| Author |
 Topic  |
|
| |
Current Topic Rating:  | Join the Forum to Rate this Topic at: www.VNCommodore.com Support Forums
|
|
|
driveacarsideways
Fully Licenced
105 Posts
 |
 Posted - 03 Jan 2007 : 8:33:29 PM
|
|
does a new set of rollers fit under the standard rocker covers? i know that with my old V8 i had to get higher rocker covers if i went with rollers
|
don't rush me, I get paid by the hour |
|
Report to Moderator |
|
|
mouce
National Driver
1525 Posts
|
Posted - 03 Jan 2007 : 9:36:59 PM
|
First up: I'm glad you're loving the forum, glad to see that your reading through a whole stack of the old threads but...(you knew there'd be one right?)...if the thread hasn't had any posts in it for 3 months or more, consider it dead and burried. Don't be afraid to start up a new thread if you've got a question. Especially one like this.
Okay...a standard ratio set of roller rockers will fit under the original rocker covers, and I believe anything upto the yella terra 1.6:1 rollers will fit under there (check this before you try it out though), anything higher than 1.6:1 (such as the 1.9:1 set) will require either spacers under the rocker cover gaskets or modified rocker covers.
I BELIEVE that there's a company in SA that manufactures higher rocker covers and has them in a chrome finish for the Buick V6, however last I saw those was more than a year ago, they may not still exist. Google is your friend. |
Bite off more than you can chew, and chew like hell - Peter Brock (1945-2006) |
Report to Moderator  |
|
|
driveacarsideways
Fully Licenced
105 Posts
|
Posted - 04 Jan 2007 : 7:40:55 PM
|
the VS superchared V6 comes with 1.65 and there is a mob that has a 1.9 ratio that fits under the standard rocker cover.
1. Are the rocker covers interchangeable?
2. Are the rockers themselves interchangeable?
|
don't rush me, I get paid by the hour |
| Report to Moderator |
|
|
mouce
National Driver
1525 Posts
|
Posted - 04 Jan 2007 : 9:58:27 PM
|
Nope, very different. The VS ran the ecotec engine, we are fortunate enough to run the Buick V6. Not many parts are interchangable between the two (and even then I'm only talking about things like ignition leads).
|
Bite off more than you can chew, and chew like hell - Peter Brock (1945-2006) |
| Report to Moderator |
|
|
MILD50
Fully Licenced
850 Posts
|
Posted - 06 Jan 2007 : 3:15:17 PM
|
| I've got Yella Terra 1.6:1 roller rockers under standard 5.9litre rocker covers without a drama. |
| Report to Moderator |
|
|
VNSVLE
Forum Moderator
1316 Posts
|
Posted - 07 Jan 2007 : 01:38:10 AM
|
| 5.9litre rocker covers?? what you talkin bout?? |
What's the difference between understeer and oversteer?
Understeer is when the driver is scared.
Oversteer is when the passenger is scared. |
| Report to Moderator |
|
|
trizo
Forum Moderator
3091 Posts
|
Posted - 07 Jan 2007 : 3:01:31 PM
|
| hmmmm sounds like standard 5.7 ltr covers!!!!! |
3 can keep a secret if 2 are dead |
| Report to Moderator |
|
|
MILD50
Fully Licenced
850 Posts
|
Posted - 09 Jan 2007 : 1:40:38 PM
|
Looks more like a typo ;)
5.0litre rocker covers... |
| Report to Moderator |
|
|
trizo
Forum Moderator
3091 Posts
|
Posted - 09 Jan 2007 : 7:35:07 PM
|
| lol good 2 c we got that all cleared up ! ;) |
3 can keep a secret if 2 are dead |
| Report to Moderator |
|
|
driveacarsideways
Fully Licenced
105 Posts
|
Posted - 09 Jan 2007 : 7:41:51 PM
|
| I've seen a set on 1.72:1 for $730. Opinions on how they will run. Will the memcal NEED to be remapped or will it still run as standard? The only other mod inplemented at the minute is pod filter. And i'm working on performance extractors and V8 t/b. |
don't rush me, I get paid by the hour |
| Report to Moderator |
|
|
trizo
Forum Moderator
3091 Posts
|
Posted - 09 Jan 2007 : 7:59:59 PM
|
hey m8 I'll post this link have a look it may be able 2 help u a bit!
www.yellaterra.com [/url] hope this help you all!!
|
3 can keep a secret if 2 are dead |
Edited by - trizo on 09 Jan 2007 8:01:10 PM |
| Report to Moderator |
|
|
driveacarsideways
Fully Licenced
105 Posts
|
Posted - 09 Jan 2007 : 8:17:11 PM
|
| Thanks, I tried it but that website is under developement at the moment. I find there products to be very expensive too. I'm not ready to get them yet still looking around. But thats the best i've come across so far and they will fit. |
don't rush me, I get paid by the hour |
| Report to Moderator |
|
|
trizo
Forum Moderator
3091 Posts
|
Posted - 10 Jan 2007 : 9:17:49 PM
|
it's just a thought let us all know what u decide 2 do!
