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Author
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Topic: All this talk about lash...
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MrWesson22
Gearhead Posts: 1209
From: Dacula, GA
Registered: Sep 2000
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posted 01-09-2003 11:25 PM
   
has got me thinking (and that's a dangerous proposition!). Where should my lash be set on this cam for optimum reliable performance?282/288 244/252 108LSA .590/.600 It's a comp cams xtreme energy solid flat tappet (custom). Any thoughts?
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Neal 69 Gulfstream Aqua Grande
351C/4sp
https://mustangsandmore.com/ubb/MrWesson22.html
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Moneymaker
Administrator Posts: 19704
From: Lyons, IL, USA
Registered: May 99
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posted 01-09-2003 11:35 PM
About .030 accross is where I would start.------------------
Alex Denysenko
Co-Administrator and Moderator NHRA/IHRA/SRA member and licensed Superstock driver
MCA member# 53321
NHRA and IHRA SS/LA National Record Holder '00,'01,'02,&'03
Fleet of FoMoCo products including 88 ASC McLaren Mustang #28
Professional Manwhore
The Barry of BarrysGrrl Quote #1: "I never met a magazine mechanic I liked."
Quote #2: "Make sure brain is in gear before engaging mouth!"
Quote #3: "If you can't run with the big dogs, stay on the porch!"
www.moneymakerracing.com
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Ryan Wilke
Gearhead Posts: 1501
From: Stanton, Michigan 49707
Registered: Oct 2000
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posted 01-10-2003 08:46 AM
Originally posted by Moneymaker (on different thread): "I would not recommend running over .035 lash on your cam Blue..." Hey Alex, What would you say I could safely extend the lash on MY solid-lifter cam? UltraDyne says to run the cold lash @ .026"; hot @ .028"... other specs: @ .050, 252/260 dur; max lift .586/.608; 106* lobe sep. Using Crane #11746-16 (1.6, 3/8" stud) roller rockers w/polylocs; on 306" eng w/4-spd & 4.56 gears. Thanks! Ryan 
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Moneymaker
Administrator Posts: 19704
From: Lyons, IL, USA
Registered: May 99
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posted 01-10-2003 10:55 AM
.010 to .012  ------------------
Alex Denysenko
Co-Administrator and Moderator NHRA/IHRA/SRA member and licensed Superstock driver
MCA member# 53321
NHRA and IHRA SS/LA National Record Holder '00,'01,'02,&'03
Fleet of FoMoCo products including 88 ASC McLaren Mustang #28
Professional Manwhore
The Barry of BarrysGrrl Quote #1: "I never met a magazine mechanic I liked."
Quote #2: "Make sure brain is in gear before engaging mouth!"
Quote #3: "If you can't run with the big dogs, stay on the porch!"
www.moneymakerracing.com
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Ryan Wilke
Gearhead Posts: 1501
From: Stanton, Michigan 49707
Registered: Oct 2000
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posted 01-10-2003 11:11 AM
Thanks, Alex! Ryan
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MrWesson22
Gearhead Posts: 1209
From: Dacula, GA
Registered: Sep 2000
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posted 01-10-2003 11:12 AM
Cool. I've got it at .030 int/ext right now. Now I don't have to mess with it. Woohoo!
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Neal 69 Gulfstream Aqua Grande
351C/4sp
https://mustangsandmore.com/ubb/MrWesson22.html
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Moneymaker
Administrator Posts: 19704
From: Lyons, IL, USA
Registered: May 99
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posted 01-10-2003 11:20 AM
But Neal, that would not inhibit me from playing around. I would try .035 next time you have the valve covers off.------------------
Alex Denysenko
Co-Administrator and Moderator NHRA/IHRA/SRA member and licensed Superstock driver
MCA member# 53321
NHRA and IHRA SS/LA National Record Holder '00,'01,'02,&'03
Fleet of FoMoCo products including 88 ASC McLaren Mustang #28
Professional Manwhore
The Barry of BarrysGrrl Quote #1: "I never met a magazine mechanic I liked."
Quote #2: "Make sure brain is in gear before engaging mouth!"
Quote #3: "If you can't run with the big dogs, stay on the porch!"
www.moneymakerracing.com
IP: Logged |
kid vishus
Gearhead Posts: 4538
From: middle of NC
Registered: Oct 2000
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posted 01-10-2003 11:37 AM
All this talk about loose lash has me thinking UH-OH.  So I have a question, actually a couple. The questions are based on if I opened my lash up from the card recommended .026/.028 hot to something like .040 (they are set at .024 right now trying to kill some bottom end and get more mph). Wouldn't opening the lash up too much cause the car to be inconsistant due to the lifter not being launched off the lobe the same all the time? I could see how it would make it faster, but that surely isnt something for a weekend bracket racer to try (more for an all out heads up race maybe?). Also, wouldnt that get hard on the camshaft and lifters after a relatively short period of time. I'm just wondering. It seems like the lifter leaving the lobe and the subseguant re-contact would be real hard on stuff pretty quickly. Espeically with a roller cam as I was under the impression that the needle bearings in the lifters are fairly fragile and dont like to be bounced on the cam, or sudden impacts. Am I way out in left field on this one? 
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n2oMike
Gearhead Posts: 1547
From: Spencer, WV
Registered: Jan 2001
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posted 01-10-2003 01:39 PM
quote:
Originally posted by kid vishus:
Wouldn't opening the lash up too much cause the car to be inconsistant due to the lifter not being launched off the lobe the same all the time? I could see how it would make it faster, but that surely isnt something for a weekend bracket racer to try (more for an all out heads up race maybe?). Also, wouldnt that get hard on the camshaft and lifters
Again, read this... https://mustangsandmore.com/ubb/Forum12/HTML/002954.html It should answer your questions. Good Luck! ------------------
Mike Burch
66 mustang real street
302 4-speed 289 heads
10.63 @ 129.3
http://www.geocities.com/carbedstangs/cmml_mburch.html
http://www.fortunecity.com/silverstone/healey/367
http://www.mustangworks.com/cgi-bin/moi-display.cgi?220
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kid vishus
Gearhead Posts: 4538
From: middle of NC
Registered: Oct 2000
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posted 01-10-2003 01:56 PM
OHHHHH!I remember reading that the first time around. 
Thanks Mike.
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