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Re: looking for some cam opinions 360 street strip [Re: aspenrt360] #1726777
01/14/15 02:15 PM
01/14/15 02:15 PM
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Windsor, ON, Canada
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Diplomat360 Offline
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I'm running an older Hughes Hydraulic flat-tappet, HE3844AL.

Specs are:
.535/.540 lift, 237/243 dur. @ .050", 286/290 adv. dur., 108 LSA

This is in a 360 motor (9.8 statis CR) in my M-body coupe. With a single plane Holley Strip Dominator, Dynamic 3800 converter, 3.91 gears the car went 13.13 @ 102 mph the one and only time I had it at the strip this past season - I thought this was a bit slow.

Prior to the track outing I went from Perfomer RPM intake to the single plane and lost a noticeable amount of low end torque...going back to the Perfomer RPM over the winter break and hoping to get into mid-12s once I do a pile more tuning, etc, etc.

Recommendation wise, I would not go bigger then anything like the Hughes SEH3642AL-8. You will probably like something a bit smaller with the 3200 stall.

Re: looking for some cam opinions 360 street strip [Re: Diplomat360] #1726778
01/14/15 02:35 PM
01/14/15 02:35 PM
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Thumperdart Offline
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Quote:

I'm running an older Hughes Hydraulic flat-tappet, HE3844AL.

Specs are:
.535/.540 lift, 237/243 dur. @ .050", 286/290 adv. dur., 108 LSA

This is in a 360 motor (9.8 statis CR) in my M-body coupe. With a single plane Holley Strip Dominator, Dynamic 3800 converter, 3.91 gears the car went 13.13 @ 102 mph the one and only time I had it at the strip this past season - I thought this was a bit slow.

Prior to the track outing I went from Perfomer RPM intake to the single plane and lost a noticeable amount of low end torque...going back to the Perfomer RPM over the winter break and hoping to get into mid-12s once I do a pile more tuning, etc, etc.

Recommendation wise, I would not go bigger then anything like the Hughes SEH3642AL-8. You will probably like something a bit smaller with the 3200 stall.





I`d keep the intake and tune the ign. and carb fully and you might be surprised..........


72 Dart 470 n/a BB stroker street car `THUMPER`...Check me out on FB Dominic Thumper for videos and lots of carb pics......760-900-3895.....
Re: looking for some cam opinions 360 street strip [Re: Thumperdart] #1726779
01/14/15 06:39 PM
01/14/15 06:39 PM
Joined: Feb 2004
Posts: 855
ontario canada kingston
aspenrt360 Offline OP
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Just out of interest what heads are you running Diplomat? I will have a look at that other grind from hughes. the block is off to the machine shop on Friday. took me a while to find a guy with plates for a small block here in chevyland! I am trying out a new guy just to see if his work is as good as folks say, stay tuned! at tleast I have a few blocks in case he is not up to it.

8396298-DSC04421.JPG (75 downloads)

2013 Chrysler 300 touring 1974 Dodge Charger SE. 360-727-8.75-3.23 sure grip 1972 Dodge Dart Swinger 1995 Dodge Ram 1500 4x4
Re: looking for some cam opinions 360 street strip [Re: Diplomat360] #1726780
01/14/15 06:44 PM
01/14/15 06:44 PM
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VincentVega Offline
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guessing on your weight of the car and altitude (sea level?), I'd say that puts you over 400 hp at the crank. That's no slouch of a 360. But yeah, same question as above, limiting factor may be the heads

Unless you're going well over 6,000 my own personal preference would be to stick to the dual plane


Looking for 1975 through 1978 B body 4 door sedan sheet metal or parts cars - monaco, fury, coronet. Please let me know
Re: looking for some cam opinions 360 street strip [Re: aspenrt360] #1726781
01/14/15 07:14 PM
01/14/15 07:14 PM
Joined: Jan 2003
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Windsor, ON, Canada
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Diplomat360 Offline
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Quote:

Just out of interest what heads are you running Diplomat?




I went with a set of 596 castings, I had the machine shop go over them. New Manley severe duty valves, 2.02/1.60, 11/32 stem, new bronze guides, and a standard 3 angle valve job. I ported them using the MP porting templates, here are the flow numbers (flowed on SF-600 @ 28" water):

LIFT I E

0.100 67 57
0.150 99 79
0.200 130 104
0.250 162 125
0.300 189 140
0.350 215 152
0.400 235 160
0.450 253 167
0.500 262 172
0.550 261 175
0.600 248 177

Nothing crazy, but good enough for a DIY job...LOL...I had fun, satisfaction and new-found appreciation for those guys who do this type of work for a living.

Re: looking for some cam opinions 360 street strip [Re: Diplomat360] #1726782
01/14/15 07:30 PM
01/14/15 07:30 PM
Joined: Apr 2005
Posts: 12,271
Overpriced Housing Central
RobX4406 Offline
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Quote:

Quote:

Just out of interest what heads are you running Diplomat?




