itb's

[tegdude227]

i am stuck on the idea i just want itb's on my car it will be a daily driven car but my biggest question is how hard are they to tune and wat am i going to need besides the itb's in order for my car to idel normal and just to run like it is supposed to ? any info is helpful thanx

[Snoopy]

do you want them just because they are "cool"? or do you have a heavily modified engine that will benefit from them?

[subaruwrx18]

^^^^ juding from his sig it looks like he has simple bolt ons

Originally Posted by tegdude227

i am stuck on the idea i just want itb's on my car it will be a daily driven car but my biggest question is how hard are they to tune and wat am i going to need besides the itb's in order for my car to idel normal and just to run like it is supposed to ? any info is helpful thanx

as much as i LOVE ITBs they are not meant for daily driving. im sure with enough money and tunning it could be done, no doubt. ITBs are meant for heavily modified race engines that are built to run hard. the thing is with ITBs, u are either on them or ure not. there really isnt an in between. the whole point of them is to allow maximum air flow at wide open throttle. not to menchin ur engine will be sucking all the dirt and debris that are under ur hood on a daily basis. if u were to run them on a daily driver u will need an engine management system that will let u tune them out to their entirety. the air/fuel ratio must be perfect, especially when at idle and wide open throttle. ITBs are most commonly used on cars that have high lift cams(stage 2 or higher), high compression, stout head/block, at minimum a header with a 2.5" collector, high flow cat if not test pipe, full exhaust, upgraded fuel system to support all the air ripping through ur engine. there is a lot more to ITBs than one might think. its not a mod that u just slap on ur ride and go, and considering if its ur daily driver.

[sleeper15]

Yeah, i was thinking about ITB's for my car, even thoughi have a heavly modded motor, it wouldn't be fesable. My car is plenty fast, and, i still drive it on the road sometimes. By no means is it a daily driver, more of an weekend warrior. But, even with a normal intake (Skunk 2 is normal for me ) it's still hard to drive. So, unless you want your ride to be extremly hard to drive, i wouldn't get the ITB's. But, if you plan on road racing or draggin it every weekend, and not takin it out on the road, go for it.

[expierence97]

Originally Posted by tegdude227

i am stuck on the idea i just want itb's on my car it will be a daily driven car but my biggest question is how hard are they to tune and wat am i going to need besides the itb's in order for my car to idel normal and just to run like it is supposed to ? any info is helpful thanx

If this is your daily driver and all you have is bolt-ons, you won't really benefit from them, nor will it be worth it. Don't do it, unless you have really done a lot more to your engine and have the time and money to be installing/tuning the ITB's.

[tegdude227]

im just asking right now for funture refrenses but i am going to be building my motor for drag, street, auto cross, and it will be my daily driver to ive just seen it done on a couple daily driven cars and i thought that it would been a cool and different way to go besides IM. and no i dont want ITB's just to say i do i just thought that it would be a cool project to work on and to see if it would really work. but wat other things am i going to need besides the ITB's themselfs ? any info is useful
thanx

[expierence97]

Originally Posted by tegdude227

im just asking right now for funture refrenses but i am going to be building my motor for drag, street, auto cross, and it will be my daily driver to ive just seen it done on a couple daily driven cars and i thought that it would been a cool and different way to go besides IM. and no i dont want ITB's just to say i do i just thought that it would be a cool project to work on and to see if it would really work. but wat other things am i going to need besides the ITB's themselfs ? any info is useful
thanx

http://twminduction.com/faq/faq-FR.html

My advice would be to read around on there, find out the set-ups of people that have ITB's, and then start saving.

[HondaVTEC93]

yeah dont get them if ur a daily driver.

[crx2point0]

Disregard what I am saying if I am wrong but didn’t the old jdm ae86 come with itbs stock and a big piece of foam on the ends to keep out the dirt.

