pushrod length
Thread Starter
Racer
Joined: Mar 2003
Posts: 457
Likes: 0
From: albany ny
pushrod length
My question is this, Itmay be a stupid Q but i do not know the answer so i will ask it anyway. Will the wrong pushrod length effect the lift of the cam. I had my Trick Flow heads milled and changed cam along with 1.6 rockers, and was told to check pushrod length. I did this but the car just seems to be missing some power. Thanks for any help or responses. JOHN :troll
[Modified by ITSovr4U, 6:27 PM 11/16/2003]
[Modified by ITSovr4U, 6:27 PM 11/16/2003]
Racer
Joined: Sep 2003
Posts: 420
Likes: 1
From: Indianapolis IN
Re: pushrod length (ITSovr4U)
From what I understand the wrong pushrod length will affect valve lift and the effective cam lift and duration. It does this by changing the effective rocker arm ratio.
Drifting
Joined: Jan 2002
Posts: 1,645
Likes: 11
From: Schaumburg IL
Re: pushrod length (blunsford)
You bet it changes the geometry of the valve train. Get a copy of the January 2004 issue of Car Craft. Very good article on settting push rod length
PS - If you can't get a copy, email me and I will scan it in and send it to you.
PS - If you can't get a copy, email me and I will scan it in and send it to you.
Le Mans Master
Joined: Oct 2002
Posts: 7,098
Likes: 378
From: Las Vegas - Just stop perpetuating myths please.
Re: pushrod length (ITSovr4U)
:yesnod: I found my old post by a search in the archives. Try: Pushrod Length?? (82zoom). It also addresses head changes too. Now I wrote/emailed both Manley and Proform to inquire about the 1.6 rocker issue with their tools. But no response. I don’t see much difference in geometry with 1.6 and my contact pattern looks okay by eyeball verification.
This is a good thing to measure every time you change heads, head gaskets, mill head, mill block, even camshaft and lifters. The wrong pushrod length puts side loads on valve stems and will ruin guides fast (valves too.) :seeya
This is a good thing to measure every time you change heads, head gaskets, mill head, mill block, even camshaft and lifters. The wrong pushrod length puts side loads on valve stems and will ruin guides fast (valves too.) :seeya
