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3.1L supercharger?

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Old May 28, 2003 | 04:55 PM
  #1  
92RS3.1L's Avatar
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From: Shelby Twp. MI
Car: 91 Z28
Engine: Rebuilt and modified 350
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3.1L supercharger?

Does anybody know of a supercharger for a 3.1? Ive heard of superchargers for small block chevy engines, but will it work on my V6?
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Old May 28, 2003 | 05:02 PM
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From: Augusta/Valdosta, GA
Car: 1987 Iroc-Z28
Engine: 350 TPI
Transmission: auto
simple answer....nope

even if they made one, it would be expensive as hell, and wouldn't help that much. you figure $2000-$3000 for it, and you'd get like a 30% gain, which isn't that much when you're only starting out with 140hp....you could buy a new engine for less than that price, and get more power outta it than a supercharger would add to the 3.1
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Old May 28, 2003 | 05:05 PM
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From: Shelby Twp. MI
Car: 91 Z28
Engine: Rebuilt and modified 350
Transmission: rebuilt T-5
dude, howd u get ur V6 to pump out 385 hp?
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Old May 28, 2003 | 05:16 PM
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From: Shelby Twp. MI
Car: 91 Z28
Engine: Rebuilt and modified 350
Transmission: rebuilt T-5
dude, howd u get ur V6 to pump out 385 hp?
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Old May 28, 2003 | 05:29 PM
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From: Augusta/Valdosta, GA
Car: 1987 Iroc-Z28
Engine: 350 TPI
Transmission: auto
lol it doesn't.....it's right around 150hp, but it'll soon be going to the junkyard

when i made this SN, i was right on the verge of buying a ZZ4 that had 385hp.....but s*** came up and i decided not to get it. right now i'm rebuilding a 5.7, so i'll have some decent power in few weeks, but sorry, i dont think its possible to get 385hp outta our v-6's...seems like the block would blow with that much hp, not to mention the tens of thousands of dollars you'd have to spend to get the hp near that number.

if you really want more power, do what i'm doing. buy a 5.7L from a junyard w/ all accessories for $200. buy a rebuild kit for $400. spend some time and you got a good as new 5.7L. buy a junked tran for $150, rebuild it for $300. there ya go, $1050 and a lot of hours and you have 240hp and a great base to build on
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Old May 28, 2003 | 06:49 PM
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be creative, build a turbo kit or an intake for a 3.8 supercharger..

If i had a little 3rd gen V6 i'd go nuts with all that under hood room and make somthing work
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Old May 30, 2003 | 02:14 PM
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From: Cheyenne, Wyoming
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Transmission: built 700R4 w/custom converter
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yeah the smaller eaton that comes on the 3.8 might do the trick or even a whole 3.8 blown motor install if the car is auto will bolt right up to the trans. a 749 ECM swap using the existing or partially replaced harness would be cool. Remember no supercharged 3.8s were made with a stick so there is no provision for a pilot bearing in the crank unless you remove it and machine the hole to install one. This might be a cool swap considering the desirability of the GN turbo 3.8 has driven the costs and availability of that engine too high. The 3.8 supercharged motor could probably be had reasonably still.
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Old May 30, 2003 | 04:06 PM
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Originally posted by B4Ctom1
yeah the smaller eaton that comes on the 3.8 might do the trick or even a whole 3.8 blown motor install if the car is auto will bolt right up to the trans. a 749 ECM swap using the existing or partially replaced harness would be cool. Remember no supercharged 3.8s were made with a stick so there is no provision for a pilot bearing in the crank unless you remove it and machine the hole to install one. This might be a cool swap considering the desirability of the GN turbo 3.8 has driven the costs and availability of that engine too high. The 3.8 supercharged motor could probably be had reasonably still.
I think the crank is the same as the 3800 4th gen cars, hopefully just as strong anyway, so if the hole isnt there, it may be just a crank swap away, the s/c 3800 swap seems like quite an idea.
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Old May 30, 2003 | 05:40 PM
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I suggest going to a 350 or maybe a Big Block hehehehehehe, but it sounds like u really want a v-6 for some reason, so I would suggest getting the hp up to 200(dont laugh some new cars w/ 4 cyl can do this) Then through on like daul Turbos or SuperChargers and that be like 400 hp, now of course this all sounds nuts, but so doesnt a go fast v-6. lol Gooood Luck!
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Old May 30, 2003 | 05:43 PM
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I tuned a fiero wednesday with a stroked 2.8 and a little cam and he says he ran 14.9's before the stroker kit and larger cam and tune.. Prehaps it willl run low 14's now

