95 civic ex w/ b18c1. it has type R intake, type R intake manifold.. plus other things. My question is vtec cracks hard around 5,500 - 6,000 RPM but isnt the b18c1 supposed to vtec at 4,400? the type R hits vtec at 6,000.. did the type R intake manifold only recognize power at 6,000? my question is by having this manifold am i gaining or losing power ?? thanks for the help guys !

 

Gaining if you are adding more fuel with that. What other supporting mods do you have?

 

supporting my intake manifold? none that i am aware of? lol. in general, DC headers and Apexi exhaust. im new to hondas & cars for that matter. another question so i dont start a new thread - should i use full synthetic oil on this B18c1 motor? if so any reccomended brands ? thanks again guys

 

my gsr hit vtec at 5600. thats where its suposed to hit.
go ahead and pick up a chilton for a gsr and for a civic.
you"ll get alot of answers on redlines and power bands out of those as well
you also sould run new injectors if you are running type R manifold anyway

 

mobil 1 full synthetic.