5.7 Intake and Fuel Injection - Page 2 - The 1947 - Present Chevrolet & GMC Truck Message Board Network

Bigdav160 · 08-12-2015, 09:13 AM

No, just more reliable. (and $50 less expensive on Amazon)

pwdcougar · 08-14-2015, 08:46 PM

Final report: Engine runs smooth all the emissions tests have run on my cheapo tester and now have a green light. The truck has a lot more power. I need to drive it more so I can check the gas mileage. It will be easy to check. I've recorded every fill up since new in 97. Still an issue with the radiator not holding pressure for more than an hour. New cap and the radiator held pressure for 3 hours using my pressure tester. Maybe a bad new cap? I'll have to check it.

Thanks to everyone who chimed in and helped make the job go smooth!

Paul

pwdcougar · 09-06-2015, 01:55 PM

I've finally gotten a full tank of gas through the truck since doing the fuel injection spider. So far the power is WAY up and the mileage is up 1 or 2 MPG. I'm attributing the small amount of gain in MPG to the fun of having more power.

One issue though. Brand new radiator cap and it is leaking around the top onto the radiator neck. Not sure why the pressure isn't relieved into the overflow tank.

Paul

08-12-2015, 09:13 AM	#26
Bigdav160 Registered User Join Date: Apr 2011 Location: Klein Texas Posts: 3,852	Re: 5.7 Intake and Fuel Injection No, just more reliable. (and $50 less expensive on Amazon) __________________ My Classics: '72 K20 Suburban + '65 Dodge Town Wagon '72 Corvette Roadster +'67 Corvette Roadster '73 Z-28 Camaro '63 Ford SWB Uni Pickup '50 Ford Coupe

08-14-2015, 08:46 PM	#27
pwdcougar Registered User Join Date: Oct 2013 Location: New Jersey Posts: 1,302	Re: 5.7 Intake and Fuel Injection Final report: Engine runs smooth all the emissions tests have run on my cheapo tester and now have a green light. The truck has a lot more power. I need to drive it more so I can check the gas mileage. It will be easy to check. I've recorded every fill up since new in 97. Still an issue with the radiator not holding pressure for more than an hour. New cap and the radiator held pressure for 3 hours using my pressure tester. Maybe a bad new cap? I'll have to check it. Thanks to everyone who chimed in and helped make the job go smooth! Paul __________________ "You know that little thing in your head that keeps you from saying things you shouldn't? Yeah well, I don't have one of those" 1969 Mercury Cougar Standard 4 speed 1969 Mercury Cougar XR7 convertible 1970 4WD Chevrolet Suburban 1997 4WD Chevrolet Silverado Extended Cab Short Bed (purchased new January 1997)

09-06-2015, 01:55 PM	#28
pwdcougar Registered User Join Date: Oct 2013 Location: New Jersey Posts: 1,302	Re: 5.7 Intake and Fuel Injection I've finally gotten a full tank of gas through the truck since doing the fuel injection spider. So far the power is WAY up and the mileage is up 1 or 2 MPG. I'm attributing the small amount of gain in MPG to the fun of having more power. One issue though. Brand new radiator cap and it is leaking around the top onto the radiator neck. Not sure why the pressure isn't relieved into the overflow tank. Paul __________________ "You know that little thing in your head that keeps you from saying things you shouldn't? Yeah well, I don't have one of those" 1969 Mercury Cougar Standard 4 speed 1969 Mercury Cougar XR7 convertible 1970 4WD Chevrolet Suburban 1997 4WD Chevrolet Silverado Extended Cab Short Bed (purchased new January 1997)



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