I was impressed

oh this was NA
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Old May 30, 2003 | 05:55 PM
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From: Augusta/Valdosta, GA
Car: 1987 Iroc-Z28
Engine: 350 TPI
Transmission: auto
Originally posted by TonyP455
I suggest going to a 350 or maybe a Big Block hehehehehehe, but it sounds like u really want a v-6 for some reason, so I would suggest getting the hp up to 200(dont laugh some new cars w/ 4 cyl can do this) Then through on like daul Turbos or SuperChargers and that be like 400 hp, now of course this all sounds nuts, but so doesnt a go fast v-6. lol Gooood Luck!
a turboed v-6 would prob. be cheaper than going w/ the 350. consider price of the new engine, rebuild (if neccessary), new engine accessories that a v-6 wont' fit, and a new tranny.....adds up quick (but i'm doing it right now, 5.7L )
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Old May 31, 2003 | 01:01 AM
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Car: 00 TA, 91 Formula, 89 RS
Engine: LS1 / 305 / 2.8, respectively
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Everybody talks about boosting their 6 but nobody ever does it... I'd love to actually see it. (TTA doesn't count)
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Old May 31, 2003 | 02:36 AM
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Originally posted by CamaroRS385hp
a turboed v-6 would prob. be cheaper than going w/ the 350. consider price of the new engine, rebuild (if neccessary), new engine accessories that a v-6 wont' fit, and a new tranny.....adds up quick (but i'm doing it right now, 5.7L )
a turbo V6 will 99.9999% of the time be more expensive than a standard lil 350 V8 buildup. There are MANY MANY details of a turbo swap that require attending to
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Old May 31, 2003 | 10:00 PM
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From: Shelby Twp. MI
Car: 91 Z28
Engine: Rebuilt and modified 350
Transmission: rebuilt T-5
Originally posted by TonyP455
I suggest going to a 350 or maybe a Big Block hehehehehehe, but it sounds like u really want a v-6 for some reason, so I would suggest getting the hp up to 200(dont laugh some new cars w/ 4 cyl can do this) Then through on like daul Turbos or SuperChargers and that be like 400 hp, now of course this all sounds nuts, but so doesnt a go fast v-6. lol Gooood Luck!

Yeah. my parents arent letting me get a V8, "too much power" they say, but they never said i couldnt sup up a V6, so i want to get as much horsepower as i can out of a V6, short of replacing the engine.
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Old Jun 3, 2003 | 03:16 AM
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FWIW, airflow=hp. If you need to force roughly the same amount of air into a 502ci big block as you would to into a 2.0L 4 to make the same power. The issue becomes that as you try to force more air into a smaller space it becomes harder to control, and harder to keep from breaking things.

In a nutshell, if you want 300hp from your 3.1, find a compressor (supercharger, turbo, whatever) that can move enough air to make that power and then get it working with the 3.1. If that’s what you wanted a turbo off of a GN, an M90 eaton off of a t-bird or one of the 3.8 supercharged gm engines, or an assortment of aftermarket blowers will do it.

If you want 200hp… well, the easiest way with a 3.1 would be to modify the engine to move enough air do it NA, since that’s not very hard…
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Old Jun 4, 2003 | 07:45 PM
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From: Shelby Twp. MI
Car: 91 Z28
Engine: Rebuilt and modified 350
Transmission: rebuilt T-5
Hey, cool. I hear that all these guys here have custom CAI, i would like to know where i could possibly get one for my 3.1
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Old Jun 12, 2003 | 07:31 PM
  #17  
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Originally posted by 92RS3.1L
Hey, cool. I hear that all these guys here have custom CAI, i would like to know where i could possibly get one for my 3.1
http://thirdgenmods.firebirdv6.com/coldair.html

also, just the CAI isnt going to help much on a stock motor (hell, even a super/turbo wouldnt)

the biggest problem with the 2.8/3.1's is that they have a VERY sh1tty cam profile and VERY sh1tty rockers. The rockers flex, and can give as little at 1.42 ratio.

Trying to force huge ammounts of air thru the stock cam it not going to work well at all.

Get a cam and Summit 1.6 stamped steal roller rockers off of a V8 before you try doing force induction.
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Old Jun 18, 2003 | 03:29 AM
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Originally posted by FyreLance
Everybody talks about boosting their 6 but nobody ever does it... I'd love to actually see it. (TTA doesn't count)
WRONG!!! https://www.thirdgen.org/techbb2/sho...3&goto=newpost
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