V6 Discussion and questions about the base carbureted or MPFI V6's and the rare SFI Turbo V6.

Decarbonization

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Old Feb 27, 2003 | 09:37 PM
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From: Dubuque, IA
Car: 2006 'Nox 91 Camaro RS 91 1500 Silv
Engine: GM 3.8L, 305 SBC, 350 SBC
Transmission: Auto, auto, auto
Decarbonization

I saw this process.....60 degree V6 site

I did this tonight and it really helped my car....made tons and tons of really black smoke....but has helped a whole lot. I can feel it during normal driving.

So the questions are...is this dangerous for my car, and I should change my oil now right?



:hail: :hail: :hail: :hail:
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Old Feb 28, 2003 | 11:50 AM
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From: Chasing Electrons
Car: check
Engine: check
Transmission: check
Re: Decarbonization

Originally posted by Damien00677
I saw this process.....60 degree V6 site

I did this tonight and it really helped my car....made tons and tons of really black smoke....but has helped a whole lot. I can feel it during normal driving.

So the questions are...is this dangerous for my car, and I should change my oil now right?

I usually try to do this kind stuff right before an oil change. Can't hurt to change it. Is it positively required, I'd say no.

I'll bet a bunch of that smoke was from it cleaning out the plenum and runners. With the EGR coming in right behind the throttle body it makes a real mess of the interior of the manifold. Hmm, I would imagine the backs of the intake valves too.

Anyway, that GM top end cleaner is some good stuff.

RBob.
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Old Feb 28, 2003 | 12:32 PM
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Car: 95 E-150 & 07 Kawasaki ZX-6R
Engine: A slow one & a fast one
Transmission: A bad one & a good one
Axle/Gears: A weak one & a chained one
Why is it that I always find these articles AFTER I sell my car??! Ahh, I would've done this! Oh well.... Sounds cool as hell to me!
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Old Feb 28, 2003 | 03:05 PM
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Car: 2006 'Nox 91 Camaro RS 91 1500 Silv
Engine: GM 3.8L, 305 SBC, 350 SBC
Transmission: Auto, auto, auto
cool....I'm sure the neighbors didn't appreciate all that smoke tho lol.....My engine has amazingly low compression in two cylinders....and today after doing that....I can spin my tires without doing a breakstand
::lala: :lala: :lala:
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Old Feb 28, 2003 | 03:10 PM
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Car: 1990 Pontiac Firebird
Engine: 3.1L v6
Transmission: Automatic
v6 should easily break the tires loose on dry pavement from a dead stop, at least a 3.1 not sure how much different the 2.8 is. have u done another compression check to see if those 2 cylinders went up? i bet some carbon deposits on the valves was leaking some air. might have to do this one day, sounds fun
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Old Feb 28, 2003 | 05:26 PM
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From: Palm Bay, Florida, USA
Car: 95 E-150 & 07 Kawasaki ZX-6R
Engine: A slow one & a fast one
Transmission: A bad one & a good one
Axle/Gears: A weak one & a chained one
Tek..depends on the condition and the tires! My 3.1 never was able to break the tires loose on dry pavement until I got a better air filter, and fixed a few things..and then it would RARELY do it..I had to be trying. The tires were 235 60 15 BFG Radial T/A's. After the Dynomax exhaust and cat, I could break them loose almost every time, except when I had a slight rich condition on takeoff, which happened now and again.

If I remember right on the 2.8's.....
3.1 = 140 hp, 180-185 ft lbs. (All charts I've seen, 1990 and 1992 got 180 ft lbs, whereas 1991 got 185. Don't know why.)
2.8 = 135 hp, 165 ft lbs.

