new cam new headers...soundcheck

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360duster

360duster

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Hi Guys, got my engine done and installed in the car after a damaged crank thrust. new cam is (my own specs, comp QNX lobes) 250/250 @ .050", 108 LSA, installed at 104 ICL. around .620" lift with 1.6 Rockers. New headers are hedman huslers, 1 7/8" primaries with 3,5" collectors.

Sounds pretty mean, what do you think? possibly in july i´ll be able to do some testing at a track......hope to dip in the tens (11.0 so far, before the new goodies).

Second video is with the track only exhaust.....basically some header extensions with Dynomax mini race bullets #24251. Did not expect such a difference, noticeably quieter. Have to make some exhaust for the street, removable via V-bands, with dynomax super turbos i already have.

Check out our FB-Page and leave a like if you want to: (1) The A-Team Dragrace | Facebook

Michael

1968 Valiant / new cam new headers - YouTube

1968 Valiant / new Cam new Headers -- with track exhaust - YouTube
 
Damn, that sounds awesome! What's the cubic inch?

How's that Sniper EFI seem to be working? I always thought aftermarket efi didn't play well with moderately-large cammed engines. Or is that just an urban myth???

Either way, that car is badass. Thanks for posting!
 
Sounds sick. Love the 318 air cleaner lid, but I don't think many will buy it. Curious how it behaves on the street with that cam.
 
mopowers said:
Damn, that sounds awesome! What's the cubic inch?

How's that Sniper EFI seem to be working? I always thought aftermarket efi didn't play well with moderately-large cammed engines. Or is that just an urban myth???

Either way, that car is badass. Thanks for posting!
Click to expand...

it´s a 408, hydraulic roller cam LA block. I was a little concerned regarding the sniper, but i just started on the previous tune without any trouble. when the street exhaust is done i´ll let it learn a bit to get the maps correct again. So the sniper seems to have no trouble with such cam.

Michael
 
360duster said:
Hi Guys, got my engine done and installed in the car after a damaged crank thrust. new cam is (my own specs, comp QNX lobes) 250/250 @ .050", 108 LSA, installed at 104 ICL. around .620" lift with 1.6 Rockers. New headers are hedman huslers, 1 7/8" primaries with 3,5" collectors.

Sounds pretty mean, what do you think? possibly in july i´ll be able to do some testing at a track......hope to dip in the tens (11.0 so far, before the new goodies).

Second video is with the track only exhaust.....basically some header extensions with Dynomax mini race bullets #24251. Did not expect such a difference, noticeably quieter. Have to make some exhaust for the street, removable via V-bands, with dynomax super turbos i already have.

Check out our FB-Page and leave a like if you want to: (1) The A-Team Dragrace | Facebook

Michael

1968 Valiant / new cam new headers - YouTube

1968 Valiant / new Cam new Headers -- with track exhaust - YouTube
Click to expand...
Dam Boy that is sweet.
I am a sucker for nice coolant hose clamps. LOL
 
It's the hemi wedge heads that really make it pop
 
Man that is music to my ears....especially since I hooked up my computers speaker columns and turned it up!!
I love your attention to detail..Love how clean it looks.Great Job!!
HotRod20
 
Sounds awesome! I rebuilt the 360 in my 74 w200. Used aluminum heads and a mild 340 4 speed cam. Not too happy sounds stock. Lol. But the powers that be on this forum insisted I don’t go bigger for a 4x4 truck..
 
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