SC the 3100 - GM Performance Tuning

lishumo · #1 (**permalink**) 07-19-2007, 09:22 PM

Hi everybody, i have a 01 buick century, it is a 3100 V6. i think it has a bit higher output than the older ones. i want to get more power, many people were suggesting the 3400, however, the hp and torque is not a big jump comparing to the price of the job. and also i am worrying about the maintenace too. SO is there any supercharge kit for the engine?? my car got about 69000 miles.

lishumo · #2 (**permalink**) 07-19-2007, 09:23 PM

can i use the supercharger from regal?

grandravermc · #3 (**permalink**) 07-20-2007, 04:04 PM

Not really bro... The 3100's don't have TOO many things like that available. I mean, there ARE some people on here with some DAYAMN good-runnin 3100's, but I've NEVER heard of s/c setup on a 3100. Best best it to swap in the 3400 if you're that serious about making it fast. Thing is, with only 69k miles...that's almost not WORTH it. BUY a W-Body with the L67 ! haha...
(I just did- no comparison)

lishumo · #4 (**permalink**) 07-21-2007, 12:08 AM

thanks~!
is it possible to put a 3800 series ii ,if sometime my 3100 is broken, kaka?
it is ture that almost not thing for 3100, even a K&N filter.......

91parkave · #5 (**permalink**) 07-23-2007, 01:17 AM

i have to agree the century is still a w-body though so you can snatch the motor and trans out of a grand prix, impala ss, regal gs,blah blah or you could always go turbo with about 10 psi youll be very very quick with the light weight you have to have already

grandravermc · #6 (**permalink**) 07-23-2007, 03:46 PM

Quote:

Originally Posted by 91parkave

i have to agree the century is still a w-body though so you can snatch the motor and trans out of a grand prix, impala ss, regal gs,blah blah or you could always go turbo with about 10 psi youll be very very quick with the light weight you have to have already

IS it ? The Century's a diff set-up than the Regal I thought. ??? They're WIDER and weren't available with the console shifter OR anything other than the 3100 V6. Hmm?

91parkave · #7 (**permalink**) 07-26-2007, 02:28 AM

sheetmetal dosent matter its the subframe is whats important

grandravermc · #8 (**permalink**) 07-27-2007, 03:42 PM

Quote:

Originally Posted by 91parkave

sheetmetal dosent matter its the subframe is whats important

Right right...

Was the sub frame on the CENTURY the same as on the REGAL ?? (w-body??)

achievasc92 · #9 (**permalink**) 07-27-2007, 04:05 PM

The 2001 century is a w-body just like the regal, GP etc...
The only difference between the regal and century are trim packs and powertrain. The swap should be fairly easy if you know what you're doing and you grab the mounts, engine, etc from a GS or GTP

Up until 1997 the century was an A-body.

cmonnich3057 · #10 (**permalink**) 08-20-2007, 12:59 PM

An alternative to the L67 swap which may end up costing about the same but will result in far less downtime would be doing either a full NA mod setup (intake, exhaust headers and system, and cam) or going for a stock-turbo. The natural-setup would allow you to do it step-by-step, so you'd still have the car to drive most of the time; the exhaust modifications would likely give you the biggest benefit, as the stock manifolds on the 60-degree engines are notorious for being a cheap-to-produce but terrible-flowing design.
The turbo deal would be a mostly-custom setup, unless you could find an online supplier that sells a 3100/3400 turbo kit (I know they make a kit for the 3800, but I have yet to see one for the 60-degree engines); however, you may be able to run mostly stock internals if you didn't push the boost very high, and you'd be looking at power levels close to the supercharged 3800 at high-end RPM. The engine bays of the Century/Regal/Grand Prix/Monte are pretty big, and there's plenty of space underneath the engines for running piping and ducting.

As a side note, about the only Roots-type supercharger (the "blower" that sits on top of the L67 in the Regal and GP) that will fit the 3100 is an old TB-injected mod for '80s 2.8L truck engines. They're hard to find, and are generally considered a pretty useless mod unless you're going for all-out drag performance, since you're downgrading to a "carb-injected" setup that you'd likely have to do a full standalone computer tune for.

Best 'o luck!
C

91parkave · #11 (**permalink**) 08-22-2007, 07:53 PM

n/a honestly witha 3.1 isnt worth the money turbo is the way to go. you shouldnt needa turbo kit either. get a nice t3/t4 turbo and intercooler and approiate supporting mods 36lb or 42lb injectors are more than approriate for 10lbs of boost and the stock internals will hol if you get it tuned properley. As for your transmission thats another story........

cmonnich3057 · #12 (**permalink**) 08-23-2007, 12:29 AM

There are a number of websites that have kits that allow you to convert a standard 4t65e transmission to the Heavy Duty version used on the L67-based Regals, Montes and GPs...most go for around $500, minus labor. Milzy Motorsports has a bunch of good stuff (http://www.milzymotorsports.com) for just about everything 1995-present. 3800performance.com wouldn't be a bad stop, if just for ideas and additional research; you could likely use their turbo kit as a reference if you wanted to.

91parkave · #13 (**permalink**) 08-23-2007, 03:31 AM

www.intense-racing.com
www.zzperformance.com
www.pfyc.com
www.cartuning.ca
www.stattama.com

as for the HD upgrade its not hard at all best of luck to you

grandravermc · #14 (**permalink**) 08-23-2007, 08:04 PM

Quote:

Originally Posted by achievasc92

The 2001 century is a w-body just like the regal, GP etc...
The only difference between the regal and century are trim packs and powertrain. The swap should be fairly easy if you know what you're doing and you grab the mounts, engine, etc from a GS or GTP

Up until 1997 the century was an A-body.

Yeah, you know what- I'm sorry. I TOTALLY wasn't paying close enough attention to his post. I didn't realize, at first, we were talking about a Century. (idiot ass Mike, haha)- Yeah, they're BIG... W-Body, which I didn't even know for sure. Thanks for enlightening me on that.

NICE replies too- Very good info- THANKS for that!

Clutch502 · #15 (**permalink**) 09-18-2007, 06:55 AM

with the compression the 3100 makes you can run 8 or 9 psi safely on a daily driven vehicle with stock interals..... not exceeding the 270hp mark. and the stock injectors would be fine for this type of a application i have already looked all this up... im thinkin about goin this route on my 95 Beretta Z26. i need to find a 5 spd swap though cause the auto trannies are trash in my opion..... but you can up grade the fuel system for more power if you like i think 270 in a car this size would be good for a DD.
help with find the tranny swap would be greatly apperciated.....