93Euphoria

Is seafoam a good way to clean carbon or is just a waste? If not what is a good product to clean out carbon buildup?

TAEnvy

iTrader: (2)

Ive used seafoam prior to top end dis-assembly, and was surprised about how clean everything was, dont know if it was from the seafoam or good gas, but its been around forever and alot of people swear buy it so I pretty sure it was from the seafoam.

I know guys who use a slow water drip, essentially steam cleaning the inside of your engine.

VAformula

iTrader: (8)

I love Seafoam. I've used it in all of my cars, and motorcycles and have had nothing but good results!

97z28K&N

I use Seafoam on all of my engines (cars and lawn equipment) and it works wonders. On my 2 stroke engines you can literally watch crap come out from the exhaust.

on my LT1 I noticed smoother idle and better MPG. I didn't do the vacuum line method though, I just put it all in the gas tank.

RamAir95TA

iTrader: (2)

Carbon buildup helps to increase compression.

F0x Slaughter

It also restricts flow which obviously increases intake velocity!

93Euphoria

Lol true but gee your screwing with my head wether or not I should go ahead and clean out the carbon. If not I will only hope I gain more power the dirtier my engine gets

SS RRR

iTrader: (2)

I wouldn't do it unless you were getting carbon knock.

Chevyguy358

iTrader: (4)

Just run alil E85 through it. I tore down an engine running that and it looked practically brand new. You can look up videos of this on youtube, its pretty impressive. Of course you might want to increase fuel pressure to compensate for the stoichiometry change.

F0x Slaughter

What in the hell?

Do not run E85 on a car that is not converted to run on it.
First off E85 you need to inject a lot more fuel.
So you would need a tune just run 1 tank or risk going lean.
Second compatibility issues, stock hose is not for alcohol fuels.
Most pumps aren't rated for it and you will destroy the pump.

You just can't run E85 in any car, without doing mods.

Also I see you are running a 12.4:1 on E85. Why on earth are you running E85 for a 12.4:1 compression?
Guys run 12.5:1 to one on 93 octane.

E85 has a octane rating of ~107 - ~110.
Same as race fuel, you could easily run 13:1+

93Euphoria

Wow E85 setup just to clean out carbon? Thats alittle overboard dont you think?! That is a $700+ job vs a $6. Might aswell just mix alil nitrometh and burn everything off including the little weak hyper pistons. lol I think ill just stick to simple seafoam & 93 octane like always. What additives does 93 have to clean out carbon?

Chevyguy358

iTrader: (4)

relax, it was a joke. And yes I would run E85 on 12.4 SCR, allowing to make your timing more aggressive will yield more power every single time, no brainer.

F0x Slaughter

Um if that was true there would be no point to running high compression you would just run like 5.1:1 and have a timing advance of like 60*.

Chevyguy358

iTrader: (4)

wow, man seriously. I wasn't stating that timing was the only factor in the hp equation, but provided CR was the constant in the equation then the most aggressive timing before detonation would yield more power...

F0x Slaughter

So once again we go onto the internet techs of dynamic compression ratios.
So sick of people talking about dynamic compression ratios. It is internet made up crap!

Heres from AIs website as quoted.

"Common marketing misdirection and fruitless (for the end user) talking points:

New vs. old "Lobe Technology"
Dynamic Compression Ratio ("DCR")
Subjective qualities (e.g. loping, valve train noise)
Assertion that X valve event must occur at precisely X degree ideally
Assertion that one aspect of a lobe form is "the secret" or most important characteristic."

Here is an article from Standford about Compression vs timing.
http://rescomp.stanford.edu/~efroeh/...erformance.pdf

Here is the end result snippet.

"The most important trends garnered from the above research are that better
performance is generally achieved at MBT, at slightly rich air fuel ratios and at high
compression ratios. To illustrate the synthesis of these trends we ran the engine with a
spark advance of 25 BTDC, at an equivalence ratio of 1.3 and a compression ratio of 9.
The IMEP achieved was 10.58 bar — about .5 bar above the highest IMEP attained during
our previous experimentation."

Slightly rich air/fuel ratios with high compression ratios.

Chevyguy358

iTrader: (4)

dude, it doesn't matter if your talking Dynamic CR or Static CR, just as long as you're performing an apples to apples comparison. Don't make this so convoluted. I'm done, good luck