New 3rd Gen Rockers going in - Page 3 - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


2000-2005 Discuss your 2000-2005 Bonneville SE, SLE, and SSEi Please use General Chat for non-mechanical issues, and Performance and Brainstorming for improvements.

Reply
 
 
 
Thread Tools Search this Thread
Old 01-04-2004, 08:54 PM   #21
Senior Member
True Car Nut
Thread Starter
 
Join Date: Jul 2003
Location: Westerville, Ohio 2000 Black SSEi
Posts: 6,127
Thanks: 0
Thanked 0 Times in 0 Posts
Rogue is on a distinguished road
Default

Quote:
Originally Posted by TaylorD
Very cool and WAY GELOUS!!! So sounded like you said Scott personally installed these? The way you described the gains is what I'm looking for, I want some more on the highend. The lowend can't hook up as it is.
Yes, there is a lot more pull in the upper end. Here is a pic of Scott working on the 8-Ball...



Quote:
Definitly looking forward to your dyno day. You lucky dog.
Yep, me too....

Quote:
Question, what is the advantage of having adjustable rockers? I understand with a Cam such as 1x or VS that you want stock lift of 1.6 right?, so what'* to adjust? Maybe get 1.65 or something?
I think the adustables will go from 1:90 to 1:60 so you can run 1:90 then when you get a cam drop them to 1:60? I'm not sure on that exact point. I'll have to ask. I'm sure one of the gear heads will throw in here.

Quote:
So you said Oil restricted with stock lifters, and lightweight ones with better lifters, I take it the lightweight setup is the more recomend path if you want to do it all? I've been reading some rocker problems on club GP with people who only but rockers in and nothing else, bending lifters and stuff.
Well, these are the first 3rd gens out (in fact I have the first set) so it will remain to be seen how these fair but they are made by the best roller rocker manufacture on the planet so I am only expecting good things.

Quote:
And finally, I'm gelous!!!! One more thing, when you getting a custom DHP, probably with the cam ehh? Just curious, why did you get these rockers when you have plans on getting a cam soon?
I will probably move to a cam when the 1.60'* are ready and will do a pcm then. By then i think I will be done with the car engine wise for a while. Still want to do the exaust and headers also.

Quote:
Hey, what'* the boost gauge reading now? Pegged at +10psi I'm betting.
It has been to wet here to really tromp on it and be able to watch this. I plan on autotapping it hopefully tommorrow if it dries up. I'm expecting the boost gauge to drop do to the better breathing of the engine, so probably back to 7 or 8 from 10-11 it was at.
Rogue is offline   Reply With Quote
Old 01-04-2004, 10:11 PM   #22
Senior Member
Certified GM nut
 
Join Date: Jul 2003
Location: Chicagoland
Posts: 1,712
Thanks: 0
Thanked 0 Times in 0 Posts
TaylorD is on a distinguished road
Default

The first set, you don't say. That'* neat that Scott did them personaly, he has a week spot for bonnevilles. Hope for some good weather tomarrow, I wanna here the report after another day of driving.

Quick story- I got into a little highway race the other day against a 95-98 STS and we were rolling along at 65 or so and we go, start pulling away form him untill 85- had almost a car length on him and than he creeped up and past me at 110. Got love the northstars highend, now that I've had that, I don't want this to happen again against any fellow Norhtstar'ers I might encounter in the future. Thinking some 1.9 Rockers and Headers should take care of my problem. Side note, caddy STS rated 14.7 in quarter mile, me at the track with bad traction, same 14.7.

Gotta get my income tax refund soon, then hello mods.
TaylorD is offline   Reply With Quote
Old 01-04-2004, 11:32 PM   #23
Senior Member
True Car Nut
 
Join Date: May 2003
Location: Holt, MI & Lima, OH
Posts: 3,022
Thanks: 0
Thanked 0 Times in 0 Posts
dbtk2 is on a distinguished road
Default

Quote:
So you said Oil restricted with stock lifters, and lightweight ones with better lifters, I take it the lightweight setup is the more recomend path if you want to do it all? I've been reading some rocker problems on club GP with people who only but rockers in and nothing else, bending lifters and stuff.
You definately want the oil restricted pushrods with the stock lifters because it helps the lifter stay pumped up, without them you have more of a chance of getting valve float. The lightweight are just like the stock ones (the hole in the middle the same size to allow the same amount of oil through) except they are lighter and stronger, so they don't do much to help valve float.

You definately want to do the OR pushrods and stronger valve springs when you do rockers, because as you have been reading, now that the 1.9 rockers have been out for a few years, problems with people bending lifters and breaking valvesprings are starting to show up because the stock valvetrain just isn't strong enough to handle the 1.9 rockers. So if you do rockers you want to go with the OR pushrods and 85lb. valvesprings (which I think they changed to 90lbs recently) to strengthen up your valvetrain and to allow you to rev it to 6200rpm or so. We left the valvetrain stock in the SSEi because it has the stock PCM and will probably forever, so it will never rev over 5800rpms (where all of the problems occur), and almost never revs over 5500rpms, so the stock valvetrain is enough because it doesn't have to handle the stresses of the high revs.

