Author Topic: ITB'd KA24E  (Read 35761 times)

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Offline bungs

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Re: ITB'd KA24E
« Reply #30 on: Sep 23, 2005, 01:57AM »
Yeah I know first hand how time consuming uni is. Ah well, all in due time I suppose :)

Offline SSS

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Re: ITB'd KA24E
« Reply #31 on: Sep 23, 2005, 05:44PM »
Have you decided your runner length between the Tb's and the intake ports on the head? This would be something you would tune for your scenario i would think.

Stock tb ID is 60.0mm at the throttle plate, which is solid for a turbo setup, but your quad tb's have a collectivley huge area !
This is what i want to do too. Might be a bit rugged resorting the idle air sources since they will be behind the throttle etc...?

If i had an SR20 id spend a mere 200 on GTIR plenum and Tb's (no elecs) and put everything on it to suit from original bits. I dont know if the sr20det head from the GTIR is the same as all the others, maybe it all only bolts up on that particular pulsar gtir sr20 head.



It was between 9-10" from memory.

I can tap in a fitting per runner to add to the fittings in the actual tbs that are already there, for either a vacuum source or idle control. the fittings that are there currently are after the throttle plates which is quite helpful.
I'm just going to be making adaptors to run the stock idle control valves, and mount them elsewhere in the engine bay via extended vac hoses.

Offline Pingu

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Re: ITB'd KA24E
« Reply #32 on: Sep 23, 2005, 08:21PM »
It was between 9-10" from memory.

I can tap in a fitting per runner to add to the fittings in the actual tbs that are already there, for either a vacuum source or idle control. the fittings that are there currently are after the throttle plates which is quite helpful.
I'm just going to be making adaptors to run the stock idle control valves, and mount them elsewhere in the engine bay via extended vac hoses.

Perfect. I want those ITB's now also :P

Offline ka-t

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Re: ITB'd KA24E
« Reply #33 on: Nov 9, 2005, 05:32PM »
hey guys, just wondering if there are any updates on the construction of your ITB.

Offline fraz

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Re: ITB'd KA24E
« Reply #34 on: Nov 11, 2005, 05:03AM »

If i had an SR20 id spend a mere 200 on GTIR plenum and Tb's (no elecs) and put everything on it to suit from original bits. I dont know if the sr20det head from the GTIR is the same as all the others, maybe it all only bolts up on that particular pulsar gtir sr20 head.



Gti-r throttles wont fit non gti-r head, they have a different flange where it bolts to the head. I have seen then modified to fit a regular head, but i dont know how well it fitted.
Gti-r heads have the different intake flange, i think the dividers in the inlte ports extend closer to the manifold and they also have solid rocker pedestalls instead of hydraulic ones
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Offline SSS

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Re: ITB'd KA24E
« Reply #35 on: Nov 20, 2005, 01:04PM »
This has taken a back seat atm whilst i get the exhaust manifolds done.

Offline Cru1se_Missle

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Re: ITB'd KA24E
« Reply #36 on: Nov 20, 2005, 01:25PM »
however i only see positives. ITB's are the only way to go for a hardcore NA engine fullstop.


I agree with you 100% Adam
A mate of mine did a K20A (typeR engine) conversion into his civivc and also utilising ITBs and goodam did this thing go....
It pulled 11.5 down the 1/4 if im not mistaken.

Nevertheless, this engine ur building will be torque monster.
If only I knew how to do these type of mods.....
All the best with it Adam, looking forward to see the outcome.
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Offline STU84W

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Re: ITB'd KA24E
« Reply #37 on: Mar 28, 2006, 02:40PM »
I know this is a revival of an old thread, but i saw a ka24e in hot 4s, and using a custom intake and quad throttle bodies pull 150hp, making it the Horsepower hero at summernats.  just thought people would like to know the power figures.

congrats to whoever that was, assumably they'd be from here
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Offline Jecks

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Re: ITB'd KA24E
« Reply #38 on: Mar 28, 2006, 02:49PM »
which issue of hot4s was it from??
i want a copy...
I'm sick of my knob going all floppy and loose in my hand  :P 
I've been on probation for 21 years, can't make a decision without consulting the wife first  ::)

