Hey guys, Just wanted to wright up a small review and let you know my thoughts on the Powell YYZ V2 springs and Spherical control arm bushings.

I'll start with the CAB's

Install was pretty easy, the arms came off the car a bit easier than I thought they would, and sure enough, my stock bushings were torn. While I had them off I decided to clean the arms up a bit with a sanding block. Not sure why I did but I did.


Bushings in.


Ready to be installed


Right away I noticed a difference in slow acceleration out of my neighborhood. Before the car would sometimes "buck" and cause a chain reaction of hitting the gas and letting off. The acceleration is now smooth and the bucking is non existent!

I also noticed my steering felt tighter, like the slightest input would get a bigger reaction than before. and surprisingly, there was no added road noise or NVH to speak of.

So far I love them and would rate them a 10/10



Now onto the YYZ springs..

Due to the complaints I have heard from others about the springs clapping together, I decided to shoot a few coats of plastidip on them to prevent any sound coming from them. (this is very common with aftermarket springs so it wasn't a big deal to me..)

I started the install on the rear and once I got my stock springs out, and began installing the YYZ springs, I noticed a big problem that sent a bunch of alarms off in my head. I did read on post from Powell about opening up the eyes on the spring for easier installation on the isolator, but this is ridiculous...

Notice the quarter inch gap between the spring eye and the bump stop/isolator?



This is not the kind of fitment I had expected and I am very disappointed.. I have installed MANY sets of springs and have NEVER had a set not fit in the isolators loosely like this. I would rather them be overly tight like Pedders than have this kind of play.. Powell said it shouldn't be a problem as the springs are always under tension, but I am not buying it.. Whats to keep the spring from sitting off from one side to another and tilting?

Here are a few pics showing the differences on the eyes between the YYZ's and the stock springs.

STOCK 1 7/8 opening


YYZ V2 2 1/8" opening



The rear springs on my coilovers were larger than the stock isolator also, but they came with small rubber isolators to fill the gap and prevent any play. I was not going to just install such a poor fitting spring on my car and hope for the best, so I thought about it for a while and came up with a pretty ghetto solution, but its working so far. I have some thick almost tar like tape but is very ridged and wrapped the isolators with it until I got a snug fit on the spring eyes. Then hit it with a little black duct tape to cover the shiny tape.


Ghetto fix I know, but my only other option would have been to send them back on my dime and wait who knows how long until they fixed the issue and got my springs back to me. "aint nobody got time for dat!"

Anyway, got the springs on, and the rest of the install went accordingly.

Went for a test drive, and I definitely like the way they ride. Similar to stock, but definitely feel better and took away a bit of the wheel gap.

Here is a pic of the car as it sits now.
275/40/17 Nitto Nt555r dragradials up front, 255/40/17 BFK KDW2 in the rear.


Overall, I would still recommend them, but IMO the isolator should be corrected (and has been addressed). So I give these springs a rating of 9/10


:UPDATE:
After many responses confirming that the isolator is not an issue, I have changed my rating on the YYZ springs to a 9/10

I was able to test the springs this past weekend at a local SCCA autoX event and was able to beat a long time competitor of mine in his STI! We are usually within about a half a second of each other, but this time I beat him by about half a second! The car felt great! Solid, planted, not bouncy at all and transitions in the solemn felt much better!

Overall, I am really liking these springs so far. I am glad to see everyone verifying that the isolator issue is not a problem. It really alleviates my concerns, so I don't think I am going to bother with getting new ones.

Thanks for the fine race products John!

 

Like the info of CAB's and sub for the springs

 

have u talked to them at all about the springs? and what have they said in return? besides they SHOULD be ok....cuz i was thinking of getting them lol. sort of need a little drop with a stiffer spring.

 

I've had cabs and derlin bushings for years....on my shelf. Need to throw them in. Glad to see they help

I've been waiting on the springs. Hope they figure it all out.

Thanks for the reviews.

 

how much were the bushings? I never can find a price on their site

 

are you really rally racing your car to the point that the springs could fall out? come on...

 

John quoted me $199 for the CAB's I believe.

 

Cobe, here is the pricing for you

https://www.cobaltss.net/forums/gene...powell-296456/


When I put my v2's in my first thought was "holy crap, this was so much easier than the Pedders were, thanks John!." I doubt the springs move enough to worry over, if at all, and they sure as hell are not going to fall out. I'm not inclined to worry about it.

 

Thank you Sox

 

Great review

 

Click

 

we will see if your springs fall out because i highly doubt it..... ive ran his springs on a road coarse at much higher speeds then you will see with no issues and a compleyely spherical jointed twisting beam which will have a lot more movement then yours will.........

 

OBZ I agree the v.2 were opened up to make it easier to install the isolators. Which it is now -very easy. I have installed many v.2 and no complaints.

