys