This is topic E-cam with 1.7's in forum Tech Talk at Northern California Ford Owners  .


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Posted by DropTopFox (Member # 1689) on :
 
Right now I have an E-cam with the stock heads with 1.6 rockers. If I switch to 1.7's what will the lift be on the cam afterwards. Current lift is .498". Thanks in advance.
Ryan
 

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Posted by DropTopFox (Member # 1689) on :
 
oh by the way my guess is .529" I just want to see if I'm calculating this correctly
 

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Posted by stoauto (Member # 2803) on :
 
last time i checked 1.7s add .038 thousanths to your lift, so .498 would be .536, keep the 1.6s.
 

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Posted by FasterDamnit (Member # 442) on :
 
simple math.


.498/1.6 then multiply by 1.7.
 

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Posted by stoauto (Member # 2803) on :
 
cool, well if you calculate that, it is .529 cool, learning something everyday.
 

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Posted by DropTopFox (Member # 1689) on :
 
That's what I figured Jim. I just wanted to make sure. Stoauto why would you say to keep the 1.6's??? Wouldn't more lift be better with such a small cam
 

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Posted by 91 5.0 (Member # 1527) on :
 
I have a set of 1.72 FMS roller rockers for sale in youre interested.
 

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Posted by icon (Member # 949) on :
 
valve train geometry will be all screwed up.leave them,you change rocker ratio when your finding proper length push rods you go up or down on rocker ratio if you dont like the roll pattern of the rocker arm on the valve tip..or change the length..its acctually alot more involved and complicated then what i just stated..im just trying to scare ya
 

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Posted by 66 AC COBRA of CA PERFORMANCE (Member # 904) on :
 
the ecam is not a small cam when u only have ported stock heads, leave the cam in there, just put a better cam in once u have better heads
 

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Posted by xcessive50 (Member # 2995) on :
 
lobe lift x rocker ratio = valve lift.

Note: A more aggresive rocker ratio does'nt always mean better performance just cause you have more lift. If your cam was designed to be used with 1.6,(which i think the E cam was) it might be better to stick with those to keep the whole geometry thing in check.
 

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Posted by BOUNTY HUNTER VERT (Member # 2754) on :
 
back in 95 an e cam with 1.7s was the sheiat e cam 1.7s no seriously though ive seen supercharged cars with the ecam 1.7 combo run in the low low 10s on pump gas
 

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Posted by MR GO FAST (Member # 2088) on :
 

quote:

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Originally posted by BOUNTY HUNTER VERT:
back in 95 an e cam with 1.7s was the sheiat e cam 1.7s no seriously though ive seen supercharged cars with the ecam 1.7 combo run in the low low 10s on pump gas

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I got that...and still cant get out of the 15's

[ August 28, 2003, 01:11 PM: Message edited by: MR GO FAST ]
 

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Posted by BOUNTY HUNTER VERT (Member # 2754) on :
 
My ass ive seen the coupe run remember. Im going to run my j trim initially with the e cam and 1.7s hehe should break the 15s or just plain break but its gonna be a cool vido lol. And the reason you have the e cam 1.7s is you are a old fart like me and have been around these things too long.
 

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Posted by 93PONY (Member # 60) on :
 
If you get 1.7's, sell the E303 for $100 & buy a used B303 for $100. Then install it a few degrees retarded. That'll pull some more power out of those heads.
 

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Posted by MR GO FAST (Member # 2088) on :
 

quote:

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Originally posted by BOUNTY HUNTER VERT:
My ass ive seen the coupe run remember. Im going to run my j trim initially with the e cam and 1.7s hehe should break the 15s or just plain break but its gonna be a cool vido lol. And the reason you have the e cam 1.7s is you are a old fart like me and have been around these things too long.

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Who you callin old.....?????
 

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Posted by MR GO FAST (Member # 2088) on :
 

quote:

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Originally posted by 93PONY:
If you get 1.7's, sell the E303 for $100 & buy a used B303 for $100. Then install it a few degrees retarded. That'll pull some more power out of those heads.

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quote:

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Originally posted by MR GO FAST:

quote:

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Originally posted by 93PONY:
If you get 1.7's, sell the E303 for $100 & buy a used B303 for $100. Then install it a few degrees retarded. That'll pull some more power out of those heads.

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smogable?

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Yes actually.
 

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Posted by BOUNTY HUNTER VERT (Member # 2754) on :
 
most cams will pass smog it is just a matter of getting the tech to believe that you have a carb eo number for it
 

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