CC 280XFI or Lunatti VOODOO 60122
02-11-2011, 11:03 PM
#1
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CC 280XFI or Lunatti VOODOO 60122 i have a 11.03:1 compression 383cube forged H/C/I/E with all supporting mods, im curently running the 280xfi and it seems to be very torquey and pulls pretty decent and im wanting a little more up top and i have the option of getting a voodoo 60122 from a buddy and wonder if it would be worth the time to change it out. also i have a 125-175 shot on tap if that makes a difference on cam selection havn't used it yet thou
280XFI specs out 280/286av, 230/236, .570/.576 lift with 1.6rr, 113 LSA, 109 ICL
60122 specs out 282/290av, 231/239, .570/.586 lift with 1.6rr, 110 LSA, 106 ICL
3.73
raptor 4l60E stg 3 with 2500 stall
1.6 rr
58mm tb
k&n cai
edelbrock lt4 air gap
ported heads flowing 250in and 192ex with 120#seat/340# open springs
pacesetter LT
280XFI specs out 280/286av, 230/236, .570/.576 lift with 1.6rr, 113 LSA, 109 ICL
60122 specs out 282/290av, 231/239, .570/.586 lift with 1.6rr, 110 LSA, 106 ICL
3.73
raptor 4l60E stg 3 with 2500 stall
1.6 rr
58mm tb
k&n cai
edelbrock lt4 air gap
ported heads flowing 250in and 192ex with 120#seat/340# open springs
pacesetter LT
Last edited by firebird446; 02-11-2011 at 11:51 PM. Reason: cam specs added
02-12-2011, 09:52 AM
#5
Springs you have wont handle either cam.
Not that flow numbers are really that great an indication but the intake flow numbers are weak, the exhaust are probably inflated with a pipe, and the Edelbrock intake was a huge mistake.
Only thing I would do to the engine would be new valvesprings to handle the cam you have because you are going to need money to replace that tranny when it blows because the PATC stuff is JUNK.
I wish people would ask questions BEFORE screwing up this wildly.
Far as the cams I would prefer the Lunati over the XFI but like I said, you have more important things to worry about.
Not that flow numbers are really that great an indication but the intake flow numbers are weak, the exhaust are probably inflated with a pipe, and the Edelbrock intake was a huge mistake.
Only thing I would do to the engine would be new valvesprings to handle the cam you have because you are going to need money to replace that tranny when it blows because the PATC stuff is JUNK.
I wish people would ask questions BEFORE screwing up this wildly.
Far as the cams I would prefer the Lunati over the XFI but like I said, you have more important things to worry about.
02-13-2011, 12:20 PM
#6
The Lunati stick looks "better" if you're prepared to let go of the nice streetable manners of the XFI. Going down to a 110LSA is going to give you a much more choppy idle; its also going to make the lunati cam's "231/239" duration seem like a lot (lot) more than the XFI's 230/236 which is on a 113 LSA. I don't know at what lift your heads stop flowing at; if its anywhere near the .575 mark I don't think you'd benefit that much from wanting a cam with more lift...
The lift comment is off base as well. That's the difference between bench racing and knowi g what actually works.
Within the limits of the valve train, more lift is always a benefit.
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02-13-2011, 12:53 PM
#8
PATC is Performance Automatic Transmission Center, the hacks who sell the "raptor 4L60E".
I don't think the 110LSA will be as bad as you think. It is likely it will lope more but a 113LSA on an NA gen 1 or LT1 is done to tame too big a cam or to make for good idle emissions.
The duration of these cams is reasonable for a stroker. The back office tech guys at Comp know 113 is wrong, but that is what is sold for the above reasons, most people choose too big a cam and a lot of folks want something that will pass emissions and Comp wants to offer that possibility. If you call the tech line though you get clueless goobers who read the catalog with all it's incorrect information so do not bother.
A beehive can control these cams, just not the ones Comp specs because their rpm ranges are wrong for the LT1s. Many of us using professionally designed valvetrains are using the PAC 1220 "big block" beehive, not sure what it would take to make them work on your heads though, pretty sure you need longer than stock valves to get the installed height right.
I don't think the 110LSA will be as bad as you think. It is likely it will lope more but a 113LSA on an NA gen 1 or LT1 is done to tame too big a cam or to make for good idle emissions.
The duration of these cams is reasonable for a stroker. The back office tech guys at Comp know 113 is wrong, but that is what is sold for the above reasons, most people choose too big a cam and a lot of folks want something that will pass emissions and Comp wants to offer that possibility. If you call the tech line though you get clueless goobers who read the catalog with all it's incorrect information so do not bother.
A beehive can control these cams, just not the ones Comp specs because their rpm ranges are wrong for the LT1s. Many of us using professionally designed valvetrains are using the PAC 1220 "big block" beehive, not sure what it would take to make them work on your heads though, pretty sure you need longer than stock valves to get the installed height right.
