Airwolf Results!!!

Tech Related Discussion

Postby banjo » Mon Mar 15, 2010 9:44 am

No offense taken, the converter will be addressed once I get the rest of the car sorted out. You have given me some good ideas on things to try.

Thanks, I will update with progress this weekend.
Bill Simpkins
Empty Pockets Racing
74 Chevy Nova
smallblock 406 with the original Airwolf heads.
1/8 6.15@110mph (11/11)
1/4 9.87@131 (02/13) On the rev limiter.
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Postby trmnatr » Mon Mar 15, 2010 1:01 pm

banjo wrote:No offense taken, the converter will be addressed once I get the rest of the car sorted out. You have given me some good ideas on things to try.

Thanks, I will update with progress this weekend.


I will send you some info in a PM that costs nothing for you to do, and you should see some NICE results
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Postby trmnatr » Mon Mar 15, 2010 1:25 pm

Bill,

About the headers, Are they Schoenfeld?

If so they may not be hurting you!!!! I know some guys that use them and have made more power the Hooker and $1,200.00 headers

The primary tubes are all not the same length and strange bends but for some reason the few that have went to then have went FASTER in drag racing

The price is amazing. I know a dyno shop that has tested them and they made more power the Stahl and Hooker Drag Race Headers

If they are not Schoenfeld and you are gonna change I suggest you look at them
http://www.schoenfeldheaders.com/

Headers for your car below,,,,

1 3/4" headers with 3" x 8" collector or 3 1/2" x 8" collector $229.95

1 3/4" to 1 7/8" headers with 3 1/2" x 9" collector $299.95

1 7/8" headers with 3 1/2" x 9" collectors $329.95

They can do certain custom options too. If your looking for budget headers (anybody here) that make good power and fit, Check them out

They tell you yes or no on angle plugs etc unlike some :roll:
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Postby banjo » Mon Mar 15, 2010 3:48 pm

Actually just got back from my buddies dyno, The headers were Schoenfeld 2 inch and I measured them, they were 30 inches. So they were pretty close to what this engine would need. I really wish I was able to get my headers on there to see what the differance would have been.

My current headers are hooker super comps 1 7/8 with 29 inch primaries.
Bill Simpkins
Empty Pockets Racing
74 Chevy Nova
smallblock 406 with the original Airwolf heads.
1/8 6.15@110mph (11/11)
1/4 9.87@131 (02/13) On the rev limiter.
Fourtenposi@yahoo.com
banjo
 
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Postby trmnatr » Mon Mar 15, 2010 6:07 pm

banjo wrote:Actually just got back from my buddies dyno, The headers were Schoenfeld 2 inch and I measured them, they were 30 inches. So they were pretty close to what this engine would need. I really wish I was able to get my headers on there to see what the differance would have been.

My current headers are hooker super comps 1 7/8 with 29 inch primaries.


on a 1974 bumpers hang out, did you make it look like a 1970?

All you do is drill them bumper shocks and compress the bumper in without the filler and weld the bumper struts in and it looks like a 1970 :D

Some prefer the 1974 look, some prefer the 1970 look

I prefer the 1970 and my buddy did too but he could only get a 1974, so now it looks like a 1970 sort of :lol:
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Postby hb_350 » Mon Mar 15, 2010 9:26 pm

Hi Bill, I am building a very similar combo to yours, just wondering if you know the actual compression ratio of your engine and what type of fuel you use. Cheers, Grant.
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Postby banjo » Mon Mar 15, 2010 9:33 pm

It is 13.8 and I run vp c12.

I like the 74 look, not as many of those running around.
Bill Simpkins
Empty Pockets Racing
74 Chevy Nova
smallblock 406 with the original Airwolf heads.
1/8 6.15@110mph (11/11)
1/4 9.87@131 (02/13) On the rev limiter.
Fourtenposi@yahoo.com
banjo
 
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Postby hb_350 » Mon Mar 15, 2010 9:45 pm

A question for trmnatr, I am building a very similar engine to Bill's but running flat tops and slightly bigger cam. How do you rate this one.

Crane R-268
Part no. 118871
Duration 268in and 272ex @.050
Advertised duration 300in and 304ex
.672 lift in and ex (1.6 rockers)
LSA 107deg
Timing @ .050" Intake - open 30' close 58'
Exhaust - open 66' close 26'

Please let me know.
Cheers, Grant.
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Postby hb_350 » Mon Mar 15, 2010 9:47 pm

banjo wrote:It is 13.8 and I run vp c12.

Thanks for that Bill, good luck with your combination. Cheers, Grant.
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Postby trmnatr » Mon Mar 15, 2010 11:04 pm

hb_350 wrote:A question for trmnatr, I am building a very similar engine to Bill's but running flat tops and slightly bigger cam. How do you rate this one.

Crane R-268
Part no. 118871
Duration 268in and 272ex @.050
Advertised duration 300in and 304ex
.672 lift in and ex (1.6 rockers)
LSA 107deg
Timing @ .050" Intake - open 30' close 58'
Exhaust - open 66' close 26'

Please let me know.
Cheers, Grant.


What heads? Compression? Car? Race weight? Intake? Carb? Trans? Converter? Transbrake? Rear gear? Tire size? Desired RPM?

