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Re: Felpro valley pan fiasco
[Re: RapidRobert]
#880379
12/15/10 06:37 PM
12/15/10 06:37 PM
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Joined: May 2003
Posts: 15,487
Florida
scratchnfotraction
I Live Here
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I Live Here
Joined: May 2003
Posts: 15,487
Florida
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I remember the... stuff it with 100$$ bills  I have always blocked it running an alum intake and run a heat disapater under the alum carbs on my SB I will do the same on the BB also it helps with heat soak and perking gas out of the eddie carbs/vapor lock cheap fuel today evaps fast and is more for a feul injected engine with high pressure I have just cut thin peices and used copper rtv to stick them in place,most gaskets that are block will burn thru in a short time but I have also used a whole tube of the copper rtv to fill the complet void in the intake passage one thing for sure,the copper rtv will not burn and seals up some warped headers real fast and ezy I am droping the BB intake by the welding shop at work to have the ports weld shut on my wieand intake this go round on another note...whats the opinions on that cross over in the intake was to eliminate the H-pipes in the exhst sytem that cars came with back in the day old timer mechanic said that mopar killed 2 birds with one stone  adds heat for fast warm up and fuel atomazation and does the same thing the H-pipe did to = out/help scavage the back pressure/exhast pulse on #3 and #6 cyls or #4 and #5 cyls I know I can hear a differance in the glass packs tone/sound with it open or blocked idling at 850 rpms..closed has more deep tone and poping I think he is  but then again what do I know 
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Re: Felpro valley pan fiasco
[Re: scratchnfotraction]
#880381
12/15/10 06:43 PM
12/15/10 06:43 PM
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Joined: Jan 2003
Posts: 28,067
Irving, TX
feets
Senior Management
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Senior Management
Joined: Jan 2003
Posts: 28,067
Irving, TX
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I used one of the FelPro valley pans with the blocked crossover. That cost me a turbocharger. The little holes were stamped but not punched out. One of the little pieces blew out of the pan and into the exhaust. It ended up getting folded in half and shoved into a turbo jsut far enough to chew up the compressor wheel. Thanks FelPro! 
We are brothers and sisters doing time on the planet for better or worse. I'll take the better, if you don't mind.
- Stu Harmon
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Re: Felpro valley pan fiasco
[Re: scratchnfotraction]
#880382
12/15/10 06:58 PM
12/15/10 06:58 PM
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Joined: Dec 2006
Posts: 3,533
Indiana
Fury Fan
master
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master
Joined: Dec 2006
Posts: 3,533
Indiana
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Quote:
on another note...whats the opinions on that cross over in the intake was to eliminate the H-pipes in the exhst sytem that cars came with back in the day
I'm not saying the old guy's right on the reason, but he's right that there can be sound tuning effects.
Back when I was trying to solve some heatsoak problems, I tried a blocked crossover on one of my cars that has an X-pipe. At somewhere around 2500 rpm I got an **awfull** exhaust resonance, so bad that I could hardly drive the car thru the neighborhood. It only lasted a few hundred RPM, but it was loud, and sounded like 2 Hondas fighting inside a metal shed.  Should've videotaped it for posterity and youtube. 
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Re: Felpro valley pan fiasco
[Re: scratchnfotraction]
#880383
12/15/10 07:35 PM
12/15/10 07:35 PM
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Joined: Jan 2003
Posts: 75,005
U.S.S.A.
JohnRR
I Win
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I Win
Joined: Jan 2003
Posts: 75,005
U.S.S.A.
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Quote:
on another note...whats the opinions on that cross over in the intake was to eliminate the H-pipes in the exhst sytem that cars came with back in the day
old timer mechanic said that mopar killed 2 birds with one stone
adds heat for fast warm up and fuel atomazation and does the same thing the H-pipe did to = out/help scavage the back pressure/exhast pulse on #3 and #6 cyls or #4 and #5 cyls
I know I can hear a differance in the glass packs tone/sound with it open or blocked idling at 850 rpms..closed has more deep tone and poping
I think he is but then again what do I know
I don't know about that because the 440 4bbl and 6pk cars in 70/71 had H pipes and the crossover in the intake .