Offline chr1S

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Re: ITB'd KA24E
« Reply #39 on: Mar 28, 2006, 04:50PM »
Yeah, me too.

hmm.. i thought i was going to be the NA beast :P.
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Offline STU84W

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Re: ITB'd KA24E
« Reply #40 on: Mar 28, 2006, 05:33PM »
its the one coming out this month... i love subscription.  best birthday present ever.

i know its someone from here, cos i'm damn sure i've seen the engine bay setup before.  red rocker cover, braided hoses, custom throttle body..

haha, yeah chris, i wanted to be an NA king as well.  oh dear
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Offline chr1S

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Re: ITB'd KA24E
« Reply #41 on: Mar 28, 2006, 05:40PM »
hey that sounds like my engine










 :P
Don't let the opinions of the average man sway you. Dream, and he thinks you're crazy. Succeed, and he thinks you're lucky. Acquire wealth, and he thinks you're greedy. Pay no attention. He simply doesn't understand.

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to be fair, it wouldn't be ANTRX if we stayed on topic.

and if someone wasn't cranky at Chr1s for something he said...

Offline SSS

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Re: ITB'd KA24E
« Reply #42 on: Mar 28, 2006, 05:54PM »
Hmmm better get my ass into gear with my ITB setup, yes i know, i'm lazy.

Offline SSS

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Re: ITB'd KA24E
« Reply #43 on: Mar 30, 2006, 11:09AM »
anyone able to put up a scan of that article? (Siltara?)

Offline STU84W

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Re: ITB'd KA24E
« Reply #44 on: Mar 30, 2006, 12:34PM »
not really an article, just a quick write up.  i'll get one up tonite when i get home
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Offline SSS

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Re: ITB'd KA24E
« Reply #45 on: Mar 30, 2006, 01:27PM »
thanks :)

Offline SSS

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Re: ITB'd KA24E
« Reply #46 on: May 17, 2006, 12:54PM »
ok digging this up from the semi dead.

spaced out the itb's to line up with the intake ports on the KA head.
In the process of finalizing the new intake flange and connection flanges to bolt these ITB's up to the new intake manifold.
Buying -10 AN fuel rail to work with my 1000cc injectors that are going in with the new intake manifold.
from the same company i am buying this plenum extrusion to form the plenum for the ITB's:



and inside the plenum to connect the itb's to the actual plenum via silicon couplers will be 4 of these:



they are welded to the plenum. the plenum will have a 3" inlet to accomodate for my 3" cold side IC piping.

Offline SSS

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Re: ITB'd KA24E
« Reply #47 on: May 17, 2006, 01:07PM »
Whilst i don't expect enormous top end gains with these itb's, i am expecting to see a large improvement in midrange torque which will be the most noticeable gain and the aim of installing these.

I will have gtech numbers for both before and after too.

Offline chr1S

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Re: ITB'd KA24E
« Reply #48 on: May 17, 2006, 04:32PM »
hurry up  :P
Don't let the opinions of the average man sway you. Dream, and he thinks you're crazy. Succeed, and he thinks you're lucky. Acquire wealth, and he thinks you're greedy. Pay no attention. He simply doesn't understand.

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to be fair, it wouldn't be ANTRX if we stayed on topic.

and if someone wasn't cranky at Chr1s for something he said...

Offline pumbaplus

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Re: ITB'd KA24E
« Reply #49 on: May 17, 2006, 07:29PM »
hi dude, it takes big cohones to attempt this modd , so well done...
 
where abouts did you get the "trumpets" and plenum shape........ $$$$$

what are you doing to your box to survive this + turbo....??
\
why not go the twincam head?? / motor....? sounds like you want to go all out.
or is the 12valve head good for the numbers...

Offline chr1S

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Re: ITB'd KA24E
« Reply #50 on: May 17, 2006, 09:17PM »
adam likes the single cam :P. I dont think there is that much difference anyway...

and yes he has guts to do this..
Don't let the opinions of the average man sway you. Dream, and he thinks you're crazy. Succeed, and he thinks you're lucky. Acquire wealth, and he thinks you're greedy. Pay no attention. He simply doesn't understand.

