i have a 99 gtp i plan on doing full headers soon and im going to be doing the valve cover gaskets since im already there should i put in a higher ratio rocker? is it worth it or just useless i will not be caming this engine
This is a discussion on rockers yay or nay? within the General Tech Discussion forums, part of the W Body Tech category; i have a 99 gtp i plan on doing full headers soon and im going to be doing the valve ...
i have a 99 gtp i plan on doing full headers soon and im going to be doing the valve cover gaskets since im already there should i put in a higher ratio rocker? is it worth it or just useless i will not be caming this engine
99 GTP - Open Cone, ZZP STB ,GMPP Front & Rear Sway Bar, 3" DP & Cat-Back, Built Trans, 12'' Brakes, Tune
http://www.grandprixforums.net/gtp-t...ack-67489.html
04 SRT4 - Bone Stock....For Now
yay
If you're not going the cam route.. Then sure.. Do 1.9s.
It's not gonna net you all that much though. A weeee bit more top end... But not much.
enough to warrant the minimally invasive surgery yes.
if not planning on throwing a stupid cam, sure. if not planning on modding more, dont.
Rockers and meth.. That would be fun enough.
nay
SMGPFC Member #1
Yes, I was able to tell the difference immediately in the top end after installing 1.9 rockers. Plus it helps lower KR.
98 GTP coupe
3.4 mps,plog,3"dp no cat,1.9 rockers 4" intake,EGR delete,Drilled 180,AL104,TBS removed,Glasspack,Overkill pcm,18",ect... At 5500' elevation
I wish I would have went cam... I hardly notice the diff. But I've rode in cammed cars and it was kinda disappointing.
HP Tuned, Ported SC/TB, 42# Injectors, Intense 3.5/3.4/3.25, SSAC Headers, AEM Wideband, ZZP 1.9 Modified Rockers, LS6 Springs, Manley Retainers, TransGo Shift Kit, Poly Dogbones, KYB GR2's, GMPP Brake and Suspension Upgrades, Springtech Springs.
Rockers are easier to demod.
You win some, lose some and you wreck some. - Dale Earnhardt
86 Chevy MCSS- 5.3/4L80E- RaceCar / 94 Chevy K1500- ECSB 5.7/4L60 4x4- DD Parts Hauler
04 Pontiac GP- Base- Bad Trans Mod / 05 Pontiac GP- GT2- Retired RaceCar/ Garage Queen
"Let's rent a gas station for a photoshoot" -griptape+36
Yay, definitely worth the extra hour or 2 to put them on, and if you ever decide to do a cam they only take an hour or 2 to take off and they don't really lose value.
Rockers...
suck.
1998 Silvermist GT Coupe - All the N/A couldn't help it...
2003 Blue-Black Metallic GTP Sedan - Thrasher'd -- Watch me lose to an '80's Crapbox!!
2010 Victory Red MPG Machine/Framescraper - LOBALT
Need Help Modding Your 3800??? CLICK ME!!!
More air?
Yes. -- If you feel like you can do a cam then do that instead.
I did rockers because my engine isn't getting any younger. (211k)
If your not gonna cam, invest in high ratio rockers
Thuglifesomethingorother just did rockers this weekend. 1.9's. He's thrilled with the difference. Shoot him a pm to ask how he likes them.
If Dave feels 60% throttle is 100%, what does he tell his wife.
Did he do a pulley and headers at the same time too?
I know I did a DP/PEM's at the same time I did 1.84's...and I noticed a difference, but I'm sure everyone would.
1998 Silvermist GT Coupe - All the N/A couldn't help it...
2003 Blue-Black Metallic GTP Sedan - Thrasher'd -- Watch me lose to an '80's Crapbox!!
2010 Victory Red MPG Machine/Framescraper - LOBALT
Need Help Modding Your 3800??? CLICK ME!!!
Didn't notice rockers at all.
Depends on your set up. I was able to get 2* more timing up top from 15-17 with a 3.4 gen5 no IC. I would still my HS1.9s today, with my full size IC if I didn't go cam. I guess it's a hit or miss
Depends on nothing.
I put 1.9's on my car by themselves with a 3.8" stock pulley and it made a hell of a difference. It's like putting only a Gen V on your car. There's a difference.
If Dave feels 60% throttle is 100%, what does he tell his wife.
There is a good difference in the top end and you do make some decent gains more noticeable with pulley drops but if you want to make some serious power don't waste your time and save for the cam. I thought rockers would be good for me, but I'm regretting not doing a cam hence why I will be putting in an xp cam. What's your overall goal for the car?
Sent from my ADR6400L using Tapatalk 2
Bookmarks