#
It is currently Fri Oct 31, 2014 2:51 am


Post a new topicPost a reply Page 1 of 1   [ 4 posts ]
Author Message
 Post subject: engine question..
PostPosted: Wed Mar 13, 2013 5:10 pm 

Joined: Mon Apr 12, 2010 9:49 pm
Posts: 505
Location: snohomish, washington
So I be rebuilding my 2tc. While I'm at it I want to give it a little more all motor power. So I'm thinking of running this cam
http://www.crower.com/camshafts/toyota- ... -7218.html

My question is since I will be taking the head to the machine shop anyways I thought I should be oversized valves put in. The question what size should I go with and also what strength of springs? Cause I know to little can hurt power out put and too big can also..
So any ideas would be awesome.

_________________
77 TE51
86 AE86- need fenders, lights, rear bumper, Hood, seats, interior knobs.


Top
 Profile  
 
 Post subject: Re: engine question..
PostPosted: Thu Mar 14, 2013 5:28 pm 
User avatar

Joined: Wed Mar 21, 2007 11:47 am
Posts: 441
Location: Pac NW
liquid51 wrote:
So I be rebuilding my 2tc. While I'm at it I want to give it a little more all motor power. So I'm thinking of running this cam
http://www.crower.com/camshafts/toyota- ... -7218.html

My question is since I will be taking the head to the machine shop anyways I thought I should be oversized valves put in. The question what size should I go with and also what strength of springs? Cause I know to little can hurt power out put and too big can also..
So any ideas would be awesome.


This is not an extreme cam, a good valve job, a nice clean 3-angle, with a back cut. Oversize valves are not needed, but mild port work would be in order.


A mild compression bump would be beneficial as well.

_________________
Information = POWER


Top
 Profile  
 
 Post subject: Re: engine question..
PostPosted: Mon Mar 18, 2013 4:03 pm 
User avatar

Joined: Wed May 18, 2011 5:09 pm
Posts: 160
Location: Netherlands
Yes, a sharper cam needs some higher CR, skim the head or a thinner headgasket, otherwise the engine is quite dull in lower rev range.
Beware for interference, measure the space between valve and piston with kids clay on top of piston and turn engine in a loose mock up state. About 1.5 to 1mm space should be left.

_________________
Carina TA12, Starlet EP70(sold) and EP71, Mitsubishi Lancer CS9W


Top
 Profile  
 
 Post subject: Re: engine question..
PostPosted: Fri Mar 22, 2013 10:42 pm 

Joined: Mon Apr 12, 2010 9:49 pm
Posts: 505
Location: snohomish, washington
Thanks for the info...I was think of doing the valves and stuff cause I eventually want to do high comp..

_________________
77 TE51
86 AE86- need fenders, lights, rear bumper, Hood, seats, interior knobs.


Top
 Profile  
 
Display posts from previous:  Sort by  
Post a new topicPost a reply Page 1 of 1   [ 4 posts ]


Who is online

Users browsing this forum: Sauco81 and 6 guests


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

Search for:
Jump to:  


Powered by phpBB © 2000, 2002, 2005, 2007 phpBB Group
610nm Style by Daniel St. Jules of Gamexe.net