Made some more power today - The 1947 - Present Chevrolet & GMC Truck Message Board Network

Super73 · 10-01-2009, 07:39 PM

Finally got the truck on the rollers.. What changed:

3.73's to 4.56
LS6 intake to Super Victor
Ported stock TB to Dominator with a 4150 reducer and NX 2 stage plate
Stock water pump to an electric pump

Now I just need it to cool off out side and go racing.

djracer · 10-01-2009, 11:10 PM

Its pretty nice here! Can you say ROAD TRIP!

swb85 · 10-02-2009, 12:41 PM

Cam specs? Peaks pretty high! That victor really blows past the LS6 above 6k rpm. Good work!

Super73 · 10-02-2009, 10:10 PM

This is the same exact set up except for:

Super Vic / Domintor TB to a 4150 reducer and NX plate
Electric Water pump
4.56's vs the 3.73's

Cam is 243/250 108icl 112ecl (110lsa)

I would love to throw a different cam in it, but I can't really spend the money right now not having a job. I'd have to buy springs and push rods as well. I think there is another 20-30hp on the table if I swapped the cam and spun it to 7,500..

'72customdeluxe · 10-03-2009, 02:43 AM

With the big stall you have, can you even notice a difference down low between the two because it just slips in everyday driving? If I got a 6.0 and was doing the swap in the garage i'd go for the edelbrock package with the MSD box and the vic. jr. or Performer RPM manifold. One side of me says the performer would flow more than most efi manifolds, but I haven't seen any testing done with it. The other side says take a fat ole nasty cam and run a single plain. Rev the piss out of it with a big stall because I don't have the money for cubes, boost or nitrous and cams all cost the same anyway. Both scenarios with an SMI jetted Holley, ormaybe I could squeeze 12 mpg's out of one of their quadrajets

I'm not computer savvy and am really starting to figure this carb and mechanical ignition thing out. Added 8 degrees of initial timing to the old 350 this week after getting the rebuilt quad back and it runs like a 200 horsepower beast

Super73 · 10-05-2009, 11:56 PM

If you did you computerized LS, had a wideband, I could help you get it nailed just sitting here on my couch

All you need to do is e-mail me your tune, I make some changes and show you what they are. You upload it and go.

I wouldn't go Vic JR, they need a lot of work out of the box.. I should have put my box stock one on just to see the difference.

'72customdeluxe · 10-06-2009, 01:49 AM

Yeah, but any new motor is a ways off. Still got body resto and I would have to get the trans and rear built. For now i'm saving my coin on headers and 2.5 inch duals (would go 2.25 with my wuss motor, but with crush bent that's a little small), h-pipe and some Classic Chambered mufflers, one rectangle Camaro tip right before each tire under the step. Should sound like a '69 dz 302 or 396/375 Chevelle with the chambered exhaust option and half as much compression

tweak on the quad some more to compensate for my headers and then move on to 4.10's and a tru-trac. Wouldn't be a race truck or even near a tweaked 5.3 silvy by any means, but enough to lay the smack down on many a ricer. Maybe a cheap converter if I decide to regasket the motor, it runs good enough to warrant that and a repaint. Plus my front trans seal is leaking like they all do. But my stock converter only gets up to 1300 rpm on the brake

10-01-2009, 07:39 PM	#1
Super73 Registered User Join Date: Nov 2007 Location: Bay Area, Ca Posts: 2,841	Made some more power today Finally got the truck on the rollers.. What changed: 3.73's to 4.56 LS6 intake to Super Victor Ported stock TB to Dominator with a 4150 reducer and NX 2 stage plate Stock water pump to an electric pump Now I just need it to cool off out side and go racing. __________________ ------Motor---------------Bottle 60'---1.53---------------1.41 1/8---6.58 @ 105.92----5.87 @ 118.41 1/4---10.38 @ 126.97----9.24 @ 142.49 Last edited by Super73; 10-01-2009 at 07:40 PM.

10-01-2009, 11:10 PM	#2
djracer Registered User Join Date: Feb 2001 Location: Wetumpka, Al, U.S. Posts: 8,892	Re: Made some more power today Its pretty nice here! Can you say ROAD TRIP! __________________ Kevin Special Thanks to All who have helped on the TRUCK! My Pass Time Show http://s129.photobucket.com/albums/p...Chapter1-0.mp4 So Far my best Times are: Motor only: 6.44 1/8 @ 104.13 10.39 1/4 @ 125.83 Nitrous Times: 5.785 1/8 @ 118.65 with a 1.336 60ft 9.168 1/4 @ 142.58 with a 250 shot dead out of the hole!