Quote:
Hey, what'* the boost gauge reading now? Pegged at +10psi I'm betting.
I don't know what it was reading already, I am betting around 11-12psi, but it should drop 1-2psi with rockers (because the engine can breathe easier). When we put rockers in the SSEi it dropped to 10.7psi boost from ~12psi. So his boost gauge isn't going to be reading any higher thats for sure.

Quote:
Quick story- I got into a little highway race the other day against a 95-98 STS and we were rolling along at 65 or so and we go, start pulling away form him untill 85- had almost a car length on him and than he creeped up and past me at 110.
I don't know what your problem is...I completely blew away a Deville DTS on the highway a few months ago...oh yeah, I was driving the GTP...I forgot. (He was pissed too!) Seriously though, those Northstars do have some good topend, but I definately think rockers and headers (along with a smaller pulley) should definately fix the top-end problem.

Shawn
dbtk2 is offline   Reply With Quote
Old 01-05-2004, 01:20 AM   #24
Junior Member
 
Join Date: Jun 2002
Posts: 0
Thanks: 0
Thanked 0 Times in 0 Posts
2000SilverBullet is on a distinguished road
Default

Quote:
I think the adustables will go from 1:90 to 1:60 so you can run 1:90 then when you get a cam drop them to 1:60? I'm not sure on that exact point. I'll have to ask. I'm sure one of the gear heads will throw in here.
When they say adjustable, I though they meant for clearance not ratio.
2000SilverBullet is offline   Reply With Quote
Old 01-05-2004, 11:35 PM   #25
Senior Member
True Car Nut
 
Join Date: May 2003
Location: Holt, MI & Lima, OH
Posts: 3,022
Thanks: 0
Thanked 0 Times in 0 Posts
dbtk2 is on a distinguished road
Default

I'm pretty sure silverbullet is correct on that one. They aren't adjustable for ratio, and I don't know that there is even any way to do that. (at least not and make it last 100,000 miles) I am pretty sure they are adjustable for clearance and geometry purposes.

Shawn
dbtk2 is offline   Reply With Quote
Old 01-06-2004, 12:00 AM   #26
Senior Member
Certified GM nut
 
Join Date: Jul 2003
Location: Chicagoland
Posts: 1,712
Thanks: 0
Thanked 0 Times in 0 Posts
TaylorD is on a distinguished road
Default

I don't get it either, but what is there clearance problems with? adding different covers on? or what?
TaylorD is offline   Reply With Quote
Old 01-06-2004, 12:52 AM   #27
Junior Member
 
Join Date: Jun 2002
Posts: 0
Thanks: 0
Thanked 0 Times in 0 Posts
2000SilverBullet is on a distinguished road
Default

Adjustable rockers can compensate for valvetrain and cam wear by the ability to increase or decrease the valve lash. Usually by loosening the retaining bolt and screwing it up or down then locking it in place with a locknut.
The stock Bonne rockers are not adjustable.......just like the old Oldsmobile rockers. The only way to adjust is to change pushrod length.....or change worn parts.
Non adjustablility = lower maintenance requirements.
If anyone has run with solid lifters, you know what I mean.
2000SilverBullet is offline   Reply With Quote
Old 01-06-2004, 06:21 PM   #28
Executed
 
Join Date: Aug 2002
Location: Purgatory
Posts: 0
Thanks: 0
Thanked 0 Times in 0 Posts
BadSSEi is on a distinguished road
Default

Our Third Gen rocker arm kits arrived today and all pre-orders have now been shipped. Everyone who pre-ordered already has a tracking number is his email too.

No special tools are required for installation with the exception of a 1/4" male hex driver and a torque wrench. Simply torque the rocker arm bolts to 25 foot-pounds and the valve cover bolts to 89 inch-pounds.

Enjoy!

Scott
BadSSEi is offline   Reply With Quote
Old 01-06-2004, 06:22 PM   #29
Senior Member
Posts like a Northstar
 
Join Date: Nov 2003
Posts: 560
Thanks: 0
Thanked 0 Times in 0 Posts
mikey is on a distinguished road
Default

there red too!

red=more hp
mikey is offline   Reply With Quote
Old 01-07-2004, 12:11 AM   #30
Senior Member
True Car Nut
Thread Starter
 
Join Date: Jul 2003
Location: Westerville, Ohio 2000 Black SSEi
Posts: 6,127
Thanks: 0
Thanked 0 Times in 0 Posts
Rogue is on a distinguished road
Default

Quote:
Originally Posted by mikey
there red too!

red=more hp
Yep, if they were black it would be twice as much....
Rogue is offline   Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
T-56 Trans in 3rd Gen Nova FiretoFlames Performance, Brainstorming & Tuning 2 03-01-2012 09:00 AM
PICS!! Ported GEN III M90 until spring, then ported GEN V OLBlueEyesBonne Forced Induction 20 10-13-2006 03:55 AM
What's a GEN V got over a GEN III M62? OLBlueEyesBonne Forced Induction 5 06-13-2006 01:01 AM
Anyone know 3rd gen Z28s?? ChaseSmith Lounge 11 11-21-2005 01:30 PM
Better off with ported gen 3 or regular gen V m90? chadow427 Performance, Brainstorming & Tuning 5 09-08-2005 01:30 AM


Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off



All times are GMT -4. The time now is 04:33 PM.


We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.