Ls1 power
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Teching In
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Ls1 power Hi there i plan to put a ls1 in my 280zx. What kinda power can i get out if it. I read on a few other forms that its hard to get power out of them. It comes witb around 350 horses. And that 500 is a big leep and hard to get. How hard is it to get good power out of these engines.
Yes they come with 350 crank hp and 500 crank hp isn't a leap as long as you don't mind spending the money. It will be easily attainable with a nice set of heads, decent cam, and a fast intake. That will put you over your 500 at the crank, now if you meant 500 at the wheels, then it will be much harder to achieve, but has been done.
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Thread Starter
Teching In
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Yeah best over all. And the car is a street dag car. It will be my dail when done but i will race it all time i have a heavy foot and i love to go fast even when im not racing. Oh and no nitrous, iv heard a tun of bad storries about that stuff.
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Staging Lane
Joined: Mar 2014
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Ls1 power I use nitrous and daily my car. No issues here. Still able to squeeze a 6.80 1/8 out of her on motor on a good day. Everyone has something bad to say about anything. Do anything RIGHT and there will be no problems. Nitrous is all about tuning and supporting mods. GET SOME...
Not saying it's impossible to put 500 to the ground N/A, but it's expensive. Ask me how I know. But it is well with the fun you plan on having.
Not saying it's impossible to put 500 to the ground N/A, but it's expensive. Ask me how I know. But it is well with the fun you plan on having.
On The Tree
Joined: Dec 2011
Posts: 118
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From: Colorado Springs, CO
Maximum horsepower can be calculated using the following equation:
HP = (Volumetric Efficiency (VE) * Displacement * RPM) / (9411 * Brake Specific Fuel Consumption (BSFC))
So, with the stock LS1 displacement of 349.61 ci, using an example peak HP RPM of 5500. Assuming 100% VE (difficult but possible) and a BSFC of .45 (good for most N/A cars) we plug in the numbers. HP = (1 * 349.61 * 5500) / (9411 * .45) and we get 454.04 crank HP. This number is a little low when looking at a H/C car so lets move the peak HP RPM to 6700 and we get 553.11 HP. now lets keep the RPM at 6700 and make this a 383 stroker motor with a 3.904 bore and 4.000 stroke. Exact displacement is 383.05 ci. This gives us a new number of 606.01 peak HP.
Basically, the peak N/A power of a motor will be based on displacement and peak HP RPM which is determined by the cam, heads, pistons, valves, and probably a lot of other stuff that I'm leaving out. The best bet is to do your research and figure out your best way to increase the air flow (intake and exhaust side) to increase your VE. I hope this helped and didn't just muddy the waters for you.
HP = (Volumetric Efficiency (VE) * Displacement * RPM) / (9411 * Brake Specific Fuel Consumption (BSFC))
So, with the stock LS1 displacement of 349.61 ci, using an example peak HP RPM of 5500. Assuming 100% VE (difficult but possible) and a BSFC of .45 (good for most N/A cars) we plug in the numbers. HP = (1 * 349.61 * 5500) / (9411 * .45) and we get 454.04 crank HP. This number is a little low when looking at a H/C car so lets move the peak HP RPM to 6700 and we get 553.11 HP. now lets keep the RPM at 6700 and make this a 383 stroker motor with a 3.904 bore and 4.000 stroke. Exact displacement is 383.05 ci. This gives us a new number of 606.01 peak HP.
Basically, the peak N/A power of a motor will be based on displacement and peak HP RPM which is determined by the cam, heads, pistons, valves, and probably a lot of other stuff that I'm leaving out. The best bet is to do your research and figure out your best way to increase the air flow (intake and exhaust side) to increase your VE. I hope this helped and didn't just muddy the waters for you.
Thread Starter
Teching In
Joined: Dec 2015
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Well i plan to put a stock engine in my zx for now. And get another on a stand and build it. I plan to leave it stock bore, but put dome tops in it. With h beam rods and the best bearings miney can buy for it. I plan to get ls6 heads ported and bigger valves put in if i can. Add some roller rockers and roller lifters. Duel titanium springs. And monster cam put in it. Ill have it balanced and blueprinted then put it togeather. But whats the best intake to put on it?
Maximum horsepower can be calculated using the following equation:
HP = (Volumetric Efficiency (VE) * Displacement * RPM) / (9411 * Brake Specific Fuel Consumption (BSFC))
So, with the stock LS1 displacement of 349.61 ci, using an example peak HP RPM of 5500. Assuming 100% VE (difficult but possible) and a BSFC of .45 (good for most N/A cars) we plug in the numbers. HP = (1 * 349.61 * 5500) / (9411 * .45) and we get 454.04 crank HP. This number is a little low when looking at a H/C car so lets move the peak HP RPM to 6700 and we get 553.11 HP. now lets keep the RPM at 6700 and make this a 383 stroker motor with a 3.904 bore and 4.000 stroke. Exact displacement is 383.05 ci. This gives us a new number of 606.01 peak HP.