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Re: Felpro valley pan fiasco
[Re: Paul_Fancsali]
#880385
12/15/10 08:16 PM
12/15/10 08:16 PM
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Joined: Dec 2004
Posts: 733
Northern Virginia
Moparmaniacc
OP
super stock
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OP
super stock
Joined: Dec 2004
Posts: 733
Northern Virginia
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Quote:
If you run the car at all in cool weather or on the street I would leave it open. Cars run better warmer then too cold
If my Chally has Edelbrock Performer (not Performer RPM!) with headers, is 100% street driven in VA where it gets 95F in summer and only occasionally driven in 45F or below in autumn, should I block the crossover or not?
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Re: Felpro valley pan fiasco
[Re: Moparmaniacc]
#880388
12/15/10 08:40 PM
12/15/10 08:40 PM
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Joined: Jan 2003
Posts: 75,005
U.S.S.A.
JohnRR
I Win
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I Win
Joined: Jan 2003
Posts: 75,005
U.S.S.A.
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Quote:
Quote:
If you run the car at all in cool weather or on the street I would leave it open. Cars run better warmer then too cold
If my Chally has Edelbrock Performer (not Performer RPM!) with headers, is 100% street driven in VA where it gets 95F in summer and only occasionally driven in 45F or below in autumn, should I block the crossover or not?
If you are not using the heat well choke thermostat for the choke i would , no matter what those chrysler engineers think .
On the other hand if you have a smog era smallblock and the intake has never been off you are all set as the chrysler engineers designed those engines with a self blocking heat riser port ...
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Re: Felpro valley pan fiasco
[Re: Fury Fan]
#880389
12/15/10 10:10 PM
12/15/10 10:10 PM
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Joined: Nov 2009
Posts: 255
michigan
sturmenater
enthusiast
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enthusiast
Joined: Nov 2009
Posts: 255
michigan
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Quote:
I remember a thread where guys were discussing epoxy, aluminum foil, steel wool, who knows what else, on blocking the crossover.
I wish I could remember who said it, but it was along the lines of
'if you're gonna pack a bunch of stuff down in the crossover port, make sure to put $100 bills in there too, then when it breaks loose and gets down in a cylinder at least you'll have the $$ on-hand to fix it'...
I got feed up ordeing valley pans and getting the wrong one localy the crossover port is hour glass shaped so the epxoy can not fall in and last I checked my exhaust pushes gasses out never sucks in 
But if it does fail I promise you guys will be the first to know
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Re: Felpro valley pan fiasco
[Re: sturmenater]
#880390
12/16/10 01:24 AM
12/16/10 01:24 AM
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Joined: Jan 2003
Posts: 75,005
U.S.S.A.
JohnRR
I Win
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I Win
Joined: Jan 2003
Posts: 75,005
U.S.S.A.
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Quote:
Quote:
I remember a thread where guys were discussing epoxy, aluminum foil, steel wool, who knows what else, on blocking the crossover.
I wish I could remember who said it, but it was along the lines of
'if you're gonna pack a bunch of stuff down in the crossover port, make sure to put $100 bills in there too, then when it breaks loose and gets down in a cylinder at least you'll have the $$ on-hand to fix it'...
I got feed up ordeing valley pans and getting the wrong one localy the crossover port is hour glass shaped so the epxoy can not fall in and last I checked my exhaust pushes gasses out never sucks in
But if it does fail I promise you guys will be the first to know
I would think that if the heat rised is operating properly it's going to PUSH the gases from the restricted passenger side to the unrestricted drivers side .
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And that's the prob as it gets way too hot but I agree w Paul if mileage is a concern (not usually w a 440 
) the heat riser helps and pretty sure that's what's killing mileage on my 318 DD.
:whistling
