Parts List for 200 HP NA SOHC

[drftwerks]

Help me make at least 190-200 HP NA SOHC, i want to use FCR carbs or ITB's from AE101.

What are major parts that i will need?
Thanks
Bryon

[Tygma]

ITBs
Management
Port and polished head
Cam
Header
Test Pipe
Exhaust
100 Octane
Tuning

Done deal..

[trsilvias13]

i would add in high compression pistons

[Irukandji]

theres a thread for N/A KAs.. go search for it, its a sticky so maybe even you could find it.

[HyperTek]

throttle activated nitrious.. Id do it.. u dont need 200hp all the time anyways..

[theicecreamdan]

all the SCCA SOHC used longer rods, there's a site that sells them around somewhere.

if anybody finds that site again it would be nice to have in the NA KA thread

[MakotoS13]

if i want to go faster than low 12's or 11's i'm gonna put the car on the bottle. i dont want more than 350rwhp on tap in a car this light.

[wootwoot]

go side draft webbers

[infinitexsound]

eh high compression really, honestly ive seen alot of the motors on the daily basis.. were running 116 gas on these engines also.. nismo USA sells all the parts for them.. more then likely youd want to go dry sump.. but check out Some of the GT3 nissan cars most of them are SOHC.. Dave from Rebello still makes these engines..check out TWM induction for the ITB's..

[shinrekka]

this is what my plan was going to be for 200hp using my original SOHC engine block,
1. DOHC head swap on the SOHC block, yeilds high compression with stock shit
2. Custom cams, havnt done any research on yet, maybe nismo has an R4 set like for the sohc
3. Full exhaust, header back with test pipe or high flow cat
4. Custom sheetmetal intake plenum with cone filter by were the battery used to be.
5. Lightweight pullys, flywheel

if you wanna build it still using your SOHC head, do everything listed above, but instead of the head swap, your gonna have to put in high compression pistons which i realy dont have any info on.


I personaly realy dont want to go over 200hp because my wallet fears feul upgrades, and thats also enough power to drift a little better

[SHIFT_control]

Check this site out www.nismoparts.com
I could only imagine hi- comp pistons for a SOCH on a DOCH head.... 13:1 comp. I'm thinking of doing this to the KA I'm pulling out of the 240 and dropping that into a 510 with webbers off of a L20 from a 2000 roadster, somewheres around 300* cams, crank balanced to get to 8k rpms

[MakotoS13]

I personaly realy dont want to go over 200hp because my wallet fears feul upgrades, and thats also enough power to drift a little better

you wanna do all this and can't spring an extra C note for a walbro? you picked the wrong hobby, bud.

[RBS14]

Can someone please make a pic of someone wearing a zilvia T shirt beating a dead horse?

Remember this, IT'S ALL SPECULATION! NONE of you have done it.

[drftwerks]

anyone wiith some actuall real world experience? can help out. FCR are better than webbers for a carb setup.

[drftwerks]

theres a thread for N/A KAs.. go search for it, its a sticky so maybe even you could find it.
GO LOOK AT THE THREAD, let me know where is talkes about building NA SOHC. Thanks.

[theicecreamdan]

the thread is new, and it doesnt discriminate between SOHC and DOHC

[RBS14]

Like it's that hard to figure out?!

It's a pretty simple formula to get a lot of N/A poer. Lots of compression, unrestricted air in and out, a fully built head with a shitload of P&P work, and good tuning.

Someone already posted about nissan motorsports. They make almost every part you can think of for a sohc. Including an intake mani that you can use carbs or ITB's on. It's not like a fucking SR that has documented "this setup will make this much power" stats. Nobody that builds crazy N/A ka's sits on forums all day. So instead of wasting your time here, do some research.

[non2os13]

http://www.courtesyparts.com/secondtier_s13.html
this site has alot of gt3 parts, including carb intake manifolds for singlecams.

[SW20Racer]

quick note if you want to save alot of time. just put the single cam pistons into a twin cam block and call it a day. no need for all the damn fab work required to swap heads.

[theicecreamdan]

that's not gonna get you 200whp buddy.

[infinitexsound]

Like it's that hard to figure out?!

It's a pretty simple formula to get a lot of N/A poer. Lots of compression, unrestricted air in and out, a fully built head with a shitload of P&P work, and good tuning.

Someone already posted about nissan motorsports. They make almost every part you can think of for a sohc. Including an intake mani that you can use carbs or ITB's on. It's not like a fucking SR that has documented "this setup will make this much power" stats. Nobody that builds crazy N/A ka's sits on forums all day. So instead of wasting your time here, do some research.

SCOTT is the shit :bigok: from what i was told by my boss,,,, a DOHC built by nismo is like 18k..... so if u have that much money to shell out sweet...NOT alot of people are even running DOHC engines tho... i was at the runnoffs and we were the only ones...

[sideview_180sx]

quick note if you want to save alot of time. just put the single cam pistons into a twin cam block and call it a day. no need for all the damn fab work required to swap heads.

won't work if you use dohc head since sohc pistons won't have valve indentations. BTW rbs14 and the old member deviousKA are the only ones I know that have done serious work with NA on the forums and that have posted results. BTW 200whp KA is not as easily possible unless you use sohc::: main reason, solid lifter conversion to run a very aggressive cam. dohc doesn't have this system, yet. dry sump oil system. very high octane. higher compression then realistically feasible for daily. ITBs is a must,so much head work you wallet will scream for mercy. then spend more cash on dyno and tuning. BTW at this point just boost it if you want 200+ driveable HP.

or you could use a 50-70 shot of nitrous. One magazine did that to a sohc. made 211whp 286wtq. just go nitrous and call it a day. if you want more power daily, just boost the bitch........

