BC Stroker Kit for KA24DE, 2.65L of Torquy Nissan Fun!
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BC Stroker Kit for KA24DE, 2.65L of Torquy Nissan Fun!
Brian Crower who has released some nice cams and stroker kits for a large amount of the sport compact engines.
I've been talking w/ him about a stroker kit for the KA24de's and here's what I've gotten from him:
"91mm bore x 102mm stroke = 2.65L
Kit would include BC billet crank, BC Pro Series rods, custom CP pistons, pins, rings and locks. Any desired bore up to 91mm, any desired compression."
The Pro Series rods r good for ~650+ hp and best guess to price would b around $3100 same price as most stroker kits for us 4-banging users.
If he had a market for it, it could come out and price might drop, just kinda getting others ideas on it.
Thanks,
Jay
I've been talking w/ him about a stroker kit for the KA24de's and here's what I've gotten from him:
"91mm bore x 102mm stroke = 2.65L
Kit would include BC billet crank, BC Pro Series rods, custom CP pistons, pins, rings and locks. Any desired bore up to 91mm, any desired compression."
The Pro Series rods r good for ~650+ hp and best guess to price would b around $3100 same price as most stroker kits for us 4-banging users.
If he had a market for it, it could come out and price might drop, just kinda getting others ideas on it.
Thanks,
Jay
'91 Charcoal Grey Hatch: 155whp/153wtq, Megan Street Spec Catback, Hotshot Header, etc, Megan Track Coilovers, J-Speed arms, ST rear sway, Nismo Power Brace, etc
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meh the 4G64 has a 100mm stroke... although we could no longer rev to 7k... maybe like 6300 or so... i would be interested to see the results...
13.36 @ 105.97, as of 10-27-07
-------------------------------
Holset HY-35, STI inj.'s bored to 650's, NVSRAM and Nemesys, N60, Walbro 255, 3" exhaust with FREE flowing mufflers and no cats, Zeitronix ZT-2, crappiest (Closest to stock) ACT clutch, Fidanza, Nismo mounts, JGS mani, JGS oil lines, ebay FMIC, ebay adapter with 3" K&N, and im the FIRST S14 KA to run a. U12 ecu
2 KA's down, 1+ to go.
KA24DE + 12psi = Turn ya out
-------------------------------
Holset HY-35, STI inj.'s bored to 650's, NVSRAM and Nemesys, N60, Walbro 255, 3" exhaust with FREE flowing mufflers and no cats, Zeitronix ZT-2, crappiest (Closest to stock) ACT clutch, Fidanza, Nismo mounts, JGS mani, JGS oil lines, ebay FMIC, ebay adapter with 3" K&N, and im the FIRST S14 KA to run a. U12 ecu
2 KA's down, 1+ to go.
KA24DE + 12psi = Turn ya out
- smracing
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Most of us are looking to destroke the ka, and there is no way the motor would be safe at 91mm bore. 90 is pushing it. The piston speed would be thru the roof. If someone does this, I would consider reduced sized journals at least. The ka makes tons of usable torque at the current bore /stroke. Spend money on head work, and you'll make all the power you need.
well, obviously you can build an engine, buy a huge turbo, and have tons over power... all for the price to do this... but i would STILL be interested to see it (not that id ever do it myself)
13.36 @ 105.97, as of 10-27-07
-------------------------------
Holset HY-35, STI inj.'s bored to 650's, NVSRAM and Nemesys, N60, Walbro 255, 3" exhaust with FREE flowing mufflers and no cats, Zeitronix ZT-2, crappiest (Closest to stock) ACT clutch, Fidanza, Nismo mounts, JGS mani, JGS oil lines, ebay FMIC, ebay adapter with 3" K&N, and im the FIRST S14 KA to run a. U12 ecu
2 KA's down, 1+ to go.
KA24DE + 12psi = Turn ya out
-------------------------------
Holset HY-35, STI inj.'s bored to 650's, NVSRAM and Nemesys, N60, Walbro 255, 3" exhaust with FREE flowing mufflers and no cats, Zeitronix ZT-2, crappiest (Closest to stock) ACT clutch, Fidanza, Nismo mounts, JGS mani, JGS oil lines, ebay FMIC, ebay adapter with 3" K&N, and im the FIRST S14 KA to run a. U12 ecu
2 KA's down, 1+ to go.
KA24DE + 12psi = Turn ya out
Agreed.Miami240 wrote:Tell him to make a factory spec, fully counter weighed crank. I'd be all over it.
91mm just won't happen on a 240 motor. Well, let me rephrase that, it won't happen for long. First time it makes any power the block will basically rip itself apart. Thin cylinder walls don't do a good job of containing extremely high cylinder pressures.
