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Top Swap, Supercharging, etc. on GM 3.8L V6


20 replies to this topic

#1
iceman1575

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I've seen a ton of things that would have to be done to a standard GP GT to upgrade the engine for supercharging. Anyone wanna give me a basic idea on what to do if I wanted to add the supercharger from a GTP onto my GT? I've heard so much has to be done, but it's just got me in a confused loop. >_> Thanks

POTATO!


#2
wL<3bass

wL<3bass

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Lol I actually just got done last week swapping a GTP motor into an SE... Lemme find pics...

edit: Uploading pics now, with the top swap you have to change the heads and the supercharger and get your ECU flashed for the swap, ZZ Perofrmance does a good job they are who did the flash on the swap I did... The alos have extras like the XP cam among other things. With just a top swap you will make more power b/c of higher compression pistons but the non-supercharged motors are nearly as beefy as the supercharged ones... Also the stock non-supercharged transmissions do not like power.... We are running one right now but it only has 50k on it...

Edited by wL<3bass, 03 June 2010 - 10:12 AM.

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#3
wL<3bass

wL<3bass

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Okay its in a 1997 Grand Prix SE, 4dr no wing = total sleeper.

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My brother and I did the swap for my dad... He got lucky and scored the complete running GTP motor for $250 and all it had wrong with it was a bad supercharger coupler which was a $30 30minute fix.

http://www.youtube.com/watch?v=web3rw4bjnk

http://www.zzperformance.com/

Edited by wL<3bass, 03 June 2010 - 10:21 AM.

Vehicle: 1997 S10 Blazer 4dr 4X4
Exterior: Rear End Bagged, Black Grill, Lifted 2"
Amplifiers: Rockford Fosgate T8004 & T10001bd
Batteries: 2 Stinger SPV35, Kinetik HC2400
Electrical: Big 3, DC Power 290amp Alternator w/ MLA at 15.5v
Enclosure: 4.2 ft³ @ 33Hz 84sq.in. of port (20sq.in. per cube)
Headunit: Eclipse CD3200 w/ 80G iPod
Mids/Highs: Rockford T152s (a-pillars), Rockford T162s (doors)
Subwoofers: 1 15" Fi BL Fully Loaded
Wire: All 1/0g Kicker Hyperflex

My YouTube Videos
My Fiberglass A-Pillar Build
My "Seamless" Looking Box Build
My DD1508 T-Line Bandpass Build "Seamless" w/ Acrylic Windows (for '05 TrailBlazer)
My Stealth 8" Fiberglass Build (for '05 TrailBlazer)
My Build For A Friend's '08 Cobalt 15" BL Sealed Off From The Trunk
My feedback/references...

#4
Shyne151

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Did you look at my thread here:
http://www.stevemead...-finished-pics/


Basically to do a top swap you need:
new harmonic balancer for dual belts
lower intake manifold off a l67
fuel rails off an l67
injectors off an l67
throttle body off an l67
heads of an l67
coil pack bracket
supercharger idler pulleys
most important someone who has access to a DHP or some sort of programming device to reprogram your pcm. Without this I would have been fucked. The person who did the swap with me was running a high 11s intercooled beast and is verrrrry good at tuning.


I would also suggest throwing a 3" downpipe and some sort of intake on it.... with the higher compression of the L36 block you are gonna be getting bad KR...

Mine turned out well... I'm put about 2500miles on it since the swap. Only thing I regret is not doing headers at the time... bummer.


www.zzperformance.com - nice having them in michigan i get everything next day
www.clubgp.com
www.grandprixforums.net

Edited by Shyne151, 03 June 2010 - 01:28 PM.

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#5
Shyne151

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http://www.youtube.c...h?v=Z8s19M7ajh8




mine from 30-80mph... mind you not fully tuned and my stereo in th trunk.

Edited by Shyne151, 03 June 2010 - 01:48 PM.

-Installer for Duke's Car Stereo

2000 Pontiac Grand Prix - Ported Eaton M90 S/C, 3.5" pulley, XS Power Headers, 1.9 Rockers, FWI, Poly Motor Mounts, Custom Tune.
RF T1000-1bdCP and T400-4
Boston Acoustics SPG 555
Kenwood eXcelon 995
RF Punch 6.5" components and MB Quart Premium 6x9"s
Powermaster Alternator, YellowTop D34, Vmax CT1000

#6
Wastehog

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Yeah, you can gain quite a bit of flow on new headers and dual or bigger exhaust. Any one can notice how restrictive l36 manifolds are.. especially with 6 cylinders fighting for one pipe lol.
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#7
noph33rracing

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That thing is schweet
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#8
97SSBlazer

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My buddy Top swapped a GP GT. You had better find a good tuned first because if you don't you WILL burn a hole in a piston. It only took him a week. Now that its tuned and inter-cooled its WICKED fast. Of course this is only the case if you not swapping the entire engine from a GTP. There's a LOT of GP/GTP's in MI so I see like 100 a day lol.

lower tuning is just hard. I was surprised how loud 145 sounds at 35hz, and how quiet 145 sounds at 50hz.

