what size itb's should i use and where can i find them, im going to be doing my own itb set-up and posting before/after dyno results, but i need help to find out which size itb's i should go with......ive seen people usuing 40's but dont those seems to small for an R? Thanks for your help guy's.

heres what my set-up will look like when all said and done....

2.5" catback
carsound high flow
hytech or smsp header
homemade itb's
buddy club spec 3 cams
hondata
255 walbro fuel pump
"what size injectors"?????
tuning

my goal is to make between 200-220whp without toching the motor "besides cams", this is on a 98 jdm type r

thanks for all the info guys, i just need help with which size throttle bodys will work best for my application and power goals

 

i am useing 40mm on my high-comp. 2.0 liter setup. i should probably go bigger. the 40mm offered a noticably (after tuning with a wideband) difference.

 

bump

 

There is no bumping in the ITR forum. And looking at your setup you need to do more research. Those cams require higher compression to optimize them. And if you are just sticking on the cams and itb's ur compression is still gonna be 11.1:1 like stock jdm R. So I think your hp goals along with your unwillingness to open the motor are highly unrealistic and most likely you are going to spend a heap of moeny and be very disappointed.

 

i read in a thread a while ago that the buddy club cams work awsome for stock itr's, even had dyno sheets to prove

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by digital sol &raquo;</TD></TR><TR><TD CLASS="quote">i read in a thread a while ago that the buddy club cams work awsome for stock itr's, even had dyno sheets to prove</TD></TR></TABLE> Yes they probably do but they might have been stage 1 cams.

 

yea, but i dont remember the stage that was posted but i thought they wre like spec 3, there was an entire 10 page long thread about them, and i believe they go down in stages to higher quality, like stage 3 is actually firt stage, stage 1 is actually 3rd stage ect ect

im probably wrong but you get the idea

 

who is digital sol and WHY is he taliking

 

ive got more post then you, *slap bitch*

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by jdmspoonitr &raquo;</TD></TR><TR><TD CLASS="quote">There is no bumping in the ITR forum. And looking at your setup you need to do more research. Those cams require higher compression to optimize them. And if you are just sticking on the cams and itb's ur compression is still gonna be 11.1:1 like stock jdm R. So I think your hp goals along with your unwillingness to open the motor are highly unrealistic and most likely you are going to spend a heap of moeny and be very disappointed.</TD></TR></TABLE>

Taken from omnipowerusa.com

Omni-Power is proud to sell Buddy Club Racing Spec. camshafts. Currently we have the ALL NEW Spec. III+ in stock and ready for immediate delivery! This cam creates an ideal power band, with substantial power gains from idle all the way up to red line. These cams are easy to tune and have much better throttle response than OEM cams. Definitely a versatile cam, accomodating compression ratios from 10.0:1 all the way to 13+. After testing 14 sets of different cams in our project car, we found this cam to be the most impressive...Even though it did not make the most peak Hp, it had the best over all powerband and response! At the Dyno we saw gains of 8+ Wheel Horsepower @ 4000 RPM and 10+ Wheel Horsepower @ 8200 rpm. OVER Civic Type R cams. Peak torque also increased from 2-10 ft/lbs across the entire rev range. This cam is ideal for stock bottom end ls/crv VTEC's reving to 8,000-8500 . Tuning & technical advice is also available from us after you have purchased these camshafts.

 

440cc injectors should be sufficient, but the 255 pump will probably be overkill. A 190lph high flow pump would work fine.

Couple of comments.
1) I would tend to agree about the compression ratio - the long duration cams will work best with higher static compression to compensate for the increased overlap. Not saying that they won't be better than stock cams, but there will certainly be room for improvement.

2) Filtering the ITBs usually presents a problem. You can run socks or run a custom airbox. Both can have an impact on the performance benefit provided by the ITBs. The other issue with just running socks is intake temps - since you are pulling hot air from under the hood. IMHO, if the intended use is short duration (autocross or drag) they tend to work okay. Extended use you really need to think about a larger volume airbox that can pull cold air, which can be tough given physical space limitations back to the firewall.

Good luck!

 

thanks for the info, my car already has a 255 fuel pump sense it was turbo at 1 point with a diff motor but i have hondata so its not a problem

i know higher compression will open more doors and give me more power but at this time the list provided is the mod list im trying to inquire, after thats done i will work on increasing compression and building the motor

any info on which size tb's will work best?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by digital sol &raquo;</TD></TR><TR><TD CLASS="quote">thanks for the info, my car already has a 255 fuel pump sense it was turbo at 1 point with a diff motor but i have hondata so its not a problem

i know higher compression will open more doors and give me more power but at this time the list provided is the mod list im trying to inquire, after thats done i will work on increasing compression and building the motor

any info on which size tb's will work best?</TD></TR></TABLE>

40's are a little small. I would shoot for something around 50.

 

where would be a good place to go about finding these throttle bodys for good prices, new or used

i see people pay $200 for some, then i see others paying $50 for the same one's, where you guys buying your toys

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by digital sol &raquo;</TD></TR><TR><TD CLASS="quote">where would be a good place to go about finding these throttle bodys for good prices, new or used

i see people pay $200 for some, then i see others paying $50 for the same one's, where you guys buying your toys </TD></TR></TABLE>

Check the NA forum. There are quite a few different vendors that have good stuff.

 

80 mils per runner

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by v-attack &raquo;</TD></TR><TR><TD CLASS="quote">80 mils per runner </TD></TR></TABLE>

Ummmm.... not sure there would be enough room between runners. On a ported PR3 casting the width of the intake port is about 55mm.

 

maybe i should have added the hint hint 80 mils a little much yo

 

yea i searched through the vendors, already know who im buying my vacum box and injectors through HT but didnt see any vendors that sell throttle body's for homemade itb projects

 

122 mm

 

dont b gay

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by digital sol &raquo;</TD></TR><TR><TD CLASS="quote">dont b gay</TD></TR></TABLE>


don't ask stupid questions that can be answered with the search function!

 

i already searched, spent an hour going through 91 results found, didnt find my answer

so dont ***** my thread with your ignorance

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by digital sol &raquo;</TD></TR><TR><TD CLASS="quote">i already searched, spent an hour going through 91 results found, didnt find my answer

so dont ***** my thread with your ignorance</TD></TR></TABLE>

Your thread was fine... maybe better suited in the NA forum, but it's probably the most tech related thread this forum has seen in a while.

Check with the guys in the NA forum - many of them have posted about home made ITB kits using parts from various sources. The key is finding, or making, a decent manifold and linkage.... well and of course tuning it.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by digital sol &raquo;</TD></TR><TR><TD CLASS="quote">i already searched, spent an hour going through 91 results found, didnt find my answer

so dont ***** my thread with your ignorance</TD></TR></TABLE>


i'm not ignorant.....cause i know what is needed.....