Building my KA

Post by **ShifDown96240SE** » Fri Aug 29, 2003 7:15 pm

I really want to build up my KA all american muscle style. I was thinking that i want a 10.5:1 comp ratio, with (ithink nismo makes cams for the KA)cams, JE pistons, crower connecting rods. etc...5-way valve job with performance valves.

I was wondering tho, would i deck the block, or bore over with 10.5:1 pistons, or do both??? I dont know all that much about building engines, but i do know some stuff. Theres a machine shop out in my town that has a really cool guy that owns it. he said he was sick and tired of building 8s all the time, and would love to give his advice and machine our blocks(me and my friend)

I was wondering some input from people that have built this engine or other engines before-like what to look out for, and what to make sure i do.

when im done getting it built, im takin it down south to JWT n san diego, to get it all timed and re-programmed.

Anybodys input woulkd be appreciated

Post by **GroundZero** » Fri Aug 29, 2003 7:15 pm

well seeing as your going N/A then i'd suggest a higher compression ratio maybe 11.5 or 12 to 1.

JE makes a really crappy piston, Wiseco makes Forged pistons for the KA and are alot better quality than JE's crap.

crower rods are good but expensive, you should give Eagle Rods a call they make rods for the KA rated up to 800hp for about $350.

deck the block and bore it, i wouldn't bore it more than .030 over though

Post by **SHiFT** » Fri Aug 29, 2003 7:15 pm

how much hp do you think this setup will give you and how much will all this cost? I'd be cool to have a unique N/A 240 but isn't it just that it doesn't produce much power? For the money you'd spend on this (replacing internals/boring and such) you could have a pretty mean turbo ka IMO. Just a thought.

Post by **Structure240sx** » Fri Aug 29, 2003 7:15 pm

search around one guy had a setup sorta like what ur lookin for and said the streetability sucks.

Post by **ShifDown96240SE** » Fri Aug 29, 2003 7:15 pm

yeah i was lookin for around 280-320 Hp i dunno how its gonna go, but the guy said with out bolt-ons and just pure machining hed get it to 24-250 Hp to the crank. Turbos are just too much maintenance, and i absolutely hate the lag, i want a grip of torque(which the KA is good for) and i want it to happen right away. Also he said he des payment plans on machining. I dont know any payment plans for turbos or SRs or the CA18. i really do like the originality of it too, and 11.5 comp ratio has got to be insane, and definitely not streetable, but we'll see what the guy says at the shop. Anyone else that has any ideas itll help, i appreciate all your input. Thanksd!!!!

I really just want a nice drift setup without turbo lag.

Post by **Kinesthesia** » Fri Aug 29, 2003 7:15 pm

GroundZero wrote:you should give Eagle Rods a call they make rods for the KA rated up to 800hp for about $350.

I was very excited to see this as I've been looking for reasonably priced rods !

Until I called Eagle and spoke to Tim who told me that they do not make them. They only make rods for the SR20 and the VG30, just like their website says:http://www.eaglerod.com/produc....html

Post by **GroundZero** » Fri Aug 29, 2003 7:15 pm

thats weird i thought i saw those eagle rods for the ka online not too long ago. i don't know. well i also found these back when i was searching http://www.catpep.com/Products..._ID=8

Post by **Dragon240** » Fri Aug 29, 2003 7:15 pm

I'm wanting to build my motor and then go turbo ka in the future. What kind of compression ratio should I go for for turbo 8.0:1? 9.0:1? more or less? Turbo use and possibly nitrous. The plan is complete engine rebuild, port/polish/the whole bit. Just trying to make plans and locate parts and put together a price for the whole setup I want. Suggestions?

Post by **GroundZero** » Fri Aug 29, 2003 7:15 pm

for turbo, anywhere between 8:1 and 9:1 is good. stock comp ratio in the ka is 9.1:1 i beleive.

Post by **ShifDown96240SE** » Fri Aug 29, 2003 7:15 pm

I thought the stock ratio was 9.5:1, i would turbo with 9:1, not as dependable, but more HP

Post by **Kinesthesia** » Fri Aug 29, 2003 7:15 pm

ShifDown96240SE wrote:I thought the stock ratio was 9.5:1, i would turbo with 9:1, not as dependable, but more HP

Forgive me... but I'm not sure what you mean by "not as dependable" ?

Post by **Structure240sx** » Fri Aug 29, 2003 7:15 pm

lower compression is safer for boost especially high boost. it takes a lot of tuning to run a high compression boosted motor. lower compression jsut kinda gives u a safety net

Post by **ShifDown96240SE** » Fri Aug 29, 2003 7:15 pm

s13 soc has 9.1:1 s14 dohc is 9.5:1 i dont know about s13 dohc though.

