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S Chassis Technical discussion related to the S Chassis such as the S12, S13, S14, and S15.


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Old 11-04-2009, 05:26 PM   #1
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Originally Posted by Jus Skott View Post
if you only want 2 and change to the wheels and have it NA. just drop an LT1 or LS1 in there and call it a day.
I'd say do what ever the fuck you wanna do to your car! The LS1 is a great swap for a 240 it weighs damn near the same as the KA so you won't have the suspension overload or handling problems. The downside to the LS1 is the cost a good motor and tranny is gonna run you anywhere from $2000 to $5000. If you aren't a fabricator then you need mounts made as well as headers, radiator etc... then you have to source an ECU, update your fuel system and all the other bells and whistles. I would recommend chassis stiffening and bracing also. Hinson Supercars has all the stuff to do this swap but the prices are a bit high. As for the LT1 well that is a whole different demon that requires full fabrication.

check out www.hinsonsupercars.com

I have had success with the KA and i still love it. My suggestion is not to set specific power goals but to build it with the best parts and address its weaknesses and make changes where needed. Don't be a monkey and boost a stock motor, it'll be fun.......for awhile anyhow!!!

Just my two cents, but what do I know im just a redneck wit a flatbed!
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Old 03-27-2010, 02:17 PM   #2
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Originally Posted by MacDrizzle View Post
IThe LS1 is a great swap for a 240 it weighs damn near the same as the KA...
Please stop spreading misinformation.

KA weights 380lbs

LS1 weights 496lbs

VH weighs 540ish lbs.

If you actually researched things you would know this.

I think it would be sick if someone actually got a fully-counterbalanced stock-stroke crank, some big cams and ITB's, 12:1 compression, and ran it on E85 with a real tune.

That has never been done before and I bet it would be mean and streetable.
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Old 02-19-2009, 12:33 PM   #3
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Old 02-20-2009, 01:17 PM   #4
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Boost!!!
cant argue that fact eitehr 9 psi made 311 whp and 279 wtq here
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Old 02-21-2009, 02:41 AM   #5
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Quote:
Originally Posted by Jus Skott View Post
cant argue that fact eitehr 9 psi made 311 whp and 279 wtq here
More info on your setup, please. lol

There's some guys on KA-T.org making 330+whp at 10 psi, but they don't like to give specifics about their specs.

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buddy is making 165whp on his ka..

for the amount of work he's put into it.. not sure if it's really worth it.

talked to him today said he probably put 1k into it :|
Yeah, not worth it at all. I could EASILY put together a turbo kit good for 200+ whp for about a grand.

N/A is cool... but not for KA's. Too much money and effort for too little payoff.
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Old 02-21-2009, 02:59 AM   #6
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Quote:
Originally Posted by JRas View Post
buddy is making 165whp on his ka..

for the amount of work he's put into it.. not sure if it's really worth it.

talked to him today said he probably put 1k into it :|
lol roomie just dyno'd 140 whp on a once cam slam (KA24E) w/ a few bolt ons. ZOMG advanced timing, egr and pcv delete, a/c deleted, power steering delete, electric fan, gutted cat and a little grinding of the intake mani at his pops garage.

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Originally Posted by soreballz View Post
More info on your setup, please. lol

There's some guys on KA-T.org making 330+whp at 10 psi, but they don't like to give specifics about their specs.


Yeah, not worth it at all. I could EASILY put together a turbo kit good for 200+ whp for about a grand.

N/A is cool... but not for KA's. Too much money and effort for too little payoff.
lol my motor came from one of the member on there. but it had a blown head gasket and i have reworked a few things since then.

enthalpy tune.
msd 6a
msd 8207 blaster coil.
9:5:1 aries pistons
248 91 ka24de cams
D/W 750cc side feed
T3T4 50/.63 ar
38mm tial wg
spearco IC
hks ssq bov
egr delete
z32 mass
apr head studs
3 layers of a cometic hg
comp clutch stage 4 6 puck
oem weight flywheel.
3" exhaust all the way back.
shimmed j30 diff otw (prob. will fail.)

I can tweek a bit more out of it. but you know order parts online and ya have to play the waiting game.

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Old 02-21-2009, 11:48 AM   #7
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Quote:
Originally Posted by soreballz View Post
Yeah, not worth it at all. I could EASILY put together a turbo kit good for 200+ whp for about a grand.

N/A is cool... but not for KA's. Too much money and effort for too little payoff.
well the thing is he already has an SR.. believe it or not he drives the KA track car more.


he did a high compression build on the ka, using sohc pistons to raise the compression.



than he made custom ITB's.. mind it's a lot cleaner now this is right after he finished making it.