I for the most part agree with the guys, either make a fully counterweighted stock-stroke crank, or maybe slightly destroked. Problem with destroking is that the tall deck would require you to run some extremely tall pistons, or longer rods, neither of which is good for high-rpm operation. Sigh, I feel like we're back where we were about a year ago with this discussion... LOL.
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Well, the longer rods would be great for eliminating piston sideloading, but i think it would be to an extreme already. As is, i think the KA rods are farking long! lol The stock bore and stroke is great as is. 2.4L of displacement, and the capability to rev to 8500 easily is there. The fully counter weighed crank just makes it all that much safer and smoother. So can i get a "hoorah!" for stock specs?Joel07 wrote:Agreed.Miami240 wrote:Tell him to make a factory spec, fully counter weighed crank. I'd be all over it.
91mm just won't happen on a 240 motor. Well, let me rephrase that, it won't happen for long. First time it makes any power the block will basically rip itself apart. Thin cylinder walls don't do a good job of containing extremely high cylinder pressures.
I for the most part agree with the guys, either make a fully counterweighted stock-stroke crank, or maybe slightly destroked. Problem with destroking is that the tall deck would require you to run some extremely tall pistons, or longer rods, neither of which is good for high-rpm operation. Sigh, I feel like we're back where we were about a year ago with this discussion... LOL.
Hoorah!So can i get a "hoorah!" for stock specs?
13.36 @ 105.97, as of 10-27-07
-------------------------------
Holset HY-35, STI inj.'s bored to 650's, NVSRAM and Nemesys, N60, Walbro 255, 3" exhaust with FREE flowing mufflers and no cats, Zeitronix ZT-2, crappiest (Closest to stock) ACT clutch, Fidanza, Nismo mounts, JGS mani, JGS oil lines, ebay FMIC, ebay adapter with 3" K&N, and im the FIRST S14 KA to run a. U12 ecu
2 KA's down, 1+ to go.
KA24DE + 12psi = Turn ya out
-------------------------------
Holset HY-35, STI inj.'s bored to 650's, NVSRAM and Nemesys, N60, Walbro 255, 3" exhaust with FREE flowing mufflers and no cats, Zeitronix ZT-2, crappiest (Closest to stock) ACT clutch, Fidanza, Nismo mounts, JGS mani, JGS oil lines, ebay FMIC, ebay adapter with 3" K&N, and im the FIRST S14 KA to run a. U12 ecu
2 KA's down, 1+ to go.
KA24DE + 12psi = Turn ya out
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and im sure neither of your heads are built... you know... since ivan has the quickest KA-T there is... lol...I rev to 7600, an ivan revs to 8 soo. i guess so
thats probably good advice unless your head is quite built up, and you have everything balanced... hell i wont go over 7kI've heard a while back of people suggesting not going over 7200 or so
13.36 @ 105.97, as of 10-27-07
-------------------------------
Holset HY-35, STI inj.'s bored to 650's, NVSRAM and Nemesys, N60, Walbro 255, 3" exhaust with FREE flowing mufflers and no cats, Zeitronix ZT-2, crappiest (Closest to stock) ACT clutch, Fidanza, Nismo mounts, JGS mani, JGS oil lines, ebay FMIC, ebay adapter with 3" K&N, and im the FIRST S14 KA to run a. U12 ecu
2 KA's down, 1+ to go.
KA24DE + 12psi = Turn ya out
-------------------------------
Holset HY-35, STI inj.'s bored to 650's, NVSRAM and Nemesys, N60, Walbro 255, 3" exhaust with FREE flowing mufflers and no cats, Zeitronix ZT-2, crappiest (Closest to stock) ACT clutch, Fidanza, Nismo mounts, JGS mani, JGS oil lines, ebay FMIC, ebay adapter with 3" K&N, and im the FIRST S14 KA to run a. U12 ecu
2 KA's down, 1+ to go.
KA24DE + 12psi = Turn ya out
- boosted91s13
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We're talking about buying a fully counter weighed crank... i doubt any of us are worried about stock motors.jmhalder wrote:and im sure neither of your heads are built... you know... since ivan has the quickest KA-T there is... lol...I rev to 7600, an ivan revs to 8 soo. i guess sothats probably good advice unless your head is quite built up, and you have everything balanced... hell i wont go over 7kI've heard a while back of people suggesting not going over 7200 or so
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I can get that done... I already have a quote on a fully counterweighted, pin bored, full oiling billet crank for the KA in stock stroke. Price would be 1500 bux each if I order 5... Its already designed in CAD and they are just waiting for me to say go ahead....Miami240 wrote:Tell him to make a factory spec, fully counter weighed crank. I'd be all over it.
