SpeedTalk Store - Opinion Columns

Voodoo lunati cams?

General engine tech -- Drag Racing to Circle Track

Moderator: Team

Voodoo lunati cams?

Postby Sky rocket » Sat Mar 16, 2013 4:58 pm

Hi Guys,

I'm looking for a new cam for my 388ci street engine, Is there anyone one here using those lunati cam profiles in their steet engines? I would like to bleed off some lower rpm TQ for a stronger top end.

http://www.lunatipower.com/CamSpecCard. ... mber=60133

http://www.lunatipower.com/CamSpecCard. ... mber=60134

Lunati recomened me the first profile.

Engine spec is in my signature

Thanks
388ci with TWM EFI injection,Bowtie block 4.125 bore,callies crank 3.625 stroke,scat 6' Hbeams,JE piston, 236/244 on 112 solid roller cam,Comp rev kit,Jessel belt drive,AFR heads 227cc,yella terra shaft rockers.
536hp 6,300rpm/505lbft 5,100 rpm
Sky rocket
Member
Member
 
Posts: 168
Joined: Fri Nov 06, 2009 1:56 pm
Location: London UK

Re: Voodoo lunati cams?

Postby wyrmrider » Sat Mar 16, 2013 5:05 pm

A regular poster UDHAROLD may have designed those cams- drop him a pm
what's missing from your post is compression, head flows, exhaust
intended usage trans gears weight, power brakes etc
post back, if he does not log in drop him a PM
wyrmrider
Guru
Guru
 
Posts: 2616
Joined: Thu Jan 10, 2013 10:52 pm

Re: Voodoo lunati cams?

Postby Sky rocket » Sat Mar 16, 2013 5:08 pm

wyrmrider wrote:A regular poster UDHAROLD may have designed those cams- drop him a pm
what's missing from your post is compression, head flows, exhaust
intended usage trans gears weight, power brakes etc
post back, if he does not log in drop him a PM



I PM'd him sometime ago via here, but he has yet to log in and view it. lol.

compression is 10.5:1, think I have 1 7/8 header pipes with sidepipes, for street use, TKO600 gearbox, 3.54 rear axle, 2200lbs weight, using a brake servo. Cruises at 80mph at 3,000rpm
388ci with TWM EFI injection,Bowtie block 4.125 bore,callies crank 3.625 stroke,scat 6' Hbeams,JE piston, 236/244 on 112 solid roller cam,Comp rev kit,Jessel belt drive,AFR heads 227cc,yella terra shaft rockers.
536hp 6,300rpm/505lbft 5,100 rpm
Sky rocket
Member
Member
 
Posts: 168
Joined: Fri Nov 06, 2009 1:56 pm
Location: London UK

Re: Voodoo lunati cams?

Postby wyrmrider » Sat Mar 16, 2013 5:16 pm

get those head flows or estimate and Give mike jones a shout
what rpm do you shift- where do you want to shift?
whose cam now?
1.5 rockers?
try tightening up the lash and see if it makes any difference
do the intakes first, if there is an improvement do the exhausts
what lift will your springs take- spring specs
wyrmrider
Guru
Guru
 
Posts: 2616
Joined: Thu Jan 10, 2013 10:52 pm

Re: Voodoo lunati cams?

Postby Sky rocket » Sat Mar 16, 2013 5:30 pm

wyrmrider wrote:get those head flows or estimate and Give mike jones a shout
what rpm do you shift- where do you want to shift?
whose cam now?
1.5 rockers?
try tightening up the lash and see if it makes any difference
do the intakes first, if there is an improvement do the exhausts
what lift will your springs take- spring specs


Afr227's flowing, 141.2 @200 202.7@300 250.1@400 291.4@500 306.2@550 314.1@600 315.8@700 (superflow 600 figs). The heads have been reworked by some gay called joes porting. springs a beehive 185/380 with 1.6/1.5 rockers.

