Brian Crower Stroker kit

Your premier source for information on the Turbo KA: KA24E-T and KA24DE-T (KA with aftermarket turbo kit)!
tad_07
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http://www.briancrower.com/mak...shtml NISSAN KA24DE 2.65L STROKER KIT BC 4340 billet steel crankshaft (102mm stroke). BC 4340 steel Pro Series billet rods w/ARP 220,000 psi fasteners. CP aluminum forged pistons (any bore size, any compression ratio). 9310 nickel carbon steel alloy wrist pins. Ductile iron plasma top rings, tapered second ring, low tension oil rings. Typically includes aluminum buttons/rail supports (not locks). Fully system balanced and ready to install.

Kit # Crank # Rod # Piston # Desc.Coming Soon - Spring 2007 - Call to preorder!

The BC stroker kit for the Nissan KA24DE engine incorporates a 102mm stroke, steel billet crankshaft. Depending on bore size that you decide, the BC kit will take you up to a 2.65L with a safe 91mm bore. The KA24DE kit utilizes premium steel billet connecting rods. As usual, each BC kit features custom CP pistons, wrist pins, full ring pack and buttons. Big time horsepower and torque gains.

the wheels are spinning. I want to see a dyno sheet find the main power band. Its just something new that caught my attention


S13FX
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All I have to say is.

STUPID VERY VERY STUPID.

Why stroke an engine thats pretty much already stroked.

What eve floats your boat I guess.

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Carl H
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i guess if you like having a 5k redline its cool...

scotttak
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ka26 isnt as catchy sounding as ka24. however ka27 and id be all over that

TheOne
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i dunno, i'd like the idea of a ka26dett.(like that guy on ka-t.org makin a true tt ka, but with the stroker kit), i mean it'd prolly be same as rb26 but without 2 cylinders!(/sarcasm)

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ace0073
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well actually, scotttak.....since in math you always round up at 5, 2.65l could be expressed as 2.7l if you only use two significant figures. So there you go, save up your $3500 dollars and order some custom KA27DE emblems

S13FX
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Only problem is there is a huge difference between as 6 cyl 2.6 and a 4 cyl 2.6

Just like there is a difference in a 2.8 V8

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Carl H
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wonder what the rod ratio is on that stroker...i would be more afraid of making power on that motor than revving it, retarded either way.you want displacement go to an rb or vg or even vh, less stress across the total system.

SeanC
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why is everyone so scared of pistons speed? if you have strong internals and the cams/intake/exhaust manifold to make power it will be fine.

stock piston speed at 7000 rpm is about 4409 feet per minutewith the stroker kit at 7000 it only raises it to 4684 feet per minute

most factory forged cranks can handle 4600 feet per minutethats nothing compared to formula one at 7500 feet per minute or more.
Modified by SeanC at 5:54 PM 6/7/2007

scotttak
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no one strokes better than me.

H.D.HUMPERDINK
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I find it hard to believe that our rpms would be limited to 5,000 when there is a 2.7 liter stroker kit for s2000's which the company that built it still spins the motor over 9,000rpms. And if thats not enough there is someone that builds a 3.0 liter stroker kit for 4 cyl. volvo's. So I think that until someone buys a kit and runs it the debate about piston speed and rpm limit should just be set aside.

S13FX
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H.D.HUMPERDINK wrote:I find it hard to believe that our rpms would be limited to 5,000 when there is a 2.7 liter stroker kit for s2000's which the company that built it still spins the motor over 9,000rpms. And if thats not enough there is someone that builds a 3.0 liter stroker kit for 4 cyl. volvo's. So I think that until someone buys a kit and runs it the debate about piston speed and rpm limit should just be set aside.
Compare stock rod length of a S2000 and a stock rod length of the KA.

And you will answer your own question.

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91RMKS13
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SeanC wrote:why is everyone so scared of pistons speed? if you have strong internals and the cams/intake/exhaust manifold to make power it will be fine.

stock piston speed at 7000 rpm is about 4409 feet per minutewith the stroker kit at 7000 it only raises it to 4684 feet per minute

most factory forged cranks can handle 4600 feet per minutethats nothing compared to formula one at 7500 feet per minute or more.

Modified by SeanC at 5:54 PM 6/7/2007

SeanC
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and this one comes with an aftermarket forged crank so i am sure it can handle all sorts of pistons speed. next winter if i have the coin you can guarntee i will have a built motor for sale because i will be building a 2.6ka with some big bolted on the left side.

