Numba20

iTrader: (1)

i seen a vette the other day on a social media that had a turbo, but was gear driven from a crank acc pulley. couldn't see an intercooler on the car, just the turbo and oil feed lines. so that got me thinking, i was always dead set on a TVS2300, but if i can get 15-17 psi on the upper (3k-7k) RPM from a d1sc style blower i wouldn't be against it.

i don't know near as much about FI, as i do all other aspects. so sorry for any dumb questions, ect.

i am planning a build of a LQ4 or LQ9 with 408 tsp rotating assembly, heads i haven't quite pinpointed which to get, but thinking FI, id want lower compression i would assume (i was looking into some 237cc head from PRC). cam will be custom ground, but since i haven't got all the specific numbers on anything else besides bottom end, all i know is not too much lift not too much duration as the turbo/supercharger wouldn't like that.

a TVS2300 will run me upwards of $7500, i figured, surely i can find an adequate alternative that will be cheaper. I'm open to anything besides anything that involves cutting on my exhuast.

so my thought was, get around an 88mm turbo, buy a pulley, and do some metal fab on the prop shaft. some math would go into this of corse. i might have to get a gear box, as the serp belt won't spin fast enough for me to get adequate boost. but i haven't looked at the number yet so i hadn't ruled out the possibility of it working with a very small pulley. idk about the numbers, would and 88mm be the right size for the boost i want? and i shouldn't have to worry about not being able to spool with a bigger turbo bc of the fact its spline or belt driven right?

get the turbo, oil lines, (ill use my wiper fluid reservoir and a small aftermarket pump to feed the oil rather than tapping into my crankcase.) a BOV, a waste gate, and some tubing and be ready to throw it on for under $1000.

you guys think i would need to intercool it? its not a strip track car, not a DD either, just working on making it a trailer queen that i can take out on a sunny sunday, or bust a cobras *** on friday nights with.

SPRAYED 01

iTrader: (22)

What? Build a blower out of a turbo? Just get a blower. And no way you are doing this for $1000. Im going to say you have about a year of reading before you attempt anything

a-low

iTrader: (26)

I remember seeing a turbo to supercharger conversion in a import magazine
I while ago it was a bracket and some sort pulley adaptor thingy. Did you search Google
yet?

The Alchemist

iTrader: (19)

I hate to say it, but going FI, there is no cheap way to do it. Granted, there are ways to spend less money, but in the end, it's not going to be cheap.

The least expensive way to do it somewhat reliably, is to find a kit that someone is selling, which happens quite frequently, and go that route. You can also buy the items individually, and save some money there.

In the end, cheap, fast, reliable, pick 2 of the three.

stevieturbo

If you want cheap. Go down the "sloppy mechanics" route. At least the fabrication there can be cheap.

DIY a turbo install with a chinese turbo.

There may be many things wrong with the approach, but you certainly cant argue that some of the end goals they achieve are very impressive.

And great value for money.

You havent a hope of building a supercharger for the money you mention let alone a functioning and reliable kit.
Superchargers themselves are high precision units so no way of doing that on the cheap.

Turbo installs can be done much cheaper.

Brian Hoss

I say go for it! Just like you outlined. And please please have someone video it and post the destruction pictures! Sounds entertaining!

Exidous

iTrader: (11)

Look on ebay. There are plenty of mustang blowers on there that you could try to modify to get to fit. I've seen a ton up there for <$1000 many around $500. Would it be easy, probably not but it would be fun.

There are M112's up there all the time. A TVS2300 is a drastically more efficient charger but the price shows it.

Numba20

iTrader: (1)

stumbled upon the whipple w200ax today. its got the maggies whipped lol. capable of 20lbs of boost! install kit comes in at a hair under $5500! sorry if this is old news, but I'm just now finding it. so I'm excited. they make a w140ax, which i would be fine with, but i don't think it fits my motor. said 07-10 truck with the 4.8, 5.3, 6.0, and 6.2. i don't know anything newer than the 06 GTO as far as factory options in drivetrain and if the motors have been differentiated. but still, for the w200ax thats 2k better than what i had previously found, and that sc should be a much better system.but I'm still weighing out options, man i love twin screws, i do thoroughly enjoy pointing to something and saying "i built that" though.

silent_soul

iTrader: (2)

I looked at doing a remote mount supercharger. I looked at it alot actually and found a few builds.

Pocket I believe is the username that did it in a thirdgen using a M122 or GT500 supercharger.

You could do it around 2-3K in parts but you'd need to be able to tune it.

I planned on going this route but no local tuners I talked to were willing to mess with it. So I cant do it as I couldnt tune it.

You can pick up the supercharger for 500-700 bucks, fab up a mounting plate run the piping upfront for an intercooler and basically have a very large centrifugal supercharger that wont exactly be pretty.

You would have to add a custom cowl. Also contend with endless waves of no's and haters cause its very unusual.

Plus is that with the new camaro's you can get a 12 rib supercharger pulley for your engine(big issue with pockets build was slippage at 8rib pulley)

so ya there is that.

edit:
Thread for info more info on thirdgen.org if your interested
https://ls1tech.com/forums/forced-in...t-part-ii.html

rotary1307cc

iTrader: (5)

Hall of fame thread

JAX04

iTrader: (17)

Win...

