LS/Vtec 2.1L with Hayabusa ITB set-up (56k beware) - Honda-Tech


LS/Vtec 2.1L with Hayabusa ITB set-up (56k beware)

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Old 07-01-2004, 03:47 PM   #1
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Default LS/Vtec 2.1L with Hayabusa ITB set-up (56k beware)

The set-up:
GE Stroker Kit 95mm stroke
GSR Head, slightly ported on exhaust side
11:1 compression
RS sleeve 84mm
RS cams
Hayabusa ITB
JDM Type R DC 4-1
RC 310cc injectors
Kenji chip











Just got my new Digital camera.... Not to many people stoking with 95mm and thought I post this up. Had the block built since last year, pulled it out due to bent valves. Just got the motor back in with the Hayabusa ITB. Running stock Hayabusa TPS sensor with a chipped P28 ecu and VAFC. Will try to get on a dyno soon and will be running the car on the 10th.
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Old 07-01-2004, 03:52 PM   #2
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Default Re: LS/Vtec 2.1L with Hayabusa ITB set-up (kazino42)

Looks good, i'd like to see how the itbs do with a 2.1l both dyno numbers and times
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Old 07-01-2004, 03:59 PM   #3
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Default Re: LS/Vtec 2.1L with Hayabusa ITB set-up (RenoRacing)

the stock hayabusa TPS works without modification?
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Old 07-01-2004, 04:15 PM   #4
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Default Re: LS/Vtec 2.1L with Hayabusa ITB set-up (DefiantGSR)

It works with the VAFC, I can adjust it 0.5V but it would open only to 3.8V @ full throttle. I have it set around 1.2V to open 4.5V @ full throttle and using the VAFC to turn down the fuel -30% @ idle. I didn't have time to modify it with the stock honda TPS. I ran it on my B18C, gain more top end and knock down 2 tenth of my time.
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Old 07-01-2004, 05:07 PM   #5
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Default Re: LS/Vtec 2.1L with Hayabusa ITB set-up (kazino42)

sick....very, very sick. i have some homies that run cbr throttles.
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Old 07-01-2004, 07:35 PM   #6
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Default Re: LS/Vtec 2.1L with Hayabusa ITB set-up (SpoonDC2R)

Please keep us updated on this engine...we need numbers!!!
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Old 07-01-2004, 08:00 PM   #7
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Default Re: LS/Vtec 2.1L with Hayabusa ITB set-up (CompressionFed)

Motor looks good and setup sounds sick. Question for you though, how come your ITBs look upside down and backwards from other Suzuki ITBs? The GSXR 750 and 1000 have the injectors and the vacuum ports on the top, but yours have the injectors on what would be the bottom of regular Suzuki ITBs. Also, your Throttle rotor and TPS are on opposite sides...weird...
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Old 07-01-2004, 08:24 PM   #8
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Default Re: LS/Vtec 2.1L with Hayabusa ITB set-up (b16a ferio)

I had a GSXR 750 on before the Hayabusa 1300, they are both opposite of each other. Hayabusa 1300 has the vacuum hose on the bottom, instead the top like the GSR 750.
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Old 07-01-2004, 08:39 PM   #9
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Default Re: LS/Vtec 2.1L with Hayabusa ITB set-up (RenoRacing)

looks good
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Old 07-01-2004, 09:56 PM   #10
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Default Re: LS/Vtec 2.1L with Hayabusa ITB set-up (stock93cx)

That head is in need of port work. Nice set up, not cheap.
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Old 07-01-2004, 10:12 PM   #11
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Default Re: LS/Vtec 2.1L with Hayabusa ITB set-up (alld16a)

Wow sick a$$ setup
thats like my dream setup


-Brian
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Old 07-02-2004, 12:58 AM   #12
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Default Re: LS/Vtec 2.1L with Hayabusa ITB set-up (vtec69)

Very sessy...

Is the Kenji program specifically for ITB's? Or for a manifold setup? Just curious if you're having the low rpm, idle & cold start fuel enrichment issues due to the lack of vacuum? Or did you just adjust that to your liking using the VAFC? Did you have to take out an assload of fuel down low?
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Old 07-02-2004, 06:37 AM   #13
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Default Re: LS/Vtec 2.1L with Hayabusa ITB set-up (ZigenBallz)

Kenji chip was set up for my B18c with CTR. I having no problem @ idle, I had to take down about 30% @ idle. It did ran a little rich on my B18c, until it warm up. I guess a lot a people was running rich. I was surprise, ran fine with the RC 310 injectors. I had the stock injectors on and it would start to lean out @ WOT, probably due to the fact that I was getting way more air. I guess my old set-up was high compression and needed the extra fuel. Since, the new set-up is around 2.1L, it idles and matched up pretty good. I can tell you it has some awesome torque.
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Old 07-02-2004, 06:39 AM   #14
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Default Re: LS/Vtec 2.1L with Hayabusa ITB set-up (ZigenBallz)

are you using a vacum log and do you have the IAC hooked up to the vacum log?
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Old 07-02-2004, 07:43 AM   #15
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Default Re: LS/Vtec 2.1L with Hayabusa ITB set-up (rice4life)

The vacuum log is on the firewall and the IAC is plug in and wire tied.
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Old 07-02-2004, 08:11 AM   #16
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sick setup man..Can't wait to see the dyno :-)
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Old 07-02-2004, 08:47 AM   #17
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Quote:
Originally Posted by ce
sick setup man..Can't wait to see the dyno :-)
Me too. keep us posted
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Old 07-02-2004, 10:59 AM   #18
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Default Re: LS/Vtec 2.1L with Hayabusa ITB set-up (kazino42)


so so sick
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Old 07-02-2004, 11:01 AM   #19
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Wow, how about you tell us how it runs??
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Old 07-02-2004, 12:49 PM   #20
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Default Re: LS/Vtec 2.1L with Hayabusa ITB set-up (kazino42)

How many miles you have on that bottom end?
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Old 07-02-2004, 01:10 PM   #21
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Default Re: LS/Vtec 2.1L with Hayabusa ITB set-up (Tbone)

I probably got over 5k miles. Last year I drove it to Woodburn Raceway, Or and back to Boise, ID and put over 1k miles. Daily driving it and putting easy 300 miles a week going back from work and every where else.
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Old 07-02-2004, 02:07 PM   #22
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Default Re: LS/Vtec 2.1L with Hayabusa ITB set-up (kazino42)

sick set up

wish I had that type of hook up to install something like this

but I guess I am happy

but ne ways

great job please let us know what times and the sheet to see how bad this puppy really can be


BiG thumbs up for u and that set up bro

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Old 07-02-2004, 02:26 PM   #23
 
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Default Re: LS/Vtec 2.1L with Hayabusa ITB set-up (krazie1)

did you cut and weld the manifold runners yourself, and what mani did you cut those off of?
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Old 07-02-2004, 02:38 PM   #24
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Default Re: LS/Vtec 2.1L with Hayabusa ITB set-up (kazino42)

whats that torque curve looking like with the setup?
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Old 07-02-2004, 02:49 PM   #25
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Default Re: LS/Vtec 2.1L with Hayabusa ITB set-up (ian)

damn man looks like a nice setup. cant wait to see some dyno numbers.
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