Fordmods Logo

Which Roller Rockers for 5L EB 

 

Page 1 of 2 [ 16 posts ] Go to page 1, 2  Next

 
 Post subject: Which Roller Rockers for 5L EB
Posted: Fri Oct 07, 2005 11:20 am 
Getting Side Ways
Offline
User avatar

Age: 38

Posts: 896

Joined: 3rd May 2005

Gallery: 18 images

Ride: Blueprint EB II Fairmont 5L

Location: Wanneroo
WA, Australia

g'day lads. Just wana know wat roller rockers are good for the EB..i know theres different ones like adjustable and non-adjustble, and theres different numbers as well (what do they mean??) Just want some opinions on what the best ones are & why...Thanks
Top
 Profile  
 
 
Posted: Fri Oct 07, 2005 1:56 pm 
Getting Side Ways
Offline
User avatar

Age: 45

Posts: 1440

Joined: 7th Nov 2004

Ride: 320kw BA XR8

Location: Adelaide
SA, Australia

Yella Terra or Crane make some nice, reasonably priced direct bolt on rockers for the 5L. There are adjustable and non-adjustable ones available but witht he adjustable nes you need taller rocker covers and IMO probably don't offer all that much over non-adjustables. The main thing is the rocker ratio, and that is primarily determined by the cam. Standard rocker ratio is 1.6 but 1.72's are also available if you want some extra lift.
Top
 Profile  
 
 
Posted: Fri Oct 07, 2005 10:11 pm 
Getting Side Ways
Offline
User avatar

Age: 71

Posts: 3555

Joined: 7th Nov 2004

Gallery: 4 images

Power: 482 rwkw

Location: Penrith
NSW, Australia

Yep as fitted to Tickfords...
http://www.yellaterra.com.au/stealth.php
.

 

_________________

As in ZOOM 126 edition
331 Dart block,3.25/ 4340 steel crank, Oliver rods,TFS ported track heat heads, TFS track heat inlet Twin SC61 turbo's
Project 1UZ-EF has started.. S475 Turbo 4.0 V8 Mustang Celica.....

Top
 Profile  
 
 
Posted: Fri Oct 07, 2005 10:40 pm 
Getting Side Ways
Offline
User avatar

Age: 38

Posts: 896

Joined: 3rd May 2005

Gallery: 18 images

Ride: Blueprint EB II Fairmont 5L

Location: Wanneroo
WA, Australia

would you recommend the hydralic or adjustable ones?? and should i go for the 1.72??
Top
 Profile  
 
 
Posted: Fri Oct 07, 2005 10:46 pm 
Getting Side Ways
Offline
User avatar

Age: 45

Posts: 1440

Joined: 7th Nov 2004

Ride: 320kw BA XR8

Location: Adelaide
SA, Australia

The standard non-adjustable ones are fine. The 1.72's should be fine too, do you have a stock cam, if not what are the cam specs?
Top
 Profile  
 
 
Posted: Fri Oct 07, 2005 10:49 pm 
Getting Side Ways
Offline
User avatar

Age: 38

Posts: 896

Joined: 3rd May 2005

Gallery: 18 images

Ride: Blueprint EB II Fairmont 5L

Location: Wanneroo
WA, Australia

the cams not stock, but i dont know the specs as i didnt put it in, but its nothing too crazy, but it is a bit lumpy....dont know if that helps u at all... :?
Top
 Profile  
 
 
Posted: Fri Oct 07, 2005 10:55 pm 
Getting Side Ways
Offline
User avatar

Age: 45

Posts: 1440

Joined: 7th Nov 2004

Ride: 320kw BA XR8

Location: Adelaide
SA, Australia

OK sounds like its just a mild cam, in that case the 1.72's should be fine. The Yella Terra ST2027 1.72 rockers are probably the best quality available for the price, so I would just use them.
Top
 Profile  
 
 
Posted: Fri Oct 07, 2005 10:57 pm 
Getting Side Ways
Offline
User avatar

Age: 38

Posts: 896

Joined: 3rd May 2005

Gallery: 18 images

Ride: Blueprint EB II Fairmont 5L

Location: Wanneroo
WA, Australia

what would i be lookin at in way of price??? wat sort of power increase should i expect??
Top
 Profile  
 
 
Posted: Fri Oct 07, 2005 11:05 pm 
Getting Side Ways
Offline
User avatar

Age: 45

Posts: 1440

Joined: 7th Nov 2004

Ride: 320kw BA XR8

Location: Adelaide
SA, Australia

VPW has them for $462 which is probably close to the cheapest around. As for power increase, probably around 10kw.
Top
 Profile  
 
 
Posted: Sat Oct 08, 2005 2:28 am 
Getting Side Ways
Offline

Age: 41

Posts: 409

Joined: 5th Nov 2004

Ride: EL Fairmont

Location: Look at that RICE!!
SA, Australia

I would be hesitant. A 2030 sounds like a very mild cam with bearly a hint of lope at idle, but a 2030 + 1.72's will result in a fair ole whack of lift, somewhere in the order of 590thou. Better make sure your springs are up to the task.

