I get a 90mm Mass Air and A 5# Lower Pulley. Will I be safe with just a reburn? Mods in Sig.

 

The engine won't run without sparkplugs. Hope this helps!

 

No, no, no, i'm not stupid. I meant will I need colder plugs like Denzo's.

 

yes its best to run the cooler plugs with a 5# pulley remember stock plugs are for stock trucks. Just order a set of the denso's

 

I'm running a set of NGK TR-6 with that same combo , everything runs great with it , no misses or problems at all

 

and the TR6 plugs are less than $2.00 at most auto parts stores. (Part Number 4177)

 

I still can't figure out why people are changing over to the Densos if the NGK's work just as well. I mean it is a lot of money at least a $70 difference in price. You just have to figure out what heat range you need.


I'm not the spark plug expert, but this is what I think is the popular opinion on this board. Feel free to correct me if I'm off.

TR-5 stock, maybe 2lb pulley
TR-6 2lb-4lb pulley, maybe small shot (50-75) nitrous
BR7xxx 4lb+ pulley, maybe bigger shot (100-150) nitrous

 

I think you are a little off there. The TR6 is a cold plug that may be best past a 4# pulley. I am running TR5's with a 3# pulley and a DiabloSport chip and JL AirKit. So far, so good!

 

nice one Spike

easter - TR5's work great for a 2lb pulley