ibjamin

Installing the VBP Poly bushings at the moment. Wondering what camber I should get the car set to. Car is street driven and also to the tracks. I run R compound or slicks at the track.

I currently run about -2.2 front, -1.2 rear. But I heard I can run less since the bushing deflection should be gone. How does -1.5 F and -1 R sound? Would like to make the tires wear a little less on the insides.

Also, what kind of grease should be used on these bushings? I went ahead and installed Zerk fittings on the arms so I can grease them. I saw Mobil 1 grease. Would that work good?

BTW, when I removed my old bushings I used a cheap Harbor Freight hydraulic press. All the bushings came out so well and undamaged that I could probably use them again by pressing them back in.

G

Jason

If you run R compounds at only -1.5, you will eat the outside edges on-track. How much street driving do you do besides to/from the track?

ibjamin

5K a year but I'd likely do more if I quit working on the car all the time.

NemesisC5

I have the Pfadt poly bushings and use marine grade grease. I was told it resists water better by not getting rinsed away as easily. I also have the zirks installed.

John Shiels

die-electric grease cheap at NAPA

LilR3dCorvette

The folks at VBP recommended using marine grease when I got my poly bushings. Can be found at ACE hardware or other similar stores. I think it was $10 for a big tube of it.

AlwaysInBoost

are the zirk fittings as easy to install as it seems... just drill, tap and insert the fitting in the control arm? I'm doing my Pfadt bushings this weekend so now would be the perfect time to do this.

NemesisC5

It was easy for me because someone else did the work

A young engineer/mechanic/car enthusiast usually does my wrenching and according to him the biggest issue was where to place the zirks for easy access and at the same time keeping them from being too exposed to road hazards (rocks...asphalt...off course spins...etc...). All being said it was a non issue for him, he is extremely smart and meticulous with detail....genuine engineering DNA. Good Luck With Yours

AlwaysInBoost

Care to share where the fittings were placed? I have an idea but if someone has a better one I'm all ears

jordan@pfadtracing

With the Poly C-Arm bushings you can run -1.5 to -1.8 front and I would suggest -1.0 to -1.2 in the rear. Testing is obviously extremely important and checking your cross temps will tell you where to go from there. I like staying in the -1.0 range in the rear because it allows you to plant the power.

I'm not sure what VBP supplies with there kits but we use NEO Synthetic watercraft grease in our kits. We have a 14oz tube for grease guns but you'll need a tough gun! You can use any watercraft type grease but I would stay away from the Mobil1 or moly type grease.

Please feel free to call or email us anytime with questions!

Kind regards,

NemesisC5

I don't have any pics and the car is away having the Pfadt camber kit installed (something you might wanna do now). I'll PM you pics as soon as I get it back in a day or two, but you'll probably be finished by then.

ibjamin

Here are some pics of my rear arms showing the zerks. They are on the top on the lower arms and the bottom of the upper arms. Don't have pics of the fronts. The front lower arms have them on the bottom. Didn't put any on the front upper because that is a one piece bushing. I figure I can take them apart pretty easy if they need to be regreased.

http://s69.photobucket.com/albums/i6...20and%20tires/

AlwaysInBoost

ibjamin, thanks for those pics.

I just did the full install of the control arm bushings this weekend along with putting zerk fittings on all of them... 14 hours later its done! I did every bushing except for the rear lower control arms, I just flat ran outta time. I will probably do them over the winter but I want to drive the car for alittle bit and see how it feels.

I'm thinking about keeping the stock rubber bushings in the rear for a couple reasons. First being that they are the only one piece pfadt bushings that came with the kit, and I'm worried about NHV. I don't want to have to remove and regrease them once a year. Thats why I installed the zerk fittings. All the other bushigns are two piece and I think the placement of the zerk fitting right in the center of the CA will make lubing the whole bushing a snap. I also think leaving the rear a little 'softer' then the front will help me put the power down, might be totally off on this so someone please correct me if I'm wrong.

I'm getting an alignment done this week and should be ready to hit the track again on the 18th... can't wait.

VBP

Ibjamin,

We use (and recommend) white lithium marine grease. Also, I agree with Jordan at Pfadt on his choice for grease.

Check out this alignment specs chart. Depending on how you plan on using the car, there are some very good baseline numbers here …

http://www.vbandp.com/instructions/h...ruct/align.htm


Sincerely,
Alan G.
VBP - Vette Brakes & Products, Inc.