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07-28-2006, 11:08 AM | #1 |
On a budget like Fred Sanford
Join Date: Oct 2005
Location: Topeka, KS
Posts: 2,031
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It lives again!!! (vid inside)
Finally got the new cam/lifters/springs in the truck this past weekend and spent the evenings this week fine tuning the spark curve and carb. Hopefully I don't have another lobe/lifter failure for a loooooong time......in-truck cam swaps suck, especially when you're doing it in the driveway in 100 degree weather. Break in went very well and the truck is running great! I will say that even though I expected some valvetrain noise from comp's xtreme line, it seriously sounds like a solid lifter motor now. Nothing I can't get used to though. Here's a quick clip of how she sounds......between this thing and the camaro, my neighbors probably hate me.
http://media.putfile.com/New-Cam-Idle
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'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 Last edited by swb85; 07-28-2006 at 11:11 AM. |
07-28-2006, 02:59 PM | #2 |
Registered User
Join Date: Apr 2005
Location: Ar
Posts: 558
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Re: It lives again!!! (vid inside)
OOh yeah thats sweet sweet music. I bet the ricers pee their pants when you pull up on them at the stop light/stop signs. How much compression are you running with that combo? Is it a edelbrock performer carb, and if so what size is it? Man thats nice, enjoy.
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07-28-2006, 03:53 PM | #3 |
Senior Member
Join Date: Jan 2005
Location: New Orleans
Posts: 1,365
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Re: It lives again!!! (vid inside)
Awesome. That sounds great. Congrats. Nothing sounds better to me than a camed up V-8. Is that the XM270? I know that marine cams are a liitle more agressive.
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07-28-2006, 04:37 PM | #4 |
Chevy truck addict
Join Date: Apr 2005
Location: Thornton Colorado
Posts: 825
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Re: It lives again!!! (vid inside)
sounds great man....burnout time.....
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07-28-2006, 04:46 PM | #5 |
On a budget like Fred Sanford
Join Date: Oct 2005
Location: Topeka, KS
Posts: 2,031
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Re: It lives again!!! (vid inside)
Thanks guys! Compression is around 9:1, carb is a 1405 edelbrock performer 600cfm.
Nolowrider: Yes, it's the xm270h. Specs are 226/236 .480/.489 112 lsa. I did a lot of talking on the phone with comp about cam specs and this one was perfect for my setup. The higher lsa keeps cylinder pressure up with my lower compression. It builds tons of down-low torque and pulls hard all the way past 6k rpm. It even idles a little smoother than I thought it would. The ramp rates are fairly aggressive and make more noise than any other hydraulic cam I've heard, but I'm growing to like the sound! It really sounds badass in person, the vid doesn't do it justice!
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'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 |
07-28-2006, 04:49 PM | #6 | |
On a budget like Fred Sanford
Join Date: Oct 2005
Location: Topeka, KS
Posts: 2,031
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Re: It lives again!!! (vid inside)
Quote:
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'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 |
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07-28-2006, 05:32 PM | #7 |
Senior Member
Join Date: Jan 2005
Location: New Orleans
Posts: 1,365
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Re: It lives again!!! (vid inside)
That canm really sounds great. It must sound bad azz in person because the vid sounds awesome. Congrats on your work. I went with the Comp XE line, happy so far. No noise. As far as the "one tire fryer" syndrome, take a good look at the "lock-rite" setup. I have it and it works great, at a fraction of the cost. Easy to install (1hr) and if I can do it, anyone can. Highly reccomended.
Last edited by Nolowrider; 07-28-2006 at 05:33 PM. |
07-28-2006, 05:51 PM | #8 |
On a budget like Fred Sanford
Join Date: Oct 2005
Location: Topeka, KS
Posts: 2,031
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Re: It lives again!!! (vid inside)
Interesting.....what does one of those powertrax cost?
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'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 |
07-28-2006, 06:37 PM | #10 |
Registered User
Join Date: May 2004
Location: Lubbock, Texas
Posts: 2,121
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Re: It lives again!!! (vid inside)
What kind of exhaust do you have on your truck?
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'96 Nissan Pathfinder '02 Firebird Trans Am. '88 K5 Blazer |
07-28-2006, 10:22 PM | #11 |
Registered User
Join Date: Feb 2003
Location: Midwest City, OK
Posts: 1,001
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Re: It lives again!!! (vid inside)
Sounds great!
Ditto on what Bane asked. What's your exhaust set-up?
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Robert Current: 1986 SWB Silverado 4.3 / TH400 Past: 1985 SWB Silverado 305 / TH350 - sold 1995 1987 1/2 ton Silverado - FI 350 / 700R4 sold 2007 |
07-28-2006, 11:41 PM | #12 |
Registered User
Join Date: Apr 2005
Location: Ar
Posts: 558
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Re: It lives again!!! (vid inside)
What about Detroit True-Trac? Has anybody tried or seen one in action?
http://store.summitracing.com/partde...5&autoview=sku |
07-28-2006, 11:54 PM | #13 | |
needin' money
Join Date: May 2005
Location: Chickasha, Oklahoma
Posts: 1,106
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Re: It lives again!!! (vid inside)
Quote:
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SWB Stands for Short Wide Bed |
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07-29-2006, 11:07 AM | #14 |
On a budget like Fred Sanford
Join Date: Oct 2005
Location: Topeka, KS
Posts: 2,031
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Re: It lives again!!! (vid inside)
Thanks for the compliments! Exhaust systems is ceramic coated hooker longtubes, flowmaster 3"->2.5" smooth reducer cones, 2.5" dual exhaust (no crossover) and 40 series flowmasters. Compression is around 9:1.
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'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 |
07-31-2006, 08:33 PM | #15 |
Needs a Big Block
Join Date: Oct 2003
Location: Red Deer , Alberta
Posts: 1,198
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Re: It lives again!!! (vid inside)
DAMN YOU , Im now pulling my truck off the road to install the comp xe274 I have sitting here and the roller rockers
hope fully itll sound like yours , Nice work man , cool cool truck
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1964 Short box On dropmembers and billets 1962 Suburban family cruiser 1972 K10 |
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