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 performance rockers for 95 sc?

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Abaddon
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Abaddon

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performance rockers for 95 sc? - Page 2 Empty
PostSubject: Re: performance rockers for 95 sc?   performance rockers for 95 sc? - Page 2 EmptyWed Mar 23, 2011 3:50 pm

Simply changing to roller rockers isn't going to gain you much of anything noticeable. Unless you obtained the rockers for free, and need to change the VC gaskets anyway, don't bother IMO.
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AA
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AA

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performance rockers for 95 sc? - Page 2 Empty
PostSubject: Re: performance rockers for 95 sc?   performance rockers for 95 sc? - Page 2 EmptyWed Mar 23, 2011 3:52 pm

If you use a higher lift ratio roller rocker, it's a noticeable difference. When I installed mine, my only other mods were a gutted air box and a smaller blower pulley.

Low-end power: not much effect in this area. Rockers help push the torque band higher, above 3500RPM. How much depends on other mods. You shouldn't noticeably lose low end torque just by adding roller rockers.

Gas mileage: I've seen exceptional MPG with 1.9:1 rockers on my Series II SC engine. I don't think they really improve the mileage, but they have no negative effect in my experience. Expect to keep your OEM highway economy with rockers, providing you stay out of high RPM!

Reliability: the rockers themselves should last a long, long time. Mine have been installed and daily driven for over 5 years and 140k miles. The engine has 220k miles currently. How it affects the upper valvetrain depends on a lot of things: supporting modes, lift ratio, and driving habits. A 1.8:1 lift ration should be very safe, and the rollers make for smoother valve lifts.


_________________
'98 SC Riviera • 281k miles • 298 HP/370 TQ • 0-60: 5.79s • ET: 13.97 @ 99.28 • 4087 lb • 20.1 avg MPG • Nelson Ledges Lap: 1:30
3.4" pulley • AL104 plugs • 180º t-stat • FWI w/K&N • 1.9:1 rockers • OR pushrods • LS6 valve springs • SLP headers • ZZP fuel rails
KYB GR2 struts • MaxAir shocks • Addco sway bars • UMI bushings • GM STB • Enkei 18" EV5s w/ Dunlop DZ101s • F-body calipers
EBC bluestuff/Hawk HP plus • SS lines • Brembo slotted discs • DHP tuned • Aeroforce • Hidden Hitch

^^^ SOLD ^^^ frown

'05 GTO • 85k miles • 0-60: 4.8s • 16.9 avg MPG • Nelson Ledges Lap: 1:26
Because fun


'70 Olds Ninety-Eight Holiday Coupe • 116k miles • 455 Rocket V8
Because cool


'95 Celica • 152k miles • 0-60: yes
Because free


Last edited by AA on Wed Mar 23, 2011 3:55 pm; edited 1 time in total
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Karma
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Karma

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performance rockers for 95 sc? - Page 2 Empty
PostSubject: Re: performance rockers for 95 sc?   performance rockers for 95 sc? - Page 2 EmptyWed Mar 23, 2011 3:54 pm

Being that you have a 95 SC, here's your answers:

low end power: a little difference, but the real feeling is that it wakes the series one up in the high RPM

gas mileage: in theory any power adder will help fuel milage, BUT only if you keep your foot out of it.

Reliability: anytime you do something performance related you lower the reliability and longevity of the engine.

Is it a good idea?: that depends on how your situation fits with the above answers. The 95 has "semi" roller rockers stock, so your only gain is going to the 1.8 ratio.

The bottom line is this: If the car is just a toy and you have other daily drivers, then mod away. If you depend on it to get you to work everyday, mod with caution.

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RidzRiv
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performance rockers for 95 sc? - Page 2 Empty
PostSubject: Re: performance rockers for 95 sc?   performance rockers for 95 sc? - Page 2 EmptyWed Mar 23, 2011 4:01 pm

So do you guys think it is worth the price on intense, or should i look for another mod that might be more effective and less expensive? It seems like the series one is kind of limited unless you want to really change the internals, and i think a smaller pulley size would be pretty risky with a high mileage engine.
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AA
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AA

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PostSubject: Re: performance rockers for 95 sc?   performance rockers for 95 sc? - Page 2 EmptyWed Mar 23, 2011 4:08 pm

My opinion is you are correct to worry more about increasing boost (pulley) vs. increasing flow (rockers). Increasing flow is one of the safer things you can do to a boosted engine. Add a downpipe to the exhaust, open up the intake, and you should be seeing some extra HP where you need it.

Karma is correct about increasing engine wear with mods. After you mod, you access the HP gain though the gas pedal. When you do this, you stress the engine; the upper valvetrain will be given a workout. A new timing chain and a fresh set of valve springs would be wise investments if you plan to rev above 4k often. Otherwise, our engines are excellent high-mileage work horses, even with a few performance tweaks. Even with 220k+ miles, I have very little fear hitting 6k RPM from time to time (in your case, a 5k ceiling is a good limit).

