butterflies, yes or no

[arcadiacb7]

ok i'm putting a h23 IM on my fiance's 92 accord ex with auto trans. Just wondering if you guys think I should hollow out the butterflys or leave them in and functional? I guess i'll do a poll on this. I need quick replys due to i'm doing this in about 1/2 an hour.

[sulimed]

the low end power band will suck ball.

[zigg_1311]

i heard if you take the butterflys then you low range power will suck, but you top end will benefit, dont know how much or if it is worth taking a loss in low end, but from what it sounds like our cars do good low end, but the greatest top end, so maybe will be beneficial, try it drive and see what you think

[fast93accord]

It is not as easy as you think to get rid of the butterflies. I took the butterly mechanism off mine and hollowed it out. I hollowed out the 8 holes into 1 big hole on the upper and mechanism, and as for my lower i turned the 8 passages into 4 very large tapered passages. Maybe on an all motor stock engine it may suck, but on my motor it feels awesome. As for throttle response below 4000 rpm, it takes off and revs fast with 0psi. But i kid you not, to do what i did took a long time and probably 80+hours. Gridinding didnt work for removing all the crap in there. I resorted to drilling holes and hitting it with a hammer to break the insides out. Grinding all that metel was making no progress. I could of easily hit it wrong and cracked the whole manifold i'm sure... Oh, i also had to tap and plug the holes were the butterfly flapper rod used to go. Looking at my manifold it looks stock... LOL And i used an H23 upper that throttlebody on an F22a6 lower. Works wonders...