That camshaft is a pretty fast lobe on the opening side, not as aggressive as the ones i posted but they are fast however they are very long closing ramps

I have ran those .420" lobes at 7500rpm with 650 open and 550 spring rate on steel valves, I wouldnt go much under that, Need 250-260 seat with good pushrods (3/8" .080" wall Jesel or Manton is what I would use or the heavy heavy wall 3/8" one piece)

Here are the specs on your lobe
300/304 @.020"
268/272 @.050"
187/191 @.200"
.420"/.420" lobe lift

These are a .020" hot lash, These lobes can go as tight as .012" hot lash

Depending on your engine, If you already have this camshaft I would lash it .020"/.012" to .016" in my opinion

I will post a link to this camshaft lobe with .012"/.012" lash for 5 years on the street with I dont know how many miles, The camshaft on the left is the Crane .420" lobes (260/268 @.050")
Image

Here are the two more aggressive Crane Cams we have (the crazy one I do not have a photo of)

This camshaft is a .4467"/.4467" lobe
308/314 @.020"
278/284 @.050"
200/206 @.200"
Image

This Camshaft is a .4467"/.420" lobe
308/316 @.020"
278/284 @.050"
200/202 @.200"
Image
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Postby Dr J's Performance » Mon Mar 15, 2010 11:31 pm

Butch do you ever sleep :lol: or are you always up dreaming about camshafts :idea:
Bryce Mulvey
Dr J's Performance
"The Home of Innovative Air Flow technology"
(714) 943-3404
www.j-performance.com
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Postby trmnatr » Mon Mar 15, 2010 11:41 pm

Dr J's Performance wrote:Butch do you ever sleep :lol: or are you always up dreaming about camshafts :idea:


2 to 4 hours MAX from my back being messed up

Im use to it now

PS: Bryce found out if you want a big cam, ask me for a little one lol :lol:

I still think he would like it :D :D :D
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Postby trmnatr » Mon Mar 15, 2010 11:44 pm

Dr J's Performance wrote:Butch do you ever sleep :lol: or are you always up dreaming about camshafts :idea:


From testing we have about 15 cams, no $hit either :lol:
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Postby trmnatr » Mon Mar 15, 2010 11:56 pm

Bryce we have a few cams

cams we have tested with :lol:
1) super stock cam from a while ago before head porting, 256/262 @.050" (dont have cam card and not in computer, Would have to look at grind number tomorrow)

2) 307/317 @.020" 278/284 @.050" 201/197 @.200" .684"/.660" with 1.5's 106 lobe center

3) 292/300 @.020" 260/268 @.050" 180/187 @.200" .630"/.630" with 1.5's 110 lobe center

3) 307/313 @.020" 278/284 @.050" 198/204 @.200" .746"/.746" with 1.5's 106 lobe center (we have 2 of these on 4/7 swap)

4) 308/316 @.020" 278/284 @.050" 200/202 @.200" .670"/.630" with 1.5's 106 lobe center (we have two of these on 4/7 swaps)

5) Same cam above but on 4/7 & 2/3 firing order swap (we have 2 of these)

6) 308/314 @.020" 278/284 @.050" 200/206 @.200" .804"/.759" with 1.8/1.7's but will work with 1.4's 106 lobe center

Thats those, We have a bucket full of billet roller cams with all different durations from over the years. We have 2 Lunati's right now that are ours. 3 other cams that we are working with this spring brand new.

Too much $hit. Thats why I said your dad really needed a big cam :lol: :lol:
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Postby hb_350 » Tue Mar 16, 2010 1:44 am

trmnatr wrote:
hb_350 wrote:A question for trmnatr, I am building a very similar engine to Bill's but running flat tops and slightly bigger cam. How do you rate this one.

Crane R-268
Part no. 118871
Duration 268in and 272ex @.050
Advertised duration 300in and 304ex
.672 lift in and ex (1.6 rockers)
LSA 107deg
Timing @ .050" Intake - open 30' close 58'
Exhaust - open 66' close 26'

Please let me know.
Cheers, Grant.


What heads? Compression? Car? Race weight? Intake? Carb? Trans? Converter? Transbrake? Rear gear? Tire size? Desired RPM?

Engine - Dart 400 with 350 mains, 4.125 bore, 3.75 stroke, 5.7 rods, Ross flat tops
Heads - AirWolf 220
Valve Springs - Isky Toolroom 9975, 245@1.970” installed (can close up a bit), 585@1.290” open, rate 480, stainless valves, titanium retainers
Compression - somewhere between 12 - 13 to 1
Weight - around 2800lb with driver
Intake - 2925 Super Victor ported by Chad
Carb - 1050 Dominator (2 circuit conversion 8) ), 2 inch HVH adaptor / spacer
Trans - Powerglide with 1.82 first gear
Converter - None, will be built to suit after dyno testing
Transbrake - Yes
Rear Gear - 5.14 for 1/8 mile and 4.56 or 4.71 or 4.86 for 1/4 mile (to be decided)
Tyre size - 31x13x15 slicks
Desired RPM - whatever it is, race car only

Just looking for a reliable/consistent car engine combination.

Sorry to steal your thread Bill, just thought I would ask as alot of camshaft discussion and similar combo. Will be building and dynoing later in the year and will post results also.

Cheers, Grant.
Image
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