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Old 12-16-2008, 06:21 PM   #1
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FI vs. H/C/I

I'm trying to figure out the difference in cost between a blower running approximately $6.5K-$7K and heads (likely L92s with some work), cam, ported FAST, stall, and supporting mods. Any estimates as to how much the difference would be?
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Old 12-16-2008, 06:31 PM   #2
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If you are just doing a basic supercharger kit expect total cost to be around the 10k mark. For a N/A setup you might come in a little cheaper. The problem with building your engine for a N/A setup is you have to change alot of stuff if you ever decide to go FI down the road. You get your power from upping your CR with a N/A setup and you can't have that with FI. So decide what you are going to do before you start buying stuff!!!
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Old 12-16-2008, 06:32 PM   #3
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Quote:
Originally Posted by Fatbum...View Post
Money wise or power wise?

If you go twin turbos/Single turbo/Procharger or Maggie w/Headers, you will be making more then pretty much any H/C/I Combo.
Sky is the limit with turbos.

Maggie w/Headers will put you between 460-500rwhp ISH
Procharger will give you more ISH
Twins will put you around 500-550rwhp+ (APS;GenTTr base..) ISH
Single will put you at whatever you want to be...

FI is always going to make more power on the same cubes and motor. Generally speaking.

H/C/I you are looking anywhere between 430rwhp-450rwhp*since you mentioned L92s. Stall may lower that.

Go FI IMO.

Thanks Fatbum. I've narrowed it down to the Maggie or the N/A combo I mentioned. I'm looking more at the difference in cost right now.
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Old 12-16-2008, 06:34 PM   #4
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Quote:
Originally Posted by BoostedGTO...View Post
If you are just doing a basic supercharger kit expect total cost to be around the 10k mark. For a N/A setup you might come in a little cheaper. The problem with building your engine for a N/A setup is you have to change alot of stuff if you ever decide to go FI down the road. You get your power from upping your CR with a N/A setup and you can't have that with FI. So decide what you are going to do before you start buying stuff!!!

Thanks for the advice. I'm definitely sticking to one or the other! Regarding the blower, how would the price reach $10K if the unit itself is about $7K? What's accounting for the $3K aside from the install and tune?
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Old 12-16-2008, 06:47 PM   #5
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Quote:
Originally Posted by cisco...View Post
Thanks for the advice. I'm definitely sticking to one or the other! Regarding the blower, how would the price reach $10K if the unit itself is about $7K? What's accounting for the $3K aside from the install and tune?

You have to realize that builds are different per car. If you only allocate say 8k for the build you might come up short if something gets added that is needed that you forgot about. If you can get the supercharger at say 7k, add the install and tune (as you need a good tune to make sure everything is safe and efficient). You are now at 8.5k. You should really think about changing out your stock springs, add another 750 or so for parts and labor. You are now over 9k. You should think about adding a boost a pump just to make sure you dont have to worry about fuel. As you can see, things add up that you really don't think about. Keep your checkbook open and be ready for the forgotten or unexpected. Do you need to have the dyno tune, springs, or BAP.....in simple terms no. However the more you spend initially the less you have to worry about after the install is complete. It would suck to have everything together and you break a spring because you didn't change it out. I hope you get at what I am trying to say. It is always going to be more then you expect so expect it to be more!!!!
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Old 12-16-2008, 07:04 PM   #6
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I just went through this whole process myself and settled on FI (maggie). ...Here's my reasoning....

My goals were not horsepower, as I believe a dyno is tuning tool, but a street machine that was a beast, while also being capable on the track to run with the best of them. As far as the numbers go though, I want to see at least 515whp (yes, I'm doing blower cam too). The maggie is going to allow me to have instant torque whenever and wherever I want it through the powerband. It is also a looooot cheaper when you look at performance....twins can mean twice the maintenance and cost, and with any turbo application there is always lag time....not for me....but, the in regard to power it is almost endless depending on how crazy you want to go.

In the comparision of a maggie and a procharger....it depends more on what you want to do with the motor...if you plan to stoke it or go bigger cubes than stock, go procharger, a maggie will fall on it's face with bigger cubes. But on the street, a stock cubed GTO maggie car will beat a stock cubed procharged car.

anyway, let me know if I can be of any further help
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Old 12-16-2008, 07:06 PM   #7
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ohh and something else to keep in mind, that boostedGTO just brought up....you will more than likely end up spending more on your build than you initially set out too....there is a lot more involved in the build of A QUALITY car then you initially think.

trust me lol
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Old 12-17-2008, 05:10 AM   #8
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If you super charging Maggie is last one I'd go with JMO. Way too little benefit for what you get.
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Old 12-17-2008, 06:39 AM   #9
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Quote:
Originally Posted by 2005silverbullet...View Post
If you super charging Maggie is last one I'd go with JMO. Way too little benefit for what you get.

