3 Mod Rule?
09-03-02, 09:39 AM
#1
Eats, Sleeps, Dreams Rotary
Thread Starter
3 Mod Rule?
A little advice needed...
just want to know if following the 3 mod rule you should have a FC when the 3rd mod goes on or you can have the 3rd mod and no FC....so far I have Apexi Intake & DP...I want to add the racing beat CB eahaust but don't know if it is safe to run that setup (Exhaust, DP, Intake) with out a FC.
Currently I am running a 11-9-10 boost pattern.
What do you think?
just want to know if following the 3 mod rule you should have a FC when the 3rd mod goes on or you can have the 3rd mod and no FC....so far I have Apexi Intake & DP...I want to add the racing beat CB eahaust but don't know if it is safe to run that setup (Exhaust, DP, Intake) with out a FC.
Currently I am running a 11-9-10 boost pattern.
What do you think?
09-03-02, 09:59 AM
#3
Rotary Enthusiast
Join Date: Feb 2002
Location: Frisco, Texas
Posts: 828
Likes: 0
Received 0 Likes
on
0 Posts
I have the intake, Downpipe, and Hi-flow cat with the stock cat-back. What Chris at Rotary Performance told me was that as long as you have the stock cat or cat-back, it will restrict exhaust flow enough to be OK without upgrading the ECU.
09-03-02, 10:08 AM
#5
Junior Member
Join Date: Jun 2002
Location: Spain (Malaga)
Posts: 17
Likes: 0
Received 0 Likes
on
0 Posts
[QUOTE]Originally posted by JUSTgotMINE
[B]I'm not quite at the same point, but have done a lot of searching on that subject. I found that it should be ok as long as you are running the stock cat.
What about RB CB and DP? some people advise that is OK.
Thank you in advance
Alex Kuipers
[B]I'm not quite at the same point, but have done a lot of searching on that subject. I found that it should be ok as long as you are running the stock cat.
What about RB CB and DP? some people advise that is OK.
Thank you in advance
Alex Kuipers
09-03-02, 10:17 AM
#6
I'm out...
iTrader: (1)
Join Date: Jun 2002
Location: King of Prussia, PA/Margate, NJ
Posts: 944
Likes: 0
Received 0 Likes
on
0 Posts
what other mods are you planning in the future??? i would go with the fc or a full ems first...better safe then sorry...chances are you won't stop with cb and you will need one in the future anyway....
09-03-02, 10:37 AM
#7
Eats, Sleeps, Dreams Rotary
Thread Starter
Well, I am at the point where I know i will get the PFC either next or after the RB Catback...but didn't know which order to get them in...since i would have to wait a few months (yes finances are an issue) to get the PFC I figured go ahead and get the CatBack for some enjoyment while I collect the cash for the PFC...but the mods planned are;
CB, or PFC next
MP
Fluiding radiator
Large SMIC
Clutch and flywheel
then go singel sometime next year.
Basically that's it...then you know all the cosmetic stuff last like FM-10s, some side skirtz and fuzzy dice
CB, or PFC next
MP
Fluiding radiator
Large SMIC
Clutch and flywheel
then go singel sometime next year.
Basically that's it...then you know all the cosmetic stuff last like FM-10s, some side skirtz and fuzzy dice
Trending Topics
09-03-02, 11:15 AM
#10
Full Member
Join Date: May 2002
Location: Virgina
Posts: 214
Likes: 0
Received 0 Likes
on
0 Posts
You guys should pm Wade about the 3 mod rule. He has done extensive testing on this and will tell you it's hogwash. Personally I ran a dp, intake, cb and a hi flow cat on a STREETPORTED motor at 12psi and had no problems. When I went mid-pipe I also added the upgraded ECU and ran 14 psi.
Andrew
Andrew
09-03-02, 11:31 AM
#11
Rotary Enthusiast
Join Date: Jul 2002
Location: CA
Posts: 896
Likes: 0
Received 0 Likes
on
0 Posts
yeah, everyone is going to tell you this and so am i 
,
every car is different no matter what mods etc. In the end you want to put you car on a real wideband and see what fuel mixture you are seeing. There are many factors including mods, condition of injectors/spark so on and so on. I say forget the 3-mod rule, and if you go to wades website it basically turns into the "don't go over 10psi" rule.
Danny
,every car is different no matter what mods etc. In the end you want to put you car on a real wideband and see what fuel mixture you are seeing. There are many factors including mods, condition of injectors/spark so on and so on. I say forget the 3-mod rule, and if you go to wades website it basically turns into the "don't go over 10psi" rule.
Danny
09-03-02, 11:45 AM
#13
Lives on the Forum
Join Date: Dec 2001
Location: San Lorenzo, California
Posts: 14,716
Likes: 0
Received 8 Likes
on
8 Posts
Wade's page:
http://www.wvinter.net/~flanham/wlanham/
The best bet is to put on the cat-back if you're going to and go to a dyno and wideband it. I would definitely worry about hitting fuel-cut without some form of boost control, especially on cold days.
BTW, I have a downpipe and RB cat-back and my A/F at WOT above 5000 rpm is below 10:1. My boost levels are similar to yours.
http://www.wvinter.net/~flanham/wlanham/
The best bet is to put on the cat-back if you're going to and go to a dyno and wideband it. I would definitely worry about hitting fuel-cut without some form of boost control, especially on cold days.
BTW, I have a downpipe and RB cat-back and my A/F at WOT above 5000 rpm is below 10:1. My boost levels are similar to yours.
09-03-02, 12:44 PM
#15
Senior Member
Join Date: Jan 2002
Location: Myanmar
Posts: 658
Likes: 0
Received 0 Likes
on
0 Posts
just wondering... mods: hks hyper exhaust, dual apexi air filter... wiv stock catalytic... but i did take out the honeycomb inside... is dat still good wiv the stock ecu???