im about to buy a skunk2 intake manifold with throttle body.. not only will it help with hp. but it also looks real clean and will clean up my engine bay a little bit. the throttle body is what im worried about. I get to pick the size of the bore. 68mm/70mm72mm or 74mm. is 74 too much? it might be overkill. and will it mess up my air to fuel ratio.. or should i go for it?

thanks again for your help

 

Unless your boosted, i wouldnt go higher than a 68mm. Just consider that a d series is a 56mm stock.


Modified by yoffer at 7:51 PM 3/27/2008

 

I have a b16 i think stock size is 68mm

 

No, its 58mm

*Edited my last post*

 

my bad dude i thought scince you said>>> Just consider that a d series is a 56mm stock. i thought you might have thought i had a d series.. i didnt know that a B sieries and a d series had the same stock mm

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by ShinkospeedEM1 &raquo;</TD></TR><TR><TD CLASS="quote">my bad dude i thought scince you said&gt;&gt;&gt; Just consider that a d series is a 56mm stock. i thought you might have thought i had a d series.. i didnt know that a B sieries and a d series had the same stock mm
</TD></TR></TABLE>
They dont, d series is 56mm, b16 is 58mm.

 

ight thanks man

 

soo 72 would be safe...no boost all motor..or go with 74

 

Why? Anything over 68mm on a n/a is overkill.

 

that works thats all i needed to know.. thanks again..

 

You can get a 72mm or whatever, do what you please, but your going to kill your top end. The only thing your gaining from a 70+ tb is volume, thats it. Your gaining volume, but losing velocity. Velocity is what gives you that high end hp. Like i said before, unless your boosted, dont go over 68mm.


Modified by yoffer at 8:31 PM 3/27/2008

 

noo i didnt want to get anything that would be overkill.. i wasent pushing for the 72mm.. im glad you jumped in and gave me the info.. im going to go with the 68mm.. not that it matters much but.. the password jdm cf power chamber intake/skunk2 manifold and 68mm throttle bodie should be an alright set up..

 

Sounds good, how does your exhaust setup look like?
Your not going to benefit much from the intake setup if your motor cant expell the exhaust gasses efficiently.

 

spoon 4-2-1 headers and a full greddy evo exhaust.. wll i keep the rest of the greddy and switch to a spoon axle back. not that it matters..

 

Well, youll net some pretty decent gains from the intake bolt-ons.
You might want to look into bypassing the fitv and the iacv coolant lines to keep your air intake temps down.

 

lol alredy did i love that trick.. im not sure but ive herd a 10hp gain from that....even if it doesnt gain that much its alot better than sucking hot air into the motor..

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by ShinkospeedEM1 &raquo;</TD></TR><TR><TD CLASS="quote">lol alredy did i love that trick.. im not sure but ive herd a 10hp gain from that....even if it doesnt gain that much its alot better than sucking hot air into the motor..</TD></TR></TABLE>
Gas mileage and horse power FTW

 

i also just ot my jun cams and toda cam gears. but i might save them until i change my stock vaulve train

 

i have a skunk2 intake manifold and i have a blox 70mm tb that doesnt affect my top end i just need to get retuned i have a b16a2