I meant to add that Ari put a nice map in my PFC and it ran incredible!!! Smoother than the stock ecu for sure. Nice afr and transition no hesitation whatsoever. Very well thought out map. That was without an actually tune on the car. It doesn't have the protection of the factory ecu of course, but she ran beautifully. Then I had to go out and put bigger injectors and blah blah...... damnit
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Originally Posted by gracer7-rx7
(Post 12361543)
The problem with those stock-like ECUs is that you can't run them with a street ported motor :(
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Originally Posted by gmanpie
(Post 12360609)
I've owned two (JDM) FDs now:
Suspension-wise, the Ohlins was superior for daily driving and much superior for track driving, but the gap isn't as much as I would've thought. OEM is definitely good enough for country roads if it's new(ish).
Originally Posted by spintriangles
(Post 12360627)
Gman I agree I have the ohlins on my car and they are superior to the oem especially on a roadcourse.
Originally Posted by gracer7-rx7
(Post 12361543)
The problem with those stock-like ECUs is that you can't run them with a street ported motor :(
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Originally Posted by djseven
(Post 12360925)
A whole lot of truth^. Im a big proponent of the Pettit and M2 modified factory ECUs. Even with emissions deleted, the stock ecu offers the best driveability and comfort for stock twins if you have a healthy engine. It can even handle minor porting before the overly rich idle becomes obnoxious. One thing you mention that most ignore is the tip in issues with aftermarket ecus. In my opinion, its more annoying then minor 3k hesitation that happens on stock ECUs. The stock ecu/modified ecus do have their limits but overall driveability is unmatched. The only reason I like the PFC as well is because of the commander and its ability to display so many different readings without having aftermarket gauges displayed in the car.
Mike |
Originally Posted by Montego
(Post 12360632)
Turbo lag on a stock setup? :scratch:
If anything, the main attribute of the stock sequential system is the instant boost response. |
Originally Posted by arghx
(Post 12361952)
Getting back to this comment: it depends on your reference point. Drive modern turbo BMW's for example and they have much quicker response than a stock FD, closer to a naturally aspirated engine. Drive a naturally aspirated engine and it feels responsive, until you drive an electric and it feels laggy in comparison.
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One thing I will give the FD is the wide rpm range of useable boost & rpm. Most of these new downsized turbo engines have like a 3000rpm window before they fall on their face, like 2000-5000rpm is common now.
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Originally Posted by ptrhahn
(Post 12361576)
The thing that always gets me about a stock FD, is how high you sit (and then how huge the wheel is). I've had race seats fixed-mounted on the floor and a 330mm wheel forever, and I can't remember the stocker. I think I'd need some Spirit R seats or something for a daily driver. I'd love to have the space for one though.
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Enjoying a stock FD, but its a daily struggle to decide between EFR and BNR. I think the only solution is to get two xD
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Originally Posted by Johnny Kommavongsa
(Post 12361626)
How often do you drive your FD? Do you think you would drive it more if it was completely stock?
I suspect I would have to be more careful driving a completely stock FD than my mildly modded FD since the stock cooling system just doesn't work well enough for my usage - even in stop/go traffic. YMMV |
The biggest thing that would get me driving my FD more would be putting the A/C back in.
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I dyno'ed my close to stock FD with stock port, stock twins, AC, cat and RB exhaust running on Pettit ECU and got 345 rwhp on a Dynapack dyno.
Definitely admire the capability and appreciate it very much. I've been looking for a replacement and can't find one unless I spend 4x the price. |
That sounds pretty strong.
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Originally Posted by pd_day
(Post 12366666)
I dyno'ed my close to stock FD with stock port, stock twins, AC, cat and RB exhaust running on Pettit ECU and got 345 rwhp on a Dynapack dyno.
Definitely admire the capability and appreciate it very much. I've been looking for a replacement and can't find one unless I spend 4x the price. |
Originally Posted by djseven
(Post 12367122)
The Pettit ECU can be a lot of fun and the best part about it is retaining the stock ecu drivability assuming you don't have a 3k hesitation issue.
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Originally Posted by ToxicMongoose
(Post 12367123)
what would make this 3k hesitation worse? mine all of a sudden at 3k falls on its face then pulls strong after. solenoid or some kind of vac leak?
Its unfortunately not always easy to diagnose. Better grounding or new wiring harnesses are typically the best solution to the problem. |
Originally Posted by djseven
(Post 12367122)
Most of the Pettit ECU FDs I owned or was in our group back int he early 2000s were making between 320-350rwhp on 12-15lbs with fulll exhaust and supporting mods. When I was trying to push a set of unbreakable seals to their limits years ago I raced my buddies E55 that trapped 93mph in the 1/8 mile(high 11 second car) and I pulled on it running a pettit ecu, water meth injection and 16-17lbs of boost. The Pettit ECU can be a lot of fun and the best part about it is retaining the stock ecu drivability assuming you don't have a 3k hesitation issue.
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Originally Posted by Johnny Kommavongsa
(Post 12367377)
How did the 16 - 17 lbs setup compare to the 8374 setup?
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