KA24DE de-stroking kit

[WDRacing]

If the KA can rev to 8K with some shims or new springs...why do all this other work? Give me a budget you're going to use to machine the block and buy all this other crap and I'll make more power then you can per dollar spent.

Let us not forget that the intake manifold will have to swapped, the valves will need to be enlarged and you'll need cams big enough to flow at 10K rpm...which will destroy the bottom end.

Want 10K, buy a Honda.

To much talk and not enough reality. Speculation and bench racing is for people that don't ever DO anything.

Destroking is an awful idea...awful. I could pick apart this idea for days and never run out of reasons why it sucks. If it was a good idea, people would be doing it...guess what, they aren't.

WD

[Fahaka]

I'm not claiming to have done this. I personally wouldn't. I chose to build an SR. I was dead set on building a KA until I got a good deal.

The differences between the two boil down to the SR having a better crank...everything else is a wash.

The op said he wanted to know how it was done. To the best of my knowledge it has...mostly by 510 guys.

So far I am the only person who actually answered the op's original question.

Whether or not it is a good idea is up to the op. Greaser chose to build a na ka and he has indeed broken the 200whp mark...maybe op has some salt...I don't know. I just passing along the info.

As for reality 480...oh you are just so much cooler than I. Forgive me for passing along this info.

[480sx]

A VE head is nowhere NEAR a bolt on affair on a SR.

I knew that much, but your saying that its lest cost effective than just doing a solid lifter setup on a DE head? That i didnt know.

As for reality 480...oh you are just so much cooler than I. Forgive me for passing along this info.

Why would i want/need to forgive you for that? Its not like you really needed to tell me that anyway, but ill let it slide this one time.

[WDRacing]

So far I am the only person who actually answered the op's original question.

He asked if there was a Kit...there isn't. THAT was his question...so you didn't answer anything that we didn't. You said he could piece together some other stuff along with machine work etc...blah. Then said someone else had done it...but we haven't seen or talked to a single person that HAS done it. SO as far as I care....it can't be done.

Do it yourself or don't. As far as SR advice, give it in the SR forum.

Anymore SR talk gets deleted...has nothing to do with this forum or thread.

Anyone else wanna talk about the most retarded idea that has been thought up? No...good.

[Fahaka]

He asked if there was a Kit...there isn't. THAT was his question...so you didn't answer anything that we didn't. You said he could piece together some other stuff along with machine work etc...blah. Then said someone else had done it...but we haven't seen or talked to a single person that HAS done it. SO as far as I care....it can't be done.

Do it yourself or don't. As far as SR advice, give it in the SR forum.

Anymore SR talk gets deleted...has nothing to do with this forum or thread.

Anyone else wanna talk about the most retarded idea that has been thought up? No...good.

Wow WD! Now you are just picking knits. Good going Mod

[480sx]

As if your not with your BS about you being the only one to answer his question. Vastly superior to the rest of us with your limitless knowledge of hypothetical this and crap you think you may have read on the interwebz 5 years ago that.

Greasers runs are all on a dynojet i might add.. To take nothing away from his toils. N/A hp on a Ka is very difficult to obtain.
Modified by 480sx at 10:50 AM 4/19/2009

[WDRacing]

Wow WD! Now you are just picking knits. Good going Mod

Email the owner and tell him that WD is a big meanie. He needs a good laugh... [email protected]

He owns a KAT Vert, bout 400whp...ask him if he thinks destroking is a good idea.

WD

[D-UNIT]

You guys are all freakin Dkheads. All of you. Hell even me. I opened this thread for some interesting albeit useless info and all I find is b1tching and moaning. If I wanted that I would just watch The View. AH COME ON!!

[Fahaka]

dude, I've pulled the motor out of Greg's vert, I've ridden in it, he has ridden in mine, our kids are friends and I have his # on speed dial. I wouldn't bother him about you though...
Modified by Fahaka at 2:01 PM 4/19/2009

[WDRacing]

Wow...his number is on your phone. Awsome...

I could go on about being called Crazy Uncle Brian to his kids, driving his wife home from chemo etc...but what does that have to do with this? I'm not trying to be a d!ck...you said I was a bad Mod, I told you to contact the owner about it. I don't care if you know him or not. Did you go to his wifes funeral? If you stayed I probably had beers with you afterwards for f's sake. Been to Nopi PHX? I would have met you there as well.

People are simply saying that this mod is retarded. I happen to agree 100% Cause it is.