I'd like to know the compression numbers too, for curiosity...and what are they supposed to be? My V-8 it's supposed to be 155-160 and my #8 cylinder is down to 125....you could never tell except for the occasional slight miss at idle...but it lacks no power whatsoever!
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Old Feb 28, 2003 | 05:29 PM
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Car: 1990 Pontiac Firebird
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i dunno my v6 breaks them loose all the time except if im rolling even like 3mph. my tires are stock size with more then 50% left. i guess they are a less grippy tire material. i'll have to keep that in mind when i need to get tires, id hate not to be able to chirp them anymore!
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Old Feb 28, 2003 | 05:33 PM
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From: Palm Bay, Florida, USA
Car: 95 E-150 & 07 Kawasaki ZX-6R
Engine: A slow one & a fast one
Transmission: A bad one & a good one
Axle/Gears: A weak one & a chained one
Lol oh yes.. The Radial T/A's are pretty grippy....they wore too quick for my tastes yet still didn't hold like I wanted them too. Ditched the backs for some Cooper Sigma's with the same ratings as the T/A's...unfortunately, I didn't keep the car long enough to compare the wear on the two. But look at it this way Tek....the more smoke, the more's broke. The more show, the less go! Get some grippy suckers on there and hook up immediately...you'd be surprised how much time a quick hookup can take off of 0-60mph times. When I got my launch PERFECT with a dead on hookup, I did 8.28 G-Teched. When I had tirespin, my best run was like 8.56, the other runs were more like 8.89 and 8.74.
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Old Feb 28, 2003 | 05:38 PM
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Car: 1990 Pontiac Firebird
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if i put some real grippy tires on my car id probably blow my tranny in about a week im not sure what brand is on there now i'll check tomorrow. i still rather be able to hear my tires chirp and squeel then have faster times. the car is slow either way, might as well make some noise.
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Old Feb 28, 2003 | 05:41 PM
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From: Palm Bay, Florida, USA
Car: 95 E-150 & 07 Kawasaki ZX-6R
Engine: A slow one & a fast one
Transmission: A bad one & a good one
Axle/Gears: A weak one & a chained one
I don't get what you mean about the tranny...? In my Camaro, I ALWAYS thought I was gonna blow my tranny but never did. After driving my new car, the Camaro tranny feels brand new to me. This new thing....ugh. Damn Ford AOD's... This thing's either got a shift kit, or 3rd and Overdrive gears are on the verge of going out.
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Old Feb 28, 2003 | 05:43 PM
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From: Palm Bay, Florida, USA
Car: 95 E-150 & 07 Kawasaki ZX-6R
Engine: A slow one & a fast one
Transmission: A bad one & a good one
Axle/Gears: A weak one & a chained one
And as far as making some noise on takeoff..know how you do that even with grippy tires? Raise rpms for takeoff. If you've got an auto, stand on the brakes and bring the rpms up right to the point where the car tries to lurch on you. Hold them there and launch from that. You'll break traction quite a bit on takeoff. I did it all the time on those Radial T/A's when I didn't have the power to put it to the floor and chirp...I held the rpms up high and took off..squeals for 1-2 seconds, maybe more.
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Old Feb 28, 2003 | 05:50 PM
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Car: 1990 Pontiac Firebird
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too much work, i like just nailing it and squeeling

about it being harder on the tranny, it is with tires with more grip. all that energy being sent down the driveline will escape through a spinning tire. but if your tires are hooked up theres more stress on the driveline. in the long run it probably doesnt make any difference though.
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Old Feb 28, 2003 | 05:54 PM
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From: Palm Bay, Florida, USA
Car: 95 E-150 & 07 Kawasaki ZX-6R
Engine: A slow one & a fast one
Transmission: A bad one & a good one
Axle/Gears: A weak one & a chained one
I gotcha.. While what you're saying makes sense, I just don't think these cars have enough power for that to really make much of a difference at all. I think how that transmission wears is going to mostly depend on if it's got a cooler or not, how often you go WOT on the car, and whether you do burnouts in any gear other than 1st. Doing a burnout in D is not a good idea...the car shifts into 2nd, maybe even 3rd gear..and when you let off the brake, the car rolls forward and as it gains traction, puts EXTREME stress on that gear because the car doesn't have the speed to support such a tall gear.

Also...700-R4's run hot by nature. A tranny cooler is ABSOLUTELY ESSENTIAL EQUIPMENT if you want your transmission to last. Not to mention they're cheap..$50 or so for a damn decent one.

YES ANOTHER add on: Hydraulic pressure and having good fluid at the right level and a good filter helps a lot too. A maladjusted TV cable will throw pressure outta whack and blow a 700-R4 like MC Hammer blew his money.

