I am looking for opinions on high ratio rockers for my l67 3800sc engine swap. I read in another post that roller rockers were not as good as the stock rockers. I was looking at the Yella Terra 1.8 ratio roller rockers, or a set of stock rockers modified to 1.9 ratio. I am looking for some performance upgrades without doing a cam.
Does anyone have any feedback from either of these rocker sets?
I am looking for opinions on high ratio rockers for my l67 3800sc engine swap. I read in another post that roller rockers were not as good as the stock rockers. I was looking at the Yella Terra 1.8 ratio roller rockers, or a set of stock rockers modified to 1.9 ratio. I am looking for some performance upgrades without doing a cam.
Does anyone have any feedback from either of these rocker sets?
The modded 1.9 rockers are the best ones out there. Along with those you'll need, at the least, LS1 90# valve springs with modded retainers. There is a very noticeable improvement in power. One of the best mods you can do for cheap.
The modded 1.9 rockers are the best ones out there. Along with those you'll need, at the least, LS1 90# valve springs with modded retainers. There is a very noticeable improvement in power. One of the best mods you can do for cheap.
Where to u get the modded retainers and 90# valve springs ?
So what's it take to mod the stock rockers to a 1.9 ratio?
ZZP is the only one who makes these. They are very popular and pop up for sale all the time if you want to save some money. Keep an eye out on the the Clubgp forum and others.
The rockers won't have an effect on gas mileage but your right foot will. ------------------ Turbo3800E85F23 5spd spec5 10.91@133.1
[This message has been edited by Justinbart (edited 04-10-2014).]
It would cost you quite a bit less to just pull the cam and have a shop grind a little more lift and duration into it. Also puts less stress on the cam and lifters. Larry
It would cost you quite a bit less to just pull the cam and have a shop grind a little more lift and duration into it. Also puts less stress on the cam and lifters. Larry
I am not doing a cam because I don't want a "cammed" engine sound or idle. I am putting this engine into a replica lambo and that sound doesn't fit the car at all.
You can make the cam do exactly what the rocker arms do, the sound would be identical as would the movement of the valves. All the rocker arm mod does is cause the cam to act like it has slightly more duration, overlap and lift. I think having a V-6 sound anything remotely like a Lambo sounds will be a streach. Larry
[This message has been edited by trotterlg (edited 04-10-2014).]
I am not doing a cam because I don't want a "cammed" engine sound or idle. I am putting this engine into a replica lambo and that sound doesn't fit the car at all.
3800 exhaust is bland at best. If you are really trying to get that kind of sound out of a 6cyl then maybe a VR6 swap or some kind of straight 6 swap.
------------------ 86 Fiero GT 4spd - L67 swap: VS cam, GenV 98 GTP - Some mods
[This message has been edited by sco77 (edited 04-10-2014).]
I am not doing a cam because I don't want a "cammed" engine sound or idle. I am putting this engine into a replica lambo and that sound doesn't fit the car at all.
Sound and 3800 Fiero is usually is something bad and raspy. What you want is a Turbo (to change the sound not muffle it) and :