Ivan
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Stock stroke is where its at. The motor makes plenty of power with stock stroke and bore. I would also suggest keeping the bore to a minimum... 8500 rpms is pushing the piston speed limits... Reliability would be an issue at those speeds... The stress on the pistons, rods, and bearings would be HUGE. I have my rev limiter set at 8300 currently and have been over 8000 rpms probably a hundred times this season... I am about to pull the motor apart and see how everything looks.. I will keep you updated...Miami240 wrote:Well, the longer rods would be great for eliminating piston sideloading, but i think it would be to an extreme already. As is, i think the KA rods are farking long! lol The stock bore and stroke is great as is. 2.4L of displacement, and the capability to rev to 8500 easily is there. The fully counter weighed crank just makes it all that much safer and smoother. So can i get a "hoorah!" for stock specs?Joel07 wrote:Agreed.Miami240 wrote:Tell him to make a factory spec, fully counter weighed crank. I'd be all over it.
91mm just won't happen on a 240 motor. Well, let me rephrase that, it won't happen for long. First time it makes any power the block will basically rip itself apart. Thin cylinder walls don't do a good job of containing extremely high cylinder pressures.
I for the most part agree with the guys, either make a fully counterweighted stock-stroke crank, or maybe slightly destroked. Problem with destroking is that the tall deck would require you to run some extremely tall pistons, or longer rods, neither of which is good for high-rpm operation. Sigh, I feel like we're back where we were about a year ago with this discussion... LOL.
Ivan
damn, you never cease to amaze me... 9.22, and now this? cant wait to see what you have up your sleeve for next season!I can get that done... I already have a quote on a fully counterweighted, pin bored, full oiling billet crank for the KA in stock stroke. Price would be 1500 bux each if I order 5... Its already designed in CAD and they are just waiting for me to say go ahead....
13.36 @ 105.97, as of 10-27-07
-------------------------------
Holset HY-35, STI inj.'s bored to 650's, NVSRAM and Nemesys, N60, Walbro 255, 3" exhaust with FREE flowing mufflers and no cats, Zeitronix ZT-2, crappiest (Closest to stock) ACT clutch, Fidanza, Nismo mounts, JGS mani, JGS oil lines, ebay FMIC, ebay adapter with 3" K&N, and im the FIRST S14 KA to run a. U12 ecu
2 KA's down, 1+ to go.
KA24DE + 12psi = Turn ya out
-------------------------------
Holset HY-35, STI inj.'s bored to 650's, NVSRAM and Nemesys, N60, Walbro 255, 3" exhaust with FREE flowing mufflers and no cats, Zeitronix ZT-2, crappiest (Closest to stock) ACT clutch, Fidanza, Nismo mounts, JGS mani, JGS oil lines, ebay FMIC, ebay adapter with 3" K&N, and im the FIRST S14 KA to run a. U12 ecu
2 KA's down, 1+ to go.
KA24DE + 12psi = Turn ya out
- ghostchild316
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Yea, i know it's a little high but what i meant was that it's doable without grenading instantly. I meant it more for those that are more serious with their setups and don't sit at that rev range for too long, too frequently.9sec240 wrote:Stock stroke is where its at. The motor makes plenty of power with stock stroke and bore. I would also suggest keeping the bore to a minimum... 8500 rpms is pushing the piston speed limits... Reliability would be an issue at those speeds... The stress on the pistons, rods, and bearings would be HUGE. I have my rev limiter set at 8300 currently and have been over 8000 rpms probably a hundred times this season... I am about to pull the motor apart and see how everything looks.. I will keep you updated...Miami240 wrote:Well, the longer rods would be great for eliminating piston sideloading, but i think it would be to an extreme already. As is, i think the KA rods are farking long! lol The stock bore and stroke is great as is. 2.4L of displacement, and the capability to rev to 8500 easily is there. The fully counter weighed crank just makes it all that much safer and smoother. So can i get a "hoorah!" for stock specs?Joel07 wrote:Agreed.Miami240 wrote:Tell him to make a factory spec, fully counter weighed crank. I'd be all over it.
91mm just won't happen on a 240 motor. Well, let me rephrase that, it won't happen for long. First time it makes any power the block will basically rip itself apart. Thin cylinder walls don't do a good job of containing extremely high cylinder pressures.
I for the most part agree with the guys, either make a fully counterweighted stock-stroke crank, or maybe slightly destroked. Problem with destroking is that the tall deck would require you to run some extremely tall pistons, or longer rods, neither of which is good for high-rpm operation. Sigh, I feel like we're back where we were about a year ago with this discussion... LOL.