Today i should be getting my spare FCA and was wondering....what if i just did the FCA first then finished the other part another time? any adverse effects?

 

None whatsoever! I've been running like that now for a couple of weeks. How much did the FCA run ya?

 

like $90 plus shipping...how do you feel about the mod? did you notice anything?

 

I reworked my FCA only. No problems. The low end power is great. Boost come on alot earlier & quicker. I also noticed my boost sits at 7psi at 70mph where before it would be 3-5psi. I'm checking to see if this help my mpgs any. If not it'll be up for sale.

 

sounds good...i just took my spare one apart and i will be cutting it up tonight hopefully.

 

There is really nothing I could measure (like comparing before/after on a dyno) to tell me anything definitive. For most regular driving I saw no difference at all. The only difference I saw was on WOT runs. More smoke, faster spool, higher spool and power seemed to stay on longer meaning I was probably draining the rails before. This is all in conjunction with the lift pump upgrade too.

 

BTW-- + shipping? You didn't get it from the dealier then? Where did you source it?

 

i went on the cummins site and looked up parts dealers. just gave them my part # and it was here the next day.

 

well i just cut my FCA took about 2 mins on each side. what did you guys use to de-bur?

 

on the inside I used finest burr tool for the dremel I could get. On outside I used polishing wheel and compound and cleaned thoroughly afterward.

 

fca????? need info please have no clue what that part is

 

its where the fuel comes into the cp3...by enlarging it and one other thing its basically a DIY stage 1 mod.

 

I wouldn't term that as such. My stage 1 cp3 is much more extensive than elarging the passages of the fca.

Also, I was told just doing the fca gains very minimal. You need to modify the rotor housing to allow it to move enough fuel through the now modded fca.

 

yes.....your correct...

 

k good to know i am going with a stage 3 cp3 so this does not need to be done in my case thanks for the info