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Old 12-17-2008, 07:17 AM   #10
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well that depends on how high you want your ceiling to be...for me and my goals, a solid 525-550 whp street beast, the maggie is ideal

but you are right, if someones goals are be in the 650+whp range, then yes you will need turbos or procharger
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Old 12-17-2008, 07:18 AM   #11
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Quote:
Originally Posted by 2005silverbullet...View Post
If you super charging Maggie is last one I'd go with JMO. Way too little benefit for what you get.

but I don't agree with this at all
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Old 12-17-2008, 07:19 AM   #12
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Quote:
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but I don't agree with this at all

lots of people dont agree with it, and yet some feel the need to continually grind that axe.
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Old 12-17-2008, 07:26 AM   #13
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Quote:
Originally Posted by Fatbum...View Post
Although there is more area unde the curve throughout the power band with a Maggie, you will have a smaller maximum e-peen HP number and will start having to tap into other areas to compete on the dyno

fixed!
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Old 12-17-2008, 07:37 AM   #14
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Quote:
Originally Posted by Fatbum...View Post
Resorting to dyno queen claims that's cute.

Shall we take a look at 1/4 times?

Because those are the real numbers aren't they?

Don't be pissed because you don't have a twin screw, procharger, twin turbo or turbo setup.

dont be pissed because you cant understand why people make different decisions than you would and yet are still happy.

lilke I said, some people have an axe to grind and just cant accept some people make different choices for different reasons.
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Old 12-17-2008, 07:38 AM   #15
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Quote:
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Man almost 10,000 posts and you still don't know wtf your talking about

You should be ashamed...

Whatever you say comrade. I know enough to not give a shit what you think.
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Old 12-17-2008, 07:40 AM   #16
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Quote:
Originally Posted by Fatbum...View Post
Like what? They want more power under the curve then a Procharger? More consistency then turbos? Easier install?

I can comprehend that completely, don't pull that dyno queen crap though like people don't know what their talking about.

YOU were the one that brought up HP numbers, so dont open that door, and give ME shit for walking through it. Ass.
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Old 12-17-2008, 07:44 AM   #17
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Apparently peoples memory of this sticky:
http://www.ls1gto.com/forums/showthread.php?t=224020

Needs to be refreshed...

Figure out whats important to you, and buy it, and be happy. Dont worry about what other people would do, unless they are buying it for you.
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Old 12-17-2008, 07:48 AM   #18
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Originally Posted by Fatbum...View Post
I hate that sticky. It is generally misleading and lacks tons of important info that would be beautiful to have when choosing your type of forced induction.

Well then rocket scientist, make your own far superior post, and I will petition the mods to make it a sticky.

Put your money where your mouth is.
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Old 12-17-2008, 07:57 AM   #19
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Good thing I work on rockets right?

Effort is not to be confused with IQ.

Don't care enough.

You care enough to stay the sticky sucks, but not enough to write a better one. Nice cop out. That makes you a loud mouth chump who likes to shit all over everything but has nothing constructive to offer anyone except your valued "opinion".

Quote:
I just think it is funny when nutswingers like you get all hyped up about the golden stickies and whatever type of forced induction they think is best.

Im not a nutswinger, I just dont like people grinding axes. If you cant see the difference, perhaps the problem is yours?

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Good thing Maggies are the king of reliability right?

You got it!!!
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Old 12-17-2008, 08:12 AM   #20
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You guys kill me......I am sure the OP wanted all this info in his thread. I agree that the maggie limits your possibilities to expand. That is why I am selling my 122. I was at the ceiling of what I could get with it before the build even started. For people wanting extreme and stupid power, maggie is not what you need. For people that want something simple to bolt onto their car and make good power, maggie is one of many choices. As has been said 8 billion times already, every FI out there has its pro's and con's...unless you get the twin screw
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Old 12-17-2008, 04:48 PM   #21
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I'm sorry never even had a Maggie but if I were or had a axe to grind. Here are reasons why.
1. maggie is heat sink.( no way to cool air after you heated it up)
2.Old system problematic at best according to these forums.
3.when comparing to other f.i types it loses hand down cost and power.
Like i said last one Id chose but its your car and your decision. If I makes you happy do whatever you want.
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Old 12-17-2008, 05:06 PM   #22
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Why not just buy a shortblock stroker, heads, cam, intake, headers, the works, and sell your old motor and make more reliable hp/tq and run great track times. It would cost much less than any FI would. I have right around $6100 in my entire setup(short block, heads, cam, intake, Kooks headers, and tune) after I sold off my stock motor. Make good numbers and run great times for where I am at.
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