HOW-TO: SVT IMRC DSI Intake Manifold Upgrade FOR ZETEC!!!! - Page 2 - Ford Focus Forum, Ford Focus ST Forum, Ford Focus RS Forum
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Old 12-23-2005, 05:19 PM   #11
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Quote:
Originally posted by crazymechanic
the computer ought to be able to adjust for the airflow although a tune would certainly improve things. the real trick is finding out where to set the DSI switchover, you will need a dyno for this

the reason your going to need a tune to fix the air/fuel is b/c you've now MOVED every single piece of sensoring that the ECU does of the incoming air, to a different location.

granted yes its a factory location, but the SVT ECU is setup to properly meter this air.

your stock ECU isn't. so your going to need a tune to calibrate your ECU to the sensors new location.
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Old 12-23-2005, 07:42 PM   #12
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Extremely nice write up!!!

I'll sticky this till Chad (S2) gets it added to his Complete 'HOW TO' Archive .
Added to the 'HOW TO' Archive!!!
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Old 12-24-2005, 07:45 PM   #13
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so with the svt manny we will have the advantage of having long rpm's and and more top end right?
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Old 12-25-2005, 01:45 AM   #14
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yup
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Old 12-25-2005, 02:28 PM   #15
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foci tuner would i be able to do this on my car , it being a atx?
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Old 12-25-2005, 07:50 PM   #16
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buuut theres no point in getting that tranny if if im gonna be boosting later hu
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Old 12-25-2005, 07:51 PM   #17
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My Focus is an ATX.
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Old 12-25-2005, 07:53 PM   #18
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03FOCUZ, This is the Intake manifold, not the tranny.
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Old 12-25-2005, 08:02 PM   #19
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Quote:
Originally posted by 03FOCUZ
so with the svt manny we will have the advantage of having long rpm's and and more top end right?
Nope, you may (or may not) get more power but it has nothing to do with how many RPM's the engine will turn.... you'll need a tune to change that.

Are there any before and after dyno's??? or is all this seat of the pants gains??
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Old 12-25-2005, 10:32 PM   #20
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I just had it done a Week and A half Ago. Funds for a tune and Dyno and bit of a ways off. What I am gonna say though, Is that before I had this in I couldn't brake the wheels free. Now, after having this done, I seem to do it by accident. So i can say that there is definitely some kind of Improvement.

Also, I notice a longer pull throughout the RPM range. Before, I would notice a point where there was nothing else there towards the top end and now I kind see it there......even more there with a proper tune.






Update: I am Getting about 200 miles a tank UNTUNED(70% City Driving). I will post number again after some Tuning or Dyno numbers are available.

Last edited by focituner; 12-28-2005 at 11:46 PM.
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