JAX04

iTrader: (17)

To funny lol

Bimmerdude

iTrader: (1)

Thank you for posting this!

I'm new to LSx FI but not FI, and not to cars, and this is a rarely seen post full of honesty and good advice.

OP: Given the information in your post I don't think you are an idiot, but I don't think you have read enough on the engineering involved with any of the components you are referring to.

Example - a TVS2300 is NOT a twin screw. http://auto.howstuffworks.com/supercharger3.htm

It is a twin rotor roots type supercharger - air goes around the outside of the rotors instead of through the center - way less efficient, still awesome, still a positive displacement supercharger.

LS motors seem to respond fine with even cheap or poorly matched size turbo chargers, so in my case I'm thinking that two small T3 based turbos maybe Garrett maybe ebay...

In your case a good TVS1900 kit would probably be fine, especially if you can find a used one.

RacerXLs1

iTrader: (14)

Lol!!!!

MUSTANGBRKR02

iTrader: (91)

In my opinion if you are asking silly questions about basic FI or fabrication or how it works then you probably shouldn't be taking on this task. As far as tuning goes if you didn't do it because you couldn't pay anyone to tune it then why not buy the program and do it yourself?

I also wouldn't spend 2-3k on a unknown fab or attempt for something different if you can buy a used D1 kit for 3-4k.

HexenLord

You sound like you're diving into a trap head first.

You don't seem to have researched all possible options, outputs, and price. Personally, I think superchargers are extremely high priced. They do have obvious benefits and are preferred by many, but if you're going to be spending $6000 or more you need to weigh all options.

For example, I'll sell you an On3 76mm, with their 44mm wastegate and 50mm blow off valve for $600 + shipping. That's over $100 less than it cost me, and they're all brand new. I've disassembled them to make sure there are no flaws. It'll make 700 flywheel horsepower, and if you can fab exhaust/intake piping yourself, you'll have the bulk of a turbo setup for a total of about $1200. From there, you'll need the oil lines, intercooler, and fuel/tuning stuff. The last 2 you would have needed to purchase with the supercharger anyway.

Just showing you other options....

Exidous

iTrader: (11)

There is no doubt that going turbo can be cheaper. Especially if you can fab yourself. A chop saw anda MGAW and you are gtg. But I wanted to keep A/C in my RX and a turbo just wasn't going to allow that. Queue the procharger. Clears my hood, I get to keep my A/C and it isn't all that hard on parts like a PD charger. Plus it comes with quiet gears. :-) I like the sleeper look.

The Alchemist

iTrader: (19)

Here is something else to consider, and that's power delivery.

Positive displacement superchargers are great for motors that don't make much torque to begin with, or are going into a heavy platform like a truck, suv, or 2010+ camaro. In an f-body, you don't need that instant huge torque spike at just off idle. All that will do is roast tires and will get old quickly. They also don't like to be spun high because they generate a lot of heat.

Your best bet is to pick up a used P1SC for dirt cheap, like $1000-1200 and get that setup completed for another $1000 depending on what you already have. The power delivery is more linear, and I think you'll be happier in the end.

Something to remember about the differences between a supercharger and turbo, is the rpms needed to generate the boost that they do. A centrifugal blower will top out at a much lower rpm, like 55,000-65,000 rpm due to the limitations of the bearings, so it has a more aggressive design to the impeller, but a turbo has a less agressive impeller, and is able to spin north of 100,000rpm. So if you try to modify that turbo to act like a supercharger, you will most likely never get it to the rpms needed to make proper power.

Numba20

iTrader: (1)

that build is awesome. but if i were to do something like that, i would want to place it in place of the intake manifold. I've got some friends who work CNC and could fab me a valley pan/intake mani to adapt the blower. this way i could adjust depth, and not have an issue with the pulley. a kit for the 03 cobra w140ax is about $3500. thats everything, its all there, i just have to build a plate to sit it on and make it fit. i am rather partial to this idea. did you notice if the m112 was cooled on his build or no? probably don't need it being so far away from the heat right?

admittedly my knowledge is very lacking, but i stated that to begin with. however, when i decide to start the project, i will be a guru. i get so obsessed that it doesn't take me long to find every piece of the puzzle and put them all together. i did know there was a roots blower, and a twin screw, and they were different, the twin screw being more efficient. but didn't know how the tech was different.

well I'm going with a very low 3.xx gear set up and will be running 315x60xr15 hoosier drag radials, if it doesn't grab, ill buy the real stickies. surely they will. set up goal for hp/tq is around 800 for both.

in original post when i mentioned dabbing a gear box, or adjusting the pulley ratio to achieve the rpm for desired boost, thats what i was hitting on. no thought is complete, I'm just trying to put a rough plan together for each option, price check, look at the work involved, and what type of power i will make. as i get a better idea of how each path would be structured, i will pick up more details, until i have a sound understanding of all aspects. and that is when i will start taking measurements and buying parts.

sbcgenII

iTrader: (1)

poor tech