Can I use 60lb injectors in stock fuel rails?
03-01-2009, 11:40 AM
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Can I use 60lb injectors in stock fuel rails? I am new to the LS world and I am going to use a 6.0L truck motor with a LS1 intake for my next turbo build. I am building a steet car and hoping for about 700 rwhp. It looks like I will need the 60lb injectors but I wasn't sure if I could get away with the LS1 fuel rails or would I need to go aftermarket.
Rodney
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03-01-2009, 03:55 PM
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Well, for now I am shooting for around 700 rwhp but I didn't know at what point the rails would become a problem. I wasn't sure how much they would flow to keep up with whatever size injectors.
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03-01-2009, 08:51 PM
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+1 for the FPR on the rails. I have dual Walbros and 60lb injectors, and I'm losing fuel pressure at 5500RPMs on a 650RWHP setup with the stock regulator. Front mount regulator is in the mail. 
03-01-2009, 09:19 PM
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Ok this is what you do..
Search for some 97-98 corvette rails. They had a return system back then. You can buy a breathless performance boost referanced regulator that goes right on the rail. Then get a Lonnies dual pump intank setup. Use your stock purge valve line as the return. Just switch the port on the sender unit in the tank so that the purge line is now the return.
You will be removing the stock intank regulater also at this time. You will also need a plug for the fuel block on the left side toward the rear under the car. This setup should be good for about 800 flywheel hp with 60s.
Search for some 97-98 corvette rails. They had a return system back then. You can buy a breathless performance boost referanced regulator that goes right on the rail. Then get a Lonnies dual pump intank setup. Use your stock purge valve line as the return. Just switch the port on the sender unit in the tank so that the purge line is now the return.
You will be removing the stock intank regulater also at this time. You will also need a plug for the fuel block on the left side toward the rear under the car. This setup should be good for about 800 flywheel hp with 60s.