02-13-2011, 12:56 PM
#10
LCA is related to overlap but were talkin about 2 completely seperate profiles here. Blanket statements such as a 110 will have a rough idle just simply aren't true. It's all about figuring out what overlap re engine needs.
My cam is custom designed by me and a friend using XFI lobes. It's a baby cam < 220 intake duration.
My cam is custom designed by me and a friend using XFI lobes. It's a baby cam < 220 intake duration.
02-14-2011, 02:17 PM
#11
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Well I know my heads are sucking right now but they are getting sent off to LE. Sooner than I expected. And the cam is getting scraped Probally. All this being said is because of yesterday, she failed and I didn't catch the oil pressure drop till it was to late. Only got around 2000 miles on this build. Bearings are Junk now. And i think I'm going custom cam next time like I did with my ls1 few months back and it was perfect. Now I've gotta take the paper weight back out, see what happened, rebuild back to a 383, or go for the 396 I already have 6" rods so the option is hard. Scat crank or back to a eagle or callies
02-14-2011, 02:24 PM
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As for the patc tranny its holding strong for now, but when it breaks ill go back to searching for bigger and better. Yes my stall was small and thats changing for sure now Probally 3-35k next build
02-14-2011, 02:34 PM
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The heads were the edelbrocks 61909 so the flow sheet is on their website, and I made that mistake on stock block setup, before i decided on the stroker build. Same goes for air gap manifold. it might be saved with some porting LOL by le
02-14-2011, 07:02 PM
#14
PATC is Performance Automatic Transmission Center, the hacks who sell the "raptor 4L60E".
I don't think the 110LSA will be as bad as you think. It is likely it will lope more but a 113LSA on an NA gen 1 or LT1 is done to tame too big a cam or to make for good idle emissions.
The duration of these cams is reasonable for a stroker. The back office tech guys at Comp know 113 is wrong, but that is what is sold for the above reasons, most people choose too big a cam and a lot of folks want something that will pass emissions and Comp wants to offer that possibility. If you call the tech line though you get clueless goobers who read the catalog with all it's incorrect information so do not bother.
A beehive can control these cams, just not the ones Comp specs because their rpm ranges are wrong for the LT1s. Many of us using professionally designed valvetrains are using the PAC 1220 "big block" beehive, not sure what it would take to make them work on your heads though, pretty sure you need longer than stock valves to get the installed height right.
I don't think the 110LSA will be as bad as you think. It is likely it will lope more but a 113LSA on an NA gen 1 or LT1 is done to tame too big a cam or to make for good idle emissions.
The duration of these cams is reasonable for a stroker. The back office tech guys at Comp know 113 is wrong, but that is what is sold for the above reasons, most people choose too big a cam and a lot of folks want something that will pass emissions and Comp wants to offer that possibility. If you call the tech line though you get clueless goobers who read the catalog with all it's incorrect information so do not bother.
A beehive can control these cams, just not the ones Comp specs because their rpm ranges are wrong for the LT1s. Many of us using professionally designed valvetrains are using the PAC 1220 "big block" beehive, not sure what it would take to make them work on your heads though, pretty sure you need longer than stock valves to get the installed height right.
I run the XFI468 cam. It is 242/248 , .584/.579 on a 114. The current cam is now on a 113. I run it with the comp beehive 918's and they are rock solid. I shift it at 68-6900rpm all day long. It pulls like a freight train from 5000-6500rpm. It falls off a little after 6500rpm on a 350. Put it on a 383 and you'll knock it down several hundred rpm. The catalog says 2200-6200. Not sure how you'd get it to pull to 7200rpm on an LT1 unless you destroked one and built a 302.
Let me guess, you read it on the Impala forum so it must be true?
02-14-2011, 08:38 PM
#15
and you are about the only person claiming I am wrong. Get some good port work in those heads like fergymoto had in his Lingenfelter heads. https://ls1tech.com/forums/11269446-post22.html
https://ls1tech.com/forums/8469288-post9.html 6500 in a 396, displacement soaks up duration.
If that cam is begining to fall off at 6500 the heads are choking it or the valvetrain is not up to par.
The rest of us are making peak about 6500 with cams more than 10degrees smaller on the intake.
I remember "the engineer" having to swap his 918s out with the above linked XFI cam because they were not enough.
It is really well documented, if you are having good luck great but it does not make it the rule.
https://ls1tech.com/forums/8469288-post9.html 6500 in a 396, displacement soaks up duration.
If that cam is begining to fall off at 6500 the heads are choking it or the valvetrain is not up to par.
The rest of us are making peak about 6500 with cams more than 10degrees smaller on the intake.
I remember "the engineer" having to swap his 918s out with the above linked XFI cam because they were not enough.
It is really well documented, if you are having good luck great but it does not make it the rule.
