A way to get more power?

FluKy15 · **Joined:** February 11th, 2015, 2:22 am **Posts:** 277

DoktorC wrote:

FluKy15 wrote:

DoktorC wrote:

87 octane makes the most power out of the pump if you can stay off the knock sensor...or (in Boomer's case) not have your motor eat itself...

How would 87 make more power than 94?? With 94 you can advance the timing so much further and gain that extra few ponies.

REEEAD...if you can stay out of knock and keep your motor together it makes more power. Your motor is designed for 91 so you're not likely getting away with running less. That being said if you're upping your tune to deal with premium...

That would be an interesting dyno test though...timing limit on 87 how much power vs. timing limit on 91 hp.

With a higher octane a higher compression can be used, advanced timing. I know on my car, running 94 can get me about 2 more degrees of timing, but I refuse to tune for 94 in case I can't find a gas station with 94. I have no gain in running 94 on my 91 tune.

Even with an ECU stock, designed for 87, a better burning fuel of 91 I would have thought would burn better, have a cleaner explosion, there for having an extra HP or so no? Even if it's just 1, I doubt it would be less, is all I'm saying.

DoktorC · **Posted:** March 27th, 2015, 2:19 pm

Unless you have compression and or timing to take full advantage of the octane you get no added power from 91. The higher octane content makes it harder to ignite....which is a plus if you've got compression but it doesn't make power or burn cleaner. Everyone thinks 87 is crap fuel...pure marketing...it's just easier to ignite lol.

94 is oxiginated as well...which you can make more power with..

FluKy15 · **Joined:** February 11th, 2015, 2:22 am **Posts:** 277

Oh I see what you're saying. Because the 91 fuel doesn't ignite as easily it can potentially lose horsepower if it isn't being ignited at the point in the stroke that the motor is designed for. 87 isn't that crap of a fuel, it's cheap and affordable

. The summer of 91 fuel is gonna kill me... 400km per tank... Here we go again...

beavertonae-21 · **Posted:** March 27th, 2015, 2:51 pm

DoktorC wrote:

beavertonae-21 wrote:

X2 on the snake oil. As far as the "dyno numbers some of these companies claim for their miracle products, you can add a litre of turpentine to your cars oil after lowering it a litre first and you will see a noticable power difference on the dyno. Does this mean we should , hell no. I am not saying all additives have no use, I use de-carb or ring free from time to time as well as the occasional bottle of sea foam . Of coarse this is strictly for Yamaha motors. Mercs need ALL the help they can get!!!! there you go... the pot is stirred......
Steve

For the Opti guys don't forget "compressor in a can"...should help when the compressor decides it doesn't like its internal parts on the inside anymore :mrgreen:

.

You NEVER disappoint buddy :lol:

I better watch my comments and hope my 1988 carbed Yammi lasts this season at 6800 plus rpm :shock:

prett sure it will lol

DoktorC · **Posted:** March 27th, 2015, 2:54 pm

beavertonae-21 wrote:

DoktorC wrote:

beavertonae-21 wrote:

X2 on the snake oil. As far as the "dyno numbers some of these companies claim for their miracle products, you can add a litre of turpentine to your cars oil after lowering it a litre first and you will see a noticable power difference on the dyno. Does this mean we should , hell no. I am not saying all additives have no use, I use de-carb or ring free from time to time as well as the occasional bottle of sea foam . Of coarse this is strictly for Yamaha motors. Mercs need ALL the help they can get!!!! there you go... the pot is stirred......
Steve

For the Opti guys don't forget "compressor in a can"...should help when the compressor decides it doesn't like its internal parts on the inside anymore :mrgreen:

.

You NEVER disappoint buddy :lol:

Friends don't let friends drive junk pal... :mrgreen:

idvette · **Posted:** March 27th, 2015, 6:20 pm

DoktorC wrote:

That would be an interesting dyno test though...timing limit on 87 how much power vs. timing limit on 91 hp.

Then try propane....

DoktorC · **Posted:** March 27th, 2015, 6:25 pm

Nitro propane??

idvette · **Posted:** March 27th, 2015, 10:41 pm

http://blog.amerigas.com/commercial-pro ... ning-fuel/

BoomerMuskoka · **Posted:** March 27th, 2015, 11:22 pm

https://www.youtube.com/watch?v=98RZNbr8QII

BoomerMuskoka · **Posted:** March 27th, 2015, 11:25 pm

DoktorC wrote:

Snake oil....but....there's LOTS of fuel additives that do make LOTS of power...most of it eats your brain though.

87 octane makes the most power out of the pump if you can stay off the knock sensor...or (in Boomer's case) not have your motor eat itself...

hey that only happened once from bad gas

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A way to get more power?

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