I just requiring if anyone is using the above cam profiles.
388ci with TWM EFI injection,Bowtie block 4.125 bore,callies crank 3.625 stroke,scat 6' Hbeams,JE piston, 236/244 on 112 solid roller cam,Comp rev kit,Jessel belt drive,AFR heads 227cc,yella terra shaft rockers.
536hp 6,300rpm/505lbft 5,100 rpm
Sky rocket
Member
Member
 
Posts: 168
Joined: Fri Nov 06, 2009 1:56 pm
Location: London UK

Re: Voodoo lunati cams?

Postby wyrmrider » Sat Mar 16, 2013 5:50 pm

I was hoping that you would hear from UDHAROLD
he could tell if these are latest technology or oldy moldy profiles
I noticed that Lunati did not have special profiles for Chryslers so I stopped looking.
also they say that SAE is .006 implying tappet lift whereas the SAE standard is .006 VALVE lift
so I have no reliable info on how they determine their seat durations...
wyrmrider
Guru
Guru
 
Posts: 2616
Joined: Thu Jan 10, 2013 10:52 pm

Re: Voodoo lunati cams?

Postby BrazilianZ28Camaro » Sat Mar 16, 2013 7:34 pm

With your CR and Gears, I'm with Lunati,,,cam number one, BUT the AFR 227 dont like that big spread from intake duration to exaust duration.

Somemething about two to four degrees more exaust duration works better, Tony Mamo tould us this, if I remember correctly.

If want more, increase the CR to 11.5 to 1, bigger cam and 410 gears. With a five or six speed tranny I'd go with 108LCA.
"I have no idols. I admire work, dedication, and competence." - Ayrton Senna
User avatar
BrazilianZ28Camaro
Guru
Guru
 
Posts: 3334
Joined: Mon Feb 09, 2009 10:52 pm

Re: Voodoo lunati cams?

Postby Ron Clevenger » Sat Mar 16, 2013 8:04 pm

Harold Brookshire did indeed design that cam series. I've used a number of them in customer builds and run one myself in a street pickup. I like them very well.

Blessings..........Ron
Creekside Racing Ministry....John 14:6
ProCharger F3-139 blow thru carb gas nonintercooled (6.30 @ 220 mph (done with that)

Currently shaking down Boost referenced MFI alcohol ProCharged system
6.20 @ 240 mph (way more to come)
Ron Clevenger
Member
Member
 
Posts: 159
Joined: Fri May 13, 2011 10:55 pm
Location: Visalia, Calif

Re: Voodoo lunati cams?

Postby pdq67 » Sun Mar 17, 2013 12:40 am

Please call UDHarold here at (662) 562-4933 and get the straight skinny from the horse's mouth.

And if you do, please say hello from ol' pdq67 for me!!

Harold is a GREAT GUY, imho..

pdq67
pdq67
Guru
Guru
 
Posts: 2817
Joined: Thu Mar 04, 2010 8:05 pm

Re: Voodoo lunati cams?

Postby Sky rocket » Sun Mar 17, 2013 3:31 am

BrazilianZ28Camaro wrote:With your CR and Gears, I'm with Lunati,,,cam number one, BUT the AFR 227 dont like that big spread from intake duration to exaust duration.

Somemething about two to four degrees more exaust duration works better, Tony Mamo tould us this, if I remember correctly.

If want more, increase the CR to 11.5 to 1, bigger cam and 410 gears. With a five or six speed tranny I'd go with 108LCA.


Can you please explain why the large split hurts the AFR's?
388ci with TWM EFI injection,Bowtie block 4.125 bore,callies crank 3.625 stroke,scat 6' Hbeams,JE piston, 236/244 on 112 solid roller cam,Comp rev kit,Jessel belt drive,AFR heads 227cc,yella terra shaft rockers.
536hp 6,300rpm/505lbft 5,100 rpm
Sky rocket
Member
Member
 
Posts: 168
Joined: Fri Nov 06, 2009 1:56 pm
Location: London UK

Re: Voodoo lunati cams?

