Raising power band with AFR 180's?

**MeanTA** · 05-28-2013, 12:41 PM

As some may know. Im buying Call911's ported AFR 180's. My plan has been to build a FI 383 with D1SC or F1....

But i know Call911 was having issues with the heads choking his 383 at 6,000 rpm. My thought is to go with a 355 and bring my usable power band above 6,000 rpm.

I can return my compstar 3.75 for a 3.48. With no issues since it hasnt been worked on or used. I know i will lose some lower end power. And i am fine with that. But would like to spin higher. Any thought or input?

And sorry if question is dumb. Still on learning curve with boost

***Fastbird*** · 05-28-2013, 12:47 PM

I think that's a sound way to go. Well thought out, maximize what you're going to be working with.

Posted from my Rooted and ICS'd Rezound

**MeanTA** · 05-28-2013, 12:55 PM

Originally Posted by Fastbird

I think that's a sound way to go. Well thought out, maximize what you're going to be working with.

Posted from my Rooted and ICS'd Rezound

That is what i like to hear. I want to hit around the 650whp mark. But higher power band is more important for me. And I can make up for the power with the weight of my car. I don't really drag my car. But plan to do Texas mile when its done.

**MeanTA** · 05-28-2013, 03:04 PM

Now another big question. I got a victor E intake and nitrous outlet elbow. Should i upgrade to a mono blade. Or stick with the tpis 58mm i have? Or will it be pointless with the 300cfm the heads flow? Induction gets a little shady for me with boost.

**Featherburner** · 05-28-2013, 05:41 PM

Originally Posted by MeanTA

Now another big question. I got a victor E intake and nitrous outlet elbow. Should i upgrade to a mono blade. Or stick with the tpis 58mm i have? Or will it be pointless with the 300cfm the heads flow? Induction gets a little shady for me with boost.

I would get the heads flowed before I made any decisions.

**MeanTA** · 05-28-2013, 05:51 PM

Originally Posted by Featherburner

I would get the heads flowed before I made any decisions.

Fastbird and Call911 was there when they was flow benched. And they was hitting just shy of 300cfm. Beyond cleaning them. I have no plans to change anything.

The shop around me is less then consistent with the numbers they get. So i have no plans to flow test them again.

**Featherburner** · 05-28-2013, 06:29 PM

Originally Posted by MeanTA

Fastbird and Call911 was there when they was flow benched. And they was hitting just shy of 300cfm. Beyond cleaning them. I have no plans to change anything.

The shop around me is less then consistent with the numbers they get. So i have no plans to flow test them again.

I know what they said. I have a feeling the info was inaccurate with the flowbench.

**MeanTA** · 05-28-2013, 06:36 PM

Originally Posted by Featherburner

I know what they said. I have a feeling the info was inaccurate with the flowbench.

@Featherburner explain how so

***Fastbird*** · 05-28-2013, 06:37 PM

IIRC these heads were around 290 @ .600, but that was back in 2006 also. If that's inaccurate then my LE TFS heads that flowed 305 @ .600 are inaccurate too. And my head numbers are right in line with others.

**shownomercy** · 05-28-2013, 06:42 PM

I would wait before CALL911 dynos his car and then take it with a grain of salt as he made a few other changes.

I would run a 383 under them, its a lot easier to swap heads later on than to swap cranks.