Stroker kits for the Ka... - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

Drift Style S14 · 01-15-2003, 03:47 PM

Now I am just wondering what people think about stroking a ka. I personally think it can't be done, but a company i was talking to said that they are going to have one out for the ka by sometime in FEB. I have see how thin the walls between the on the ka are. They said that they are going to up the displacement to 2.5 or 2.6. I don't think it can be done, What do you think?

Drift Style S14 · 01-15-2003, 03:49 PM

oh and the company doing it is flatlander racing...

http://www.importperformanceparts.net

scroll down and you will see the advert. for it, I called them asking about there rebuilds, and the guy told me about the stroker kit. I still think it can't be done...

kandyflip445 · 01-15-2003, 03:57 PM

Correct me if I'm wrong but JUST a stroker kit would change the stroke and wouldn't involve new, larger, pistons would it? Maybe if it does then they will include new cylinder sleeves. But I doubt they will.

misnomer · 01-15-2003, 06:23 PM

The KA is already pretty well stroked. . . I can't think of a reason why it can't be done, though (without seeing the inside of the motor). You're looking at an 8% increase in size, divide that among four cylinders, you aren't looking at a huge increase in travel. I don't have the cylinder specs, and prolly wouldn't do the math even if I did. Anyhow, it'd be interesting to hear about.

AKADriver · 01-15-2003, 07:20 PM

I'm sure the factory built in plenty of room to grow in the KA for safety/durability reasons. My only question is... why bother?

misnomer · 01-15-2003, 10:09 PM

You would bother to give it more displacement, or N/A tuning. I can't imagine a good way for turbo, I think it would increase compression too much to be worthwhile.

AKADriver · 01-15-2003, 11:01 PM

The stroke is already 96mm, though. High piston speeds and tons of rod angularity, oh boy!

This is a case of diminishing returns, methinks. If someone can make decent power from a KA with over 100mm stroke, well, more power to them!

tnord · 01-15-2003, 11:24 PM

why in the world would you want to increase the stroke of the KA?? if anything, i would de-stroke that beeyotch and possibly gain myself some extra revs (ignoring valve float and whatnot). it's bad enough the engine acts like a truck engine, lets not make it like a friggin semi now.

blaqsilvia · 01-15-2003, 11:28 PM

Quote:

Originally posted by tnord
why in the world would you want to increase the stroke of the KA?? if anything, i would de-stroke that beeyotch and possibly gain myself some extra revs (ignoring valve float and whatnot). it's bad enough the engine acts like a truck engine, lets not make it like a friggin semi now.

lol

getta semi engine there- deisel and all that- lol - j/k

240racer · 01-16-2003, 12:05 AM

stroking the engine requires making a new crank. If it sounds like a good idea, then make us a shorter stroke crank too. I want a 2.2L 10,000rpm turbo machine. Here comes valve float...

*sykikchimp* · 01-16-2003, 07:39 AM

Quote:

Originally posted by 240racer
stroking the engine requires making a new crank. If it sounds like a good idea, then make us a shorter stroke crank too. I want a 2.2L 10,000rpm turbo machine. Here comes valve float...

ehh.. ain't nuttin' some stiff valve springs can't fix.

if your taking the time to destroke it, might as well get the Head done at the same time.

(lol... stroke my crank, and tune my head. )

matt0941 · 01-16-2003, 12:44 PM

Engine projects are always money pools. I have seen it said a hundred times, "As long as your going to ****, then why don't you *** and *** the *** while you **** the ****, and while your at it...". Personally I don't think the KA should be stroked, why not just hone the b*tch if your looking for a rebuild.

d240t2 · 01-16-2003, 02:38 PM

I talked about building a stroker KA once before. Crower makes custom stroker kits...pistons, rods, and crank. The QR25 in the new Spec V and Altima has the same bore as the KA, and a 100mm stroke. I never investigated...but I hoped the cylinder spacing would be the same; I could modify the crank and use it.

Dennis

SilviaDriver · 01-16-2003, 07:57 PM

Quote:

Originally posted by tnord
why in the world would you want to increase the stroke of the KA?? if anything, i would de-stroke that beeyotch and possibly gain myself some extra revs (ignoring valve float and whatnot). it's bad enough the engine acts like a truck engine, lets not make it like a friggin semi now.

i agree. i would rather destroke it. by destroking it i think you'd get a bit higher redline, and also hp.

01-15-2003, 03:47 PM	#1
Drift Style S14 Zilvia Addict Join Date: Sep 2001 Location: ............ Age: 42 Posts: 602 Trader Rating: (0) Feedback Score: 0 reviews	Stroker kits for the Ka... Now I am just wondering what people think about stroking a ka. I personally think it can't be done, but a company i was talking to said that they are going to have one out for the ka by sometime in FEB. I have see how thin the walls between the on the ka are. They said that they are going to up the displacement to 2.5 or 2.6. I don't think it can be done, What do you think?