About springs falling out. If the spring falls out, then two things would have to happen. I. the shock would have to break. 2. If the shock broke, the spring would fall out, and the isolators would not stop that from happening. The springs are guaranteed not to lose rate or break, and the only other way rear springs can fall out , is if they lose rate and collapse. With YYZ, that aintgonnahappen.com, and I guarantee that.

OUr current production run (v.3?) will have the spring ends tightened up. I sent isolators to Hyperco to make sure of the installation. When they are ready next month ( we are about out of the v.2 and v.1 sold out a long time ago) I will exchange the rear springs for you no charge save for freight.

BUT I am looking for you to identify an issue with the isolator fitment regardless. If there is no issue ( and for sure the spring wont fall out, see my comment above) then I am just exchanging things to make you 100% satisfied, not because there is a problem.

 

Very well said John, I figured there would be a reasoning behind all that, no way powell made that rookie mistake lol. Was gonna order v2 but guess ill wait for the v3 to come out and get ride of my eibach springs.

 

Obviously I am not worried about them falling out.. I am worried about them not sitting correctly and making noise and possibly being inconsistent. There is a reason every other spring I have ever installed have been a snug fit, if not they have provided some sort of isolator to keep them in place. Also they are called ISOLATORS for a reason, to ISOLATE the spring!

Have you heard any noise from the rear springs at all? I wasn't so worried about it moving around on the top (bump stop) isolator with the rubber pad as the lower plastic isolator which could easily slide around.

Overall I am still happy with them, but like I said, paying the premium price of 370+ shipped, I expected a premium fitment..

 

what are the spring rates? and are these fine to run with stock struts?

 

Thank you for the response. I know the springs will not fall out, that is next to impossible.. I was more worried about unnecessary noise from play and possibly having the rear spring sit in a funny position and possibly being inconsistent in operation. With my ghetto rigged isolators I don't have to worry about any of that, but I should not have to worry about that to begin with. If it is truly not an issue, great! My isolators should be just fine and will suffice for years to come.

This post was to inform people of my findings and opinions. Not meant to bash the product. As you can see in my signature, I have bought many Powell products throughout the years (had other parts on my LT as well) and plan on continuing to give you my business as long as issues like this are corrected.

Thanks,

 

Our yyz SPRING price is 360 shipped, not 370 + shipping in the USA . I have explained the issue as I see it. I have offered to exchange the rear springs. The isolators are there to isolate noise,the spring doesnt move under compression and the spring is always under compression even with the wheels up in the air.

FYI most of the stance coil over guys throw away the isolators. Please email me if you want to exchange the springs. Please also let me know if they are making noise because of the isolator fit. I dont believe they will. They may make noise when the dead coils touch, some folks have said they hear it, I have not experienced that.

 

will v3 be lower?

 

spring rates are here:
https://www.cobaltss.net/forums/gene...6/index10.html

OBZ, yes the isolators are to dampen noise and chatter. I have heard none. Simple answer.

Nonetheless, I've also Autocrossed the car at a couple of events, and run it through a few sessions at Roebling which is a very fast race track. I've noticed no inconsistency. I've seen no side to side or fore and aft movement from the springs in the mounts. I'm also not clear on what purpose the noise isolaters serve as far as locating the spring. I didn't have the impression that they served that job.

Quite honestly, I think I got a premium fit and this is much ado about nothing. I was pretty steamed about the Pedders fit and think John did a great job in response to concerns about those very springs. I've also put springs on several other cars that fit far worse than these springs on this car. I quite honestly don't get the concern here.

Either way, John has addressed your concern where he wasn't required to do so and if you still have a concern about fit you have an avenue. Very gracious on his part, I think.

 

The front on my V2 were a touch lower than my Pedders. The rears a little higher. The car has a visible rake on the V2. I also am curious about the V3.

 

I had the same "problem" when I installed mine last weekend.




I even purchased new top and bottom isolators from CED. I was going from Pedders to YYZ v2 springs, and I knew there was going to be no way that I would be able to remove them without damaging them.

I fixed it with some 1/2" hose like this:


It was some sort of evap hose that I got from an auto parts store. It takes almost three feet to do both rear springs. The hose was a very tight fit and required a bunch of lube to get it on the springs, but the fit was absolutely perfect on the spring isolators. The rear of my car is probably 1/4 to 3/16 of an inch higher because of it, but it felt like the right thing to do.

 

liking the out of the box ideas toolman cant wait to be home from Kuwait and have v3 on my car and hardcore bar Thanks for the silver powdercoating on the rear sway bar john.

 

I think I took my isolators out when I installed my coilovers..hah! I wouldn't even notice/worry if there was a small gap like that.

 

newp unless you want to give up spring rate....