is it worth it,cause i have intake and exhaust and i hung with a supercharhed LS at the track. i know a supercharged GSR is fast but is a LS worth it or should i just go turbo?

 

Sorry! Can someone move this to FI?

 

turbo or nnnnaaaawwwwwwwzzzzzzzzzzz (howl it out when you say it)

 

the problem with the ls is that the JR blower for the ls is the smaller m42 blower... this for the money doesnt seem worth it to me... unless you retofit a larger blower i suggest turbo cause honestly its close to the same cost.....

 

JRSC isen't worth it that much on the LS, buck for buck your getting more power with any turbo setup then the JRSC..... its not worth the 3 grand to make your car a peppy 6 cylindar....

I followed the JRSC peeps for a while, but in the end went turbo because of the power possibilities and gains.

 

or sell the car and get a diff one.

 

SC LS is weak!

 

Turbo it and run 8psi.

 

Thanks everyone with the info and suggestions. I think for now since i dont have enough for a turbo im just ganna put a lil nitrous on it for a lil while.

 

You said u have i/e and you hung with one doesnt that tell u right there that u shouldnt buy it. Take off and sell your i/e or header or whatever and turbo that baby.

 

on my ls with cat back eaxhust and jrsc we only got like 146/134. very disappointing, except that when we did more work, we got great tq out of it.
it does what it says, it gives you 30-40% more power, but it isn't top end like you'd think.
i did like having over 150 tq from 3-7k in the end.
but the m45 just isn't enough. if all you want is a decent increase, with great reliability, get the blower, it makes it a fun car. if you want fast, go turbo. of course you could aslo dry shot a jrsc and get 47 dyno proven horse from a 25 shot. low end tq, with nice top end... and it makes a very distinct whining noise...

 

supercharged LS

 

For the same price you can get a greddy turbo kit (~2500) and it will put out about 170whp at stock boost, 7 PSI I think. If you go that route you can upgrade down the road with an intercooler, BOV, standalone engine management, etc... and boost higher safely.. You can put down 200+whp with that kit with upgrades and the initial cost would be less than going with a T3/T4 kit such as a revhard stage 2 or drag. You can also piece together a nice turbo kit from kyle@ks-motorsports.com for really good prices, he has a custom turbo kit group buy going on. http://www.ks-motorsports.com will have the custom turbo pricing up within a couple of weeks.

 

If I crank the boost on my LS with a JRSC I can hit 9 PSI no problem. All I have is the fuel pump, 8 lb pulley and boost timing controller.
gmoore

 

greddy kit isnt intercooled. you can find a drag 3 for 2700 with a fat intercooler, chromed piping, and a t3/t4 turbo (wastes the 15g), and say "**** carb laws" and get lots of tickets (if you live in cali).

 

It depends on what you want out of your car,

Most of the responses are considering you only care about straight line performance. The same people responding that a JRSC LS is weak, think that an ITR that gets simmilar/slower 1/4 mile times is fast.

Straight line, yeah turbo is no doubt the better way to go.

Daily driving, AutoX, either a small turbo or a JRSC is a great option. You can get more HP out of an JRSC LS than most think, you can't just bolt it on and expect to go fast. Your whole engine package has to be based around the fact that you have a supercharger, and you are not going NA.

 

agreed

 

You are right as usual.

 

of course I would consider a NA car that runs high 14's FAST, but not a FI that runs the same times after spending over $3k on parts a labor when you can fo a lot faster spending the same amount of money on a turbo kit and still be reliable running 8-9 psi

 

So an NA ITR that runs high 14's is FAST because you didn't spend $3k on parts and labor over a JRSC LS, even though the ITR costs more than 3k over a LS?

And I never knew that how you achive a speed makes a difference weither or not its fast enough. If a van got into the 14's spending 10k on forced induction, I would consider it fast even though it would have been cheaper to get an NA ITR. But your reasoning, everyone on this forum should buy a cheap civic hatch, strip it, drop in a B18C and turbo it, because you can go faster for cheaper than a turbo integra.

Anyways, you miss the whole point of my post. I think everyone knows that you can get a turbo kit for the same money, and get better 1/4 mile times. That is not a new relevation to this thread. The point is not everyone wants a turbo setup, there are reasons to go for NA or JRSC over turbo. No one seams to bash NA even though you spend even more money for a weaker powerband, and less peak WHP (dollar for dollar).

As far as running 8-9psi reliable with just bolting the kit on? I don't agree. Maybe for awhile the engine will be fine, but have you ever looked into how long a stock B18 engine with 8-9psi goes with out rebuilds? To run 8-9psi reliable you still need to have it properly tuned on a dyno.

 

I dont understand why people would even consider buying a s/c when it cost just as much as turbo. Last time i checked the Ls kit was around $2,900 and i spent 3,100 on my kit, nuff said. Direp972 runs low 13's on bfg's u will never do that in a supercharges Ls. He has the most simple setup and it runs like a ****.

I was once supercharged for like 6 weeks, you wonder why i went turbo. My car felt slow and it was on a b20 vtec and it was the m62 blower. I' wouldnt say superchargers completely suck, beause not everyone wants the same results in the end, but unless your getting a used kit for dirt cheap you will regret spending 3k to run low 15's

 

I have seen LS's that run lowish 15's with boltons. If 15whp that gets them from 16.1 to 15.4, then what will another 30whp do?

This is a battle that is not worth fighting for, because no doubt everyone is just going to post "go turbo, you can get 13s yo!".

Keep in mind the team-toilet GSR ran 12's with a JRSC B18C.

engine package, it makes a difference what you have when you are going with a supercharger. You want a large diameter, tapered short ram, a header with short primaries, and a highflow cat/exhaust large enough to move the exhaust gases. From there you still need to tune, which should be done with all forced induction and NA motors alike.

 

a supercharged LS w/ b16a tranny and LSD would KICK *** in an autoX situation.

but for drag racing. SUPERCHARGED LS's SUCK! almost 3k dollars to make ur car have 160whp. screw that.

 

I had a drag gen 3 on my auto LS and I will say for sure that that is NOT a setup for auto cross. A smaller turbo or a JRSC with a boost upgrade pulley would be the answer to me.

 

i have a freind who is sparying a 75 shot on top of his ls jrsc...without the spray i believe he is dynoing at 230 ..with crane cams...anyways its a sweet setup..