Maybe I missed something along the way but I heard a bunch about how people remove swirl valves in 00vi swaps with the 5th gen lowers. Im using a 4th gen lower on my 00VI and noticed my lower has swirl valves...

Should I keep them in there or remove them?

 

remove them.

 

do all 4th gen lowers have swirl valves though?

 

only cali spec 99s I think

 

yep, if you're a 95 you don't have swirl valves

 

So says the FSM.

Better question (thread jack!) What are the three differences in IM's over the years? Courtesy Nissan has 3 of em listed.... The 95 being the most expensive

 

hmm well i picked up a spare for my swap and realized it has swirl valves...damnit...ill go through the process of taking them all apar...and tips on how to?

 

search, i cant recall.. i wanna say its pretty straight forward BUT idr what swap it was that required it but you might need to weld some holes for where the swirls rods are.

 

I remember reading something like that, but wouldnt it be just easier to unscrew the valves and leave the rod in?

 

Of course, but then your have a rod right in the middle of your laminar flow.

 

i found a write up on it so ill probably remove them later and JB Weld it. Thanks guys

btw I plan on doing a write up for the 00vi (setup #5 according to the 00vi manual) but in the all motor sections and ill probably have it started later today