Just my thoughts on the Saleen SC
11-09-2007, 10:22 AM
#11
3rd Gear Member
Thread Starter
Join Date: Jul 2007
Location: South Carolina
Posts: 921
RE: Just my thoughts on the Saleen SC
ORIGINAL: tim281
Could you see any baffles or butterfly valves whenyou took off the top part of the supercharger? Now you got me wondering what exactly this actuator is controlling inside the supercharger.
Does anyone have any other experience adjusting the bypass valve on their charger?
Could you see any baffles or butterfly valves whenyou took off the top part of the supercharger? Now you got me wondering what exactly this actuator is controlling inside the supercharger.
Does anyone have any other experience adjusting the bypass valve on their charger?
When you take the top of the supercharger all you can see is the intercooler and maybe oil? (I didn't take a real close look at the fluid we were getting tired.) We didn't takethe intercoolerout though. We were hoping to see a lot more.
11-09-2007, 11:40 AM
#12
Banned
Join Date: Apr 2006
Location: Goodyear, AZ
Posts: 1,631
RE: Just my thoughts on the Saleen SC
Ok guys, here is how it works..........
There is a butterfly attached to a shaft (like a carb or t.b.) that extends outside of the blower housing. The dashpot, vacuum valve, whatever you wish to call it moves the shaft open or closed. The first 2 pics show the valve closed / dashpot arm contacting the stop screw.This is the position when engineis off orunder boost..no vacuum. Second pics are valve open / dashpot arm Not contacting stop screw. This is when engine is at idle or cruise...vacuum present.
Turningin the stop screw will make the butterfly close more, turning out ,will open more. I do not recommend, suggest, advise, etc. modifying the setting. There is a good chance that the butterfly (if closed tofar) may bind in the bore. If this happens, under full boost, high rpm, once you let off the throttle, the boost will not bleed off!
This set up may seem cheap, half ****, etc. to many people. BUT, it is a simple yet very effective design. Look at Ford's factory supercharged cars/trucks. They are the same design.
Casey
[IMG]local://upfiles/34215/154E87EB5FC74C5BA7C30CE99DE7B798.jpg[/IMG]
[IMG]local://upfiles/34215/8F53C3398B1D4CF0AAD96AC84C9203D6.jpg[/IMG]
[IMG]local://upfiles/34215/3DA3B73BCB2642E38827FF13FF78EB3E.jpg[/IMG]
[IMG]local://upfiles/34215/DBC682C50DB0479499A52DD6982926F4.jpg[/IMG]
There is a butterfly attached to a shaft (like a carb or t.b.) that extends outside of the blower housing. The dashpot, vacuum valve, whatever you wish to call it moves the shaft open or closed. The first 2 pics show the valve closed / dashpot arm contacting the stop screw.This is the position when engineis off orunder boost..no vacuum. Second pics are valve open / dashpot arm Not contacting stop screw. This is when engine is at idle or cruise...vacuum present.
Turningin the stop screw will make the butterfly close more, turning out ,will open more. I do not recommend, suggest, advise, etc. modifying the setting. There is a good chance that the butterfly (if closed tofar) may bind in the bore. If this happens, under full boost, high rpm, once you let off the throttle, the boost will not bleed off!
This set up may seem cheap, half ****, etc. to many people. BUT, it is a simple yet very effective design. Look at Ford's factory supercharged cars/trucks. They are the same design.
Casey
[IMG]local://upfiles/34215/154E87EB5FC74C5BA7C30CE99DE7B798.jpg[/IMG]
[IMG]local://upfiles/34215/8F53C3398B1D4CF0AAD96AC84C9203D6.jpg[/IMG]
[IMG]local://upfiles/34215/3DA3B73BCB2642E38827FF13FF78EB3E.jpg[/IMG]
[IMG]local://upfiles/34215/DBC682C50DB0479499A52DD6982926F4.jpg[/IMG]
11-10-2007, 12:08 PM
#13
1st Gear Member
Join Date: Mar 2006
Location:
Posts: 60
RE: Just my thoughts on the Saleen SC
Casey you rock! That is a great explaination and it makes total sense. I wish Saleen would use something a bit morepermenant when they set the position of the nut on the screw...perhaps somewashers between the head and bolt, tack weld it,orsomething.....because a small plop of wax is very easy to move around. I knowmine moved a few timeswhen I installed the screw, but Ithink I was able to get it back to its orignal position.