_________________
'98 SC Riviera • 281k miles • 298 HP/370 TQ • 0-60: 5.79s • ET: 13.97 @ 99.28 • 4087 lb • 20.1 avg MPG • Nelson Ledges Lap: 1:30
3.4" pulley • AL104 plugs • 180º t-stat • FWI w/K&N • 1.9:1 rockers • OR pushrods • LS6 valve springs • SLP headers • ZZP fuel rails
KYB GR2 struts • MaxAir shocks • Addco sway bars • UMI bushings • GM STB • Enkei 18" EV5s w/ Dunlop DZ101s • F-body calipers
EBC bluestuff/Hawk HP plus • SS lines • Brembo slotted discs • DHP tuned • Aeroforce • Hidden Hitch

^^^ SOLD ^^^ frown

'05 GTO • 85k miles • 0-60: 4.8s • 16.9 avg MPG • Nelson Ledges Lap: 1:26
Because fun


'70 Olds Ninety-Eight Holiday Coupe • 116k miles • 455 Rocket V8
Because cool


'95 Celica • 152k miles • 0-60: yes
Because free
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riv416
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performance rockers for 95 sc? - Page 2 Empty
PostSubject: Yella terra performance parts for series one   performance rockers for 95 sc? - Page 2 EmptyWed Jun 29, 2011 8:50 am

Has anyone used there series one products?besides there rockers?they offer a supercharger for the series one along with a intercooler kit sold seperate. Im asking cause ive been wondering if there products fit our 3.8?if so I can save some money and mod my series 1
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robotennis61
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performance rockers for 95 sc? - Page 2 Empty
PostSubject: Re: performance rockers for 95 sc?   performance rockers for 95 sc? - Page 2 EmptyWed Jun 29, 2011 9:30 am

I hear that they work pretty good.
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Karma
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Karma

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performance rockers for 95 sc? - Page 2 Empty
PostSubject: Re: performance rockers for 95 sc?   performance rockers for 95 sc? - Page 2 EmptyWed Jun 29, 2011 9:50 am

riv416 wrote:
they offer a supercharger for the series one along with a intercooler kit sold seperate.

Got a link? The only specifically series one parts they have are the rockers.

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RidzRiv
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PostSubject: Re: performance rockers for 95 sc?   performance rockers for 95 sc? - Page 2 EmptySun Jul 10, 2011 10:48 am

Since roller rockers reduce friction and flow more air, could they reduce KR?
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AA
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AA

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performance rockers for 95 sc? - Page 2 Empty
PostSubject: Re: performance rockers for 95 sc?   performance rockers for 95 sc? - Page 2 EmptySun Jul 10, 2011 12:56 pm

Rockers certainly won't add any KR, and probably reduce it slightly when installed by themselves. In my case I didn't notice any more or less KR with rockers, but I did notice a bit more HP in the higher RPM.

_________________
'98 SC Riviera • 281k miles • 298 HP/370 TQ • 0-60: 5.79s • ET: 13.97 @ 99.28 • 4087 lb • 20.1 avg MPG • Nelson Ledges Lap: 1:30
3.4" pulley • AL104 plugs • 180º t-stat • FWI w/K&N • 1.9:1 rockers • OR pushrods • LS6 valve springs • SLP headers • ZZP fuel rails
KYB GR2 struts • MaxAir shocks • Addco sway bars • UMI bushings • GM STB • Enkei 18" EV5s w/ Dunlop DZ101s • F-body calipers
EBC bluestuff/Hawk HP plus • SS lines • Brembo slotted discs • DHP tuned • Aeroforce • Hidden Hitch

^^^ SOLD ^^^ frown

'05 GTO • 85k miles • 0-60: 4.8s • 16.9 avg MPG • Nelson Ledges Lap: 1:26
Because fun


'70 Olds Ninety-Eight Holiday Coupe • 116k miles • 455 Rocket V8
Because cool


'95 Celica • 152k miles • 0-60: yes
Because free
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http://www.cardomain.com/ride/657082/4
Pipes
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Pipes

Name : Pipes
Age : 36
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performance rockers for 95 sc? - Page 2 Empty
PostSubject: rockers   performance rockers for 95 sc? - Page 2 EmptyMon Mar 26, 2012 2:32 am

im trying to find some rockers for a pair of series 1 heads I know yella terra makes them but where to buy them... Or if you know any one selling them let me know please... bought a pair of heads to ported and polished also a port match or something like that ... Any help would be greatful
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RidzRiv
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RidzRiv

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performance rockers for 95 sc? - Page 2 Empty
PostSubject: Re: performance rockers for 95 sc?   performance rockers for 95 sc? - Page 2 EmptyMon Mar 26, 2012 9:05 am

Intense sells them. There is a link to their site on our forum's main page. They cost about $350. On intense's main page you can choose 3800 and then go to valve train and they are on the last page.
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