This is right up there with what motor is better, sr or ka. Why destroke a ka when you can buy an SR? Why make an engine designed to be a 2.4 from crank to intake manifold smaller? There by destroying the design entirely...which will require everything to be rethought, cams/intake...etc.

It's an awful idea. If you think it's not then you're sitting beside what...one dude that supposedly pulled it off? And for what gains?

It doesn't matter whether we answered the question, it matters that we're telling somebody that he shouldn't waste his money and we're giving valid reason why. It's the same thing with people that ask what manifold to get for the T70 they just bought, the answer being sell the T70.

WD

[hannibal]

THis idea has been kicked around, talked about, and dreamed of since I started reading the forums back in 2001. Around that time, someone (i think deviousKA) had done lots of reasearch and had a webpage explaining the different components. The page is gone, but I would ask deviousKA about it. I havent seen him on NICO in awhile, but I think he runs hybridKA forums now.

Ive heard rumors about the KA20 (same bore, shorter stroke i think)available in some Nissan panel van. Never heard of someone actually obtaining this motor. As far as I'm concerned, destroking a KA24 is an internet legend. Not that it cant be done, just that those who have spent time looking into it have chosen other paths. That should be a hint...

[WDRacing]

You guys are all freakin Dkheads. All of you. Hell even me. I opened this thread for some interesting albeit useless info and all I find is b1tching and moaning. If I wanted that I would just watch The View. AH COME ON!!

So you have two usernames?

[D-UNIT]

Don't we all. Haha. I should make it DH-unit. And u could be Whatta D. ROFL - hurt myself.

Btw nice save up there^^ I was sad I had to put my popcorn away.

UR a good Mod , I mean atleast your around. But I thought it was super funny when you said "People are simply saying that this mod is retarded. I happen to agree 100%" I thought U were talking about yourself for a second. Too funny.


Modified by D-UNIT at 8:22 PM 4/19/2009

[seang]

Nissan South Africa produces a ka20de because of tax exemptions. It can be found in the Nissan Hardbody 2000i, and Nissan Hardbody 20i. They are actually boosting production despite the bad economy. check out http://www.um.co.za

[WDRacing]

Don't we all. Haha. I should make it DH-unit. And u could be Whatta D. ROFL - hurt myself.

Btw nice save up there^^ I was sad I had to put my popcorn away.

UR a good Mod , I mean atleast your around. But I thought it was super funny when you said "People are simply saying that this mod is retarded. I happen to agree 100%" I thought U were talking about yourself for a second. Too funny.

Modified by D-UNIT at 8:22 PM 4/19/2009

More then one account is against the rules, so your other one is now banned. DO NOT make another.

WD

[Fahaka]

Sensitive...maybe. I Can take it though. No sense in anyone over reacting to this idea either. If some guy wants to do it...why not let him try. I personally would like to see the results.

As for WD's reasons for not doing it...I still don't see a valid argument other than it hasn't been done so don't do it.

The benefits that I can see are two fold:

1. the l20b crank is fully counter-weighted.2. decreased piston speed.

I think decreased piston speed is more relevant than counter-weighting (see below) and that by reducing the piston speed you open up more options.

As for the modifications to the head and manifold I am assuming a high rpm ka is going to get lots of head work and itb's or some other flow work anyway. To say that it isn't possible or necessary isn't true.

As for the high hp na ka, Greaser has said that he doesn't think the issue is there to justify a fcw crank...I'd still like to see the results. He also said that he can't see spending the $3500 to get a bc fcw crank...so this might be a cheaper alternative to explore...I don't know. His thread hasn't been updated for a while.

As for the op, like I said before, maybe he has the ability to do this...maybe not. If Brian Blake built a twin cam l28 with "ka heads"...with skill an knowledge someone can do this.

I am not going to jump on a popular opinion band wagon until I see all the results. Two years ago most people said a 200+whp KA wasn't possible...they were all wrong. So saying this won't work is not right and attacking me for providing what might be useful information is just that...jumping on a band wagon.

[WDRacing]

No one is attacking you. You started being obnoxious before anyone else in this thread. Calling the one dude a noob and telling him not to come back...then you said I was insulting you. Bit of a double standard no?

To really discuss why you'd do this particular mod you'd need to have an end goal. Which we do not...so comparing the 2.4 to a destroked version is kinda lame until we decide what the motor is being built for.

BTW, there is no need to worry about reducing piston speed if you don't rev the piss out of the motor. So that isn't a valid argument for the destroke mod.

