Corvette filter/regulator
 

Where does Chevrolet install the filter/regulator in the cars? I have seen the video done by S&P and they put it back by the gas tank on the conversion they show. Would it not be better if it was located as close to the fuel rail as possible?

No, it is actually better to have it back closer to the tank. Leaves less chance to heat up the return fuel on the way back to the tank.

It might be better for a very first time startup, but that is about it.

Most people put it on the frame rail (or subframe rail) close to the tank. This keeps the lines to and from the FPR short, and you only have one long line, which for most applications can be the stock line, or a new line following the stock run.

I have mine mounted above the Rear End section.. on the Crossmember that support the A-Body Control Arms.

What power levels are these good to?

Well, the ZO6 uses one, and it makes, well lets just say well over 500HP.

I was wondering about forced induction cars.... do most switch out when going to turbo and blower?

Two pumps, two filters!!!

If you review S&P's video, Mark suggests that the failing of a single line system is that it allows the fuel at the engine to heat up and cause vapour lock which is why they modify the LS1 vette fuel systems to switch to a return line. I am inclined to agree with him on principles but if vapour lock was in fact a risk, I can't understand that Chevrolet would risk it in the corvette.

Or any brand new car for that matter. I don't think anything uses a rail style return from the general anymore.
The only issues we ever have is on a completly empty rail. Sometimes the air gets trapped in the back of the fuel rail, but it eventually gets out.

"Vapor lock" happens on the inlet side of a pump. I don't know at what temp gasoline boils at 71psia that you'd see in the rails, but I'm fairly certain it's a lot higher than the temperature you'd see in the rails. And even if you did boil the fuels in the rails, the vapor will push right through the injectors--not "lock". The danger if anything (which is very unlikely, if not impossible) would be a brief lean-out, not "vapor lock".

On the other hand, the boiling point at 14.7psia (ie, in the tank) can be as low as 100F for winter blends. If you are heating the entire tank up by constantly pumping all the fuel through the hot rails and back to the tank, you can boil the fuel in the tank pretty easily.

Some vendors make really nice shiny parts that amuse people who like shiny things. A lot of them are really nice people, and they are a great source for shiny parts for show cars and advice on appearance improvement. They aren't a great source of technical advice or performance parts.

They had to eliminate the return lines because of emissions standards. The fuel coming back from the engine hot and dumping into the tank leads to higher levels of evaporative emissions, so they shortened the return line to keep the fuel that returns to the tank cooler.

regarding S&P's video where can i view this video ?

sorry to hyjack but what changes in the tune from a vaccume ref to athomsphereic(sp?) fuel regulation??

I am using a vette filter/regulator and dont know what to change in the tune?

You need to change your injector slope. It will be a flat line with the manifold vac. reference, and it will have an actual slope when it is not.

I put mine here
http://i2.photobucket.com/albums/y26...ril2008165.jpg
http://i2.photobucket.com/albums/y26...ckjoeSS155.jpg
but I do not like how the stock lines are very close to being pinched. any recommendations about putting it where my stock filter is?
If I get the russel GM/to AN adapter how can I connect that to the existing line? I have a 45 flaring tool but I think AN uses a 33 flare?? Are there any other OE type parts I could look at??
TIA

Maybe an AN to Tube adapter?

http://static.summitracing.com/globa...-2200075_w.jpg
http://store.summitracing.com/partde...5&autoview=sku

is there any reason I should want to buy the filter/regulator from GM instead of Oreilly's?

GM: $75
Oreilly Wix: $42

no, the one I am using i from the parts store.

No real reason, You can even find the AC Delco GF822 for around $45.00 at some discount parts stores. Even eBay sells them.