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#9
Shyne151

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My buddy Top swapped a GP GT. You had better find a good tuned first because if you don't you WILL burn a hole in a piston. It only took him a week. Now that its tuned and inter-cooled its WICKED fast. Of course this is only the case if you not swapping the entire engine from a GTP. There's a LOT of GP/GTP's in MI so I see like 100 a day lol.


You live in lansing... what do you expect the biggest 3800 performance parts company in the world is like 45min away from you :)


inter-cooler = teh shit. The guy that did my swap with me makes phelonic intercoolers(gotta love engineers)... thats the next step(along with rockers) on my setup along with dropping a couple pulley sizes once we put it on :)

Edited by Shyne151, 15 June 2010 - 05:31 PM.

-Installer for Duke's Car Stereo

2000 Pontiac Grand Prix - Ported Eaton M90 S/C, 3.5" pulley, XS Power Headers, 1.9 Rockers, FWI, Poly Motor Mounts, Custom Tune.
RF T1000-1bdCP and T400-4
Boston Acoustics SPG 555
Kenwood eXcelon 995
RF Punch 6.5" components and MB Quart Premium 6x9"s
Powermaster Alternator, YellowTop D34, Vmax CT1000

#10
Mosin

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I've always been a fan of the 3800 supercharged motors. Especially the newer ones. Local guy around here has a fully built supercharged 3800 in his GTP. Here is a few pics:
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Derp.


#11
El1T3Bass

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I've always been a fan of the 3800 supercharged motors. Especially the newer ones. Local guy around here has a fully built supercharged 3800 in his GTP. Here is a few pics:
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moar pics of that sex kitten???
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wow now this just shows that smd isnt just any forum. We are a brother hood.

here let me put it in retard-onix for u aareehhhh duuuurrrrr ehhh got it now?

Sweet baby jesus the amount of quoting the quote above the quote in a quote is epic


#12
EricR

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Same engine thats in my 02 Impala. Hmm

i was thinking leave the 12 sitting in the box in the hole and duck tape from the bottom of the sub to the bottom of the baffle so the sub doesnt free air. would that work?


#13
Mosin

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EricR - I'm sure you can molest Impala SS' of your same year to get the supercharger, etc. If they are diff from the GP's.

ZZP Valve Covers, ZZP 78 Billet TB, ZZP Heads and Gen V Supercharger, Meziere Electric Water Pump, ZZP Ported Lower Intake Manifold, ZZP S2 Full Size Intercooler, JP double roller timing set, ARP head studs, ZZP CNC P&P'ed Heads. New Valves, Mod'd Retainers, Viton Valve Seals, Comp Cam Valve Locks, 105 springs for Exhaust, 130 springs for intake, etc...

Moar pics...

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Derp.


#14
josemolina2008

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You should check this site out: http://www.grandprixforums.net/

They have a lot of posts explaining all that needs to be done and there are a lot of very knowledgeable people on there. If you have questions just ask around.
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#15
BanginOnABudget

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a lot of power + pwd = have fun with your lolcantturn mobile.
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im taking out my passenger seat, battery is disconnected, going to unwire and take out the three amps, take out the 70+ lb box, then the platform so i can crimp 1 wire.

Almost as bad as those fegs that put those horns in their grills and roll down the street distorting the block....


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#16
windycitygtp

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I Remeber the build log for that blk gtp on gpf.net pretty sick build.
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GtP
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#17
windycitygtp

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josemolina2008 its good to see another gpf.net member on smd
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GtP
Learning more about car audio everyday on smd
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current noob setup
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#18
chevyman217

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Let's get some videos of this beast. :drink40:

Some people could care less about who the genius is that is making the product... They just want to get it cheap and say "derrrr, look at teh pretty lights in muh dash!"

Because audio is a lifestyle not a hobby.

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#19
Shyne151

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josemolina2008 its good to see another gpf.net member on smd


clubgp > gpf.net ;)
-Installer for Duke's Car Stereo

2000 Pontiac Grand Prix - Ported Eaton M90 S/C, 3.5" pulley, XS Power Headers, 1.9 Rockers, FWI, Poly Motor Mounts, Custom Tune.
RF T1000-1bdCP and T400-4
Boston Acoustics SPG 555
Kenwood eXcelon 995
RF Punch 6.5" components and MB Quart Premium 6x9"s
Powermaster Alternator, YellowTop D34, Vmax CT1000

#20
josemolina2008

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josemolina2008 its good to see another gpf.net member on smd


Yeah just here to learn a little bit, I think it might turn into an addiction :ehh:
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