I was getting anxious and the results from the flow testing are taking too long.

YOU think they're taking too long?

You don't have a pallet full of heads in your storage unit and a list of customers waiting for information. I REALLY think they're taking too long, but scheduling seems to be a problem throughout the entire performance machine shop industry.

[This message has been edited by Will (edited 06-09-2006).]

quote Originally posted by Will: but scheduling seems to be a problem throughout the entire performance machine shop industry

...tell me about it...

FLOW NUMBERS

I had two heads flowed.

code:

---

Lift      #1 Int    #2 Int
0.100     58.7      58.0
0.200     110.5     110.8
0.300     135.7     138.6
0.400     145.0     142.1
0.500     149.5     151.0
0.600     151.0     152.5

Lift      #1 Exh    #2 Exh
0.100     56.9      58.4
0.200     101.9     100.2
0.300     140.0     138.2
0.400     149.0     152.1
0.500     152.2     153.6
0.600     153.7     153.6

---

I find this data very interesting. While the peak numbers are less than I was hoping, the mid-lift numbers are marvelous.
These heads waste no time getting a big fraction of their flow going once the valve lifts. I think it's obvious that's what BPE was going for when they did this port work.
It's also very interesting that the exhaust flow is approximately the same as intake flow. This indicates that the engines on which these heads were used had very high compression.

This will be better than stock heads on a built engine, but they will REALLY shine when used with a blower or other form of forced induction.

A multi-angle valve job would probably provide significant improvement. I didn't have the scratch or time to have one done on this pair before getting the measurements done. The seats in these heads were last run in race engines over a decade ago, so they could benefit from cleanup work.

For those ready to buy, the best way would be via paypal at the email address listed in my profile.

Does anyone have flow data on stock heads for a comparison? Just curious. Those look like awesome heads for a 3.4 buildup.

I think there might be some data on stock head flow @ trueleo.com

I don't know anything about flow but does the minute difference in flow equal to much? Does the "gain" justify the cost?

These numbers are from Oreif who had a stock head and a ported head flowed to see the difference. The "stock" head may have had a cleanup, I've heard both about this data.

code:

---

Intake
Lift    Falconer #1 Falconer #2 Ported  Stock
0.100   58.7        58.0
0.200   110.5       110.8       98.1    96.1
0.300   135.7       138.6       139.0   129.0
0.400   145.0       142.1       158.6   148.6
0.500   149.5       151.0       165.7   155.7
0.600   151.0       152.5       166.5   156.5
				
Exhaust
Lift				
0.100   56.9        58.4		
0.200   101.9       100.2       88.0    82.0
0.300   140.0       138.2       117.3   107.3
0.400   149.0       152.1       131.3   121.3
0.500   152.2       153.6       140.2   130.2
0.600   153.7       153.6       145.2   135.2

---

The Falconer heads beat these at low lift and at every exhaust lift point. The Falconer heads only give ground at the highest intake lift.

As I said before, the valve job on the Falconer heads was raced on 10 or 15 years ago. A multi-angle valve job should show noticeable improvement at all lift points.

Ported outflowed the falconer heads on the intake side, but not on the exhaust side. Does this mean the vane does actually do something? Looks like it to me.
This helps. https://www.fiero.nl/forum/Forum2/HTML/060677.html

[This message has been edited by goatnipples2002 (edited 06-09-2006).]

quote Originally posted by goatnipples2002: Ported outflowed the falconer heads on the intake side, but not on the exhaust side. Does this mean the vane does actually do something? Looks like it to me. This helps. https://www.fiero.nl/forum/Forum2/HTML/060677.html

Only at the top three lift points. The Falconer heads were better at low lift.

After discussing with Shaun, I'm wondering if I ought to get a valve job to better show what can be expected of these heads. It would probably improve the 0.100 numbers significantly.

[This message has been edited by Will (edited 06-09-2006).]

Sorry, Will.
Didn't mean to open that can of worms.

I do have an interest in these, also. Haven't made up my mind yet, though.

I appreciate your interest and await your decision.

Will: P.M. sent

------------------
85 GT 3.4
Auto 3.08
14.9 @ 90 1.9 60"

Valve spring specs:

Free length - 2.400
160# at 1.680 installed height
300# at 0.500 lift

The outer spring by itself is:
120# at 1.680 installed height
(calculated) 205# at 0.500 lift

PM to you will

woot woot... got my super cool heads from super cool Will

------------------

By:Custom2M4
in process-12" front brakes using '88 calipers and '88 vented brakes in rear
hybird rear suspension
3400 turbo in the works

What are the chances of passing smog with these heads? I'm betting I'd be screwed...

Why do you think so? I don't think they'd make you less likely to pass.

What tests do you have to pass?

The EGR passages are still in place (the Fiero manifold doesn't use them that I know of, but they're still there).

[This message has been edited by Will (edited 06-28-2006).]

i bought a set of heads and valves off of will a while back, well i got them back from the machine shop today and thought id post some pics up

Falconer race heads-ported
Ti valves w/ 5 angle valve job
crane springs, retainers, locks
intake + exhaust seals
1.6 summit full roller rockers

------------------

By:Custom2M4
in process-12" front brakes using '88 calipers and '88 vented brakes in rear
hybird rear suspension
3400 turbo in the works

Wow, I think my exhaut ports were opened quite a bit more:

https://www.fiero.nl/forum/Forum2/HTML/075502.html

and before anyone asks, we are waiting for a reply to the demand letter we sent the mechanic in the second week of September and if none is given, a lawsuit will follow... They have 30 days to reply to a demand letter.

[This message has been edited by lou_dias (edited 10-06-2006).]