1.6 rr
On The Tree
Joined: Sep 2010
Posts: 121
Likes: 0
From: Tucson, AZ
you can do it on a stock engine, its defenetly smart because it causes less wear on the valvetrain and if you go with aluminum they are lighter than the stock ones, I've heard that with a good tune you can get 10 rwhp, but I've never seen the printout
i would suggest its basically adding lift to your cam without changing not much and less friction better oiling and higher rpm and less floating but remember to get a harden pushrod with new rollers coms are cheap only like 33 bucks worth it if interested im selling 1.6rr crane golds and pushrods cheap let me know there in the part classified
Holy newbies!
1.6 rockers provide many benefits, far more than just the obvious performance gains (15hp+ is not uncommon with supporting modifications, especially headers + exhaust). They can drastically reduce oil temperatures and lower oil foaming. There are a few things to clear up though.
Hardened pushrods are only needed if you are planning on running guideplates with a non self-aligning rocker arm. A NSA setup uses guideplates bolted under the rocker studs to align the pushrod and rocker arm. This is the setup of choice for higher RPM/power applications as they tend to be more stable than their self-aligning counterparts.
Self-aligning rockers are the simplest to install - just bolt them on and go, no guideplates or hardened pushrods necessary. Stock and LT4 rockers are of the self-aligning type, and use small fingers under the rocker tip to keep it centered over the valve stem. While these are good for budget stockish and mild cam setups, an NSA setup will always prevail in terms of stability and reliability for a marginally higher cost.
You should NEVER run 1.6 rockers with stock valve springs. Many will claim they have done it without a problem, but assuming a .030" clearance from max lift to coil bind (which is pushing it - ideal is .050" for maximum performance) you are dangerously close. Investing in decent valve springs is much cheaper than replacing an eyebrowed piston.
1.6 rockers provide many benefits, far more than just the obvious performance gains (15hp+ is not uncommon with supporting modifications, especially headers + exhaust). They can drastically reduce oil temperatures and lower oil foaming. There are a few things to clear up though.
Hardened pushrods are only needed if you are planning on running guideplates with a non self-aligning rocker arm. A NSA setup uses guideplates bolted under the rocker studs to align the pushrod and rocker arm. This is the setup of choice for higher RPM/power applications as they tend to be more stable than their self-aligning counterparts.
Self-aligning rockers are the simplest to install - just bolt them on and go, no guideplates or hardened pushrods necessary. Stock and LT4 rockers are of the self-aligning type, and use small fingers under the rocker tip to keep it centered over the valve stem. While these are good for budget stockish and mild cam setups, an NSA setup will always prevail in terms of stability and reliability for a marginally higher cost.
You should NEVER run 1.6 rockers with stock valve springs. Many will claim they have done it without a problem, but assuming a .030" clearance from max lift to coil bind (which is pushing it - ideal is .050" for maximum performance) you are dangerously close. Investing in decent valve springs is much cheaper than replacing an eyebrowed piston.
I've had 1.6rr's on my stock motor for very close to two years now and an easy 10k miles, ok, well maybe not an easy (on the motor) 10k, and no issues so far. Did notice a big difference in how the motor sounds, and a little bit more pull on the top end.
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sorry about the newb question but im learning haha
i read the whole cam changing guide and read all that about rockers and such and when getting a different larger cam its good to change that
Whats good brands to go with ? as im not looking for a radical set up at all i wanna get mild cam eventually and some heads eventually. as far as like internals of motors go idk whats good and i been trying to read alot and figure out whats good. What is a good brand for rr's? and springs?
i read the whole cam changing guide and read all that about rockers and such and when getting a different larger cam its good to change that
Whats good brands to go with ? as im not looking for a radical set up at all i wanna get mild cam eventually and some heads eventually. as far as like internals of motors go idk whats good and i been trying to read alot and figure out whats good. What is a good brand for rr's? and springs?
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sorry about the newb question but im learning haha
i read the whole cam changing guide and read all that about rockers and such and when getting a different larger cam its good to change that
whats good brands to go with ? As im not looking for a radical set up at all i wanna get mild cam eventually and some heads eventually. As far as like internals of motors go idk whats good and i been trying to read alot and figure out whats good. What is a good brand for rr's? And springs?
i read the whole cam changing guide and read all that about rockers and such and when getting a different larger cam its good to change that
whats good brands to go with ? As im not looking for a radical set up at all i wanna get mild cam eventually and some heads eventually. As far as like internals of motors go idk whats good and i been trying to read alot and figure out whats good. What is a good brand for rr's? And springs?
Launching!
Joined: Oct 2010
Posts: 298
Likes: 0
those vette guys are so smart.
From what ive heard also the 10-15hp gain is also on top a gain going from stock 1.5 rockers to 1.5 roller rockers. I have no clue if its true or not. a 15hp gain at the rear wheels indicated that the crank horsepower has changed quite a bit.
From what ive heard also the 10-15hp gain is also on top a gain going from stock 1.5 rockers to 1.5 roller rockers. I have no clue if its true or not. a 15hp gain at the rear wheels indicated that the crank horsepower has changed quite a bit.
I'm with him! 