10-02-2009, 12:41 PM	#3
swb85 On a budget like Fred Sanford Join Date: Oct 2005 Location: Topeka, KS Posts: 2,031	Re: Made some more power today Cam specs? Peaks pretty high! That victor really blows past the LS6 above 6k rpm. Good work! __________________ '85 Silverado swb: 383 stroker, 10.5:1, vortec heads, 232/238 roller cam, RPM air gap, performer 750 carb, stainless longtubes, 3" duals/super 44's, T56/4.11 383ci build / exterior refresh thread '98 Camaro z28: 370ci twin turbo 370ci build '01 Tahoe LT 4x4: 5.3, longtubes/ory, magnaflow duals, custom tune....wife's DD

10-02-2009, 10:10 PM	#4
Super73 Registered User Join Date: Nov 2007 Location: Bay Area, Ca Posts: 2,841	Re: Made some more power today This is the same exact set up except for: Super Vic / Domintor TB to a 4150 reducer and NX plate Electric Water pump 4.56's vs the 3.73's Cam is 243/250 108icl 112ecl (110lsa) I would love to throw a different cam in it, but I can't really spend the money right now not having a job. I'd have to buy springs and push rods as well. I think there is another 20-30hp on the table if I swapped the cam and spun it to 7,500.. __________________ ------Motor---------------Bottle 60'---1.53---------------1.41 1/8---6.58 @ 105.92----5.87 @ 118.41 1/4---10.38 @ 126.97----9.24 @ 142.49

10-03-2009, 02:43 AM	#5
'72customdeluxe Registered User Join Date: Jan 2008 Location: Tejas Posts: 691	Re: Made some more power today With the big stall you have, can you even notice a difference down low between the two because it just slips in everyday driving? If I got a 6.0 and was doing the swap in the garage i'd go for the edelbrock package with the MSD box and the vic. jr. or Performer RPM manifold. One side of me says the performer would flow more than most efi manifolds, but I haven't seen any testing done with it. The other side says take a fat ole nasty cam and run a single plain. Rev the piss out of it with a big stall because I don't have the money for cubes, boost or nitrous and cams all cost the same anyway. Both scenarios with an SMI jetted Holley, ormaybe I could squeeze 12 mpg's out of one of their quadrajets I'm not computer savvy and am really starting to figure this carb and mechanical ignition thing out. Added 8 degrees of initial timing to the old 350 this week after getting the rebuilt quad back and it runs like a 200 horsepower beast __________________ '72 cheyenne super step, '05 long bed gmc

10-05-2009, 11:56 PM	#6
Super73 Registered User Join Date: Nov 2007 Location: Bay Area, Ca Posts: 2,841	Re: Made some more power today If you did you computerized LS, had a wideband, I could help you get it nailed just sitting here on my couch All you need to do is e-mail me your tune, I make some changes and show you what they are. You upload it and go. I wouldn't go Vic JR, they need a lot of work out of the box.. I should have put my box stock one on just to see the difference. __________________ ------Motor---------------Bottle 60'---1.53---------------1.41 1/8---6.58 @ 105.92----5.87 @ 118.41 1/4---10.38 @ 126.97----9.24 @ 142.49

10-06-2009, 01:49 AM	#7
'72customdeluxe Registered User Join Date: Jan 2008 Location: Tejas Posts: 691	Re: Made some more power today Yeah, but any new motor is a ways off. Still got body resto and I would have to get the trans and rear built. For now i'm saving my coin on headers and 2.5 inch duals (would go 2.25 with my wuss motor, but with crush bent that's a little small), h-pipe and some Classic Chambered mufflers, one rectangle Camaro tip right before each tire under the step. Should sound like a '69 dz 302 or 396/375 Chevelle with the chambered exhaust option and half as much compression tweak on the quad some more to compensate for my headers and then move on to 4.10's and a tru-trac. Wouldn't be a race truck or even near a tweaked 5.3 silvy by any means, but enough to lay the smack down on many a ricer. Maybe a cheap converter if I decide to regasket the motor, it runs good enough to warrant that and a repaint. Plus my front trans seal is leaking like they all do. But my stock converter only gets up to 1300 rpm on the brake __________________ '72 cheyenne super step, '05 long bed gmc



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