almost finished my ITB for F/I setup

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Old Mar 12, 2008 | 08:29 PM
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Default almost finished my ITB for F/I setup






the throttle bodies camed from a cbr1000rr
they are not 100% finished and they will probably be powercoated before i install them on my LS-T non-vtec powaa
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Old Mar 12, 2008 | 08:56 PM
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is that gonna be to tall where it will hit the firewall?
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Old Mar 12, 2008 | 11:16 PM
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Default Re: almost finished my ITB for F/I setup (cast98integra)

what does the inside of the plenum look like.
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Old Mar 13, 2008 | 05:33 AM
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my question is, are you going to run 2 sets of injectors?
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Old Mar 13, 2008 | 07:08 AM
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How are you sealing the connection betweek the TB and the runner? It looks like it might be O ringed and then using set screws or something... In any case, looks like some nice work!
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Old Mar 13, 2008 | 07:25 AM
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Default Re: (Bakeoff)

Benefits of this vs 1 large (75mm?) throttle body? Work looks great, just interested to learn the "why"...
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Old Mar 13, 2008 | 11:16 AM
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no it's going to clear the firewall pretty well mesure twice cut once , the interior of the plenum will be polished ( as best as i can ), and no i will not run 2 set of injectors, the injectors holes on the TBs will be tapped and i will put some vaccuum plugs. the TBs and the manifold will be squeesed with o-rings using a set of SS brakets and screws.
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Old Mar 13, 2008 | 11:21 AM
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Default Re: Re: (cast98integra)

Nice!
I'm also in for seeing what the benefits are of boost +itb's Does it help for tuning/responsiveness?
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Old Mar 13, 2008 | 11:22 AM
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Default Re: (T4 Neon)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by T4 Neon &raquo;</TD></TR><TR><TD CLASS="quote">Benefits of this vs 1 large (75mm?) throttle body? Work looks great, just interested to learn the "why"...</TD></TR></TABLE>

+1

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Old Mar 13, 2008 | 02:37 PM
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nice! i've toyed around quite a bit with doing the same thing on an LS-T. good luck, and let us know the results!
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Old Mar 13, 2008 | 03:23 PM
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Default Re: (full Circling)

Benefits? i would say doing my own stuff , Itb are known for their capacity to ''flatten'' the torque curve, +++throttle response, equal amount of air in each cylinders, benefits Vs a 75mm Tb? i have 4 throttle of 44mm each instead of one of 75 4 X 44mm = 176mm of pure joy. i'll post some more when it will be installed
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Old Mar 13, 2008 | 08:21 PM
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looks good. I plan on doing the same thing but with a single cam. have all ready welded and re-profiled the cyilnder head. I have 954rr itb's. had a different idea on the connecting them to the itb's to the runners but I like your idea as well. my idea is much more crude lol. only if I had acess to a mill like it appears you do.
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Old Mar 13, 2008 | 09:56 PM
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Default Re: (cast98integra)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by cast98integra &raquo;</TD></TR><TR><TD CLASS="quote">Benefits? i would say doing my own stuff , Itb are known for their capacity to ''flatten'' the torque curve, +++throttle response, equal amount of air in each cylinders, benefits Vs a 75mm Tb? i have 4 throttle of 44mm each instead of one of 75 4 X 44mm = 176mm of pure joy. i'll post some more when it will be installed </TD></TR></TABLE>


your math isnt quite right....you need area of the throttle plates not just the diameters...

the 75mm throttle is 441.79 sq mm and the combined 44mm throttles are 608.2 sq mm
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Old Mar 14, 2008 | 04:56 AM
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Default Re: Re: (cast98integra)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by cast98integra &raquo;</TD></TR><TR><TD CLASS="quote">i will not run 2 set of injectors, the injectors holes on the TBs will be tapped and i will put some vaccuum plugs.</TD></TR></TABLE>

that is a great solution... i wouldn't have thought of that.
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Old Mar 16, 2008 | 09:11 PM
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props on being different but I think that plenum would defeat the purpose of ITB's....equal air flow for each cylinder. IMHO, that pelnum will distribute air unevenly.
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Old Mar 17, 2008 | 04:42 PM
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Default Re: (paulzy)

i don't know bro w'll see i'll post the dyno sheet as well when i'm done
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Old Mar 17, 2008 | 04:44 PM
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nice cant wait to see what it will look like when it is done
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Old Mar 17, 2008 | 08:16 PM
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Default Re: (twinturbosupra123)

itbs gotta work good with FI, they come factory on skylines!
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Old Mar 18, 2008 | 08:04 AM
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I think it'll work nicely ...
http://youtube.com/watch?v=CGVEhW3cqLw
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Old Mar 18, 2008 | 07:15 PM
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Default Re: (cast98integra)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by cast98integra &raquo;</TD></TR><TR><TD CLASS="quote">Benefits? i would say doing my own stuff , Itb are known for their capacity to ''flatten'' the torque curve, +++throttle response, equal amount of air in each cylinders, benefits Vs a 75mm Tb? i have 4 throttle of 44mm each instead of one of 75 4 X 44mm = 176mm of pure joy. i'll post some more when it will be installed </TD></TR></TABLE>
your math is just a little off....your 4 - 44mm tb's have the same area as one 88mm....not 176mm...
edit ...didnt read down far enough to see that somebody already corrected your post.. lol
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Old Mar 19, 2008 | 08:15 AM
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Default Re: (antireversion)

If you put EGT sensors on each cylinder, you might be able to adjust the opening angles of each tb to make each cylinder's EGT match by controling air flow to each cylinder. That would improve overall engine efficiency if you can tune it proprerly...
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Old Mar 20, 2008 | 03:17 PM
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Default Re: (GPNY)

would there be any benifits of running a setup like this on an n/a application?
maybe easier to tune and better for a daily driver?
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Old Mar 21, 2008 | 12:27 PM
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i've this with an old school M5 that made 900 + hp with a diesel turbo lol
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Old Mar 21, 2008 | 01:23 PM
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Default Re: (honduh_head)

ITB'd turbo car will improve throttle response....a TON! and allow you to run the proper size plenum (as big as possible!)
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Old Mar 21, 2008 | 08:07 PM
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looks sick!!! more pics!!!
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