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Author Topic:   Rocker Arms
FOX
Dirt Full Roller

Total posts: 28
posted June 07, 2005 05:55 PM  
`im running 1.6 rocker arms allthe way around
lacking a little power coming out of the corners,if i went to a 1.5 rocker would that help create more low end power.TY

iowatoolman
Dirt Freak

Total posts: 369
posted June 07, 2005 11:12 PM  
if your lacking power out of the corners and have 1.6 rockers all the way around it sounds like you have the wrong cam try calling a cam manufacturer to find out the proper cam for what you need or try getting your gear ratio in the power band


drive hard or drive home

FOX
Dirt Full Roller

Total posts: 28
posted June 08, 2005 05:39 AM  
Just changed cam last week ,i put the isky 201288 450 lift in the ,i just didnt advance it any,was told 1.5 rockers would help it more on the bottom end.

97dirt
Dirt Forum Racer

Total posts: 94
posted June 08, 2005 07:20 AM  
What size track are you running? I've used that same cam before on a 3/8 mi. It wouldn't get going until halfway down the straightaway,either put alot of gear in it,or step down one size to the 201278,( I even advanced it 6 deg. and could not make it come off the corner)

sc1 racing
Dirt Freak

Total posts: 419
posted June 10, 2005 11:47 AM  
put 1.5 on the intakes, and leave the 1.6 on the exhaust

Footlead
Dirt Roller

Total posts: 24
posted June 10, 2005 07:34 PM  
If you have a heavy car that is one LARGE camshaft. Tons of duration @.050. It works on the higher RPM side. Got to have lots of compression in the motor or lots of gear for it to work. The 201278 is probably the better cam selection for your combonation.

Footlead
Dirt Roller

Total posts: 24
posted June 10, 2005 07:38 PM  
Put the 1.6 on the INTAKE ,,,1.5 on the exhaust.
I have researched this with several cam grinders and they all say that most people say put the 1.6 on the exhaust. The cam grinders say do the opposite,,,put the 1.6 on the INTAKE especially with a low compression open chambered head motor.

FOX
Dirt Full Roller

Total posts: 28
posted June 14, 2005 05:36 AM  
how much difference will i se by going 1.5 an 1.6

sc1 racing
Dirt Freak

Total posts: 419
posted June 14, 2005 11:57 PM  
not enough to feel but if someone films the race you will see it..good luck..

im not going to argue on here but try them both ways..that way you can choose the best that you think works for you..

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