Basically, the peak N/A power of a motor will be based on displacement and peak HP RPM which is determined by the cam, heads, pistons, valves, and probably a lot of other stuff that I'm leaving out. The best bet is to do your research and figure out your best way to increase the air flow (intake and exhaust side) to increase your VE. I hope this helped and didn't just muddy the waters for you.
HP = (Volumetric Efficiency (VE) * Displacement * RPM) / (9411 * Brake Specific Fuel Consumption (BSFC))
So, with the stock LS1 displacement of 349.61 ci, using an example peak HP RPM of 5500. Assuming 100% VE (difficult but possible) and a BSFC of .45 (good for most N/A cars) we plug in the numbers. HP = (1 * 349.61 * 5500) / (9411 * .45) and we get 454.04 crank HP. This number is a little low when looking at a H/C car so lets move the peak HP RPM to 6700 and we get 553.11 HP. now lets keep the RPM at 6700 and make this a 383 stroker motor with a 3.904 bore and 4.000 stroke. Exact displacement is 383.05 ci. This gives us a new number of 606.01 peak HP.
Basically, the peak N/A power of a motor will be based on displacement and peak HP RPM which is determined by the cam, heads, pistons, valves, and probably a lot of other stuff that I'm leaving out. The best bet is to do your research and figure out your best way to increase the air flow (intake and exhaust side) to increase your VE. I hope this helped and didn't just muddy the waters for you.
Lol, ok...that may have been a stretch. I'd just call a vendor on here man, tell them exactly what you are doing and what your goals are. They will do the rest and are more than happy to help you. They will explain everything to you in detail about the setup they recommend and about what you can expect out of it.
Your goal of 500 at the crank hp isn't going to be that difficult. When I was "can only" according to the conversion chart everyone goes by, it was around 468hp at the crank (could be different in actual results obviously). That was with stock 241 heads and stock ls6 intake, tsp 1 7/8" long tubes, tsp or y pipe, through borla exhaust. If you get a decent set of heads and a fast intake, you'll easily get 500 at the crank and I'd get an electric cutout, I wished I had gotten one a long time ago.
Most people turbo or procharge theirs. If you turbo it I'd get ahold of John from Huron speed, he's on this site and is awesome to deal with. Probably the best customer service I've had, tbh. His kits come with everything you'll need for the turbo. Only thing I had to get was a map sensor, pusher fans, and the odds and ends to complete it. But you'll get the fueling and everything you need. It's a complete bolt on kit, no fabrication.
That's the route I'd go if I were you. That way later on if you forge the motor, all you have to do is turn the boost controller up and you have more power. Trust me, there's never a point where you'll think it's enough power.
What rear end and transmissions do you have?
Thread Starter
Teching In
Joined: Dec 2015
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Well i have a 1980 280zx this is going in. It has the r200 rear end it can handle up to around 600 horses, Or so iv been told. And i plan to run i 6 speed trans. And i thought about a turbo kit. But i like the way a top mount supercharger looks. Now like i said i plan to biuld a engine on a stand. So what ever i do weter just go strait engine or a turbo or supercharger. Ill build a good lower end Ether way.
On The Tree
Joined: Dec 2011
Posts: 118
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From: Colorado Springs, CO
it made it muddy for me lol....it made me feel like I was back in school doing those retarted "If Jimmi has 16 apples, Lori takes 3, shoves them up her pooper and runs 6mph for 14 min, how much applesauce will she have when she's finished?" I thought an LS1 was a 346ci?
Lol, ok...that may have been a stretch. I'd just call a vendor on here man, tell them exactly what you are doing and what your goals are. They will do the rest and are more than happy to help you. They will explain everything to you in detail about the setup they recommend and about what you can expect out of it.
Your goal of 500 at the crank hp isn't going to be that difficult. When I was "can only" according to the conversion chart everyone goes by, it was around 468hp at the crank (could be different in actual results obviously). That was with stock 241 heads and stock ls6 intake, tsp 1 7/8" long tubes, tsp or y pipe, through borla exhaust. If you get a decent set of heads and a fast intake, you'll easily get 500 at the crank and I'd get an electric cutout, I wished I had gotten one a long time ago.
Lol, ok...that may have been a stretch. I'd just call a vendor on here man, tell them exactly what you are doing and what your goals are. They will do the rest and are more than happy to help you. They will explain everything to you in detail about the setup they recommend and about what you can expect out of it.
Your goal of 500 at the crank hp isn't going to be that difficult. When I was "can only" according to the conversion chart everyone goes by, it was around 468hp at the crank (could be different in actual results obviously). That was with stock 241 heads and stock ls6 intake, tsp 1 7/8" long tubes, tsp or y pipe, through borla exhaust. If you get a decent set of heads and a fast intake, you'll easily get 500 at the crank and I'd get an electric cutout, I wished I had gotten one a long time ago.