Last edited by Nixon1; Feb 28, 2003 at 05:57 PM.
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Old Feb 28, 2003 | 07:15 PM
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Car: 1990 Pontiac Firebird
Engine: 3.1L v6
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damn we went way off topic on this but how do u install a tranny cooler?
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Old Feb 28, 2003 | 08:03 PM
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From: Dubuque, IA
Car: 2006 'Nox 91 Camaro RS 91 1500 Silv
Engine: GM 3.8L, 305 SBC, 350 SBC
Transmission: Auto, auto, auto
do u guys know what you have to do to compression test an engine that is still in the car??.....like what do I hafta unhook so I don't get problems...cuz i sure wouldn't want gas and or spark in the other cylinders.
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Old Feb 28, 2003 | 08:04 PM
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Car: 95 E-150 & 07 Kawasaki ZX-6R
Engine: A slow one & a fast one
Transmission: A bad one & a good one
Axle/Gears: A weak one & a chained one
Ha ha yea...seriously... I've never installed one..my car had one installed by the previous owner..but I hear it's pretty simple. Mounts to the front of the radiator, run a few lines up, that's about it. I'm sure someone can tell you, or you can find an instruction guide somewhere.
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Old Mar 1, 2003 | 10:20 PM
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Guys, I'm pretty sure I know the answer, but I want your answers. This WOULD work on a TPI 305, right? I can honestly see no reason why it wouldn't, but I'm just trying to make sure.
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Old Mar 1, 2003 | 10:59 PM
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From: Palm Bay, Florida, USA
Car: 95 E-150 & 07 Kawasaki ZX-6R
Engine: A slow one & a fast one
Transmission: A bad one & a good one
Axle/Gears: A weak one & a chained one
TPI is basically the same damn thing as MPFI, correct? One injector per cylinder? No reason why it wouldn't work that I can see either.
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Old Mar 1, 2003 | 11:07 PM
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Car: 2006 'Nox 91 Camaro RS 91 1500 Silv
Engine: GM 3.8L, 305 SBC, 350 SBC
Transmission: Auto, auto, auto
Yes

As far as i know....this works on EVERY engine. All you need is some way to get it into the air intake....so vaccuum system on injected engines, and a spray can with an open carb on carbed engines. Anyone correct me if I'm wrong, but I think this should work on all engines.
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Old Mar 2, 2003 | 09:35 AM
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Car: 1991 Camaro RS Vert
Engine: 350 S-TPI
Transmission: T5
Axle/Gears: GU5/G80/J65
I belive I would be more worried about my spark plugs being gunked up rather then something in my oil!!!!
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Old Mar 2, 2003 | 05:18 PM
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Originally posted by TekViper
v6 should easily break the tires loose on dry pavement from a dead stop, at least a 3.1 not sure how much different the 2.8 is. have u done another compression check to see if those 2 cylinders went up? i bet some carbon deposits on the valves was leaking some air. might have to do this one day, sounds fun
Haha, try it with P255/70r15's, my old rear tire size. Then I went to P275/60r15's; those didn't break away, either. Now that I'm running P245/60r15's, I can get 'em to spin for a bit without doing a breakstand; just nailing the gas from a stop. Much more fun!

I installed a B&M Supercooler on my car back in '97; yep, simple as could be. Came with fittings so I didn't have to cut my factory trans cooler lines. I also installed a Summit remote trans filter. It goes inline with the cooler. I tapped into the return hose from the cooler to install the filter. The thing uses a big AC filter, #PF-1.
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Old Mar 2, 2003 | 05:49 PM
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Car: '99 Trans Am, '86 Camaro
Engine: LS1, Scrap
Transmission: T56, T5
Axle/Gears: 3.42 Stock ZT, 3.42 Open
I've got a 16 pass cooler in my 8.. very simple install job.. just test your mounting location. After I was done with mine and went to bolt the hood latch back in I discovered I couldn't add the bottom bolt to the hood latch.. by about an inch.

'course, that's fixable too.. inch or two spacer bushing and inch or two longer bolt.
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Old Sep 28, 2003 | 11:36 AM
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that website is down, what did it say to do to clean your valves
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Old Sep 28, 2003 | 11:41 AM
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Car: 1988 Chevy Camaro Hardtop
Engine: Turbocharged/Intercooled 3.1
Transmission: World Class T5 5 Speed
Same here... what was the scoop?
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Old Sep 28, 2003 | 02:43 PM
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From: NWOhioToledoArea
Car: 86-FireBird
Engine: -MPFI
Transmission: T5
Axle/Gears: 3:42
http://v8buick.com/showthread.php?threadid=24316

Lots of good info in that thread aobut it. A few GM techs chime in and other stories about using water, brake fluid or tranny fluid to do the same thing.

Matt

Last edited by Gumby; Sep 28, 2003 at 03:00 PM.
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