1.7, 1.8, 1.9 Ratio Rockers for a Series 1
 

How many would be intrested in 1.7, 1.8, 1.9 ratio rockers for a Series 1? How much would you be willing to pay? Which ratio would you want to run?

Sorry not alot about them now but if their seems to be intrest for them I can go into more detail.

I'm looking into rockers right now....but I need to make sure they're gonna work with what I wanna do...

What's the stock ratio?

For more people you may want to get in touch with some ser1 L67 swap fiero guys. There are also a few ser1 L67s on L67swap.com. If they did that much work to put that motor in there chances are good they would do rockers.

They measure at a little less then 1.6's but are commonly called 1.6's.

Ok.....So with a cam....what could I do?

It depends on many factors - lift of cam, stock or modified heads, etc. You need to calculate peak lift. What cam are you looking at and what are the specs?

Valve Timing:
Intake: 22*/64*
Exhaust: 70*/20*

Duration (seat to seat):
Intake: 265*
Exhaust: 270*

Duration (0.075")
Intake: 201*
Exhaust: 206*

Valve Lift:
Intake: .440"
Exhaust: .440"

Power Range: 1800-6000 rpm

Blazin, is this a 'known' source, a bypass of the middle man for a known source, or a new source for us?

Watching this topic with interest. It's either a cam or rockers for me next, and my cam was going to be custom.

I would like to see what you would come up with for cam numbers Bill...

Eh those cams... With 1.7 rockers you will have a lift of .467", with 1.8 rockers you will have a lift of .495". I think that Jay is runnig that cam with 1.72 rockers.

Yea I'm not a fan of those cam grinds. It seems to me that they are not setup the best for a supercharged car.

I thought that rockers would be best for most people here just because they can be cheep, installed in a very short time with simple tools, and tuning is really not needed. It would give the person that has done the 'basic' bolt ons another 'bolt on' to do.

As far as the rockers their are a few options and really depends on what people are willing to pay, if they want to upgrade their springs/retainers, if they are going to pay more for pushrods, etc. Some options are full roller either steel or aluminum, steel non roller, and modified steel. To get the full roller and non roller to work with our setup requires a few other parts that drives up the cost.

Honnestly right now I was looking at the cheepest rockers and easiest ones to install thinking that more people would be willing to run them. With them stock springs/retainers/pushrods would be fine and valve cover spacer are not needed. Basically a true 'bolt on'.

This is all that are intrested? Maybe 2? and we haven't even discussed price yet? :roll: Oh well worse comes to worse I'll be running a set. ;)

post has been up for 7 hours :roll:



:lol:

Give it a few days....

Blazin', I'm not a fan of the L27 cams at S1Performance either. That's why I was thinking of going custom.

I'll watch this. Curious to see how the pricing comes in.

I am very curious as well. keeping an eye on this.

watching topic, for when i get serious with my Series one

Possibly interested....Depends on the price and if they'll work for my 91 Buick Regal with the N/A series I.

I am intersted in the future too! I am not 100% sure what it would entail for me too, since I have the older valvetrain aswell.

<----- '92 heads here! ;) Rockers will work for both

More info? (prices, options, performance gains, ordering time frame, etc) Or are we waiting for more people first, before we get too deep?

I'd like to see how many would be intrested, what they would like in a rocker, how much they would be willing to spend, etc. Once I know that I can see what direction I want to take this.

I am looking at a price of up to $350 with roller tips and a little wieght saving?

Roller tip rockers are not really needed for 99.9% of the Series 1 croud.

1.) Modified will be alot cheaper then roller rockers.
2.) Modified will not need stronger springs and new retainers.
3.) Because they do not need stronger springs and new retainers the install will be easier and cheaper. (If springs need to be changed they will only have to be replaced by new stockers.)
4.) Because they don't need stronger springs they will cause less strain on the timing chain and dampner. (I think this is a big + since alot of the series 1's have a 'few' miles on them.)
5.) 99.9% of the series 1 cars don't make power with high shift points so their is no advantage with roller rockers and stronger springs. Even if the series 1's could make power with higher shift points 99.9% of they wouldn't have a way of shifting higher.

Because of these reasons I think modified would be our best bet. I'm sure I could get modified series 1 rockers made for less then $300 as long as people show they will buy them.

What about for us who have the older designed rockers? Would just modifying them be enough? (I heared that the design is less efficient and less reliable?)

Don't worry about it - It's simple to upgrade your valvetrain to the '93+ valvetrain.

Really!!! :D Awsome! :P

Woohoo

What ratio are we looking at? With what you're saying those of us with higher mileage (135k here) should be able to keep the rest of our valvetrain stock? I had to replaced a bunch of parts when I had to replace my "cam interrupter" (magnet) so I do have a brand new timing chain and dampner, I'd just be worried about the old springs. What is this upgrading to the 93+ valvetrain? What are we looking at for performance gains? I know my NA will probably be less than your SC numbers, but some general idea. Lastly, are there any "needed" mods, what I have is in the sig. And soon a 180* stat. All sounds great so far!!

No other series 1's would even think of rockers? If this is the case I'm just going to get a set for me.

I would think that with a little more information you could draw more attention. I mean who wouldn't want a set of rockers?? For most people it's probably a cost thing. Something like cost and performance gains should be stated. Without a rough estimate of either of those I thinks it's hard for some people to be interested or really give it much thought.

Is there a way you could post something on car domain? That could attract a few more customers and maybe RegalGS.org in the pre-1997 Regals...or I could do it for you. How many people do you need to get some more informantion, we should have around 5 (counting yourself) and if people knew the cost wasn't going to be as high as the $400 set up from seriesoneperformance.com maybe they might join the bandwagon. Just my .02

That is the part about it... Price is going to be based off of quanity. I know modified rockers are not going to be anywhere near $400 if you have a good amount of people. With a good amount of people I could see getting them done for like $250-$300.

As far as performance gains I know of only one person running 1.9's so I can't really state gains. I would guess that if you had little to no KR you would be able to drop a pulley size and if you had KR it would get rid of that. As far as HP I would have to guess 15-20 WHP. These are all guesses though.

I really didn't want to alot of recruting for this esp. since I'm not looking to make any money off of this. I'm just looking at getting a set made for myself and figured that if more people jumped on the bandwagon that they could have 1.9 rockers too while lowering everyones cost to have them made.

Here is another problem... cores. For those that want to get this done you are going to have to send in your rockers or find another set of rockers to send in.

Maybe I'll just bite the bullet and pay out of my ass for 2 sets of rockers for my car and Ryan's and then try to market them to recupe the extra money I had to put in to just make two set for the first batch.

I may be interested in something that I can bolt on for an improvement that would work on a stock motor with maybe a smaller pulley in the distant future. It all depends on how well they improve the series 1 compared to stock. I don't know a ton about these newer motors am more of an old school type of guy. I built my Ranchero originally with 1.7 rockers and had to step down to the factory 1.6 Even with GT-40P heads! I was :shock: that the motor pulled tons better with the 1.6's and a smaller 600cfm universal Holley than 1.7's and a 650 Demon double pumper. That was an expensive lesson learned :cry: . Let me know what you come up with.