LT1-LT4 Modifications 1993-97 Gen II Small Block V8

What fuel/ignition to go with?

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Old Mar 14, 2005 | 11:06 PM
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Default What fuel/ignition to go with?

I am going to put the LE2 heads/cam combo on my car sometime soon and I am getting an idea of other nessecary parts I will need. I talked to Lloyd about a setup and my goal is ~420RWHP and he thought that was a resonable goal to shoot for. On top of the 420HP I want to run some kind of nitrous setup. I was thinking of going with a NX 150 wet kit, many people seem to like NX kits.

What is the capability of the LT1 fuel system (stock)? I know that since I want to run nitrous I will need a new fuel pump, whether it's a intank or inline I don't know. Will an inline pump work fine or should I just go with an intank? Do I need to run a different regulator, what is recommended? And finally, what are stock injectors capable on doing? Mine you, with nitrous I will hopefully be making ~550RWHP and I don't feel like replacing pistions right away

Now for the ignition system. What should I run for an ignition system to get full potential out of this setup (ignition box, coil, wires, plugs)? I really have no idea what would be the best way to go, so I need some helpful suggestions on this part. I don't plan on spinning this thing past 6500RPM and I'm 99% sure the stock opti is capable to do that. But I was thinking just for extra insurance just to go with a new Dynaspark opti.

Am I headed in the right direction?
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Old Mar 15, 2005 | 12:04 PM
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can anyone help me out?
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Old Mar 15, 2005 | 12:23 PM
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Originally Posted by SantaCruz163
I am going to put the LE2 heads/cam combo on my car sometime soon and I am getting an idea of other nessecary parts I will need. I talked to Lloyd about a setup and my goal is ~420RWHP and he thought that was a resonable goal to shoot for. On top of the 420HP I want to run some kind of nitrous setup. I was thinking of going with a NX 150 wet kit, many people seem to like NX kits.

What is the capability of the LT1 fuel system (stock)? I know that since I want to run nitrous I will need a new fuel pump, whether it's a intank or inline I don't know. Will an inline pump work fine or should I just go with an intank? Do I need to run a different regulator, what is recommended? And finally, what are stock injectors capable on doing? Mine you, with nitrous I will hopefully be making ~550RWHP and I don't feel like replacing pistions right away

Now for the ignition system. What should I run for an ignition system to get full potential out of this setup (ignition box, coil, wires, plugs)? I really have no idea what would be the best way to go, so I need some helpful suggestions on this part. I don't plan on spinning this thing past 6500RPM and I'm 99% sure the stock opti is capable to do that. But I was thinking just for extra insurance just to go with a new Dynaspark opti.

Am I headed in the right direction?

Ok I'll try. The motor will be running out of fuel, I believe, as it sits right now with the Lloyd package without nitrous. So going up to a 30 LBS injector would help that out and would be great for the spray. I think the best thing would just be to put the intank pump in cause depending on how many miles u have on the car already the pump may be running a little low on power anyways. Now for ignition you would benefit from all of the above. The stock opti has some problems in the higher RPM range so the Dynaspark will help that, but if it were me and I was going to spend the money anyways y not just step up to a coil over plug situation. This can be debated also (the opti's holding up in the higher RPM range) cause some have problems some dont. I personally had a problem with my first one but spun the 2nd one up to 6800 all day long on spray without a problem. Maybe someone else can help you a little more but that's all I have for now.
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Old Mar 15, 2005 | 06:55 PM
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The stock computer is only good for 7000rpms. The stock ignition with a better coil is fine for most, but since your using nitrous, look into an ignition box that can retard timing.
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