Postby wyrmrider » Sun Mar 17, 2013 10:40 am

post up your intake and exhaust flows or get them from the AFR website
before I go further lots of things can change how much extra exhaust you need IIF ANY (or less)
exhaust, headers, rocker ratios blower, turbo, etc
consider the whole system
but bottom line is the AFR intake/ exhaust ration may be better than stock
or the heads flow so well that too much intake flows out the exhaust (which would also affect your LCA choice)
or to control reversion
let us know what you find out
and thanks for bringing this up
one more thing to be considered :)
wyrmrider
Guru
Guru
 
Posts: 2616
Joined: Thu Jan 10, 2013 10:52 pm

Re: Voodoo lunati cams?

Postby Walter R. Malik » Sun Mar 17, 2013 10:43 am

wyrmrider wrote:I was hoping that you would hear from UDHAROLD
he could tell if these are latest technology or oldy moldy profiles
I noticed that Lunati did not have special profiles for Chryslers so I stopped looking.


Yes they do have specially designated VooDoo profiles for a .904" diameter lifter.

BUT, the OP has a Chevrolet.
Walter R. Malik
Guru
Guru
 
Posts: 1359
Joined: Tue Jul 24, 2012 10:15 am
Location: Roseville, Michigan (just north of Detroit)

Re: Voodoo lunati cams?

Postby bigjoe1 » Sun Mar 17, 2013 11:06 am

It is NOT true that the AFR heads doi not like a big duration split. I use 10 to 15 deghrees manmy times, and as much as 20 degrees on some very serious rac e engines. The stronger the horsepower and the higher the engine will rev has the most to do with the extra exhaust duration. I always run a much more severe injmtake lobe than the exhaust lobe.. This can also have a very large effect


JOE SHERMAN RACING
bigjoe1
Show Guest
Show Guest
 
Posts: 5200
Joined: Thu Aug 24, 2006 7:16 pm
Location: santa ana calif-92703

Re: Voodoo lunati cams?

Postby Sky rocket » Sun Mar 17, 2013 12:08 pm

wyrmrider wrote:post up your intake and exhaust flows or get them from the AFR website
before I go further lots of things can change how much extra exhaust you need IIF ANY (or less)
exhaust, headers, rocker ratios blower, turbo, etc
consider the whole system
but bottom line is the AFR intake/ exhaust ration may be better than stock
or the heads flow so well that too much intake flows out the exhaust (which would also affect your LCA choice)
or to control reversion
let us know what you find out
and thanks for bringing this up
one more thing to be considered :)


I have already posted up the flow rates for the intake ports above. I don't have the exh numbers.

Why would you use a fix pattern cam then ie 230/230?
388ci with TWM EFI injection,Bowtie block 4.125 bore,callies crank 3.625 stroke,scat 6' Hbeams,JE piston, 236/244 on 112 solid roller cam,Comp rev kit,Jessel belt drive,AFR heads 227cc,yella terra shaft rockers.
536hp 6,300rpm/505lbft 5,100 rpm
Sky rocket
Member
Member
 
Posts: 168
Joined: Fri Nov 06, 2009 1:56 pm
Location: London UK

Re: Voodoo lunati cams?

Postby Crepitus » Sun Mar 17, 2013 12:49 pm

0.2 148 114
0.3 210 162
0.4 261 204
0.5 296 220
0.55 304 225
0.6 312 229
0.65 315 233
0.7 318 237
these numbers are for the 227 race readys. I am interested in the split discussion myself. This is about the deepest public think tank on the planet. If somebody asked for my GFs phone #...besides I like my cars better anyway.
Rember when racing was dangrous and sexx was safe?
Crepitus
New Member
New Member
 
Posts: 44
Joined: Tue Apr 03, 2012 2:09 pm
Location: Central WA 2 hours from n e where

Next

Return to Engine Tech

Who is online

Users browsing this forum: allencr267, Bing [Bot], gvx, Majestic-12 [Bot], Strosek Ultra and 14 guests