|
3 can keep a secret if 2 are dead |
| Report to Moderator |
|
|
driveacarsideways
Fully Licenced
105 Posts
|
Posted - 13 Jan 2007 : 3:29:36 PM
|
| VPW have advertised a set of 1.72 yella terra roller rockers for a little under $600. I think this may be the way to go. but first i want to get the exhaust finished. |
don't rush me, I get paid by the hour |
| Report to Moderator |
|
|
Bostik
P Plater
63 Posts
|
Posted - 13 Jan 2007 : 6:05:25 PM
|
| Dont bother going adjustable if your running a hyd cam. You can save lots of cash this way. But if your gona change cam to a solid type in the future then i would go adjustable. The price difference in $ between these types of rockers is huge! |
| Report to Moderator |
|
|
driveacarsideways
Fully Licenced
105 Posts
|
Posted - 14 Jan 2007 : 9:20:44 PM
|
| Non-ajustable are a lot cheaper but doesn't that mean a soon as there is a little wear they will be noise as #$%% and nothing i can do about it? |
don't rush me, I get paid by the hour |
| Report to Moderator |
|
|
Bostik
P Plater
63 Posts
|
Posted - 20 Jan 2007 : 3:56:32 PM
|
| Youl be surprised how many years it can take before the motor starts to tick. Its usually the rods that pack it in rather than the roller tips. You can buy new rods or buy lash caps to stop some ticks. Theres a few other little tricks you can do to. If you look after your motor there shouldnt be a problem at all. |
Edited by - Bostik on 20 Jan 2007 4:02:50 PM |
| Report to Moderator |
|
|
driveacarsideways
Fully Licenced
105 Posts
|
Posted - 20 Jan 2007 : 8:15:34 PM
|
Fair point Bostik, the non adjustable were a lot cheaper and it would mean i could put them in earlier. I have also considered just holding off on all future mods and just plan an doing a full engine conversoin...don't know. too many options..lol. Thanks for the tips guys
|
don't rush me, I get paid by the hour |
| Report to Moderator |
|
|
MILD50
Fully Licenced
850 Posts
|
Posted - 21 Jan 2007 : 12:49:25 AM
|
| You could get away with street terra if it isn't a high revver... save even more cash. |
| Report to Moderator |
|
|
driveacarsideways
Fully Licenced
105 Posts
|
Posted - 22 Jan 2007 : 10:10:18 PM
|
| i've heard they tend to break? has anyone used them? |
don't rush me, I get paid by the hour |
| Report to Moderator |
|
|
trizo
Forum Moderator
3091 Posts
|
Posted - 23 Jan 2007 : 9:47:16 PM
|
| snap sanp snap!!!!! ouch more$$$$$ |
3 can keep a secret if 2 are dead |
| Report to Moderator |
|
|
MILD50
Fully Licenced
850 Posts
|
Posted - 24 Jan 2007 : 10:54:53 PM
|
You just have to make sure you're not too high revving- I forget the suggested limit but its on the site.
I've only heard of them breaking if they are abused- come to think of it, I've never heard of a broken rocker arm on all but the most extreme apps. I believe the suggested rev limit for the roller rockers is higher than the factory limiter anyway- provided the factory limiter is still there of course. |
Edited by - MILD50 on 24 Jan 2007 11:04:41 PM |
| Report to Moderator |
|
|
trizo
Forum Moderator
3091 Posts
|
Posted - 24 Jan 2007 : 10:57:06 PM
|
| did u forget the vn loves to rev!!! sorta takin the fun out a bit hey! |
3 can keep a secret if 2 are dead |
| Report to Moderator |
|
|
Bostik
P Plater
63 Posts
|
Posted - 27 Jan 2007 : 3:04:04 PM
|
| On a standard motor with bolt ons i would be very surprised if anything broke! Maybe if you had a higher lift cam and firmer valve springs and had it on the limiter then yea maybe :) Just keep the oil up there then it should be fine! |
| Report to Moderator |
|
|
mouce
National Driver
1525 Posts
|
Posted - 27 Jan 2007 : 10:59:28 PM
|
The factory limiter (for the AFTX code chip, you'll learn about the codes in the 'how-to' that's coming) starts leaning off the fuel at 4990.05RPM, and will not supply enough fuel to rev past 5401.32RPM.
Officially the advertised rev limiter is set to about 5500rpm, and it will normally get there. BUT it's possible to rev it slightly past the factory chip limits. Most will normally get to somewhere about 5600-5700rpm.
But on engines that are now coming up on 18 years old (hell...mine's past that already), I wouldn't recommend much more than 5000rpm. Mine feels like it hits a wall at 4500rpm, valve bounce sucks.  |
Bite off more than you can chew, and chew like hell - Peter Brock (1945-2006) |
| Report to Moderator |
|
| |
Topic |
|
Topic Locked
