Looking for 600+whp with ls1
This is true however it really only applies to forced induction and this is the decision I have to make is whether the extra cash and effort is worth it when I could possibly achieve the same results NA with a bit of juice. Obviously I wouldn't go around triggering the nitrous on the street all the time either.
hehe, i say save alot of your money and just do heads, cam, and nitrous. i have a 1992 ls1 coupe, and ive seen swaps out there running low 10's with just 450rwhp. so if you did the heads and cam you could run 10's n/a and with a nice 125-150 shot you would easily be in the 9's. who cares what it puts down on the dyno.
If you just want the 600+ rwhp on tap some of the time then id say go with a higher compression build. Im not sure though if it would be any "safer" spraying your way to 600+ rwhp on a stock block as opposed to going with some form of FI but a larger cam and a set of AFR 205's, fast 90/90 (or 92/92), 1 3/4 or 1 7/8 headers, ory/catback or x-pipe/true duals, underdrive pulley, etc, etc should get you to to the 475 rwhp range. They spray say a 100 shot on top of that and you would be there. Again not sure if this would live longer since you would not be spraying all the time but that could potentially be an option?
hehe, i say save alot of your money and just do heads, cam, and nitrous. i have a 1992 ls1 coupe, and ive seen swaps out there running low 10's with just 450rwhp. so if you did the heads and cam you could run 10's n/a and with a nice 125-150 shot you would easily be in the 9's. who cares what it puts down on the dyno.
Well if your going to build the shortblock then you could spray your way over 600rwhp easily. Plus you wouldnt have to worry about building a turbo kit or fabbing up the cold side for a SC kit. Callies/compstar rods, arp rod bolts, stock crank, and diamond/mahle/wiseco pistons with nitrous rings could handle a hefty shot, say 175-200hp range. Car would be nasty with a nice direct port setup!
Last edited by 98Z28MASS; Dec 4, 2008 at 11:10 AM.
Well if your going to build the shortblock then you could spray your way over 600rwhp easily. Plus you wouldnt have to worry about building a turbo kit or fabbing up the cold side for a SC kit. Callies/compstar rods, arp rod bolts, stock crank, and diamond/mahle/wiseco pistons with nitrous rings could handle a hefty shot, say 175-200hp range. Car would be nasty with a nice direct port setup!
Now excuse the ignorance but what are nitrous rings? Are these rings made of different material or gap differently? I'm just use to buying wiseco rings and gapping them myself for the appropriate application.
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Registered User
Joined: Dec 2008
Posts: 12
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From: detroit area
i'm doing about the same thing in my 240sx right now. starting with a 5.3L lm7 (iron block) 317 heads, ls1 pistons. but im only hoping to hover around 450 hp. idk how much experiance you have with 240's but they dont like to hook up with the stock style suspension. with my old setup (355 4bolt, vortec heads, edelbrock performer, mild cam) the car would smoke 255's at a sixty role. and that was a stock th350 with the 99$ jegs 3000 stall converter. difference being i and performance tires not drag radial but the car was an animal.
just sharing my experiance... be prepared to look into an 8.8 swap.
just sharing my experiance... be prepared to look into an 8.8 swap.
Yeah this is looking like a better option. If I can get the car light enough (sub 2500 lbs) then I might be able to reach my goal with a relatively small shot.
Now excuse the ignorance but what are nitrous rings? Are these rings made of different material or gap differently? I'm just use to buying wiseco rings and gapping them myself for the appropriate application.
Now excuse the ignorance but what are nitrous rings? Are these rings made of different material or gap differently? I'm just use to buying wiseco rings and gapping them myself for the appropriate application.
i'm doing about the same thing in my 240sx right now. starting with a 5.3L lm7 (iron block) 317 heads, ls1 pistons. but im only hoping to hover around 450 hp. idk how much experiance you have with 240's but they dont like to hook up with the stock style suspension. with my old setup (355 4bolt, vortec heads, edelbrock performer, mild cam) the car would smoke 255's at a sixty role. and that was a stock th350 with the 99$ jegs 3000 stall converter. difference being i and performance tires not drag radial but the car was an animal.
just sharing my experiance... be prepared to look into an 8.8 swap.
just sharing my experiance... be prepared to look into an 8.8 swap.
Registered User
Joined: Dec 2008
Posts: 12
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From: detroit area
im going to run 26"305's (got em used cheap... ) but also planning on mini tubbing.
there is a fastback out here locally fully tubbed with an 8.8... over built in my opinion but to each his own. will try and get ya some pics. i'm trying to keep my trunk at least partially.
there is a fastback out here locally fully tubbed with an 8.8... over built in my opinion but to each his own. will try and get ya some pics. i'm trying to keep my trunk at least partially.
sorry i meant fd's and ls1 swaps in general. i had an FD but sold it because the car needed alot of work and would not fit my budget. i have a 1992 coupe with a stock ls1. IF you could get ur car to hook with 450rwhp a 2500 lbs car SHOULD run mid to low 10's but we all know its a pain in the *** getting traction in these cars cause their so damn light. get some 15x10 and run some MT ET streets you will hook with those for sure just make sure ur drivetrain can handle it.
Maggie's fall off up top...and all though great for street, and everyday
reliability, they aren't capable of adding power down the road like the other two
FI options (turbos being the best choice). also, they're not as efficient and won't make the hp numbers per lb of boost as a turbo or centri.
reliability, they aren't capable of adding power down the road like the other two
FI options (turbos being the best choice). also, they're not as efficient and won't make the hp numbers per lb of boost as a turbo or centri.
it has nothing to do with it fitting under the hood or not. it has to do with the blower being too small to support over 600rwhp. you also dont have to worry about heat soak with the centri supercharger or a turbo... maggies heat soak like a bitch.
If you're basing your hp numbers required, off of the drag times you see here on LS1tech you need to realize that the 240sx is 600 lbs lighter than an f-body stock. Which is generally good for more than half a second in the quarter mile with the same hp. Just some food for thought.
