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- - Pace performance fitech fuel injection (https://67-72chevytrucks.com/vboard/showthread.php?t=688342)

Re: Pace performance fitech fuel injection

Quote:

Originally Posted by TA1968 (Post 7447114)

This is to Big Kev-O what vented fuel cap did you go with? I'm not sure you mentioned it or I might have read over it.

Sorry I have no clue. All I know is my tank does not have a vent line so I think it is a early year 67-68 tank. I assume the cap is vented. The cap that is on the truck has a lock so I think it may be aftermarket. I dont know much about the different fuel tanks or caps. I need a replacement but I am not quite sure what to order.

Re: Pace performance fitech fuel injection

man after reading this ..yall got me fired up...gonna start doin my research now..

Re: Pace performance fitech fuel injection

they are also coming out with a multiport setup, the only info I could get out of them on it was it wouldn't work with my mercruiser efi tunel ram so i'm going to assume you would still have to use their throttle body

Re: Pace performance fitech fuel injection

Quote:

Originally Posted by Lattimer (Post 7422738)

No, I usually have a very slight vacuum. Mine is a correct aftermarket vented cap for 1970 and earlier trucks. I had to modify the seal quite a bit to get it not to leak gas on corners, but now it works well.

Question, how did you modify your cap so as not to spill on corners. I cannot get my jot to leak.
ty

Re: Pace performance fitech fuel injection

Quote:

Originally Posted by empi1776 (Post 7562611)

Question, how did you modify your cap so as not to spill on corners. I cannot get my jot to leak.
ty

Step one, get a cap with a vent that works correctly. I bought 3, 2 from Brothers and 1 from LMC. 1 of the Brothers caps worked. The blue part in the center is the vent. If you try to blow through it it shouldn't let air through. Not recommended on a used cap...LOL. http://i1174.photobucket.com/albums/...psg932zz9b.jpg

http://i1174.photobucket.com/albums/...psiapkkejq.jpg

Step 2, buy an O-ring kit. I got mine from Harbor Freight. It has a variety of sizes.

Step 3, add o-rings. I put one around the center part of the cap against the gasket, and I stacked several behind the gasket. This adds pressure to the gasket and helps it seal against the tank neck. My o-rings are starting to fail, they are about 2 years old now.

http://i1174.photobucket.com/albums/...psfl2ihqjr.jpg

http://i1174.photobucket.com/albums/...psfl2ihqjr.jpg

The cap is hard to turn like this, but I have had zero leaks even with a full tank in a hard right turn.

Re: Pace performance fitech fuel injection

Just a note - some orings are not gas friendly especially e10.

Re: Pace performance fitech fuel injection

Quote:

Originally Posted by lutronjim (Post 7563983)

Just a note - some orings are not gas friendly especially e10.

I think these are Buna. So far they are surviving ok. And they are cheap, so when they get too bad I will just replace them.