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proxlamus©

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    Choosing a camshaft.. and how to match a turbo

    in Turbo / Supercharger

    Posted

    Ok new updated list to compare everything side by side

     

    Z-gad developed his grind with a noticeable performance boost

    Intake 490 lift 276 duration Lift

    Exhaust 480 lift 266 duration

    114* lobe center

    44* overlap

     

    Elgin Cam

    Intake 480 lift 266 duration

    Exhuast 480 lift 266 duration

    112* lobe center

    48* overlap

    intake open was 21 degrees@50 and exhaust I believe if memory serves me correctly 72 degrees.

     

    Isky cam

    Intake 580 lift 290 duration

    Exhuast 540 lift 270 duration

    Lobe Center 114*

    Overlap 55*

     

    MSA Stage I (Schneider)

    Intake .460 lift 260 durations lift

    Exhuast .440 lift 250 duration

     

     

    MSA Stage II (Schneider)

    Intake .460 lift 270 durations lift

    Exhuast .460 lift 260 duration

     

    Schneider Stage III

    Intake 488 lift 284 duration

    Exhuast 488 lift 270 duration

    Lobe 114

     

    RaceTep

    Intake 480 lift 272 duration

    Exhuast 480 lift 274 exhuast

     

     

    All of the cam's are very similar except a few minor changes in lift and duration and lobe center ..

    EXCEPT the Isky cam.. every cam ranges around 480 lift... then the Isky is 540!?! holy freakn crap...

     

    Jeff can you please describe the driving characteristics on that Isky cam?! too me and available cams.. the Isky sounds wicked.. definatly

    Choosing a camshaft.. and how to match a turbo

    in Turbo / Supercharger

    Posted

    well holy cow...

     

    TEP may not be the best!

     

    Ok.. i'm going Zgad's grind.. its dyno proven and everyone has had success except for the small batch of mis-grinds ;)

     

    haha thank you guys..

     

    JeffP.. your specs are definatly wild! That 2nd cam sounds radical?!

     

    Maybe I should specify this car is a daily driver.. so would Zgad's or the Elgin be right up my way? or would the wild cam setup from Isky be too much for a daily driver?

     

     

    The second cam is an Isky part, this cam is a little more radical, and I would not recommend going past this specification for any turbo L28.

    55 degrees of overlap, .580 lift intake/ .540 lift exhaust lobe center 114, intake opens 31 BTDC exhaust opens 67 ATDC 290 duration intake 270 duration exhaust.

    Those two grinds will do just about whatever anyone with a turbo could want. The Elgin cam works very well, the Isky cam is really good, but it more of a topend cam.

    Holy freakn Colorado BLIZZARD!

    in Non Tech Board

    Posted

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    METAR text: KAPA 202253Z 33027G34KT 1/4SM +SN BLSN FZFG OVC002 M06/M07 A2985 RMK AO2 PK WND 34034/2245 SLP154 SNINCR 1/9 P0007 T10561067 $

    Conditions at: KAPA (DENVER/ARAPAHOE, CO, US) observed 2253 UTC 20 December 2006

    Temperature: -5.6°C (22°F)

    Dewpoint: -6.7°C (20°F) [RH = 92%]

    Pressure (altimeter): 29.85 inches Hg (1010.9 mb)

    [sea-level pressure: 1015.4 mb]

    Winds: from the NNW (330 degrees) at 31 MPH (27 knots; 14.0 m/s)

    gusting to 39 MPH (34 knots; 17.7 m/s)

    Visibility: 0.25 miles (0.40 km)

    Ceiling: 200 feet AGL

    Clouds: overcast cloud deck at 200 feet AGL

    Weather: BLSN FZFG +SN (blowing snow, freezing fog, heavy snow)

     

     

     

    Hurmm.. several feet of snow.. Denver International Airport Closed.. 10,000 people left stranded... malls and buisness's closed..

     

    nothing big

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