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Old 12-05-2004, 06:59 PM   #1
RBS14
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ITB's for my ka24de finished. *pics

here's what I've been working on the past couple days. They're all done and ready to go on my S14, except for the fact that I don't have my standalone.













Bet ya havn't seen that before eh? haha
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Old 12-05-2004, 07:02 PM   #2
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Looks sweet. What's the approximate HP gain on that?
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Old 12-05-2004, 07:02 PM   #3
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Completely Awesome!!!
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Old 12-05-2004, 07:03 PM   #4
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" OooAhhhhh " Thats some nice work!
Lets see some pics when it's on the car! And a dyno sheet would be sweet too!
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Old 12-05-2004, 07:04 PM   #5
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I like it. All motor. Scott this will be very drivable with usable power if it is tuned correctly.

I have a hook up on haltech if you are still looking.

Give us some specs man. Brands sizes.
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Old 12-05-2004, 07:05 PM   #6
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nice set up..what did the itbs come off of btw?
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Old 12-05-2004, 07:06 PM   #7
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very nice.

hard to tell from the pics, are the bends smooth between the itbs and runners?

what are you doing for airflow metering and a filter?
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Old 12-05-2004, 07:06 PM   #8
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Did you port match the ITB's to the Mani. I think you're going to run into some flow problems.
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Old 12-05-2004, 07:08 PM   #9
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haha sorry.

'03 GSXR 1000 TB's. Secondary butterflies removed. Stock S14 intake mani, runners chopped off.

Luke, thanks for the offer, but I'll be using a megasquirt. I'll be sure to post vid and dyno charts when they are on the car.

Yes, I filed out the runners to match up with each TB. Pics make the bends on #1 and #4 look tighter than they are.

Run into flow problems with ITB's? hahahahah
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Old 12-05-2004, 07:09 PM   #10
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Details? that shit is awesome...
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Old 12-05-2004, 07:09 PM   #11
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Old 12-05-2004, 07:13 PM   #12
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fuckin sweet
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Old 12-05-2004, 07:29 PM   #13
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Quote:
Originally Posted by RBS14
haha sorry.

'03 GSXR 1000 TB's. Secondary butterflies removed. Stock S14 intake mani, runners chopped off.
my brother was doing this to his GSR then later decided to sell it and do turbo but dont u think those are a tad bit too small?
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Old 12-05-2004, 07:41 PM   #14
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no, actually they are a great size for our engines. They are within about 2mm of the diameter of the stock intake manifold runners, which is great. If you were to use TB's much bigger than these, you would have issues with vacuum. Most aftermarket ITB's for 4 cylinders use TB's between 40mm and 45mm. The ones I used are 43mm.
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Old 12-05-2004, 07:59 PM   #15
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mad fucking props to you my man. dont hold out on us, keep us updated on this project, i have been thinking about doing that from day one with my KA.
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Old 12-05-2004, 08:00 PM   #16
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most 4cyl use ITB around 40-45mm but for wat size engine?

ITBs can be found all over the honda world and they are 1.8L as we know. most of the time they use 45mm minimum for ITB. we are 2.4L. some honda people use 48 and even 50mm for a better top end.

a 43mm used on a 1.8 is mid range goal. your using 43mm on a 2.4 thats y i said "isnt it a tad bit too small?"

what is your power goal?
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Old 12-05-2004, 08:01 PM   #17
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you are a MADMAN and i think i wanna know WTF the gains are on what appears to be insanity!


ROCK!
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Old 12-05-2004, 08:10 PM   #18
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those guys who use TB's bigger than 45mm cant hardly idle because they are so big. They also make NO low-end power. I'd like to keep a *little* low end power and torque below 4k. I can also change the characteristics of the TB's dramatically by simply changing velocity stacks. I could have gone bigger but these TB's were only $165 shipped, as opposed to $1000+ for bigger ones. I'm too poor to spend that kind of $.

