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Old 06-30-2006, 09:25 PM   #1
CFM Focus
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Default Are you using factory SVT intake manifold with forced induction???

If you're boosting with the stock SVT intake manifold (ProCharger, Vortech, Turbo) then you might be in for a big and costly surprise if you don't make one of the following changes soon:

1. Disconnect DSI toggle cable
2. Program ECU to run either the short runners OR long runners ALL THE TIME!

Failure to do either will cost you at the least a valve if not a valve and a piston. Unfortunately, one of our customers became a victim after only a couple of weeks of FI. You have been warned!
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Old 06-30-2006, 09:26 PM   #2
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Default Re: Are you using factory SVT intake manifold with forced induction???

Maybe this should get added to the FI sticky?
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Old 06-30-2006, 09:50 PM   #3
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Default Re: Are you using factory SVT intake manifold with forced induction???

Yep.

There is a internal seal that can brittle and break off and get sucked into an intake runner ... eventually it will find it's way into the chamber.

We had a customer that this happened to as well. A piece broke off and was residing in his intake runner while he was NA. When he installed the PW blower, the boost forced it into the chamber.
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Old 06-30-2006, 09:55 PM   #4
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Default Re: Are you using factory SVT intake manifold with forced induction???

Quote:
Originally Posted by COSDEVSVT
We had an customer that this happen to as well. A piece broke off and was residing in his intake runner while he was NA. When he installed the PW blower, the boost forced it into the chamber.

Wow, I didn't know they would break while NA. That is really bad!
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Old 06-30-2006, 10:03 PM   #5
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Default Re: Are you using factory SVT intake manifold with forced induction???

I'm guessing a poor choice of material to begin with ... must not age well.

Plastic and engines/underhood environment really don't mix well for the long term ...
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Old 07-01-2006, 01:06 AM   #6
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Default Re: Are you using factory SVT intake manifold with forced induction???

So in other words I will need to disable to the DSI clip by removing the cable coming from the IMRC? What effects will this have on performance, if at all? Also, is anybody looking into a way to fix this issue?

Jason
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Old 07-01-2006, 09:22 AM   #7
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Default Re: Are you using factory SVT intake manifold with forced induction???

Quote:
Originally Posted by ArmyFocus
So in other words I will need to disable to the DSI clip by removing the cable coming from the IMRC? What effects will this have on performance, if at all? Also, is anybody looking into a way to fix this issue?

Jason

The correct way would be through programming the ECU to run EITHER the short OR long runners ALL the time. That means no switching AT ALL. Using the short runners will give you higher rpm power and long runners will give you better torque down low.

We were thinking of splitting the manifolds in half and welding the plastic ring to the main body so it will not come loose but know that COSDEVSVT mentioned that they are breaking even in NA applications then we might have to think of something different. If the plastic is becoming brittle then it probably won't weld very well. We might have to make some billet replacements that will press on much tighter and will not break or distort under boost.
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Old 07-01-2006, 10:43 AM   #8
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Default Re: Are you using factory SVT intake manifold with forced induction???

sweet idea can u make the whole manifold, maybe make the runners i bit bigger or some improvements to it?
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Old 07-01-2006, 10:57 AM   #9
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Default Re: Are you using factory SVT intake manifold with forced induction???

can I program the runners via the ECU using my Predator?

Jason
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Old 07-01-2006, 02:01 PM   #10
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Default Re: Are you using factory SVT intake manifold with forced induction???

Quote:
Originally Posted by orangeZXT
sweet idea can u make the whole manifold, maybe make the runners i bit bigger or some improvements to it?

We have looked and are still looking into possibly making a manifold but so far the quotes have been too high. The SVT manifold isn't too bad if we can get this issue solved.
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Old 07-01-2006, 02:03 PM   #11
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Default Re: Are you using factory SVT intake manifold with forced induction???

Quote:
Originally Posted by ArmyFocus
can I program the runners via the ECU using my Predator?

