ECU Upgrade required with my Modifications?
#1
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ECU Upgrade required with my Modifications?
Hey guys, Just want to get your views on my modifications. I've searched and still confused if there is a three or two modification limit before you need to upgrade the ECU before I hit fuel cut. My goal is to keep it very minimal as far as mods and have no further plans of upgrading that's why I'm not considering the Power FC for now.
My mods are:
1. HKS downpipe
2. Apexi N1 dual exhaust
3. Apexi power intake w/ hard pipes
Everything else is stock except for the AST and the 51R battery. Any advice will be helpful. No flames about searching please...
-Jay-
My mods are:
1. HKS downpipe
2. Apexi N1 dual exhaust
3. Apexi power intake w/ hard pipes
Everything else is stock except for the AST and the 51R battery. Any advice will be helpful. No flames about searching please...
-Jay-
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Originally Posted by p l a y j a y
I've searched...
Originally Posted by TpCpLaYa
stay strictly at 10 psi and you'll have no problems
#7
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Originally Posted by BlueRex
Really...
Hey Jason stop giving me a hard time...
What I'm confused with is a two or a three limit mod. I've read post and websites covering the topic.
Last edited by p l a y j a y; 12-05-05 at 12:08 PM.
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The only way you could be confused about how many mods are allowed with the stock ecu is you are listening to people who don't know what they are talking about....
Stay at 10 psi and your setup is perfectly safe on the stock ecu. Period.
Stay at 10 psi and your setup is perfectly safe on the stock ecu. Period.
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Thanks again for the clarification. Too bad the forum is filled with post with misinformation and you really have to be extra careful as to who you get your information from.
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The problem is that people read the old Robinette site or old posts from www.fd3s.net and don't realize that new info has come to light in the past 6 years....the worst part is when those people argue with people who know better!
There is a lot of wideband info out there on stock ecu cars showing them to be very safely rich, even with several bolt-ons. My own car was below 10:1 AFR for most of the rpm range, with a downpipe and cat-back.
There is a lot of wideband info out there on stock ecu cars showing them to be very safely rich, even with several bolt-ons. My own car was below 10:1 AFR for most of the rpm range, with a downpipe and cat-back.
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Originally Posted by kuroi FD
All you need to do is watch your boost. I would get a boost controller just to be safe, the stock map runs really rich so you are fine for now.
#13
just dont care.
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Originally Posted by rynberg
There is a lot of wideband info out there on stock ecu cars showing them to be very safely rich, even with several bolt-ons. My own car was below 10:1 AFR for most of the rpm range, with a downpipe and cat-back.
that is interesting. how did you verify those AFR's?
i am planning to dyno on the 18th with the only mod being a downpipe and the full-nonsequential mod, with the wideband o2 sniffer in the tailpipe, but i am worried about how accurate it is going to be with the stock cat being in there...
#15
people need to forget about the three-mod theory and stick with the one reality: first mod should be a boost gauge. After that, common sense and your eyes will tell you what needs to be done.
#19
Every car is different, that is why everyone says you need the boost guage. For instance mine is fully stock minus silicon IC pipes and I am currently getting 12-13psi. I am investing in the home depot MBC as soon as I have the time to do it. Good luck!
#23
just dont care.
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Originally Posted by Gadd
My car DP, Catback, Modified stock airbox, at 10 psi
great, now another question...
what about those same mods with the full non-sequential mod as well? its going to be flowing more CFM all other things equal if those flappers/butterflies are removed...