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Old 12-23-2013, 11:22 AM
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Originally Posted by Forcefed86
If your going to spend all that money why not leave it bone stock and put a small turbo on it. 450hp is nothing with a little boost. Could be done cheaper than a 450hp NA setup IMO.
+1 My point exactly. It all comes down to $/hp.
Old 12-23-2013, 11:23 AM
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Pretty sure the OP dipped out and won't be returning.
Old 12-23-2013, 12:01 PM
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450 to the wheels, or 122+ trap speed, is very easy to obtain.

Ported 243/799 from AI/Tea/Other reputable vendors. Even AI ported 5.3 heads will do it as long as the valves are upgraded.
Pretty much any cam that's not stock or a baby cam
Fast 92/102
90MM tb
1 7/8" headers


That pretty much guarantees 450 rwhp.
Old 12-23-2013, 01:24 PM
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Originally Posted by mchicia1
450 to the wheels, or 122+ trap speed, is very easy to obtain.

Ported 243/799 from AI/Tea/Other reputable vendors. Even AI ported 5.3 heads will do it as long as the valves are upgraded.
Pretty much any cam that's not stock or a baby cam
Fast 92/102
90MM tb
1 7/8" headers


That pretty much guarantees 450 rwhp.
TEA CNC ported 243's -
$1200 plus shipping both ways and the initial cost of the 243 heads. Plus head gaskets and bolts. So I'd say $1600 minimum.

Custom cam $400+ Plus springs $120

90mm TB - $289

1 7/8 hooker headers (jegs) $750 (plus shipping)

So assuming you did all the labor yourself, that's roughly $3300 to get 450 hp. + tuning software ($650)

Thats getting close to the 4k mark. And you have to rip the engine apart to do it.

Take that same money and spend it on a turbo kit and you'll make more power on a bone stock unopened engine for half the money. If you can fabricate a tiny bit you'll be fine. If not, paying an exhaust shop to do the hotside or even buying a vendors kit would still cost less than the NA setup above.

Last edited by Forcefed86; 12-23-2013 at 01:30 PM.
Old 12-23-2013, 01:53 PM
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You're gonna spend 4k on na, or fi.. No matter what you do...pick your poison...
Originally Posted by Forcefed86
TEA CNC ported 243's -
$1200 plus shipping both ways and the initial cost of the 243 heads. Plus head gaskets and bolts. So I'd say $1600 minimum.

Custom cam $400+ Plus springs $120

90mm TB - $289

1 7/8 hooker headers (jegs) $750 (plus shipping)

So assuming you did all the labor yourself, that's roughly $3300 to get 450 hp. + tuning software ($650)

Thats getting close to the 4k mark. And you have to rip the engine apart to do it.

Take that same money and spend it on a turbo kit and you'll make more power on a bone stock unopened engine for half the money. If you can fabricate a tiny bit you'll be fine. If not, paying an exhaust shop to do the hotside or even buying a vendors kit would still cost less than the NA setup above.
Old 12-23-2013, 02:12 PM
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Cheapest way to 450whp is to start with a 6.0L iron block IMO.
Old 12-23-2013, 02:25 PM
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Originally Posted by IllusionalTA
You're gonna spend 4k on na, or fi.. No matter what you do...pick your poison...
Not true, many have done it for much less, including me. My $220 JY 5.3 went 8's and I have peanuts in this turbo kit. A good fart down the intake would make 450hp.

The entire turbo kit (including the turbo) could be done for the price of the heads alone.
Old 12-23-2013, 02:29 PM
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Better take a look at this if you don't think it's going to cost just as much as a heads/cam/intake setup.

https://ls1tech.com/forums/forced-in...induction.html
Old 12-23-2013, 02:40 PM
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HOT ROD did a 600hp turbo 5.3L for $3200 IIRC.
Old 12-23-2013, 02:47 PM
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That's DIY stuff, his tune alone can bang him 600-1000.. The hidden costs associated with forced Indux is y you see 30,000 part out threads....
Old 12-23-2013, 02:53 PM
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Originally Posted by Rise of the Phoenix
Better take a look at this if you don't think it's going to cost just as much as a heads/cam/intake setup.

https://ls1tech.com/forums/forced-in...induction.html
Don't need to read anything, I know t's cheaper than a heads/cam/intake setup. I’ve done it personally, don't need some random strangers opinion on what it costs to build a turbo car back in 2006! That’s one persons opinion on what they think is necessary. The fact is 99% of that crap isn’t necessary especially for 450 hp.

Read a book, do a little research. (it's free!) Get with the times! Go check out Denmah's builds making over 600whp on a shoestring budget. NA hot-rodding is dead IMO, just to expensive when compared to FI.

