Cheaper to convert computer/go carb???
05-30-2005, 09:53 PM
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Staging Lane
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Cheaper to convert computer/go carb??? I am getting ready to install 5.3 L ls1 into my extra frame for my 67 tempest. I have been putting together the cost of fuel injection over the cost of a carb conversion. I still need a computer and need to have my harness converted to wire up. For carb I would only have to buy the intake($700). Any help for cheap fuel injection. -total costs.??
05-30-2005, 11:56 PM
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Staging Lane
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I've bought junkyard PCMs for between $10 and $100. Wait4meperformance sells them bor $120.
You can modify the harness yourself, send yours in to be modified or buy a new one - your choice. Speartech helps a lot of people out on this board and does a lot of harnesses for conversions. John is very knowledgable and easy to talk to.
In addition to the harness mod, you are going to need a fuel pressure regulator and filter and a fuel pump. The easiest and cheapest way for the FPR is the '98 Vette fuel pressure regulator and filter at about $35 from GM Parts Direct. You'll need a 300LPH fuel pump which will set you back about $125. AN fittings and 3/8 aluminum fuel line will run you another $80-100.
If you have the harness modified by wait4meperformance or Speartech, buy a PCM and use the Vette regulator, the price will be close to the $700 you will have in the intake alone. If you modify the harness yourself, use the Vette FPR, a junkyard PCM and a VATS simulator, the price will be about half the carb manifold but a lot more work.
If you go with fuel injection, you will need to modify your fuel tank with a swirl pot, a sump or external acumilator too. If you do it yourself, none of these cost much, but if you hire it done, it can be expensive.
Go with the fuel injection. You will never look back. Hope this helped
You can modify the harness yourself, send yours in to be modified or buy a new one - your choice. Speartech helps a lot of people out on this board and does a lot of harnesses for conversions. John is very knowledgable and easy to talk to.
In addition to the harness mod, you are going to need a fuel pressure regulator and filter and a fuel pump. The easiest and cheapest way for the FPR is the '98 Vette fuel pressure regulator and filter at about $35 from GM Parts Direct. You'll need a 300LPH fuel pump which will set you back about $125. AN fittings and 3/8 aluminum fuel line will run you another $80-100.
If you have the harness modified by wait4meperformance or Speartech, buy a PCM and use the Vette regulator, the price will be close to the $700 you will have in the intake alone. If you modify the harness yourself, use the Vette FPR, a junkyard PCM and a VATS simulator, the price will be about half the carb manifold but a lot more work.
If you go with fuel injection, you will need to modify your fuel tank with a swirl pot, a sump or external acumilator too. If you do it yourself, none of these cost much, but if you hire it done, it can be expensive.
Go with the fuel injection. You will never look back. Hope this helped
