Where do I put this now?
Thread Starter
Racer
Joined: Feb 2007
Posts: 443
Likes: 20
From: Lufkin TX
Where do I put this now?
I'm installing my power duct and the little hose that once was tucked into the accordian coupler now has no place to go since I'm putting in the smoothie tube. What do I do with it? 98 coupe
Drifting
Joined: Feb 2005
Posts: 1,298
Likes: 21
From: east taunton ma
I have a 98 as well. When I installed my Calloway Honker they told me it isnt needed. I just took it off and saved it with my other corvette parts. I think its used to put any unburned fuel back into the thorttle body.
Tech Contributor
Joined: Dec 1999
Posts: 32,910
Likes: 2,402
From: Anthony TX
CI 6,7,8,9,11 Vet
St. Jude Donor '08
It goes to your Fuel Pressure regulator and senses vacuum or pressure inside the ducting between the MAF and TB. It does need vacuum to lessen your fuel pressure at IDLE. You can drill a small hole in the duct and use RTV to seal it in place.
Measure your fuel pressure and then apply a vacuum to the hose and watch your fuel pressure change slightly.
BC
Measure your fuel pressure and then apply a vacuum to the hose and watch your fuel pressure change slightly.
BC
Tech Contributor
Joined: Dec 1999
Posts: 32,910
Likes: 2,402
From: Anthony TX
CI 6,7,8,9,11 Vet
St. Jude Donor '08
One of the very first mods that i did to my 98 MN6 Coupe was to get the ZIP Products Fuel Pressure Regulator recalibration kit. It changed the location of the fitting to one of the vacuum lines on the passengers side of the TB.
I do even think they sell it any more.
Bill
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Race Director
Joined: Apr 2007
Posts: 11,152
Likes: 890
From: South Western Ontario
I really don't understand why it connects that way or what the point is.
The line to manifold vacuum makes sense. Lots of applications use that connection and it keeps the fuel pressure across the injectors constant as the intake manifold pressure changes.
The line to manifold vacuum makes sense. Lots of applications use that connection and it keeps the fuel pressure across the injectors constant as the intake manifold pressure changes.