[BOROSUN]

i thought dry sump was only so you can lower the motor for better cg. so its not really necessary.

[theicecreamdan]

its also for getting reliable oiling.

[orion::S14]

won't work if you use dohc head since sohc pistons won't have valve indentations...

If you use the 8.6:1 SOHC pistons (most common ones), there is no need for valves reliefs...it'll clear fine as is.

- Brian

[RBS14]

Yeah, you can't even get the higher comp sohc pistons now. Nissan stopped making them. Only ones you can get are the 8.6:1 which yield 11.1:1.

As for cams, like I stated in the n/a ka faq thread, aftermarket cams in a dohc with sohc pistons won't work. Valve reliefs are not in the right spots for the dohc valves. So just do high comp dohc pistons if you intend on using big cams (why wouldn't you?).

There will never be a solid lifter valvetrain for a de like the sohc. Not possible because of the type of valvetrain it is (shimmed underbucket). What Nissan Motorsports does is make larger diameter shimmless underbuckets, so you can use virtually ANY spec cams you want. Rebello Racing has them in stock last I checked.

[infinitexsound]

the dohc is still a new motor in road racing, they havent even acquired the right size restrictor for it yet.

so alot of it is still kinda new..but for what its worth 200hp could be feasible if ur wallet allows it, and also how high of a octane u can get in ur local area.

scott hows ur motor build doing btw?

[SW20Racer]

i was bout to say, like fuck it wont work ive done it w/my friends car. glad some1 came to chime in im not able to check posts daily

[unwed_transient]

you wanna do all this and can't spring an extra C note for a walbro? you picked the wrong hobby, bud.

wow, I had no idea "fuel upgrades" only meant a beefier pump.

looks I picked the "right" hobby, bud.

[shinrekka]

you wanna do all this and can't spring an extra C note for a walbro? you picked the wrong hobby, bud.

I ment feul upgrades as in larger injectors, and all the work associated with making them work. I have a Z32 TT feul pump that i put in to replace my stocker when it crapped out. Feul injectors and tunning cost alot. I doubt I would max out the system if i built it N/A because there is a good chance i wont break 200hp. People in the Datsun 510 world know alot more about building a 200hp n/a motor then the 240sx world. 95% of 240sx guys still insist that you cant break 200hp n/a without $20,000 in your engine. Just like for years everyone was saying you cant swap a DOHC head on a SOHC block with no real hands on knowledge, they were just going by what they had read. Until someone breaks 200hp n/a shows exactly what they did, posts dyno charts, everyone will still say its impossible for 200hp n/a. I personaly have seen an n/a ka24de in an S14 dyno 211hp to the wheels. He was very secrative abought what he did to the car, all i could get out of him was he had high compression pistons and custom cams. When he had the hood popped, i saw a custom intake manifold, header, and aem intake. Clearly no turbo or nitrous lines. Pure n/a goodness.

[RBS14]

the dohc is still a new motor in road racing, they havent even acquired the right size restrictor for it yet.

so alot of it is still kinda new..but for what its worth 200hp could be feasible if ur wallet allows it, and also how high of a octane u can get in ur local area.

scott hows ur motor build doing btw?

It's definately a new motor in racing. My buildup is coming along. I'm off to go pick up my cams right now. Can't wait to throw them in tonight. Got a P&P'd head I need to pick up some time soon, and I'll be throwing in oversized valves in in too. We'll see how it all goes.

[SochBAT]

Description

This is a race ready SCCA GT3 engine. Does not include flywheel, clutch, or mag PU bracket and carbs. These parts are available for additional cost.
Engine

* Engine Builder: Malcolm Garrett Racing Engines
* Manufacturer: Nissan
* Type: KA24E
* Displacement: 2400cc
* Induction: NMS intake w/insulators, ported by Rebello
* Heads: Head ported by Rebello
* Block: O-ringed, line bored & squared Nissan truck block
* Crankshaft: NMS crank w/modified oiling, lightened & nitrited
* Connecting Rods: Carrillo long rods
* Pistons: Weisco +.040 pistons, 13.5:1 CR
* Camshaft: Crane cam, springs, and retainers
* Valves: Ferrea modified JUDD intake valves, Manley custom exhaust
* Valve Train: Gerolamy modified rockers
* Total Time: 1hr. 45min.
* NMS dual roller chain drive & sprockets, outside oiling system w/modified turbo oil pump, Design Products gated road racing pan w/AN plumbing. Can easily be converted to dry sump, if desired.

Just go to google, type in KA24E SCCA, and BAM. Copy their setup for their GT3 car. You'll reach your goal, and find something proven. I say copy setup, and improve.

[EchoOfSilence]

woah is that total time as in... life expectancy? I hope not.

[RBS14]

No, that should be the total time on the engine. I believe it is for sale.

[non2os13]

or just buy this.
http://race-cars.com/engsales/other/1059606728/1059606728ss.htm

[infinitexsound]

thats good scott, im to busily with work to even continue with mines.... sucks...