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to be fair, it wouldn't be ANTRX if we stayed on topic.

and if someone wasn't cranky at Chr1s for something he said...

Offline SSS

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Re: ITB'd KA24E
« Reply #51 on: May 17, 2006, 09:29PM »
hi dude, it takes big cohones to attempt this modd , so well done...
 
where abouts did you get the "trumpets" and plenum shape........ $$$$$

what are you doing to your box to survive this + turbo....??
\
why not go the twincam head?? / motor....? sounds like you want to go all out.
or is the 12valve head good for the numbers...


velocity stacks will be from www.velocity-of-sound.com, plenum extrusion from www.rossmachineracing.com.
gearbox, i have a spare that will be rebuilt and all of its internals cryo treated for increased strength and wear resistance. it may get straight cut gears for 1st to 4th.

i was going to go dohc, but then it would have cost me about $2k including the purchase price of the head to build the head to how i want it.
i have 2 sohc heads, and i firmly believe that they are capable of pulling big numbers. some drag racers in puerto rico use the sohc as they are lighter than the dohc, rebello racing uses sohc KA's in their off road racing trucks which are pulling around the 300hp at the flywheel in NA form.
I did my own solid lifters for the sohc head (as well as noss's). When the bottom end is built, the engine will be good for around 7-7500rpm, if not 8000.

and yes he has guts to do this..

it's too late now mate, i've already got 50% of the parts and my forged pistons were ordered yesterday. ;D

Offline bungs

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Re: ITB'd KA24E
« Reply #52 on: May 17, 2006, 10:49PM »
adam likes the single cam :P. I dont think there is that much difference anyway...

single slammer ftw

hrmm wish i had forged goodness, 18psi daily would be nice :(

Offline chr1S

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Re: ITB'd KA24E
« Reply #53 on: May 18, 2006, 12:55AM »
yeah im going single slammer too.. with my spare engine im getting i have some plans.  :P
Don't let the opinions of the average man sway you. Dream, and he thinks you're crazy. Succeed, and he thinks you're lucky. Acquire wealth, and he thinks you're greedy. Pay no attention. He simply doesn't understand.

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to be fair, it wouldn't be ANTRX if we stayed on topic.

and if someone wasn't cranky at Chr1s for something he said...

Offline SSS

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Re: ITB'd KA24E
« Reply #54 on: May 18, 2006, 08:36AM »
single slammer ftw

hrmm wish i had forged goodness, 18psi daily would be nice :(

i still need to get some crower rods though, that i won't be able to get out of relatviely cheaper :(

Offline SSS

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Re: ITB'd KA24E
« Reply #55 on: May 18, 2006, 08:50AM »
The plenum material, fuel rail, and connection flanges have all been ordered, now i just have to wait. I'll be ordering the velocity stacks after i have had the connection flanges lasercut.

Offline chr1S

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Re: ITB'd KA24E
« Reply #56 on: May 18, 2006, 08:21PM »
what idea do you have planned for the plenum ?, Is it the same as in the picture ? How do you know it suits everything right ?

also, any chance of pictures ?
Don't let the opinions of the average man sway you. Dream, and he thinks you're crazy. Succeed, and he thinks you're lucky. Acquire wealth, and he thinks you're greedy. Pay no attention. He simply doesn't understand.

Quote
to be fair, it wouldn't be ANTRX if we stayed on topic.

and if someone wasn't cranky at Chr1s for something he said...

Offline SSS

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Re: ITB'd KA24E
« Reply #57 on: May 18, 2006, 09:55PM »
Cos i'll make it suit. ;D

Offline SSS

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Re: ITB'd KA24E
« Reply #58 on: Jun 6, 2006, 04:54PM »
Small update:

Fuel rail and plenum extrusion arrived from the US last week, still waiting on the flanges i need laser cut; because the flanges haven't been cut, i don't want to order the velocity stacks in case i get the wrong size (looking at about $200 for 4 stacks).


Offline MAG86

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Re: ITB'd KA24E
« Reply #59 on: Jun 16, 2006, 01:37PM »
where's this hot4s write-up thing anyway.... im sure im not the only one who is interested
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