A Stroke Question ?

[projectka-t]

I was driving today and was thinking about a post I read about a stroker kit for the KA24DE and I was thinking about how everyone was talking about the already long stroke that the stock motor has. so my question is does anyone make a shorter connecting rods ? If you had a shorter rod with a stroke = to the bore with a higher comp. piston would the KA-T stoughter ? If this is off baqse some one let me know ..... i have way to much time on my hands driving........ thanks everyone!

[Craving4Boost]

sorry i just gotta say it....your post sounds really perverted LOL

[Nismo_Freak]

I was driving today and was thinking about a post I read about a stroker kit for the KA24DE and I was thinking about how everyone was talking about the already long stroke that the stock motor has. so my question is does anyone make a shorter connecting rods ? If you had a shorter rod with a stroke = to the bore with a higher comp. piston would the KA-T stoughter ? If this is off baqse some one let me know ..... i have way to much time on my hands driving........ thanks everyone!

You can't shorten the rod, if you did that you would have a big issue with compression.

What you could do is source a crankshaft from a KA20DE in Japan and install that along with it's rods. I would use the stock 89mm bore pistons, and this will give you an effective 2.1L engine (~2140cc).

The configuration would give you a good amount more on the top end as far as rev limit, and overall engine response would be increased due to the lighter mass.

Though this is assuming the deck heights are tolerable between the two.

I honestly would stick with an SR20DET in this instance.

[Red coupe]

stroke = distance traveled by piston, so changing connecting rod doesn't do anything but move the piston up or down in the bore, with the stock distance between opposing rod journals the piston will still travel the same distance up and down...

[grimple1]

I agree with Craving4Boost. The jokes write themselves.

[DRIFTEADOR]

even if they shared the same deck height, which i'm sure they dont, the rods would have to be considerably longer which, along with the shorter stroke, would throw off the almost perfect ka24's rod lenght to stroke ratio to ****, all while still being an undersquare motor. what would be nice is if we could bore out to 96mm. perfect square, almost .4l displacement and a healthy ~1.72 r:s. but thats not gonna happen

[sanioll]

ahhhhhhhhhhhh,

you need to change the crankshasft. not pistons, rods.

in this case, you need whole new engine design. hit the drawing board for couple of weeks.

[projectka-t]

ok i phrased this one wrong... Just a brain fart i had on the road and was currious....

[Nismo_Freak]

ok i phrased this one wrong... Just a brain fart i had on the road and was currious....

No biggie, this is how the RB community put together the RB24, and other hybrid RB engines.

I plan to use custom pistons and rods in my SR20 build. Mainly because I'll be looking more towards engine response and revability vs. power.