01-15-2003, 06:23 PM	#4
misnomer Nissanaholic! Join Date: Jul 2001 Location: Nevada Posts: 2,293 Trader Rating: (0) Feedback Score: 0 reviews	The KA is already pretty well stroked. . . I can't think of a reason why it can't be done, though (without seeing the inside of the motor). You're looking at an 8% increase in size, divide that among four cylinders, you aren't looking at a huge increase in travel. I don't have the cylinder specs, and prolly wouldn't do the math even if I did. Anyhow, it'd be interesting to hear about. __________________ Rowsdower saves us and saves all the world!

01-15-2003, 10:09 PM	#6
misnomer Nissanaholic! Join Date: Jul 2001 Location: Nevada Posts: 2,293 Trader Rating: (0) Feedback Score: 0 reviews	You would bother to give it more displacement, or N/A tuning. I can't imagine a good way for turbo, I think it would increase compression too much to be worthwhile. __________________ Rowsdower saves us and saves all the world!

01-16-2003, 12:05 AM	#10
240racer Zilvia Junkie Join Date: Nov 2001 Location: Minneapolis, MN Age: 46 Posts: 574 Trader Rating: (0) Feedback Score: 0 reviews	stroking the engine requires making a new crank. If it sounds like a good idea, then make us a shorter stroke crank too. I want a 2.2L 10,000rpm turbo machine. Here comes valve float... __________________ Adam '89 coupe KA24DE+T 14.1 @ 104 MPH '88 Celica All-Trac turbo stock, but no more ecu codes!!

01-16-2003, 12:44 PM	#12
matt0941 Zilvia Member Join Date: Jan 2003 Location: Chicago Suburbs Posts: 169 Trader Rating: (0) Feedback Score: 0 reviews	Engine projects are always money pools. I have seen it said a hundred times, "As long as your going to **, then why don't you * and * the * while you ** the *, and while your at it...". Personally I don't think the KA should be stroked, why not just hone the btch if your looking for a rebuild. __________________ Troubleshooting? Fresh Alloy

01-15-2003, 03:49 PM	#2
Drift Style S14 Zilvia Addict Join Date: Sep 2001 Location: ............ Age: 42 Posts: 602 Trader Rating: (0) Feedback Score: 0 reviews	oh and the company doing it is flatlander racing... http://www.importperformanceparts.net scroll down and you will see the advert. for it, I called them asking about there rebuilds, and the guy told me about the stroker kit. I still think it can't be done...

01-15-2003, 03:57 PM	#3
kandyflip445 Post Whore! Join Date: Sep 2002 Location: Arden, NC Age: 40 Posts: 4,460 Trader Rating: (1) Rides Gallery: kandyflip445 Feedback Score: 1 reviews	Correct me if I'm wrong but JUST a stroker kit would change the stroke and wouldn't involve new, larger, pistons would it? Maybe if it does then they will include new cylinder sleeves. But I doubt they will.

01-15-2003, 07:20 PM	#5
AKADriver Post Whore! Join Date: May 2002 Location: Springfield, VA Age: 43 Posts: 3,517 Trader Rating: (1) Feedback Score: 1 reviews	I'm sure the factory built in plenty of room to grow in the KA for safety/durability reasons. My only question is... why bother?

01-15-2003, 11:01 PM	#7
AKADriver Post Whore! Join Date: May 2002 Location: Springfield, VA Age: 43 Posts: 3,517 Trader Rating: (1) Feedback Score: 1 reviews	The stroke is already 96mm, though. High piston speeds and tons of rod angularity, oh boy! This is a case of diminishing returns, methinks. If someone can make decent power from a KA with over 100mm stroke, well, more power to them!

01-15-2003, 11:24 PM	#8
tnord Nissanaholic! Join Date: Dec 2001 Posts: 1,975 Trader Rating: (0) Feedback Score: 0 reviews	why in the world would you want to increase the stroke of the KA?? if anything, i would de-stroke that beeyotch and possibly gain myself some extra revs (ignoring valve float and whatnot). it's bad enough the engine acts like a truck engine, lets not make it like a friggin semi now.

01-16-2003, 02:38 PM	#13
d240t2 Zilvia Member Join Date: Mar 2002 Location: Atlanta, GA Age: 44 Posts: 205 Trader Rating: (0) Feedback Score: 0 reviews	I talked about building a stroker KA once before. Crower makes custom stroker kits...pistons, rods, and crank. The QR25 in the new Spec V and Altima has the same bore as the KA, and a 100mm stroke. I never investigated...but I hoped the cylinder spacing would be the same; I could modify the crank and use it. Dennis