KA24 Headwork/Portwork pics flow numbers posted page 3.

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Greaser
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KA24 Headwork/Portwork pics flow numbers posted page 3.

Post by Greaser » Wed Jan 14, 2009 7:03 pm

Hey peeps heres some pics from the starting of my current motor project, heres the plan/goals: which have changed from all motor to a KA-T

500wheel KA-T
90mm throttle body
.550" lift cam
custom header
stock bore or .5 oversize
eagle rods
9:1 compression
e85/100octane or higher dunno yet
M112 EATON supercharger with 2-1 gilmer drive
15-20psi
powerband starts at 2k stops at 7k
fun times


After some review of the cutaway of the ka head it has ALOT ALOT of potential. With 36mm intake valves and 32 mm exhaust valves its has the potential to flow in the 350-400 cfm region. Something i'm attempting to reach. Heres some pics of the start of R&D.

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Last edited by Greaser on Wed Jan 21, 2015 2:50 pm, edited 2 times in total.

oskars13kat
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Post by oskars13kat » Wed Jan 14, 2009 7:58 pm

damnn that looks like too much work, good luck and keep us updated

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Post by myowncasualty » Wed Jan 14, 2009 8:25 pm

very cool project :shock:
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Post by 1993ka24det » Wed Jan 14, 2009 8:45 pm

keep up the good work, if you add boost , you would have 24hp per 1 psi than 12.5
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Greaser
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Post by Greaser » Wed Jan 14, 2009 8:48 pm

1993ka24det wrote:keep up the good work, if you add boost , you would have 24hp per 1 psi than 12.5
hahah i'd have a square wave power/torque curve. this motor, if applied to someone with money would make 1500hp if equipped with a GT47@40-50psi


dude, are those exhaust and wastegate pipes in front of drvrs rear tire?

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Post by nissanfanatic » Wed Jan 14, 2009 9:01 pm

Are you doing the work at MRD?

Thanks for doing this! I would like to have a really well flowing head someday.
-Cory

1992 Nissan 240sx KA24DE-Turbo [ GONE ]
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Post by Greaser » Wed Jan 14, 2009 9:08 pm

nissanfanatic wrote:Are you doing the work at MRD?

Thanks for doing this! I would like to have a really well flowing head someday.
yep

no problem. come check it out. or wait till i start header testing on the old 220ish rwhp motor to see the whole car/motor.


some info i've learned

GSR B18 head i think has a 30 or 32mm intake valve. ka EXHAUST valve is 31.xx something.
K20A2 uses a 36mm ircc intake valve and when professionally ported flows 350-400 depending on who does it.


My boss who owns MRD compared B series to KA valves and went off. This is when i decided to research further and found alot alot of potential. haha. he owns a 250whp B20vtec. we both have the potential to build a 350wheel motor but not the money so we have been talking **** back and forth.

i need to buy a flow bench.

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Post by nelson240sx » Thu Jan 15, 2009 6:35 am

Hell of a project. Will keep a eye on this thread.

GL....lets see what she can do.
KA24E-T 06/06 to 10/09 (T25 then H1C Holset) - sold
KA24DE-T 12/09 to 10/11 (T4/TO4E) - sold
KA24DE-T 11/14 to 8/15 (T4/TO4S BB) - sold
SR20DE-T exo-car build 06/13 to current (EFR6758) - swapped
^ now VH45DE-T (Billet T04S BB)
Miata 1.8 turbo 9/15 to 3/17 (VF39) - sold
KA24DE-T build 8/17 to 4/19 (EFR6758)
12.6:1 Turbo KA-T 4/19 to current (EFR7163)
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Post by weiRtech » Thu Jan 15, 2009 6:40 am

i know nothing about this stuff, but would love to see how this gets tested. please keep this thread updated.

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Post by smracing » Thu Jan 15, 2009 7:20 am

You are going to need to do something to keep the cylinders from moving around with a 90.5 bore.

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Post by Greaser » Thu Jan 15, 2009 8:35 am

we're going to do what we do with B series stuff.
http://www.markingpendepot.com/browsepr ... (F-2).HTML


they arent moving in my 90mm application or atleast it hasnt self destructoed yet.

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Post by smracing » Thu Jan 15, 2009 12:35 pm

The GT3 guys keep the stock bore for rigidity. My block is hardblocked to 1 inch from the deck. You might be fine, but at 350hp I'm almost sure it will move around enough to cost power. May not come apart, but still cost power. It may cost more power than the additional ci's make. The bigger bore is real nice for deshrouding the valves. One thing you may already know, the felpro gasket won't work with 90.5mm bore. Look for a block with as little core shift as possible. I checked about 20 blocks before picking mine. S13 blocks seem to be machined a little better. Many of the CORR guys run truck blocks without squirters and girdle. Are you going drysump? I'd plug the squirters either way.

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Post by Greaser » Thu Jan 15, 2009 4:15 pm

smracing wrote:The GT3 guys keep the stock bore for rigidity. My block is hardblocked to 1 inch from the deck. You might be fine, but at 350hp I'm almost sure it will move around enough to cost power. May not come apart, but still cost power. It may cost more power than the additional ci's make. The bigger bore is real nice for deshrouding the valves. One thing you may already know, the felpro gasket won't work with 90.5mm bore. Look for a block with as little core shift as possible. I checked about 20 blocks before picking mine. S13 blocks seem to be machined a little better. Many of the CORR guys run truck blocks without squirters and girdle. Are you going drysump? I'd plug the squirters either way.
how to you measure for core shift? i had thought about checking out a truck block. I was under the impression the truck blocks came without a girdle anyway. i forget about the dohc frontier motors.