 

_________________

Soo many idiots. So few bullets

Top
 Profile  
 
 
Posted: Sat Oct 08, 2005 2:37 am 
Getting Side Ways
Offline
User avatar

Age: 45

Posts: 1440

Joined: 7th Nov 2004

Ride: 320kw BA XR8

Location: Adelaide
SA, Australia

True its always worth checking the springs and piston/valve clearance with any change to the valvetrain. Hopefully though if they have already fitted a high lift cam, they should have fitted the springs to match, but you never know.
Top
 Profile  
 
 
Posted: Sat Oct 08, 2005 8:47 pm 
Getting Side Ways
Offline
User avatar

Age: 38

Posts: 896

Joined: 3rd May 2005

Gallery: 18 images

Ride: Blueprint EB II Fairmont 5L

Location: Wanneroo
WA, Australia

yeah i recently replaced the spring with heavy duty Crow items (reinforced)...not sure bout the piston/valve clearence though...
Top
 Profile  
 
 
Posted: Tue Oct 11, 2005 6:51 pm 
Getting Side Ways
Offline

Posts: 1162

Joined: 19th Jun 2005

Location: perth sor
WA, Australia

dont go with the 1.72.. if you dont know your cam lift dont risk it.. stay with 1.65.. besides dyno tests have shown almost all the power increase from increased ratio roller rocker upgrades comes from the fact that you're upgrading to a roller rocker, not the additional cam lift.

rollers good. extra ratio dont matter so much. in your case, with a lumpy sounding cam means its got a bit of duration n stuff alteady(and chances are more than enough lift for your heads).. 1.72s not worth it.

 

_________________

current ride: worn out chuck taylors

Top
 Profile  
 
 
Posted: Tue Oct 11, 2005 6:54 pm 
Getting Side Ways
Offline

Posts: 1162

Joined: 19th Jun 2005

Location: perth sor
WA, Australia

and yeh adjustable only worthit if you gettin funky with pushrod length n stuff. otherwise if you usin stock pushrods and cam base(ie the lowest point is same as stock) then theres no point. rocker geometry is a bastard to get rite, so save ya self time/money/hassle-of-getting-taller-rocker-covers and get non adj ones.

hope dat helps :)

 

_________________

current ride: worn out chuck taylors

Top
 Profile  
 
 
Posted: Wed Oct 12, 2005 12:21 pm 
Getting Side Ways
Offline
User avatar

Age: 71

Posts: 3555

Joined: 7th Nov 2004

Gallery: 4 images

Power: 482 rwkw

Location: Penrith
NSW, Australia

You gain approx .030 by going to 1.72 rockers..It depends on your heads? If they can flow at those lifts then its worth it..But GT40P heads don't need much over .500 lift ..Restrictive heads go better with duration, good flowing heads flow with lift as well...Lift gereally isn't an issue with piston to valve clearance, its more to do with timing and valve size... GT40P heads are o/k with 2031 cam with 1.60 rockers..But with 2.02 inlet valve the pistons need notching with AFR heads.. TFS heads [Trick flow] with their higher chambers etc don't generally have the same clearance issues with 2.02 inlets valve clearance...In any case it pays to check..Jusy use old gasget and some model clay, turn engine over...Btw a 2030 or 2031 cam will KILL std springs in no time, the bouncing will stretch valve stems and genereally stuff your whole valve assembly if springs arn't set up correctly...

 

_________________

As in ZOOM 126 edition
331 Dart block,3.25/ 4340 steel crank, Oliver rods,TFS ported track heat heads, TFS track heat inlet Twin SC61 turbo's
Project 1UZ-EF has started.. S475 Turbo 4.0 V8 Mustang Celica.....

Top
 Profile  
 
Display posts from previous:
Sort by  
 Page 1 of 2  [ 16 posts ]  Go to page 1, 2  Next

Who is online

Users browsing this forum: No registered users and 48 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

 

 

It is currently Mon Dec 23, 2024 8:00 pm All times are UTC + 11 hours

 

 

(c)2014 Total Web Solutions Australia - Australian Web Hosting and Domain Names