[kommon_sense]

Originally Posted by acuragsr18

^^^^ juding from his sig it looks like he has simple bolt ons




as much as i LOVE ITBs they are not meant for daily driving. im sure with enough money and tunning it could be done, no doubt. ITBs are meant for heavily modified race engines that are built to run hard. the thing is with ITBs, u are either on them or ure not. there really isnt an in between. the whole point of them is to allow maximum air flow at wide open throttle. not to menchin ur engine will be sucking all the dirt and debris that are under ur hood on a daily basis. if u were to run them on a daily driver u will need an engine management system that will let u tune them out to their entirety. the air/fuel ratio must be perfect, especially when at idle and wide open throttle. ITBs are most commonly used on cars that have high lift cams(stage 2 or higher), high compression, stout head/block, at minimum a header with a 2.5" collector, high flow cat if not test pipe, full exhaust, upgraded fuel system to support all the air ripping through ur engine. there is a lot more to ITBs than one might think. its not a mod that u just slap on ur ride and go, and considering if its ur daily driver.

It really depends. Most people have probably seen the hondatuning article where bambooseven installed some itb's on a d16y8 and made substantial gains. while I would agree that ITB's are probably not a good choice for a daily driver, they are not limited to race engines. However you really do need some sort of internal mods such as a cam and some headwork to really make use of them.

Also on a street setup, there are a lot of places that sell filters for the ITB's which IMO are a must on the streets.

Once I get a second car, I will probably dig the cbr929 itb's out of my garage and have at it.

[subaruwrx18]

Originally Posted by kommon_sense

It really depends. Most people have probably seen the hondatuning article where bambooseven installed some itb's on a d16y8 and made substantial gains. while I would agree that ITB's are probably not a good choice for a daily driver, they are not limited to race engines. However you really do need some sort of internal mods such as a cam and some headwork to really make use of them.

Also on a street setup, there are a lot of places that sell filters for the ITB's which IMO are a must on the streets.

Once I get a second car, I will probably dig the cbr929 itb's out of my garage and have at it.

wut im basically trying to stress is that to get MOST out of the all the money u are going to spend on ITBs u will need internals that can support the use of all thats massive airflow. and putting filters on ITBs will help but we all know filters are restrictive. my buddy who built my old teg has TWMs on his rex and he said that ure either on it or not. just think of the dynamics...the throttle bodies will not idle or run as smoothly when compared to an intake manifold with runners and an intake on it. ITBs are either slow or go...not to say they cant be put on a DD. it was just require good tuning and a stout engine. ITBs arent a simple bolt on that u just slap on ur engine when ure scratchin for more power. but good luck with those ITBs if u go for that project, ud better post some pix/video or u are and !!!!

[danmakG60]

All the Toda ITB's are is repackaged Toyota Corolla units. You'll need a stand alone to tune them and make them run properly. Also injectors, and a adjustable fuel pressure regulator. Me and my two brothers run them on our cars, and they are daily driven, but be forewarned: Your mileage will go downhill and starting in cold weather will be grumpier. We just spent $150 and change on some K&N filters for a set of 40mm units today, went to the local motorcycle/atv shop, some guy ordered them for a Gsxr and never picked them up, thus the $20 discount. Expect to spend some change on the whole deal.

[kRazyTeg]

itb's= not worth the trouble for the gains you get IMO, i know that if you have a kick ass n/a engine, then it could benefit

[kommon_sense]

Originally Posted by acuragsr18

wut im basically trying to stress is that to get MOST out of the all the money u are going to spend on ITBs u will need internals that can support the use of all thats massive airflow.

This can be said for just about any mod However the important thing here is throttle body size... A lot of people go for the big hayabusa's with their massive 44mm openings... Thats just too big. For a little d-series 38-40mm is the best bet. However you are right, you really should have a cam, headwork and preferably high compression.

and putting filters on ITBs will help but we all know filters are restrictive. my buddy who built my old teg has TWMs on his rex and he said that ure either on it or not. just think of the dynamics...the throttle bodies will not idle or run as smoothly when compared to an intake manifold with runners and an intake on it. ITBs are either slow or go...not to say they cant be put on a DD. it was just require good tuning and a stout engine. ITBs arent a simple bolt on that u just slap on ur engine when ure scratchin for more power. but good luck with those ITBs if u go for that project, ud better post some pix/video or u are and !!!!

Agreed. You don't just slap on itb's like they are a dc-sports header. They require a fair amount of thought/effort if you are going the DIY route and even more tuning. However keep in mind that a number of cars came with ITB's from the factory. There were a number of BMW's with them, so they can be daily driver friendly when done right.