I think i'm going to HAVE to drysump it if i plan on coming close to my goal. cuz at my power goal thats 87hp a cylinder and to do that with about 39cubic inches im gonna have to spin to 9k and flow 350+cfm. I dont even want to test the factory oil pump to those specs. One thing i do like about the SOHC blocks is the external oil pump that looks real beefy. At a minium on all my motors i plug the oil squirters.

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Post by 1993ka24det » Thu Jan 15, 2009 6:32 pm

Greaser yes those are my exhaust 3.5 inch and wastegate 2 inch
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Post by smracing » Fri Jan 16, 2009 8:41 am

Greaser wrote:
smracing wrote:The GT3 guys keep the stock bore for rigidity. My block is hardblocked to 1 inch from the deck. You might be fine, but at 350hp I'm almost sure it will move around enough to cost power. May not come apart, but still cost power. It may cost more power than the additional ci's make. The bigger bore is real nice for deshrouding the valves. One thing you may already know, the felpro gasket won't work with 90.5mm bore. Look for a block with as little core shift as possible. I checked about 20 blocks before picking mine. S13 blocks seem to be machined a little better. Many of the CORR guys run truck blocks without squirters and girdle. Are you going drysump? I'd plug the squirters either way.
how to you measure for core shift? i had thought about checking out a truck block. I was under the impression the truck blocks came without a girdle anyway. i forget about the dohc frontier motors.

I think i'm going to HAVE to drysump it if i plan on coming close to my goal. cuz at my power goal thats 87hp a cylinder and to do that with about 39cubic inches im gonna have to spin to 9k and flow 350+cfm. I dont even want to test the factory oil pump to those specs. One thing i do like about the SOHC blocks is the external oil pump that looks real beefy. At a minium on all my motors i plug the oil squirters.
You measure core shift with a ultrasonic thickness micrometer. Not many people have them. Our M&TE lab has several.

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Post by nelson240sx » Fri Jan 16, 2009 7:26 pm

i thought i saw that name "greaser" in a 240 vid somewhere.

http://www.youtube.com/watch?v=MfQ4eA62 ... re=related

Awsome header through the fender
KA24E-T 06/06 to 10/09 (T25 then H1C Holset) - sold
KA24DE-T 12/09 to 10/11 (T4/TO4E) - sold
KA24DE-T 11/14 to 8/15 (T4/TO4S BB) - sold
SR20DE-T exo-car build 06/13 to current (EFR6758) - swapped
^ now VH45DE-T (Billet T04S BB)
Miata 1.8 turbo 9/15 to 3/17 (VF39) - sold
KA24DE-T build 8/17 to 4/19 (EFR6758)
12.6:1 Turbo KA-T 4/19 to current (EFR7163)
Burning corn since '09

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Post by flip240 » Sat Jan 17, 2009 5:51 am

pretty interesting, i hope this works out well!
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Post by torch'd » Sat Jan 17, 2009 11:06 pm

wow thats amazing.... i so want you to port my ca head now rofl.
going fast, i can do that... this going sideways thing is tricky.....

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Post by oaznbeasto » Thu Mar 26, 2009 1:25 pm

such a great project, this will be some crazy fabrication work

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Post by all shal perrish » Thu Apr 02, 2009 11:04 am

so any updates.?
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Post by AK-Z » Fri Apr 03, 2009 1:06 am

Damn. Would of been easier to just shape one out of wax and loss wax cast it :p IMO

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Post by ghostchild316 » Sat Apr 04, 2009 8:30 pm

What's the main reason/advantages for deleting the oil squirters?
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Post by all shal perrish » Sat Apr 04, 2009 9:20 pm

ghostchild316 wrote:What's the main reason/advantages for deleting the oil squirters?
+1
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Post by Walperstyle » Mon Apr 06, 2009 9:10 pm

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Post by ka-torqy » Mon Apr 06, 2009 10:11 pm

major credit to you for doing this as its been needing to be done with a more in depth of the ka head
i knew it had major potential just needed someon to do the r&d but i also plan on port and polishing my head any tips for me PM me (ive been researching ALOT and i feel more than confident bout doing it myself now but would always like more info)

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Post by ka-torqy » Mon Apr 13, 2009 9:31 pm

ANY UPDATE ON THISSSSSS

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Post by oaznbeasto » Wed Apr 15, 2009 9:41 pm

+1 on updates, this is so interesting and just seems sick :D

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Post by omgtofu » Fri Apr 17, 2009 3:40 pm

very cool

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Post by Greaser » Tue Sep 22, 2009 1:20 pm

updates people!

95% done with fab work on the head. Need to weld up coolant return on the back of the head and then it gets dropped off at the machine shop for....

resurface
pressure test
intake and exhaust flange resurface
flow bench test
cut valve seats
new guides

I went through the runner on cylinder number 1. so i defconned (allumium epoxy) runner one and decided to change water flow through the motor/head.

be nice, its not done yet.

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Post by sdaigle240 » Tue Sep 22, 2009 1:42 pm

WOW, the time into that is unestimatable. u rock.
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