Jason

I doubt the pre-programmed Predator has that feature. If not, it would have to be done via a custom tune. If we end up doing the ProCharger install for you it will be tuned with SCT and we'll be able to take care of that.
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Old 07-01-2006, 02:12 PM   #12
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Default Re: Are you using factory SVT intake manifold with forced induction???

Thanks guys....you just made me scared as hell to drive my freakin car....I appreciate that.....

I'm only N/A too.....

So the piece was residing in the heads intake runner....great.....
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Old 07-01-2006, 02:35 PM   #13
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Default Re: Are you using factory SVT intake manifold with forced induction???

We will try to have a fix for this ASAP.
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Old 07-01-2006, 04:12 PM   #14
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Default Re: Are you using factory SVT intake manifold with forced induction???

You've gotta be freakin' kidding me. Maybe make a mid length intake runner (aftermarket)

oi.

adding to the references thread.
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Old 07-01-2006, 06:12 PM   #15
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Default Re: Are you using factory SVT intake manifold with forced induction???

dang this sucks now i have to worry about this when i drive.
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Old 07-01-2006, 10:37 PM   #16
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Default Re: Are you using factory SVT intake manifold with forced induction???

Quote:
Originally Posted by COSDEVSVT
Yep.

There is a internal seal that can brittle and break off and get sucked into an intake runner ... eventually it will find it's way into the chamber.

We had a customer that this happened to as well. A piece broke off and was residing in his intake runner while he was NA. When he installed the PW blower, the boost forced it into the chamber.

After the fact how did you determine it happened while NA?
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Old 07-02-2006, 12:09 AM   #17
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Default Re: Are you using factory SVT intake manifold with forced induction???

Quote:
Originally Posted by tracksidelogistics
After the fact how did you determine it happened while NA?

Because the PW kit replaces the factory intake manifold which is a big plus.
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Old 07-02-2006, 09:58 AM   #18
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Default Re: Are you using factory SVT intake manifold with forced induction???

So while NA the the seal came off the stock intake and went into the head. Then when FI the seal was forced further in and caused damage?
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Old 07-02-2006, 10:06 AM   #19
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Default Re: Are you using factory SVT intake manifold with forced induction???

Quote:
Originally posted by 1turbofocus
As for the SVT Intake i did a write up on it back in late 2002 about the inner white/green seals coming off the end of each of the runners all you have to do is remove the TB and fish in there and pop them loose and take them out , after doing so i saw to power loss on the dyno from removing them and it is a quick fix to cure the problem
It is very common for them to come loose but VERY rare they hurt the engine
Tom

Here is what Tom said.
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Old 07-02-2006, 10:11 AM   #20
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Default Re: Are you using factory SVT intake manifold with forced induction???

Quote:
Originally Posted by tracksidelogistics
So while NA the the seal came off the stock intake and went into the head. Then when FI the seal was forced further in and caused damage?


It wasn't the entire seal (just a piece of it), but yes.

It was discovered when the customer took a really close look into his factory SVT manifold and found the piece of the seal missing.

You need to be a contortionist to be able to easily look down the head intake runners with the engine in the car.
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Old 07-02-2006, 10:25 AM   #21
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Default Re: Are you using factory SVT intake manifold with forced induction???

Quote:
Originally Posted by CFM Focus
I doubt the pre-programmed Predator has that feature. If not, it would have to be done via a custom tune. If we end up doing the ProCharger install for you it will be tuned with SCT and we'll be able to take care of that.

Awesome, I'll let you take care of it for me then.

Jason
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Old 07-02-2006, 11:28 AM   #22
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Default Re: Are you using factory SVT intake manifold with forced induction???

mamma says SVT focus is the devil
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Old 07-02-2006, 03:33 PM   #23
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Default Re: Are you using factory SVT intake manifold with forced induction???

yeah, but that's okay, 'cause me and Lucifer are buddies. (j/k of course)

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