Chad00ws6

I need to know if anyone has dyno'd a larger CID (stroker) motor with a factory throttle body and with a larger aftermarket or ported one? <img border="0" title="" alt="[Confused]" src="images/icons/confused.gif" />

How much power is there to be gained and what options are out there? Inquiring minds want to know.

SStrokerAce

iTrader: (2)

Can't quote any numbers here but:

the stock 700cfm TB is not enough for a 400rwhp car let alone one pushing 500rwhp.

For example a 950cfm carb on a 580hp engine is worth 10-15hp over a 750cfm carb.

So a good 900cfm ported throttle body will get worth about that, and since the f-body also benefits from the throttle stop mod it could be a little more.

One like this flows 900cfm: <img src="http://www.lswon.com/upload/files/FB-Blue-1.jpg" alt=" - " />

Bret

SStrokerAce

iTrader: (2)

</font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif">Originally posted by Chad00ws6:
<strong> Thanks for the reply Bret so the stocker is only good for about 700cfm? <img border="0" title="" alt="[Confused]" src="images/icons/confused.gif" />

Porting gets another 200cfm out of one <img border="0" title="" alt="[Eek!]" src="gr_eek2.gif" /> Leaves alot to be desired from the stocker huh.

Did I read somewhere else that the opening in the intake is also a problem because it matches the opening size on the Throttle body? i think that I need more air to help my motor which is saying GIVE ME MORE <img border="0" title="" alt="[Big Grin]" src="gr_grin.gif" /> </strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">Yeah the intake opening is only a little over 75.5mm. So a ported stocker is the way to go.

Bret

Chad00ws6

Thanks for the reply Bret so the stocker is only good for about 700cfm? <img border="0" title="" alt="[Confused]" src="images/icons/confused.gif" />

Porting gets another 200cfm out of one <img border="0" title="" alt="[Eek!]" src="gr_eek2.gif" /> Leaves alot to be desired from the stocker huh.

Did I read somewhere else that the opening in the intake is also a problem because it matches the opening size on the Throttle body? i think that I need more air to help my motor which is saying GIVE ME MORE <img border="0" title="" alt="[Big Grin]" src="gr_grin.gif" />

Chad00ws6

Bret as o now I am looking at one of your TB's but I would really like to hear from someone that has before and after numbers with any different set up other than stock.

Chad D

Jammer

iTrader: (1)

Whn the throttle body butterfly is in the full open position should it be completely "flat" or perpindicular with the bosy or slightly tilted downword? Bret?

kent

Around 89 degrees and so many OHMS whatever for sensors on the throttle body. This is a little out of my league, but this is my understanding. Cheers.