Grassroots-motorsports $2008 Civic Si - $2009 Starts page 4
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Re: Grassroots-motorsports $2008 Civic Si Build 56K no way
Originally Posted by RotaryGeek
Calm your dumb *** down and reread what i wrote. I said don't be one of those **** who tears up hard to find cars. If your doing something good with it, then more power too you, but don't jump down my throat about it when you didn't read it right retard.
0.0 BAR
Joined: Feb 2008
Posts: 15
Re: Grassroots-motorsports $2008 Civic Si Build 56K no way
Originally Posted by TorganFM
I'd hog the intake side more than the exhaust side personally, then smooth the exhaust out but leave the intake side scuffed up.
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Re: Grassroots-motorsports $2008 Civic Si Build 56K no way
From what I understand if you go nuts on the intake side (which i haven't touched) you kill velocity and actually create lag.. But if I hog the crap outta the exhaust side it will help to spool quicker.
any advice?
any advice?
3.0 BAR
Joined: Mar 2004
Posts: 1,729
Re: Grassroots-motorsports $2008 Civic Si Build 56K no way
Originally Posted by Lowerit
From what I understand if you go nuts on the intake side (which i haven't touched) you kill velocity and actually create lag.. But if I hog the crap outta the exhaust side it will help to spool quicker.
any advice?
any advice?
I would just leave it stock if it was me, people have made more power than you want to/will with stock heads.
1.5 BAR
Joined: May 2005
Posts: 840
Re: Grassroots-motorsports $2008 Civic Si Build 56K no way
Might of went a little crazy with the bur. 
Just port out to the carbon marks form the gasket, and don't touch the port floors other than to smooth out casting flash. Most the gains will be in the valve throat, bowl, and short side radius. The ports themselves are plenty big.
Just port out to the carbon marks form the gasket, and don't touch the port floors other than to smooth out casting flash. Most the gains will be in the valve throat, bowl, and short side radius. The ports themselves are plenty big.
0.5 BAR
Joined: Dec 2004
Posts: 165
Re: Grassroots-motorsports $2008 Civic Si Build 56K no way
depending on how heavy your car is going to be in the end and how you can drive it, a 14b with slicks running around 15 psi and tuned can get you to the 12's.
i personally think the tb25 will hurt you though.
looking good, except i think you may have went a bit crazy with that exhaust port myself.
keep it up!
i personally think the tb25 will hurt you though.
looking good, except i think you may have went a bit crazy with that exhaust port myself.
keep it up!
