i had a 240sx before it was turbo..how much can the lt1 hold with everything stock..i want to turbo it or what do i have to do to it before i turbo it..anyplaces sell kits?

 

not looking to run a 10sec car just want some boost..be in the 12's

 

12s in a lt1 is not a far cry no matter which path you take.

Stock internals, if its not super high mile and still has good compression most people will say @ 5psi is safe. Now remeber the volume of air at 5psi in a 350 is way more than the volume of air in a 240sx at 5psi.

Intercooled and perfect tuning people have run @ 10psi.

Either one is a time bomb, but the first should last way longer than the second.

All this being said, 5 psi will get you into the 12s pretty easy.

All the other info is here you just need to search for it. If you know turbos its easy, if not then dont get in a hurry. You have lots of reading to do.

 

it has 90,000 miles on its very clean running car..now would i be better off putting a 75-100 shot on my car..and save the trouble and the money

 

You can be in the 12's and be boosted with the stock motor, but it won't be cost effective, nor will it be reliable. If you did all the supporting mods (fuel system, intercooler, methanol injection, tune ect.) you could run a small amount of boost to get you to that power level to hit the 12's. However, for MUCH less money, you could get your LT1 into the 12's NA. You probably could hit the 12's running just full bolt ons, and some slicks, just leaving the motor alone. Or you could do it easily with a decent cam, and heads package, along with a few bolt ons. Either way, its not hard to get an LT1 to the 12's, but spending all the $ needed on a Turbo, and then only being able to only run minimal amounts of boost without it grenading the motor, really isn't a cost effective idea IMO.

 

well i buit my old kit last time on my 240.i would rather buy i kit of my car this time..any places

 

There's only a few of them out there. Speed Inc is the only company that I can think of off the top of my head that offer's Turbo kits. Again, most kits run $7,000+. If all you are looking at is to get to the 12's, this may not be the best way. Even with going with a Turbo, the stock bottom end will only take so much for so long before it goes. 5 #'s of boost with all the proper supporting mods will probably hold up for a while, but eventually, you will be looking at a motor rebuild. It may last 25,000 miles, or it may only last 1500 miles. The point I am making is that the high CR non forged stock LT1 is not made to handle boost. If you run a minimal amount through it, you'll make it longer than running a marginal amount through it, but even then, you are rolling the dice, and there's no garuntee it will hold up.

If you are 100% sold on doing it anyway, try a search on places for Turbo's, or call Speed Inc. Good luck man.

 

but what about 100shot..can my motor take that.i have head work done..i have some bolt on's

 

Head work, and bolt ons won't make the motor any stronger to hold up to boost or juice. If you retard your timing, and again have all the supporting mods such as a good fuel pump, injectors, ignition, tune, ect., then you will be in about the same boat as running a small amount of boost in the sense that more than likely, eventually you will need to do a rebuild, as the high CR motor, just wasn't built to take boost or spray from the factory.

Now, in the sense of cost effectiveness, spray would be an ideal inexpensive way to go. Most kits are under $1,000 and will give you plenty of power to reach the 12's with probably your existing mods. If you were to spray say a 50 or 75 shot with all the supporting mods, then you'll probably hold up for quite a while, but again, its going to put wear on your motor that will eventually lead you to a rebuild.

When it comes down to it, the only way to know for sure that your motor will hold up completly to spray or boost, would be to change the pistons to a lower CR, and at least go with some ARP bolts. But, then again that starts to get into the more expensive route. This is a big reason most people don't have Turbo's and Superchargers on their cars. The sheer cost of building a motor to withstand decent amount of boost (or spray) can cost $8,000+ depending on what quality of parts you want to use. Take that cost and double it on the Supercharger kit, or Turbo kit, not to mention the supporting mods, and the average reliable blower/Turbo car (not including the cost of the car) can run $20,000+.

 

well that suxs..want to help me rob a bank,lol,j/k..

 

Going fast always comes down to how much money you spend. The more money, the faster more reliably you can go.

If all you want is 12's reliably, just go with a decent sized cam, and a good tune. If you already have a decent set of heads, and some bolt ons, you should be really close if you aren't there already. That won't be that much money.

 

ok thanks man

 

Stockish lt1s love spray, but it has its dangers too. I ran 150 shot with full exhaust forever and my car loved it. I put a cam in and spun 2 rod bearings shortly after.

12s are not a hard target for an lt1. Cheapest way is a cam and traction.

 

thanks thanks,what size cam should i go with..if i get a cam i have to do work to the heads that will fit the cam right or wrong?any kits?

 

Wrong. You can use any cam with pretty much any head combo, they don't have to be made for each other. I would go with a big nasty cam like a CC306, or a GM847. Those are proven power making cams that sound awesome. Back in the day, my Z had a CC306 and I loved it. You might want to get a set of gears though if you go with a cam that is around the size of these though.