I went with a set of 596 castings, I had the machine shop go over them. New Manley severe duty valves, 2.02/1.60, 11/32 stem, new bronze guides, and a standard 3 angle valve job. I ported them using the MP porting templates, here are the flow numbers (flowed on SF-600 @ 28" water):

LIFT I E

0.100 67 57
0.150 99 79
0.200 130 104
0.250 162 125
0.300 189 140
0.350 215 152
0.400 235 160
0.450 253 167
0.500 262 172
0.550 261 175
0.600 248 177

Nothing crazy, but good enough for a DIY job...LOL...I had fun, satisfaction and new-found appreciation for those guys who do this type of work for a living.




Intake manifold is killing the mid range that you are pulling through. Only way to cure that is to have a converter that flashes to 4500ish for overcoming the Strip Dom weaknesses.

I have a couple strip doms hanging on the wall for a reason... Fuel delivery could be an issue for lack of MPH.

A comparative from a slightly stronger, solid cammed combination. With a smaller cam, I'd expect the lower rpm delta to be the same or even worse.

http://www.hotrod.com/how-to/engine/mopp-0108-dyno-testing-small-block-intakes/

Re: looking for some cam opinions 360 street strip [Re: VincentVega] #1726783
01/14/15 07:39 PM
01/14/15 07:39 PM
Joined: Jan 2003
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Windsor, ON, Canada
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Diplomat360 Offline
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Thumperdart:
The car is really a street car...and the "butt meter" was reading noticebly higher on the fun factor with the Performer RPM intake. My ignition is a standard MP distributor with the chrome ECU and Yellow coil. I do run an already fast advance curve that has been changed over from the stock configuration. Initial timing is 21 deg, max machanical is 36.

VincentVega:
Car (per the local scale) is about 3400 lbs with 1/4 tank of gas, 3600 lbs. w/ driver (175 lbs).

I'm running anti pump-up lifters with that Hughes cam. Motor spins up to 6500 easy, but on the track you can tell it flat-lines right around the 6300 mark.

My goal for this season is to re-focus on the Carter TQ tuning. The spread-bore configurations of the Holley single plane intake was what attracted me to it, otherwise I need to run an adapter on the Performer RPM. The wide-band O2 readings did show me running to rich...so it needs some work.

aspenrt360:
Sorry for a bit of a tangent on your original thread, not meaning to, just wanted to give a more complete picture of the framework the cam I'm talking about is being used within.

Re: looking for some cam opinions 360 street strip [Re: Diplomat360] #1726784
01/14/15 07:58 PM
01/14/15 07:58 PM
Joined: Jul 2004
Posts: 19,301
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Thumperdart Offline
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Could very well be the ticket then. Again, you will get different opinions based on their personal experiences then of course, there`s what werkz for YOU...........


72 Dart 470 n/a BB stroker street car `THUMPER`...Check me out on FB Dominic Thumper for videos and lots of carb pics......760-900-3895.....
Re: looking for some cam opinions 360 street strip [Re: Thumperdart] #1726785
01/15/15 03:52 PM
01/15/15 03:52 PM
Joined: Feb 2004
Posts: 855
ontario canada kingston
aspenrt360 Offline OP
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No worries diplomat, looking for as much info as possible. I like to hear what guy's are running as sometimes it is easy to get tunnel vision and think there is only one way to skin a cat so to speak. I have an idea how I am going to approach things, I think I will baseline the car with a known cam intake combo I have then with what I learn tune from there. once the chassis is fairly dialed and we get close on gear I will start with cam and head swaps till we are happy. that is why I am looking for info now so I can start picking up parts to test down the road. we want to hurt some mustangs at our local events! and we want to do it in a bit of a stealth way just for the fun of it of course.


2013 Chrysler 300 touring 1974 Dodge Charger SE. 360-727-8.75-3.23 sure grip 1972 Dodge Dart Swinger 1995 Dodge Ram 1500 4x4
Re: looking for some cam opinions 360 street strip [Re: aspenrt360] #1726786
01/23/15 01:02 AM
01/23/15 01:02 AM
Joined: Feb 2004
Posts: 855
ontario canada kingston
aspenrt360 Offline OP
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ontario canada kingston
ok so after much looking around and talking to cam folks I think I will go with a hughes cam. I am thinking either a sea 3236al or the sea 2832 al any thoughts on these?


2013 Chrysler 300 touring 1974 Dodge Charger SE. 360-727-8.75-3.23 sure grip 1972 Dodge Dart Swinger 1995 Dodge Ram 1500 4x4
Re: looking for some cam opinions 360 street strip [Re: aspenrt360] #1726787
01/24/15 12:19 PM
01/24/15 12:19 PM
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People's Republic of Mass.
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Belvedere2 Offline
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I'd go with the 2832. If you like the way it runs and then want more power just up the rocker ratio to 1.6 Check clearances when your building so you have enough.

Re: looking for some cam opinions 360 street strip [Re: Belvedere2] #1726788
01/24/15 05:31 PM
01/24/15 05:31 PM
Joined: Feb 2004
Posts: 855
ontario canada kingston
aspenrt360 Offline OP
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building it with plenty of room so future upgrades can happen. I am kind of thinking of going with the bigger one. this is not a daily driver so go big or go home? any other opinions? thanks guy's it is always interesting to get everyone's thoughts!


2013 Chrysler 300 touring 1974 Dodge Charger SE. 360-727-8.75-3.23 sure grip 1972 Dodge Dart Swinger 1995 Dodge Ram 1500 4x4
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