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roller rockers 

 

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 Post subject: roller rockers
Posted: Wed Apr 27, 2011 11:21 pm 
Getting Side Ways
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Ride: 02 xls ute 347

Location: adelaide
SA, Australia

what brand of roller rockers are people running ive checked out a few and they all rave on how there the best
is it worth putting the 1.7 ratio in stock gt40 p heads ??

DSM Performance $about 200 new, crane $350 new and yella terra 600 new :| are some of the brands of checked out

 

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 Post subject: Re: roller rockers
Posted: Thu Apr 28, 2011 12:04 am 
Getting Side Ways
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Location: Sydney Australia
NSW, Australia

My first set were Trickflow 1.7s
My current Motor has Comp Platinum series 1.6's, as i was worried about piston to valve clearance.

My trickflows were sourced here in AUS, and cost me a pretty close to 600. My comps cost me 550 US plus postage but i got a lot of stuff with them so postage was a lot cheaper.

Brett

 

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 Post subject: Re: roller rockers
Posted: Thu Apr 28, 2011 2:08 pm 
Stock as a Rock
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Location: Melbourne
VIC, Australia

yeh roller rockers are good upgrade from pressed rockers. Main benifits is usually from a 1.72/1.7 rocker will give you higher lift specs with a stock cam = more power. Many companies claim 10-30hp gain depending on combo. Though using 1.72/1.7 rockers with after market cam and stock pistons may have issues with piston to valve clearance.

Also roller rockers are alot stronger and can handle a bit higher rpm work as opposed to standard rockers. Less friction and weight in the valvetrain the better but it costs $$.
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 Post subject: Re: roller rockers
Posted: Thu Apr 28, 2011 4:28 pm 
Getting Side Ways
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I run Yella Terra roller rockers and from personal experience, YT have treated me well in regards to backup / support when buying stuff from them as retail sale.

 

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 Post subject: Re: roller rockers
Posted: Thu Apr 28, 2011 5:59 pm 
Getting Side Ways
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Remember, you get what you pay for. DSM sounds like a chinese knock-off brand (I could be wrong). IMO it's best to stick with the name brand parts - they may cost more, but that pays for better quality control and more R&D in the future. I have run both Crane & Yella Terra, and they are both good. Although Yella Terra has had some trouble with soft push-rod cups in some of their rocker arms back in the early 2000's.

Just make sure you purchase the right type of mounting - bolt-on pedistal is good for strong street engines, stud-mount (3/8 or 7/16") is required for more heavy duty applications. The Yella Terra shaft systems are a really good idea and very strong.

 

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 Post subject: Re: roller rockers
Posted: Thu Apr 28, 2011 11:22 pm 
Getting Side Ways
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Age: 27

Posts: 1323

Joined: 12th Nov 2006

Gallery: 9 images

Ride: 02 xls ute 347

Location: adelaide
SA, Australia

is it a straght swap with crane 1.7 roller rockers with mine
so do i bolt mine off and put the 1.7s straight on ?

would it be worth me gettin my cappa flash tuner tuned again to suit the rockers?

 

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 Post subject: Re: roller rockers
Posted: Sun May 01, 2011 10:50 pm 
Tyre Shredder
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Joined: 9th Nov 2004

Ride: EB XR8

Location: brisbane south
QLD, Australia

TerroristGHIA wrote:
My current Motor has Comp Platinum series 1.6's, as i was worried about piston to valve clearance
Brett



Comp platinums??? No such thing

Comp makes pro magnum/ultra pro magnum, hitech,

Platinum is a YT branding

Please correct me if I'm wrong

 

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 Post subject: Re: roller rockers
Posted: Sun May 01, 2011 11:57 pm 
Getting Side Ways
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Age: 46

Posts: 3763

Joined: 25th Nov 2004

Gallery: 6 images

Ride: EFII 5.8 NOS TerroristGhia

Power: 274 rwkw

Location: Sydney Australia
NSW, Australia

My mistake,Ultra Golds are what i have

Here is the link
http://www.summitracing.com/parts/CCA-19043-16/


Brett

 

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The Terrorist ED Retired due to RUST.
The TerrosistGhia, EF Ghia 351 EFI 5 Speed.
Millennium Falcon, Sleeper EL DOHC 6 Speed Manual EFI LPG
Member#1131
I didn't Vote for Multiculturalism, DID YOU!!!

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 Post subject: Re: roller rockers
Posted: Mon May 02, 2011 12:04 am 
Getting Side Ways
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Age: 46

Posts: 3763

Joined: 25th Nov 2004

Gallery: 6 images

Ride: EFII 5.8 NOS TerroristGhia

Power: 274 rwkw

Location: Sydney Australia
NSW, Australia

And as it states in the Summit link, less than 300, Gees i must have been of when i posted those.

Brett

 

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The Terrorist ED Retired due to RUST.
The TerrosistGhia, EF Ghia 351 EFI 5 Speed.
Millennium Falcon, Sleeper EL DOHC 6 Speed Manual EFI LPG
Member#1131
I didn't Vote for Multiculturalism, DID YOU!!!

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