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blown428fe
08-26-2006, 06:11 AM
EVAC to the headers, whos running these systems? and do you have a pic .
IMPATIENT 1
08-26-2006, 06:27 AM
i've already bought my evac kit, just waiting for headers to go to shiat 1st. while i'm at it, i'm havin o2 bungs installed as well, for easier mixture tuning!i've herd the evac kit will give another 5hp just from sealing up the rings better, my bbf has alittle blow by(no pvc), that's why i'm doin it.
blown428fe
08-26-2006, 06:30 AM
i've already bought my evac kit, just waiting for headers to go to shiat 1st. while i'm at it, i'm havin o2 bungs installed as well, for easier mixture tuning!i've herd the evac kit will give another 5hp just from sealing up the rings better, my bbf has alittle blow by(no pvc), that's why i'm doin it.
What kind of kit did you get? I picked up a Mr Gasket kit yesterday.
Duane HTP
08-26-2006, 06:37 AM
They work well as long as you don't have mufflers. Also put the tubes into the side of the collector. If put in the bottom, water will get in on wet headers.
blown428fe
08-26-2006, 06:40 AM
They work well as long as you don't have mufflers. Also put the tubes into the side of the collector. If put in the bottom, water will get in on wet headers.
Duane- What about baffles?
Wet Dream
08-26-2006, 06:48 AM
Baffles will keep the evac from working. I know. ;)
396_WAYS_TO_SPIT
08-26-2006, 06:53 AM
Baffles will keep the evac from working. I know. ;)
Are you talking about baffles in the valve covers or in the headers???? What happened? Im curious because I am going to be installing mine this week....
IMPATIENT 1
08-26-2006, 08:11 AM
What kind of kit did you get? I picked up a Mr Gasket kit yesterday.
i've got the same, herd they're just as good as all the others, not very nice lookin though.
duane, good advise, i didn't think about it.
Duane HTP
08-26-2006, 09:12 AM
Here's the way we handle the job.
http://www.hi-techperformance.com/images/PT_0678_ed.JPG
snake321
08-26-2006, 09:40 AM
I have a set of headers over here you can look at with the bungs in.
Wet Dream
08-26-2006, 05:42 PM
Are you talking about baffles in the valve covers or in the headers???? What happened? Im curious because I am going to be installing mine this week....
Baffles in the valve covers are fine, its the baffles in the headers that screw up the pressure. You can't put the baffles pre-evac (closer to the collector), they won't slide in past the bung. The bungs, like mine are angled inside the headers to draw the crankcase pressure as the exhaust passes over it.
YeLLowBoaT
08-26-2006, 05:56 PM
Here's the way we handle the job.
http://www.hi-techperformance.com/images/PT_0678_ed.JPG
so how for a puke tank like that???? I am going to be placing a order with you shortly anyway for some jet rebuild parts....
Duane HTP
08-26-2006, 05:57 PM
Baffels also cause back pressure. Evac works on a ventura vacuumn principal which baffels break up.
Taylorman
08-26-2006, 06:09 PM
I had a puke tank on mine. I have some blowby and i was getting oil out my dipstick when i would run it at wot. I put the evac on and it got rid of the oil out the dipstick.
http://i22.photobucket.com/albums/b334/vidrinek/Boat/100_1438.jpg
YeLLowBoaT
08-26-2006, 06:14 PM
I also take it, it would not be a good Idea do to this on TT headers.
Outlaw
08-26-2006, 06:51 PM
Taylorman do you have a restrictor in that line?
a buddy had his set up like that but after a good 10
min run his oil pressure would start to fluctuate
all the vacuum would hold the oil in the top of the engine
he ended up tapping the fittings and running a holley jet
in them
works fine now
SmokinLowriderSS
08-26-2006, 08:24 PM
I also take it, it would not be a good Idea do to this on TT headers.
Duane'll correct me if I am wrong but I am pretty sure he's running an evac setup on his blown lake boat (yea, right, 120+mph "lake" boat) and it has TT jacketed bassets on it.
YeLLowBoaT
08-26-2006, 08:38 PM
Duane'll correct me if I am wrong but I am pretty sure he's running an evac setup on his blown lake boat (yea, right, 120+mph "lake" boat) and it has TT jacketed bassets on it.
Look at the pic in this thread
Here's the way we handle the job.
http://www.hi-techperformance.com/images/PT_0678_ed.JPG
SmokinLowriderSS
08-27-2006, 05:13 AM
Yer right, that is Duanes. I wonder where that memory is from. :idea: Guess it means I don't hang out at his shop nearly enough. :cry:
I am pretty sure I saw a setup on a boat there that he & I spoke about ... but that was last fall sometime or so a year ago.