Power goal? as high as I can.
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Old 12-05-2004, 08:11 PM   #19
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thats insane!!! keep us updated.
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Old 12-05-2004, 08:20 PM   #20
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So awesome!
see, now this is what we need to be seeing here on the forums.
keep up the good work man.
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Old 12-05-2004, 08:24 PM   #21
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Quote:
Originally Posted by RBS14
those guys who use TB's bigger than 45mm cant hardly idle because they are so big. They also make NO low-end power. I'd like to keep a *little* low end power and torque below 4k. I can also change the characteristics of the TB's dramatically by simply changing velocity stacks. I could have gone bigger but these TB's were only $165 shipped, as opposed to $1000+ for bigger ones. I'm too poor to spend that kind of $.

Power goal? as high as I can.
1. I've seen 1.8L engines make 15whp in the midrange 4.5-6.5k. 6-9whp up top. This is on 45mm ITBs!

2. They idle just fine

Low end is 4k? isn't your redline 6.5k? Your definition of 'low end' is actually 'mid-range'.

You wont be able to change your ITBs characteristics to have more 'top end' b/c of the 43mm throttle plate. By adding a velocity stack, your gains will be placed even lower in whole rpm band.

Again, your ITBs will be too small for a 2.4L engine.

PS: this is SilviaDriver's brother (a honda owner)
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Old 12-05-2004, 08:27 PM   #22
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Quote:
Originally Posted by MakotoS13
you are a MADMAN and i think i wanna know WTF the gains are on what appears to be insanity!


ROCK!
It's not that crazy, home made ITB's have been the hotness on Honda's for probably about a year now, if not more.

And saying a 45mm can't idle is just wrong, the TWM setup on Honda's are all 50mm or bigger and they don't have problems idling.

Just one quick question, any reason you aren't using the injector mounts on the TB's?
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Old 12-05-2004, 08:28 PM   #23
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cool deal scooter
but still will be slow as fuck
hahahahaha j/p bro

good luck
whats th eta to get this running? 2 years? GET A JOB!! hahahaha
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Old 12-05-2004, 08:34 PM   #24
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Quote:
Originally Posted by atom
It's not that crazy, home made ITB's have been the hotness on Honda's for probably about a year now, if not more.

And saying a 45mm can't idle is just wrong, the TWM setup on Honda's are all 50mm or bigger and they don't have problems idling.

Just one quick question, any reason you aren't using the injector mounts on the TB's?
atom hit the nail on the head. The honda world is extremely seasoned when it coems to ITBs.

BTW, using the GSXR injector locations will aid in better fuel atomization and give you more power. An injector position too far away will lead to idle problems as fuel will 'puddle'.

Props for trying it but you're going to be disappointed.
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Old 12-05-2004, 08:40 PM   #25
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I'm not going to argue with you (silviadriver) and/or your brother. I think these will be just fine for the ka. They have been used with great results on sohc's, so I don't see why it won't work on mine. TWM doesn't even make a kit for this engine, and the kits they do make are $1500 and up. I did this whole thing for $250, with stacks. I'd rather save a thousand+ dollars than get an extra 5hp up top. I guess you could justify paying that, but I can't.

Thanks for your input tho. I just don't happen to agree with it.

Cheers!
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Old 12-05-2004, 08:44 PM   #26
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if driftaholics high comp ka lived, i would have liked to see these on his car..
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Old 12-05-2004, 08:44 PM   #27
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SR

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Old 12-05-2004, 08:44 PM   #28
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Quote:
Originally Posted by RBS14
I'm not going to argue with you (silviadriver) and/or your brother. I think these will be just fine for the ka. They have been used with great results on sohc's, so I don't see why it won't work on mine. TWM doesn't even make a kit for this engine, and the kits they do make are $1500 and up. I did this whole thing for $250, with stacks. I'd rather save a thousand+ dollars than get an extra 5hp up top. I guess you could justify paying that, but I can't.

Cheers!
No one is really arguing. This is a discussion. Have fun.
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Old 12-05-2004, 08:47 PM   #29
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So, what do you not agree with?

50mm ITBs idle fine.

45mm ITBs are seen to gain midrange. More so than high end. (1.8L)
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Old 12-05-2004, 08:52 PM   #30
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Quote:
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Badass

that is fucking BADASS!!!!!

cant wait to hear a sound clip man
gotta love the na, turbos are for pussies
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