11-12-2007, 07:04 AM
#18
3rd Gear Member
Thread Starter
Join Date: Jul 2007
Location: South Carolina
Posts: 921
RE: Just my thoughts on the Saleen SC
ORIGINAL: HaneyMotorsport.Com
Ok guys, here is how it works..........
There is a butterfly attached to a shaft (like a carb or t.b.) that extends outside of the blower housing. The dashpot, vacuum valve, whatever you wish to call it moves the shaft open or closed. The first 2 pics show the valve closed / dashpot arm contacting the stop screw.This is the position when engineis off orunder boost..no vacuum. Second pics are valve open / dashpot arm Not contacting stop screw. This is when engine is at idle or cruise...vacuum present.
Turningin the stop screw will make the butterfly close more, turning out ,will open more. I do not recommend, suggest, advise, etc. modifying the setting. There is a good chance that the butterfly (if closed tofar) may bind in the bore. If this happens, under full boost, high rpm, once you let off the throttle, the boost will not bleed off!
This set up may seem cheap, half ****, etc. to many people. BUT, it is a simple yet very effective design. Look at Ford's factory supercharged cars/trucks. They are the same design.
Casey
[IMG]local://upfiles/34215/154E87EB5FC74C5BA7C30CE99DE7B798.jpg[/IMG]
[IMG]local://upfiles/34215/8F53C3398B1D4CF0AAD96AC84C9203D6.jpg[/IMG]
[IMG]local://upfiles/34215/3DA3B73BCB2642E38827FF13FF78EB3E.jpg[/IMG]
[IMG]local://upfiles/34215/DBC682C50DB0479499A52DD6982926F4.jpg[/IMG]
Ok guys, here is how it works..........
There is a butterfly attached to a shaft (like a carb or t.b.) that extends outside of the blower housing. The dashpot, vacuum valve, whatever you wish to call it moves the shaft open or closed. The first 2 pics show the valve closed / dashpot arm contacting the stop screw.This is the position when engineis off orunder boost..no vacuum. Second pics are valve open / dashpot arm Not contacting stop screw. This is when engine is at idle or cruise...vacuum present.
Turningin the stop screw will make the butterfly close more, turning out ,will open more. I do not recommend, suggest, advise, etc. modifying the setting. There is a good chance that the butterfly (if closed tofar) may bind in the bore. If this happens, under full boost, high rpm, once you let off the throttle, the boost will not bleed off!
This set up may seem cheap, half ****, etc. to many people. BUT, it is a simple yet very effective design. Look at Ford's factory supercharged cars/trucks. They are the same design.
Casey
[IMG]local://upfiles/34215/154E87EB5FC74C5BA7C30CE99DE7B798.jpg[/IMG]
[IMG]local://upfiles/34215/8F53C3398B1D4CF0AAD96AC84C9203D6.jpg[/IMG]
[IMG]local://upfiles/34215/3DA3B73BCB2642E38827FF13FF78EB3E.jpg[/IMG]
[IMG]local://upfiles/34215/DBC682C50DB0479499A52DD6982926F4.jpg[/IMG]
11-12-2007, 10:47 AM
#19
2nd Gear Member
Join Date: Feb 2007
Location:
Posts: 364
RE: Just my thoughts on the Saleen SC
06saleen, check under your hood, yours are black factory. they really arent needed until you get some boost, and even then, its rare to need them.
some do, some dont, but in the end, its a $400 for about 3-5 hp.
some do, some dont, but in the end, its a $400 for about 3-5 hp.