Bolt on power enhancements, what would be your first choice? Options

[jwalters]

6 years and still running perfect! 2.0 4cyl. Bosch CIS KKK 26 turbo. 9lbs. of boost on the street 200 HP, 14lbs. on 100 octane race fuel on the track (IMG:style_emoticons/default/driving.gif)

Hey, what head temps do you get??

[jwalters]

(IMG:style_emoticons/default/dry.gif) Boy, over 1100 views and only 86 votes ,

No wonder this country is in the pits - - (IMG:style_emoticons/default/dead horse.gif)

[ChrisFoley]

Turbos are great for big hp gains but if you are competing in AX or time trials a turbo is going to bump you up to a higher level of competition. Not only that, adding a turbo isn't currently available as a bolt on since there are no complete kits available. A good deal of fabrication, including welding is required.
Engine conversions take too long and usually involve too much fabrication to be considered bolt-on IMO.
Tires are not a power enhancement. They only increase cornering potential, not acceleration.
Driving lessons are not a power enhancement, only a driving aid.
In reality there is only one choice for the most effective 914 bolt on power enhancement, and the poll supports this. The only other way to make much more power with a N/A engine is to split the case and put in a new camshaft along with everything else that entails.
Oh, and the upgraded exhaust system is a big plus if you do install a fatter cam. (IMG:style_emoticons/default/happy11.gif)

[nein14]

head temp stay between 325 and 350, oil 180 to 200 degrees

[race914]

I bolted on some 'Tornados' and kicked ass on local outlaw yugo gangs


(IMG:http://lib.store.yahoo.net/lib/rodi/images.ProductShot1.jpg)

[p914]

(IMG:style_emoticons/default/dry.gif) (IMG:style_emoticons/default/dry.gif) (IMG:style_emoticons/default/dry.gif) (IMG:style_emoticons/default/dry.gif) (IMG:style_emoticons/default/dry.gif)
Let's see. A simple bolt on power enhancement would be a bigger engine!! (IMG:style_emoticons/default/chairfall.gif) (IMG:style_emoticons/default/chairfall.gif) (IMG:style_emoticons/default/chairfall.gif)
Unbolt the old one and bolt on a bigger one. (IMG:style_emoticons/default/jsharp.gif)

[maf914]

917 flat 12?

Yeah, could have chosen the 16, but that would be overboard!

For the 917/10 Can Am car, Porsche decided that the way to go was to turbo the flat 12 and discontinue developement of the flat 16 cylinder engine. They then applied this experience with turbocharging to various 6 cylinder based racing cars.

[maf914]

Technically the 917 engine was not a flat 12, it was a 180 degree V12
I know, picking nits again.

Sammy, Could you please explain why you make this distinction? Just curious. (IMG:style_emoticons/default/idea.gif)

[Sammy]

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[Sammy]

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[messix]

a 'V ' designation for an engine configuration implies that the engine has its cylinders set in a "V" angle opposed to each other.

a flat or horizontally opposed engine implies that the cylinders are split and opposed from each other.

these desiganations have nothing to do with shared rod journals or the number of main journals.

[messix]

From Wikipedia,

A flat-12 is an internal combustion engine in a flat configuration, having 12 cylinders.

The flat-12 engines are generally not true horizontally opposed engines (boxer), but rather 180° V-engines. A true boxer has one crank pin per piston, while in the 180° V-engine two pistons share the same crank pin. With twelve cylinders both layouts are perfectly balanced.

(IMG:style_emoticons/default/WTF.gif) (IMG:style_emoticons/default/bs.gif)
Flat 12 engine
From Wikipedia, the free encyclopedia
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The Flat 12, or "Boxer 12" as it is sometimes called, is an internal-combustion engine which employs twelve cylinders aligned in a horizontal fashion. This engine is similar to the more common V12 engine, except for the fact that the twelve cylinders are aligned horizontally so that the engine is for the most part "flat", hence the name

[Sammy]

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[Mueller]

From Wikipedia,

A flat-12 is an internal combustion engine in a flat configuration, having 12 cylinders.

The flat-12 engines are generally not true horizontally opposed engines (boxer), but rather 180° V-engines. A true boxer has one crank pin per piston, while in the 180° V-engine two pistons share the same crank pin. With twelve cylinders both layouts are perfectly balanced.

Sammy is correct as per the Airframe & Powerplant Mechanics Powerplant Handbook, page 11. (IMG:style_emoticons/default/biggrin.gif)

Printed by the US Department of Transportation, Federal Aviation Adminsitration

[jwalters]

Has anybody seen the article of the dude that took two kawasaki six cylinder blocks ( upper case halves) and made a new crankcase and had falicon make a new crankshaft to become a V-12 motorcyle engine??


2600 cc's of 14000 rpm fury!! Somewhere on the order of 300 HP, normally aspirated -

(IMG:style_emoticons/default/idea.gif)

Imagine THAT engine with a stout enough crank mated in a teener chassis...

Talk about bragging rights!

[JPB]

I think the cheapest way is to install a 911 250MPH speedo meter and just tell everyone its a screamer and that you drive the speed limit because you are a good citizen.

(IMG:style_emoticons/default/beer.gif) You want real hps? Bolt on a V8 or a suby 2.5 WRX STI.

[messix]

From Wikipedia,

A flat-12 is an internal combustion engine in a flat configuration, having 12 cylinders.

The flat-12 engines are generally not true horizontally opposed engines (boxer), but rather 180° V-engines. A true boxer has one crank pin per piston, while in the 180° V-engine two pistons share the same crank pin. With twelve cylinders both layouts are perfectly balanced.

Sammy is correct as per the Airframe & Powerplant Mechanics Powerplant Handbook, page 11. (IMG:style_emoticons/default/biggrin.gif)

Printed by the US Department of Transportation, Federal Aviation Adminsitration

who would call a engine that has not have its cylinders at an angle of 180 degrees a "V" engine? maybe i missed that day in geometry where when two points 180 degrees from each other intersect at a common point between them on the same plane can be called a "v" tangent.

as for the engine configuration an engine that fires at 180 degress would only fire a power stroke at 0 and 180 degrees[6 cyl. at a time]. is this what they are saying? or does it fire every 60 deg. [2 cyl at a time]? or 30 deg. 1 cyl. at a time?
if your talking about how the crank is cofigured a share rod journal as opposed to non- shared doesn't matter, it would just make the case length longer. the firing order and timing do not make an engine that has its cylinders 180 deg. to the crank shaft a "v " engine.

i'd like to see that A&P section scanned.

no wonder ariplanes fall out of the sky.

[eeyore]

The flat-12 engines are generally not true horizontally opposed engines (boxer), but rather 180° V-engines. A true boxer has one crank pin per piston, while in the 180° V-engine two pistons share the same crank pin. With twelve cylinders both layouts are perfectly balanced.

The problem with this definition is that it implies that 'V' configuration and '1 crankpin for each pair of cylinders' are synonymous, and this isn't the case. "Two cylinder, V shaped engines with separate crank pins for each cylinder are more properly called "V-2" engines, however, proper identification of V-2 engines is uncommon."

[messix]

Sigh, it's on the web so it must be true.

i wonder how you and i both quoted the same source with different definitions.

[Mueller]

I'll have to see if I can find my notes from school where we discussed this issue with the boxer verses "V"...it has to do with the "throws" and shared journals....it really depends on the crankshaft, so you yes, you can have a true 180° flat 12 and you can have a 180° flat "V" 12...the former crank design is not as common

and it was not discussed in geom. it was the Powerplant/Engine class....