[kevinoneill]

The H22 crank uses 55mm jounals? wow, and the k24a uses 22mm journals? is that right? Thats a huge difference...

Good Info Import builder :up:

 

[Turbo9Nut]

You could use a H crank in the K, snout modification, and use H rods and it would work. H rods are 5.630 long. The stroke is 90.7 MM. Like a new gen S2000. Which is why people want to use the new gen S2000 Crank in a K20, which would be a very fast combination on a track. On the street, I would use a 2000 Shorter S2000 crank, which is I think 84 MM. That would work better, and give you mroe MPH in each gear, with the added RPM. With the TQ taken away, and a taller tire, it would be the faster street car 0-60.

Jeff

So I can use the H22 crank and rods in my K20 to make it ~2.15L?? Will the H22 rods fit the K20 pistons?

 

[rarson]

The H22 crank uses 55mm jounals? wow, and the k24a uses 22mm journals? is that right? Thats a huge difference...

Good Info Import builder :up:

No, the 22mm number is the wrist pin end of the rod. 55mm is the number of the big end. The K24 uses the same diameter rod journal as the H22, but the H22 journal is wider.

 

[signalpuke]

With all of the talk in the All motor forum at the moment I thought I would bump this one up, some good topics for dicsussion

 

[jdmhatchturbo80]

how about if i'm use H22 rods with some modification to put my k24 cranks to run k24a/k20 set up..

will it work ?? i ve heard it s perfect ratio stroke???

 

[H2nr]

dont forget about the 97mm F23 crank and if I remember right you can only use the H22a4 crank in the Ks.

 

[Flash202]

would any of these theories change for a forced induction vehicle?

 

[Import Builders]

Yes, it would, with the boost, it would want longer rods no question and for a FWD it would want a shorter stroke.

But the HP would be nominal, so the best combination that makes sense is a K20 with stock bore, stock geometry. Custom rods, pistons, cranks is all a total waste of time for street purposes value wise.

If you wanted something special and slightly better, then you put the 84 MM S2000 crank in the K20 block with some Prelude rods, and thats the best you can do without custom parts for a turbo. But this is not a good value compared to the stock geometry. Its just special, and slightly better.

So my advise is, build a K20 with pistons and rods with the stock crank. K24 is terrible for boost in FWD, and people are learning this daily. Its too much HP at too low of an RPM. All motor K24's are already terrible 0-60 as it is, and you want to add 400 lbs of torque? Makes perfect sense huh. Smaller the crank the better generally, less displacement, not more.

Jeff

 

[RsxJai]

How much would it cost to get a crank totally balanced? Yes I know the K20A/A2/Z1/Z3 and K24 cranks are all fully balanced.

 

[Import Builders]

Some people charge $100. Stock they are balanced to say 2-6 grams internally.

Jeff

 

[6spd_EK]

Jeff - any word on the s2k cranked motors you have built? how are they holding up? are any of them in street cars?

 

[Import Builders]

I do not know, I sold all the parts for 2 of those in 2005. I know 1 was sold to somebody else who doesn't even know me. Haven't kept up with that, there is no market for that, its just for novelty really, its not going to be that much better than a K20 as is. Just nominally. I just did 2 kits for the heck of it. They were both all motor in like 14:1+ compression, large bore sizes. It was just one of those things I did to be the first one type of thing. Its just cool to do mostly, its not going to be anything people are doing soon, its too expensive with too many custom parts. And people who are at the top of their field in their area know well, very well...that when you introduce custom pistons, custom cranks, etc, time just goes on and on and on...better to use all shelf parts unless your trying to break records or something.

Jeff