2.3 stroker or 2.0? Pros-Cons

[dsm_ftw]

So I have read several articles and debates on whether or not to stroke an engine. Most of the arguements seem to be based on the breathability of the stroker engines. I want to create a list of pros and cons between the 2.0 and the stroked 2.3.

2.3L Stroker Pros
1. More Displacement. Almost 18% more displacement.
2. More low/mid range torque.
3. More tolerant of aggressive cams.
4. Faster spool up.
5. Higher effective compression ratio.
6. More tolerant of timing advance and lower octane fuel.

2.3L Stroker Cons
1. Higher native harmonic imbalance.
2. More sensitive to engine balance.
3. Lower RPM potential from higher piston friction from side loading and velocity.
4. Higher tension loads on rods, both in tension and bending.
5. Volumetric Efficiency drops off at lower RPM’s than 2.0L

If there is anything else you can think of please list them.

Sources:

http://www.kidzuku.com/StrokeOrNot.pdf
and TunaTalon for giving me the link.
The PDF has a whole list of sources to back this information and instead of listing those I decided to link the PDF.

 

[sprmotohooligan]

you must be the "situation" i also stated that this is my opinion everyone has different methods to making horse power. by the way Ducati's v-twin cant compete with honda or yahmaha 4 cyl bikes. This is fun

That would be false. I'm sure his vocabulary does not possess words such as "cunning" and "produce." I see the Jersey Shore stigma has rooted itself across the country.

In my former post I quoted how you stated you had a theory, which you than said is a fact, which finally stated you proved a point.

I am merely requesting what your theory is, what the technology you speak of is, and what is the point you proved.

BTW you should take a look at the WSBK standings. 4 wins out of 6 races seems quite competitive to me.

 

[donniekak]

That would be false. I'm sure his vocabulary does not possess words such as "cunning" and "produce." I see the Jersey Shore stigma has rooted itself across the country.

In my former post I quoted how you stated you had a theory, which you than said is a fact, which finally stated you proved a point.

I am merely requesting what your theory is, what the technology you speak of is, and what is the point you proved.

BTW you should take a look at the WSBK standings. 4 wins out of 6 races seems quite competitive to me.

The ducati's also get 100cc's more displacement than the inline 4's, to make it fair.

 

[TunaTalon]

If race performance was just a little relevant to the design of 4G63s to be street driven I might point out that:

1. To get the max HP/Displacement you need to max AirFlow/Cylinder.
2. To get more air into the cylinder you need more ValveArea/CylVolume.
3. The pentroof head is already near max ValveArea/Bore.
4. The answer is to shorten the stroke for less volume for the same valve area.
5. Now you have a short stroke race engine that can rev high.

Which drives the design, the need for high RPM, or more air flow?

Which came first, the chicken or the waffle?

 

[phunny]

If race performance was just a little relevant to the design of 4G63s to be street driven I might point out that:

1. To get the max HP/Displacement you need to max AirFlow/Cylinder.
2. To get more air into the cylinder you need more ValveArea/CylVolume.
3. The pentroof head is already near max ValveArea/Bore.
4. The answer is to shorten the stroke for less volume for the same valve area.
5. Now you have a short stroke race engine that can rev high.

Which drives the design, the need for high RPM, or more air flow?

Which came first, the chicken or the waffle?

Easy, the waffle. Who eats chicken for breakfast?

 

[gyd23]

Easy, the waffle. Who eats chicken for breakfast?

That's awesome, probably the best thing I've heard all day. Very true though.

 

[donniekak]

Easy, the waffle. Who eats chicken for breakfast?

You haven't ever had chicken and waffles.

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[TSIMonsteR]

You haven't ever had chicken and waffles.

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I know... these guys must have not visited the deep south often! fried chicken for breakfast = love

 

[dsm_ftw]

I know... these guys must have not visited the deep south often! fried chicken for breakfast = love

HAHAHAHAHHA I love this!

 

[phunny]

Hahaha I stand corrected. Apparently the south are some chicken eatin mofo's

 

[TunaTalon]

Donniekak you got it. High flowing heads and short strokes go together like chicken and waffles. You can get either one alone but they're really fine together, especially if you're trying to build a race engine or put on a few pounds.

Nummmmmm

 

[beachbum2185]

aren't stock turbo dsm trannys good for about 450 hp? if you can afford to get well over that, i'm sure about $1k won't kill ya to beef up the tranny some.

it just depends on what the OP is looking for as far as HP goals. you can get just as much hp out of a 2.3 as you can in a 2.0, depending on what your budget is and a good tune. ken davis hit just over a 1000 hp (1017 i believe) with his 2.3. yes he had a lot of money into it, but i highly doubt that the OP is looking to build a dyno queen. as for cost goes, a stroker kit can be pieced together a lot cheaper than what most may think. it can be done for maybe 1500 at the most if you do some looking around.

 

[DSM_munky_man]

Both jackson machine has one for 1585 and change for a 2.3 and MAP has Them for 1600 or so as rotating assemblies. You can get a fully built block and rotating assembly for around 2k from a SIM in a 2.3.

 

[TofastForU_99]

Both jackson machine has one for 1585 and change for a 2.3 and MAP has Them for 1600 or so as rotating assemblies. You can get a fully built block and rotating assembly for around 2k from a SIM in a 2.3.

Yes just shoot us a PM if you are interested in a 2.3L stroker we have a special on them this month and can work deals if you would like a head included. We also have a few different variations of the 2.3L that no one else has.

http://www.dsmtuners.com/forums/vendor-announcements/400202-where-power-held-where-made.html

 

[DSM_munky_man]

Hey I would like some pm about your specials. I am talking to viperlp01 and asked bout prices of what we discussed and would like to here from him to see where we are at and what he specials include.