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Old 03-17-2010, 02:18 PM   #8
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well the thing is he already has an SR.. believe it or not he drives the KA track car more.


he did a high compression build on the ka, using sohc pistons to raise the compression.



than he made custom ITB's.. mind it's a lot cleaner now this is right after he finished making it.

im confused did he lose power by doing the itbs???? am i reading this wrong???
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Old 03-20-2012, 03:55 PM   #9
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Quote:
Originally Posted by soreballz View Post
More info on your setup, please. lol

There's some guys on KA-T.org making 330+whp at 10 psi, but they don't like to give specifics about their specs.
MSD 8207 blaster coil, MSD 6A, 750cc deucheworks injectors, jgs log mani, garret t3t4 50/.63 ar, 38mm tial wg, spearco fmic, hks ssq bov, enthalpy tune, stock block.

only thing thats changed on the new setup with isn't in the car yet is 90mm pistons, arps studs through out, balanced and polished crank, anda few other stupid things.
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Old 03-20-2012, 04:31 PM   #10
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There's nothing wrong with the KA, despite the endless and countless pricks who will speak poorly about it before they read about it. If you do your research you will find that all KA builds that have made huge HP and Torque gains were all turbo, not n/a. Like stated earlier in this thread, nobody makes a dd n/a KA... You can make a dd turbo KA, and for that you just need to do your homework, and prep you're internals; forged pistons, h-beam rods etc. If you rebuild your bottom/top end with going turbo in mind you'll have a beast of a motor thats dd. Check out KA-T.org for you're KA extremist info, that's what they do there, nothing but monster KA's. But as for going n/a??? I dunno bout that one, when you're done with your n/a build you'll be about as intimidating as a box of kittens.
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Old 02-20-2009, 12:50 AM   #11
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I like the info charles gave thanks man and i am sticking with an na/ka and already have an intake, 3" cat-back, test pipe, spark plugs + wires, stage two clutch act, and flywheel i just need the other stuff and is obx a good header i've heard other wise
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Old 02-20-2009, 01:32 PM   #12
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I like the info charles gave thanks man and i am sticking with an na/ka and already have an intake, 3" cat-back, test pipe, spark plugs + wires, stage two clutch act, and flywheel i just need the other stuff and is obx a good header i've heard other wise
You only listed two things that don't transfer over to turbo cars. Why do people even ask for advice when they don't want to listen to it? Save your money and go turbo, or sell your NA parts later for 1/4 of what you paid when your car is still slow and you realize turbo was a better option.
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Old 02-21-2009, 12:46 AM   #13
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buddy is making 165whp on his ka..

for the amount of work he's put into it.. not sure if it's really worth it.

talked to him today said he probably put 1k into it :|
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Old 02-21-2009, 02:43 AM   #14
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Oops, double post.
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Old 03-31-2009, 06:56 PM   #15
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buddy is making 165whp on his ka..

for the amount of work he's put into it.. not sure if it's really worth it.

talked to him today said he probably put 1k into it :|
Are you talking out your ASS. I'm making 162 to the wheels stock internals and haven't even spent over $1100 yet. From stock thats over 40WHP. You will never find a cheap turbo bolt on application for under a grand and make 40WHP, seriously.
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Old 02-21-2009, 01:13 PM   #16
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I'm still dying to super charge a KA but I haven't seen the results to warrant the money so far.
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Old 02-21-2009, 01:17 PM   #17
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Boost.. I was thinking of doing NA/KA but that looks like too much money and work. I had the same idea in mind has you do.

I plan to boost my KA but only a bit not too much. Take your time and research. Go to KA-T.org look around.
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Old 02-21-2009, 01:28 PM   #18
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N/A KA is cool, but your better off spending that money on a turbo kit or a supercharger. If you bought headers already then supercharge the KA.
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Old 02-21-2009, 08:20 PM   #19
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a supercharger would be cool and different but i cant find a superchager kit am i not looking hard enough and its not that i dont want to boost its just i'm not doing that on this car i can get another one to do that to i want an na/ka because i want to see what i can get outta it.
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Old 02-21-2009, 11:57 PM   #20
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There isn't really a viable kit for super charging. If you are really interested there is a section for it on KA-T. It seems fairly simple to do if you can do a little fab work.
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Old 02-22-2009, 12:41 AM   #21
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IMHO if your are looking to go NAKA or SCKA do yourself a favor and find a friend that can fab and weld. you'll be better of in the long run.
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Old 02-22-2009, 12:59 AM   #22
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Supercharging will require some fab work. Check on KA-T.org they have lots of great information there. If you want to buy a supercharger kit for the KA try talking to Thomas Knight, I remember a while back he made some kits and sold some. He has a website, google him up.
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Old 02-22-2009, 09:57 PM   #23
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okay so if i were to supercharge the ka i could just use the spot were the old power steering pulley was mounted right and just have a buddy fab a bracket to work off that and would i need to get all of the same shit i would need to get for a turbo setup as well if i'm just gonna run like 7 to 10 psi
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Old 02-22-2009, 10:25 PM   #24
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Ideally you want the super charger on the intake side but if you run a centrifugal charger you can put it any where.