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ace0073
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Im with you. I tend to believe that with all the hoopla about it being stupid, dumb, over-stroked, etc..... Brian Crower has been around for a long time and would not put R&D into a product that is pointless. Everyone has their own reservations for whatever reason but for me it boils down to this; you can talk all day about what you have, how many pounds you are boostin, how big the ports are on your head, how you spin tires through all gears and put out 8000 hp to the wheels but when you get to the starting line, its put up or shut up. So if I can stroke my KA and its dumb, but I am crossing the 1/8th or 1/4 mile in front of you........I'd love to be the dummy with the stroked KA. Theory is theory but performance is also performance. All this being typed....we will see how it performs quite soon. I called BC and the first kits will be released at the end of next month. They are only releasing 10 kits in the first run, then a few months later another 10 or so will be released. Im sure once this happens, there will be all kinds of feedback to go on. Is it dumb or not dumb...we will see.

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Carl H
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i would be more worried about a piston flying thru the head than the crank.the point here is the more stress added to a system be it power or revs OR both that it doesnt matter how well built it is it still is subject to potential damage.compaing a s2k stroker to the ka stroker is apples to oranges, the s2k i s still a short stroke motor compared to the ka.if you want torque that badly just toss a 350 in the car and be done with it.

S13FX
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Carl H wrote:i would be more worried about a piston flying thru the head than the crank.the point here is the more stress added to a system be it power or revs OR both that it doesnt matter how well built it is it still is subject to potential damage.compaing a s2k stroker to the ka stroker is apples to oranges, the s2k i s still a short stroke motor compared to the ka.if you want torque that badly just toss a 350 in the car and be done with it.

H.D.HUMPERDINK
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the piston speed for a s2000 with a 2.7 stroker kit at 9300 rpm is 6463 feet per minute. which is a whole lot more than the 4684 feet per minute which this stroker kit would keep our stock redline.

and rod length shouldn't matter because I would assume that the rods that come with this stroker kit can handle the extra stress.

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Carl H
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still missing the point here.so the kit can handle the increased piston speeds...calculate the exerted force on the rods and pistons due to the increased speeds then get back to me.

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WDRacing
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Mitsu went with a big cube 4 banger in the Conquest...big ole POS. 4 bangers can only be so big. Well when speaking of a motor that starts as a 2.4 anyway.

I mean hell, might as well make her a 3.0 and add a set of twins. Ok thats just gay...sorry.

Brian Crower is a smaht fvcker though, I'd give it a shot if it was cheap.

WD

SeanC
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WDRacing wrote:Mitsu went with a big cube 4 banger in the Conquest...big ole POS. 4 bangers can only be so big. WD
haha a big piece of **** eh? i just finished building one of those that currently holds the highest horsepower record. just a hair shy of 400 w tq that will be easy to break with methanol?

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WDRacing
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If 400 ft lbs of torque is the record, then I stand by my statement. And yes, that motor had ALOT of issues, like eating headgaskets etc.

DRFT(kinda)
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I just spun some bearing the other day so now would be a good time to look into the stroker kit. When do you think it will be out?

SeanC
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they said they are taking orders now and once the initial deposit is recieved it will take 4-5 weeks to produce.

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Reno
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can a company or somebody try this? to see if its worth it?? hmmm why cant Briancrower show us an example..

DRFT(kinda)
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Yeah, called to day and they said it can take up to 45 days to ship and it cost $3300. For this I am sad.

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Reno
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hey ask them if its fine in boosted applications.

yellowcar
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Bought one for my 69 510 project, we'll see how it goes.I ordered the kit and their stage 2 cams, the valve springs and the valves.

yellowcar
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BTW when I ordered the kit they asked if I was going to turbo it so I imagine it is fine with a turbo (as long as you get the right compression ratio)

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spooled240
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ace0073 wrote:Im with you. I tend to believe that with all the hoopla about it being stupid, dumb, over-stroked, etc..... Brian Crower has been around for a long time and would not put R&D into a product that is pointless. Everyone has their own reservations for whatever reason but for me it boils down to this; you can talk all day about what you have, how many pounds you are boostin, how big the ports are on your head, how you spin tires through all gears and put out 8000 hp to the wheels but when you get to the starting line, its put up or shut up. So if I can stroke my KA and its dumb, but I am crossing the 1/8th or 1/4 mile in front of you........I'd love to be the dummy with the stroked KA. Theory is theory but performance is also performance. All this being typed....we will see how it performs quite soon. I called BC and the first kits will be released at the end of next month. They are only releasing 10 kits in the first run, then a few months later another 10 or so will be released. Im sure once this happens, there will be all kinds of feedback to go on. Is it dumb or not dumb...we will see.
I think this is gonna work great..it's going to be very interesting seeing the output on this kit!


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