I'm not trying to stifle creativity, I'm just a realist. Wanna waste a ton of money for basically a possible gain, albeit marginal...go ahead. If money is no object then we can use custom titanium rods/fcw crank and keep the 2.4 stroke with a 10k redline. But there has to be limits.

WD

[D-UNIT]

You just named my dream KA. Pauter titanium rods ( $1200 each) , Fcw knife egded crank , WPC coated copper top arias pistons (9.5:1 cr) race gas daily = 9500 + rpm and 45psi of boost yummy!

but for that price a 20B sounds good too.

[Fahaka]

Ban? Seriously? Just one account, had it for years...

neither of your e-balls impress me. Why don't you two little ones go back to cutting yourselves...sheesh!

[WDRacing]

Apparently the ban didnt stick. Maybe it would work better if you got both his accounts?

I banned his one account. He still has access via the D-Gheyness account

[WDRacing]

Ban? Seriously? Just one account, had it for years...

neither of your e-balls impress me. Why don't you two little ones go back to cutting yourselves...sheesh!

Not you, the guy in THIS thread with 2 accounts.

[Fahaka]

ah...my mistake WD.

[WDRacing]

No worries

[Cap'n Morgatz]

I gotta go with WD on this one. I admit I don't know much about cars, but turboing the KA is going to produce a hell of a lot more HP than spending the ridiculous amount of time, money, and frustration necessary to try and shorten the stroke. An SR20DET would work just as well and be just as inexpensive. I mean, the creativity is great, but contrary to popular belief, "it's never been done before" is a valid argument in mechanics, unless you're like an engineering god. Until an expert manages to produce replicable results it's probably best to just go with what does work rather than risk ruining a good engine on what might--and then only if you're damn good at what you do.

[D-UNIT]

I banned his one account. He still has access via the D-Gheyness account

Whoa whoa WHOA! back the truck up! are u serious? I don't actually have two accounts. I was just making a joke about everyone being a D*** head and that I should change my name to D(***) H(ead) - unit and U could be W(hatta) D(***). It was just a joke , I hope there really isn't a DH-UNIT ( he is probably like ) cuz that is not me. That sucks! What, no one can take jokes anymore!?!

[WDRacing]

The internet doesn't express tone. So when a person is joking it's hard to understand. You said YOU bstarted this thread, but the username is different. I asked if you had multiple accounts, you said yes. How the hell is that joking? This is a tech forum, not gen chat. If you wanna screw around do it there. The adults are trying to have a conversation.

WD

[WDRacing]

This thread has been cleaned up for the sake of further discussion. Lets not digress anymore guys.

WD

[Zriuz]

look up castillo cranks , i had an H23 crank stroked by him back in 2001. i paid 600 at the time plus 200 to have my rod journals narrowed. if you are looking to get more RPMs out of the combo the Ka is not the motor for that. the head flows horrible and there ain't no CNC job that could fix that. if you want to give it a try go for it. i really like to see people step out of the box and not just jump on the cheap turbo bandwagon. I'm possitive that the 220hp mark could be achived on OEM rods and E pistons.
Modified by Zriuz at 10:24 PM 4/26/2009

[WDRacing]

look up castillo cranks , i had an H23 crank stroked by him back in 2001. i paid 600 at the time plus 200 to have my rod journals narrowed. if you are looking to get more RPMs out of the combo the Ka is not the motor for that. the head flows horrible and there ain't no CNC job that could fix that. if you want to give it a try go for it. i really like to see people step out of the box and not just jump on the cheap turbo bandwagon. I'm possitive that the 220hp mark could be achived on OEM rods and E pistons.

Modified by Zriuz at 10:24 PM 4/26/2009

Mind telling me how we have KA's making 800+ whp with the stock head then? The KA head flows quite well, the intake manifold is designed for low end torque and not rpm. So that is the bottle neck, not the head.

Regardless, a high rpm KA is a waste of money.

[ka-t 300]

Mind telling me how we have KA's making 800+ whp with the stock head then? The KA head flows quite well, the intake manifold is designed for low end torque and not rpm. So that is the bottle neck, not the head.

Regardless, a high rpm KA is a waste of money.

I agree, I would like for some one to explain why you would want to de-stroke the ka. I would like to see what is the purpose! if there is no purpose then why do it ? because your bored ? its simple, if you want revs go with a different motor, if you want some balls to the walls low rev. torque stay with the ka . please explain the purpose .