This is the conventional way;


With the charger used in this pic I think all you need is the proper size pulley to run it in its optimum range and an intake run to it. Look up nomadtrash, it's from his car.
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Old 02-23-2009, 12:59 PM   #25
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okay so i did some lokking into supercharging the ka and only like three people have it completed i'm thinking i could just use a kit off the infinity G and place it on the exhaust side using the mounting pionts from the powersteering pulley to mount the s/c. and as far as i know at 7 to 10 psi i would be as quick as sti's and evo's wich is pretty good especialy since they wouldn't expect to be passed or for me to stay next to them without seeing a FMIC
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Old 02-23-2009, 01:51 PM   #26
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I don't think you will be making gains that big but if you do the entire car with that goal in mind it's not an unrealistic goal.
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Old 03-02-2009, 08:50 PM   #27
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okay so i talked to some people and they've suggested giving it a go and i can't see why not if i was originally looking to get only 200hp two the wheels 230 to 240 to the wheels is better and for less money just more time involed and it would be really cool and different
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Old 03-04-2009, 12:41 AM   #28
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just so you know. a 3" exhaust is not the best for a na ka. 2.5 is the largest you want to go. 3" actually creates more back pressure than 2.5 because it allows the gases to cool faster which makes them more dense and harder to push out the pipe.

my car= reman kade, injen short ram, stock cat, resonator, 2.5" resonator back=142whp, 151wtq

with the 3" the day before it made 137whp, 148wtq.

now if you go forced induction like everyone here wants you to, then my statement is null and void. good luck.
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Old 03-04-2009, 05:26 AM   #29
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just so you know. a 3" exhaust is not the best for a na ka. 2.5 is the largest you want to go.
For what NA KA? For YOUR application, 2.5" did yield better performance gains, but don's jump to conclusions and say a built NA motor should run the same exhaust as your stock motor. On a KA that is even mildly built NA (little bit more than just intake/exhaust), a larger diameter pipe will be more beneficial...

A higher HP motor needs to push that gas out faster. A higher comp motor has more gasses to get out and needs them out faster, especially if valve lift/duration have been modified. Too much back pressure is lack of win and there needs to be a happy balance between flow restriction and velocity. You want the exhaust to exit the combustion chamber and speed along at the highest velocity possible - you want a FAST exhaust flow.

On the NA KA I am building (full rebuild, overbore/high comp pistons, dual exhaust cams, dual valve springs, titanium valves, port/polish head and intake manifold, fuel system upgrades) I'm sure as hell not gonna run a 2.5" inch exhaust when I'm done. I'll be running a custom 3" mandrel bend full exhaust with a custom header as well.

I doubt this guy is gonna be running a 2.5 exhaust any time soon...




Quote:
Originally Posted by Greaser_
Its an insane drive. Spins 275's out back like a turbo car.
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Old 03-06-2009, 11:14 PM   #30
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Quote:
Originally Posted by jspeedm View Post
just so you know. a 3" exhaust is not the best for a na ka. 2.5 is the largest you want to go. 3" actually creates more back pressure than 2.5 because it allows the gases to cool faster which makes them more dense and harder to push out the pipe.

my car= reman kade, injen short ram, stock cat, resonator, 2.5" resonator back=142whp, 151wtq

with the 3" the day before it made 137whp, 148wtq.

now if you go forced induction like everyone here wants you to, then my statement is null and void. good luck.
If i amy correct you. The reason your 2.5" helped make more power was becuase it aided in cylinder SCAVENGING. A 3" pipe DOES NOT create back pressure. Pressure is like a measurement of restriction. So what youd be saying is the smaller or bigger you go, no matter what the more backpressur you will see, NO. If you blow through a small straw and a big straw, which one flows more velocity. If you blow through the big straw you flow more AIR or VOLUME. Thats he same thing with exhuast. The smaller pipe flows so fast it pulls the exhuast gases with it. The bigger you go the the slower the engine flows meaning that exhuast gases will not leave the cylinder as fast. Scavenging and backpressure are different. Big pipes hurt scavenging. Small pipes or bends gain backpressure.


Backpressure is not good.
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