For you guys that wanted to see the flow numbers on my AFR 195 100% CNC " Comp Package"



Here are whats on the car now. 180 Protoplines.Out of the box



Here is what AFR advertises.

 

cool was that out of the box or did u have them ported by someone

 

I'm pretty sure that I know where you had them flowed and I have never heard anything bad about their numbers. Sooooo your exhaust fricken rocks dude. Can't wait to see the track data to back um up.

 

The exhaust is friggin' amazing Rich...........you're at 82% E/I ratio at all your mid range points This is gonna be a hellofa step up!

FYI, mine peak a little bit better, but aren't near as impressive as yours in the mid range points.........money well spent!

 

Somners. Yes the heads are stock out of the box.

 

[QUOTE=Caboboy]The exhaust is friggin' amazing Rich...........you're at 82% E/I ratio at all your mid range points This is gonna be a hellofa step up!

FYI, mine peak a little bit better, but aren't near as impressive as yours in the mid range points.........money well spent!

Thanks Tim.. The intake is at Total engine airflow now. I hope to have it in the 280 range to..

 

That's about what I usually expect from AFR's "small" heads... IMO they are actually better in most cases than their larger heads; particularly on the exhaust side. With that I/E it would love a little forced induction. Turbo would love it, as would the bottle...
-Jeb

 

I just hope they work better then my 180 Protoplines. If not the NOS will be installed.

 

Can't wait to hear about your beast. It will definately be able to breathe.

Awsome flow numbers!!!!

 

Come on - You know they will be an excelant compliment to your motor.

 

I hope so.. I know with a bigger cam it would get better for sure.

 

get to work I want to hear performance numbers also

 

TTT added new graf

 

Just got the word that the intake will be here Saturday..

 

Am I reading this right ? The exhaust #'s are way better than advertised ?

Vic

 

of AFR195 Competition CNC ports. You should pick up about 30hp over those ProTopLines from the center of the midrange on up. You will feel it.

Those heads have respectable race-build potential. I'm surprised that relatively few people on this forum transform their C4's into race cars. If you ever swapped these heads to a roadrace corvette you could build a 393CID something like this:
Dart Little M block - 4.155" bore
3.625" crank with 6.125" rods
Super Victor 2925 intake and 950cfm carb
Mill and gasket for 13.5:1 compression with flattop piston
Solid Roller race cam like 268I/260E on a 116LSA straight up
Custom stepped-tube headers and exhaust of course

Will make a broad high powerband and be durable with maintenance. With your heads you would get a little over 700hp from 6500-8000RPM. Set up the springs to run up past 8500RPM at the end of the straights. The Brodix T1 M2's will beat these AFR's by about 30HP over a broader band, and prepared 18deg Brodix' will exceed 780HP and rev to 9000+RPM. SB2.2 on this type setup will go 850HP, but the single plane must be cut with a little more taper than the 2925. The runner length and taper of the single plane intake runners gives two equal power peaks in this type race engine setup, and this is what makes the powerband so broad and excellent.

Just a little fuel for your thoughts on the 219 cam.

 

I hope that I get a little more then 30Hp out of all the mods that I have done since my 11.8 pass. New mufflers Magnaflows, Ported SR Total engine air flow, Cold air intake,Heads, And the best part a shiftlight... I had no idea where my shiftpoints where before. Oh and drop the spare tire to.Then I will get a tube in my gutted cat...