trying to figure out how large of a throttle body i can use? i have a jdm d15b. i am looking ot purchase a skunk2 pro series intake with a 70mm throttle body. is 70mm way to big or will that be okay???

 

You can run whatever size you'd like at the cost of throttle response.

What do you expect to gain from this?

 

not sure what you are saying. naturally i am looking for better flow all around. how much will i actually gain with the intake and throttle body?

 

i just purchased a stage 1 exedy clutch kit w/ fidanza 7lb flywheel. i also just got a 91 crx si tranny w/ low miles. i would like to put an intake as well as a header in as well. how much do you think i will gain with all of this? i am not sure about the throttle body to be honest. i know my buddy has a gsr throttle body on his sohc and he is pretty satisfied

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by shosek03 &raquo;</TD></TR><TR><TD CLASS="quote">not sure what you are saying. naturally i am looking for better flow all around. how much will i actually gain with the intake and throttle body?</TD></TR></TABLE>

Somewhere around 0-0.1hp on a stock motor. There's really no gain. Ds don't respond to bolt ons

 

are you serious? that's pathetic. you have any idea why i am restricted to im? anyhow like i said i would think i would have to be able to get a decent gain with an intake manifod, throttle body, and header.

 

You're restricted because you're a new member.

You may have a difference in the "butt dyno" because with the intake/header it'll be louder and louder feels faster.

But in reality the numbers really don't do anything impressive on a d series with boltons. You might be able to pick up more than what I said in the HP dept, but honestly it isn't much. There's a few threads I've seen in the past that had dyno graphs to back up the claims, wish I had saved them.

I'm not saying don't do it, by all means go for it, but don't expect a night and day difference in power.

 

1990 ef9 throttle body......... i have a jdm d15b.

*rolls eyes*

Is it just me or does it seem an exorbitant amount of people on these forums call any 88-91 civic a EF9.

 

do not waste your money on that. 70mm is WAY too big for a stock motor.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by .Grimace &raquo;</TD></TR><TR><TD CLASS="quote">do not waste your money on that. 70mm is WAY too big for a stock motor.</TD></TR></TABLE>

X2 for that...
Save your cash...Stick with stock I/M and TB for now. You can run a stage-1 cam upgrade for less then half of what it would cost. put the header and the intake on first. Let that engine breath a little better. Remember it's not so much the diameter of the TB but how it mates up with the I/M.