Do any of you have a before and after dyno numbers for your ITB setup? I've heard conflicting reports that they're not streetable. some say yes. others say no. I've heard that they kill low end torque and don't really start making power until around 4k. Any truth to this?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by xonn &raquo;</TD></TR><TR><TD CLASS="quote">Do any of you have a before and after dyno numbers for your ITB setup? I've heard conflicting reports that they're not streetable. some say yes. others say no. I've heard that they kill low end torque and don't really start making power until around 4k. Any truth to this?
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ITB's can be very streetable. Extra care needs to be taken of course and driving in the rain with the hood open isn't advisable .

Depending on the ITB's they can be tuned/ designed to make better low end power, mid range or high end power. You can get Toda, TWM or other off-the-shelf ITB's but each was designed to excel better for their particular application. They were designed to produce more power at particular RPM range based on the width of the TB, length of air horns and position of the injectors. If you are serious about getting ITB's you may want to look into a set which can be designed for your particular setup/ type of racing. Also it would be smart to look into a stand alone engine management system also, AEM ems is what I use, but any descent one should do fine.

Whom ever your speaking with doesn't have much if any real life experience working with ITB's. These are the same people who go around saying that Toda B's C's and D's don't idle well. They do if you know what your doing.


Modified by Christian at 12:59 PM 5/22/2003

 

Me and my buddies just put TWM on a customers integra and yes his car will be driven daily it all depends on how you tune it. We are still in the process of tuning them. But we are also running electromotive on the car as well. TWM really are not worth it if you don't have a built motor with high compression. On a stock motor they really won't show their true potential opposed to a high compression race motor. And I"m not trying to say your motor isn't built.

 

What kind of compression do you feel is required to best take advantage of the ITBs? (range?)

Thx,

Mark

 

i am going to run them with 12.5 on the street daily, with the motor sitting in the shop now

 

12.5 compression is pretty decent compression ratio for TWM even though most race motors who have them are running like 15.1 compression and up. But this is going to be hybridvteceg daily driver so 12.5 is good as long as he has good tunning or some type of standalone system.

 

I am about to rebuild and will be running 14:1 with my ITB but the car is primarily a Trailer queen. Although I did take it out this morning to run some errands. She was sitting in the garage for a month and needed to stretch her legs abit.

 

So I probably can't get away with using something like an SMT-6 to control fuel eh?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by goforbroke &raquo;</TD></TR><TR><TD CLASS="quote">12.5 compression is pretty decent compression ratio for TWM even though most race motors who have them are running like 15.1 compression and up. But this is going to be hybridvteceg daily driver so 12.5 is good as long as he has good tunning or some type of standalone system.</TD></TR></TABLE>
hondata and the crap built out of the block

 

heres good link that i have found on ITBs...


https://honda-tech.com/zerothread?id=417663

hope this helps...

Blaze

 

just found some ''quad'' itb for the bseries motor complete for $1380. anyone heard of em? found em on ebay---of course. all the cheap rice crap shows up there. is this one of those times?

http://cgi.ebay.com/ebaymotors...82307