Post by **Structure240sx** » Fri Aug 29, 2003 7:15 pm

s13 and s14 dohc are the same except for the distributor, intake manifold, ecu and cams

Post by **ShifDown96240SE** » Fri Aug 29, 2003 7:15 pm

yeah the dist is way different

Post by **donnybrook** » Fri Aug 29, 2003 7:15 pm

hey shift wheres this machine shop... im trying to get an engine off ebay for way cheap... and im gonna build it up the same way you said... and about how much do u think ur gonna be paying for the extra work that needs to be done?

Website · Post by **s13sr20chris** » Fri Aug 29, 2003 7:15 pm

300hp from na ka24? thats full race big money stuff bro.

Post by **ShifDown96240SE** » Fri Aug 29, 2003 7:15 pm

I dunno, but i want around 250 RWHP, nothin crazy, not all that much money, if you are in so. cal, i have several shops that i am recomended to by a few people who have done this stuff for years. If you want to hit me up and talk my AIM screen name is DriftersxS14. and the shop i was going to go to, i researched throughout what people in town said, and i dont hear the greatest things about this place, and i know people who recomend it, so im going to look around.

Post by **krazy skwerel** » Fri Aug 29, 2003 7:15 pm

Good luck on that kind of power from the ka. I know duantless offered a 200hp dohc engine and that was pretty expensive.

Post by **Dragon240** » Fri Aug 29, 2003 7:15 pm

http://www.racetep.com/240sxna.html

This ones 210 and its $3900

Post by **ShifDown96240SE** » Fri Aug 29, 2003 7:15 pm

it cost alot because of all the labor included. If i pull my engine and take it apart by myself, buy all the parts at wholesale price, go down to a known shop, and get everything machined, polished, etc. plus he did about half of what i was going to do.so i think 11:1, nismo cams, and everything imaginable, all at about whole sale price with about 75% less labor in money, i think ill make it.

Website · Post by **s13sr20chris** » Fri Aug 29, 2003 7:15 pm

you will make it alright, but just not to 250rwhp. i dont forsee that happening on an na ka without factory support or some kind of serious engineering consultants.

Post by **Dragon240** » Fri Aug 29, 2003 7:15 pm

i don't want 250 n/a. I would like to have 250-300 rwhp with turbo..

Post by **bendychicken** » Fri Aug 29, 2003 7:15 pm

some later model KA's have 10.5:1 compression ratios. I have a 93 with that ratio. talk about N/A torque! isn't that just about the highest you can go on 93 octaine?

Website · Post by **s13sr20chris** » Fri Aug 29, 2003 7:15 pm

10.5 is pretty high. be carefull with that ign. timing:)

Post by **ShifDown96240SE** » Fri Aug 29, 2003 7:15 pm

Dragon240- I started the post about bulding my Na KA, I know i dont care what you do to your KA, i dont think the responses were for you, but i could be wrong i guess. Anywayz, theres alot ive been thinking about during the duration of this topic. I am so goddamn confused and all theese mixed feelings ABOUT MY ENGINE, the SR, the CA, KA-T, I dont know what im doing anymore. My friend and i were set on the KANA idea, but now he wants an SR, and i want to build my KA-T, nice forged everything, and have my horsepower plus all the torque, then the turbo spools, and thatll be great. heres a post my friend wrote on zilvia, i think hes lost interest in zilvia now, im gonna try to make him join here. anywayz heres the link i think most will enjoy the arguing here too......

http://www.zilvia.net/f/showth...35417

thanks everyone for all the help, but im still stuck.....

Post by **Dragon240** » Fri Aug 29, 2003 7:15 pm

No need to get an attitude. If you wanted this to be a private conversation get on the phone. I can respond freely in here and join in the conversation in whatever aspect i feel like. You don't run this place so dont tell me what to do. I was just carrying on a conversation with fellow club members about a topic that interested me. Get off my back.

Post by **ShifDown96240SE** » Fri Aug 29, 2003 7:15 pm

No attitude man, i just thought it was funny that you said

i don't want 250 n/a. I would like to have 250-300 rwhp with turbo

when noone was talking to you about it, didnt mean to sound mad or anything sorry, but if you read the whole thread, you just came out of nowhere with that, thats all LMAO

Post by **Dragon240** » Fri Aug 29, 2003 7:15 pm

I have made several other posts in this thread...

Post by **SHiFT** » Fri Aug 29, 2003 7:15 pm

about the turbo lag stated above, its really not that big of a deal. If you're going to be racing it you're going to launch at 2,500-3,000 RPMS or so anyways, and within 500 more you're in boost, and thats with a bigger turbo (T3/T04 hybrid/TD04/etc.). The KA has enough torque that you'll barely notice the difference, plus its streetable. Trust me when a boosted KA is in WOT its rediculous, I rode in one last week. If you want 240-250 HP you won't have to open the engine up either, you'll be at about 8-9psi on stock internals with most setups for that HP range.

Building my KA

Building my KA

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