Tune? I tune myself. Never used a dyno either. Technically after heads/cam/intake you need to should RE-tune anyway.

Last edited by Forcefed86; 12-23-2013 at 03:03 PM.
Old 12-23-2013, 02:58 PM
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I'd rather go NA 450 vs FI 450. NA will be faster if the power is equal. But the headroom in FI is much greater, assuming the investment is made in the motor, trans, etc. Going fast breaks parts.
Old 12-23-2013, 03:01 PM
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Originally Posted by Forcefed86
Don't need to read anything. I’ve done it personally, don't need some random strangers opinion on what it costs to build a turbo car back in 2006! That’s one persons opinion on what they think is necessary. The fact is 99% of that crap isn’t necessary especially for 450 hp.

Read a book do a little research. Get with the times! Go check out Denmah's builds making over 600whp on a shoestring budget.
Read a.book? Sounds like you need the book pal.. Any idiot can build a 600hp turbo car...

It's not a opinion, it's folks like you claiming is 350.00 to go 8's half these kids don't factor in fuel requirements, which alone can set you back 5-800 on the low end... Nobody knockin what you've done, but be realistic..
Old 12-23-2013, 03:11 PM
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Originally Posted by IllusionalTA
Read a.book? Sounds like you need the book pal.. Any idiot can build a 600hp turbo car...

It's not a opinion, it's folks like you claiming is 350.00 to go 8's half these kids don't factor in fuel requirements, which alone can set you back 5-800 on the low end... Nobody knockin what you've done, but be realistic..
Don't put words in my mouth "Pal". I didn’t say/claim any of that. FWIW the “read a book” comment wasn't directed towards anyone specifically. I’m saying instead of paying someone to do things like tune, do it yourself. The engine management software these days practically tunes itself.

This idiot built an 800+ hp turbo engine and the kit was well under 4k. I'm a **** poor fabricator and this was literally my first time ever touching an LS Motor. I am very realistic when I say someone could easily build the entire turbo kit including the turbo for the cost of the heads mentioned alone. I'm not claiming anything. I've done it. Others have done it for less than I have.

A 450hp fuel system isn't going to be any cheaper on a FI car VS an NA engine. They will cost roughly the same.

Last edited by Forcefed86; 12-23-2013 at 03:41 PM.
Old 12-23-2013, 03:16 PM
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Ive done it far cheaper than 4k NA. Even done it with a LS1 with a 228/232 cam, LS6 intake, hand ported 243s and a 9 inch. Its all about know what your doing as to how inexpensive it can be. If you cant port heads, clean up intakes, or turn wrenches your going to pay.
Old 12-23-2013, 03:39 PM
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Originally Posted by Forcefed86
Don't need to read anything, I know t's cheaper than a heads/cam/intake setup. I’ve done it personally, don't need some random strangers opinion on what it costs to build a turbo car back in 2006! That’s one persons opinion on what they think is necessary. The fact is 99% of that crap isn’t necessary especially for 450 hp.

Read a book, do a little research. (it's free!) Get with the times! Go check out Denmah's builds making over 600whp on a shoestring budget. NA hot-rodding is dead IMO, just to expensive when compared to FI.

Tune? I tune myself. Never used a dyno either. Technically after heads/cam/intake you need to should RE-tune anyway.
I've done plenty or "research"; enough to know that a very high percentage of the people who start a turbo build don't end up finishing it because of all the little "odds and ends" things they need that they hadn't planned on, or they get in over their head with the fab work they planned on doing their self. Anyone who looks in any of the build threads in the FI section see countless posts of guys who hadn't planned on needing this or that to finish the build, and those little things add up quick. I can't remember which thread it was in, but a guy commented that you better figure in at least $800.00 extra for stuff you don't think about when you plan the build. I'm not arguing that one is greater than the other, but if all this guy wants to do is make 450 hp, then I think he'd be better served to go the NA route.
Old 12-23-2013, 03:54 PM
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N/a car is an easier route. Plus car is more reliable and easier to tune.
Old 12-23-2013, 07:11 PM
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Looks like the OP needs to add whether or not he is on a budget of any kind lol ... 450whp is even more of a cakewalk with a dyno happy T56 though...
Old 12-23-2013, 08:06 PM
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Originally Posted by bozzhawg
Interesting quote in your sig, ya got there..
Old 12-23-2013, 08:10 PM
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Long tube headers and a free flowing exhaust to start, a nice intake (SLP induction, ram air intake, etc), Fast intake manifold, a 230* or more cam cam, and a pair of AFR 205cc (or trickflow) heads, then top it off with a dyno tune. Should be around 470 to the wheels.


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