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Old 05-20-2014, 04:05 PM
Payupv8 Payupv8 is offline
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Default Na ka24de input for datsun 510

Ok so Iam looking for a little input on building a na ka24de for my
Datsun 510. Iam wanting to run some racehead itb's with a
Custom built intake manifold not sure about cams yet thinking
Of pdm cams or some Jim wolf cams need a little help here
I want to have the intake and exhaust ports ported.
For the bottom end Iam thinking of ka24e pistons and some
Eagle forged rods I only want 10:1 compression because I only
Want to run pump gas Iam gonna have the crankshaft balanced and
Knife edged and Iam gonna get an ati dampner and for tuning Iam
Thinking aem ems and some LS1 coil packs if I hit 200whp that would be
Awesome I just want to build a fun reliable motor to take on
Fun runs and drive to car shows. Any help or info would be very
Much appreciated thanks in advanced eric
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Old 05-20-2014, 04:58 PM
Def Def is online now
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Spending that much money on an NA Nissan engine... what about an NA RWD SR20DE (dirt cheap) with a VE head on it? Or with the talk of $$$ head work and forged rods/pistons, you can punch it out to a 2.1 L o stock sleeves and run 11:1 (still on pump gas) and make about 220-240 whp. No way you'll match that with a KA build that'll run on pump gas and last any length of time.
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Old 05-20-2014, 05:14 PM
Matt93SE Matt93SE is offline
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A KA with -e pistons, intake manifold, proper header, cams, and a proper ECU will put down 200whp and have torque too.
In a 510, that will be enough power to get you in trouble pretty quick.

I wouldn't waste your time with ITBs.. it shifts the power band so high on a KA that it ruins what good the engine has..
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Old 05-20-2014, 06:14 PM
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I don't think it's that easy... 240TTC had to mess around quite a bit to get his to 200 rwhp and the powerband was a little wonky due to the harmonic timing of the manifolds.

An SR20VE will easily outpower anything the KA can do. It can rev to the moon which the KA will never do, and it easily has more head flow.
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Old 05-20-2014, 06:26 PM
Tower240sx Tower240sx is offline
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getting the flow out of a KA head is an uphill battle. I would go with the DE w/VE head as per DEF's Suggestion, Especially if 200 WHP is an actual goal. a KA with enough cam to make 200whp is gonna hve ****ty TQ down low when you compare it to the 2 cam profiles of a VE setup
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Old 05-20-2014, 06:29 PM
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Quote:
Originally Posted by Tower240sx View Post
getting the flow out of a KA head is an uphill battle. I would go with the DE w/VE head as per DEF's Suggestion, Especially if 200 WHP is an actual goal. a KA with enough cam to make 200whp is gonna hve ****ty TQ down low when you compare it to the 2 cam profiles of a VE setup
And this guy used to be a ridiculous KA fanboy.


I think a KA's internal friction is also a major power robber as well. There's a reason a "high power" KA isn't kind to its bearings or scuff surfaces even though it's making about 80-85 rwhp/L.
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Old 05-20-2014, 08:46 PM
Payupv8 Payupv8 is offline
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Thanks for the input. My reason for the forged
Rods is that I already have them bought them from a friend
For a good price. I already have a ka complete swap and a spare
Complete long block that's the block Iam gonna build. Also I like
The fact that I can walk into my local parts store and get parts for the ka
I also just wanted to do something a little different. The ve head on a na sr sounds pretty cool I just want to stay away from a turbo sr because everyone and their mother has a turbo 510 with a sr
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Old 05-21-2014, 04:43 AM
Def Def is online now
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Once you make 200 rwhp on a KA, there probably aren't a ton of parts that'd you'd be able to replace with parts store parts. And you do realize the FWD SR20DE shares almost all parts that you'd ever buy locally with a RWD SR and/or VE.

But you seem to be set on the KA, and it should get to 200 rwhp if you fiddle with it a lot. Should move nicely in a 510.
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Old 05-21-2014, 06:10 AM
Matt93SE Matt93SE is offline
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Dad did a $1500 KA build a couple months ago and made 180whp using factory rods, KA24E pistons, ebay header and intake, and Nistune on 91 octane.

Use a proper header (will have to be custom for the car, so you might as well do it right anyway), get a decent intake manifold, tune the intake, and I can easily see 200whp on pump gas, whether Def thinks it's doable or not. :P
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Old 05-21-2014, 06:41 AM
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Could happen, but another 10% power NA and keeping a good powerband is not easy with bolt-ons/manifolds.

That sounds like a lot of power on a dynojet with stock cams though. Was that on a Mustang or Dynapack dyno? In which case that sounds about right (i.e. about 160-170 rwhp Dynojet).
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