I have a couple cams that I would like yalls help with. My motor is a 383 lt1 with a procharger putting out 15#'s of boost. And a 3.73 gears with an automatic. I need help choosing one of these cams let me know which ones yall think would be the best choice: Thanks
1. crane cams- part number#104241 here the link to the specs.
http://cranecams.com/index.php?show=...41&lvl=2&prt=5

2. comp cams- part number# 07-467-8 heres the link to the specs
http://store.summitracing.com/partde...8&autoview=sku

3. Lunati cams- part number# 54756
http://www.lunaticams.com/Product.aspx?id=2008

4 Lastly Heres the one i think would be the best-
Comp cams Custom grind- Heres the specs-
SPEC CARD

PART #: 07-000-8 ENGINE: LT1/LT4

GRINDING INSTRUCTIONS 1 SMALL BASE CIRCLE

"" "" 2

"" "" 3

GRIND #: LT1 3316S /3170S HR113.0

SPC INST 1:

SPC INST 2:

J. DIAM: STD INT EXH

VALVE ADJUSTMENT HYD HYD

GROSS VALVE LIFT .520 .541

DURATION @ .006

TAPPET LIFT 287 315

VALVE TIMING OPEN CLOSE

@ .050 INT 10 46

EXH 62 6

SPECS FOR CAM INST. @ 108.0 CENTERLINE

INT EXH

DURATION @ .050 236.00 248.00

LOBE LIFT .347 .361

LOBE SEPARATION 113.0 FIRING ORDER STD

ROCKER ARM RATIO 1.50 1.50 REQ SHIP DATE

 

Race car, daily driver, weekend warrior? Weight of car, stall converter, tire size? Cam selection can go one way or the other based off what its going into and being used for. Personally I would call Crane Cam's help line and give them all the info they need, they will recommend a ball park figure for what you want. When I built my motor I just went with what they recommended and it worked great, free to call and happy to help.

 

Sounds kinda like like my combo but im turbo...comp spec'd and built mine.

230/236
.544/.555 1.6RR
114LSA

Jay

 

Its just gonna be a bad street car but it will see some strip time. Its the stock weight. Thinking about a 2800 stall. I called crane but they stuck me with a #104241, to me that just dont sound like it would work right in my motor.

 

My app... 97ss 383ci FI M6/ 3.73:1 moser with ATI D1 and AFR heads. The AFR rev-kit really helps valve control. About 14psi thru Spearco IC with hard pipe intake set-up. Running a Cam Motion cam reccomended thru the app web site.
Specs...
Durr... 231/240 @ 0.050: lift/ .538"- .560 lift/ 110* InTake CL/ 114 lsa. Basic rpm spec is 3500 to 6800 rpm. This was my 4th cam install. I prefer the high rpm and with my pulley ratio of 7.6--> 3.4" pd, and a head unit ratio of 4.44:1, the blower will top out @ 65000 rpm @ the cam top limit (right where I wanted it). Hope this helps. B.

 

I would think a 114 LSA would be better in a blown app, especially for a street car, and I'm assuming you're not worried about emissions where you live. Blower cars don't like a lot of valve overlap, unless you're planning on running at or near WOT most of the time.

 

Should have also added, I don't like either the Crane (too small) or the Lunati (too much overlap), but if you want to go with an off-the-shelf grind the Comp looks closer than the other two for what you want

 

I'll be glad to help if you answer these questions. However, I would not rely on phone tech support from a big cam company.

Rich