Jump to content
Forums Gone... but not forgotten!
Pontiac of the Month

Shakercars's 1972 Trans Am

2019 August
of the Month

  • Welcome!

    Welcome to Forever Pontiac, full of great ideas for Pontiac performance, maintenance, or for peer-to-peer assistance from Professional and DIY mechanics. Also, compete in our Pontiac monthly competitions. Please register if you'd like to take part.

Stewy

Renovatio

Recommended Posts

Tired of these Ads? Register Today!

Wow! Quite a bit of work you’ve done to it. Looks great! I especially love that trunk lid. 

Some good “go” mods as well 👍

  • Like 1

Share this post


Link to post
Share on other sites

Very nice ride, awesome mods.  Any chance of making the last all Pontiac show show of the year at Sellers??? Sept 22,   38000 Grand River Ave in Farmington. 48335.   Sounds like your close enough to Frosty that you could hook up and drive together.  We try N save parking for our lil group.  

Share this post


Link to post
Share on other sites

Nice adds! Look good! Did you do anything with the sway bar links or sway bar bushings? Any work to the front lower Aarm? Struts?

Just wondered? 

Share this post


Link to post
Share on other sites

@Last Indian

Hey Gary. Right now I still have, in both front and rear, the OEM sway bar links. I've been itching to swap them out for ones that are serviceable (i.e. have the zerk fittings on them) but I haven't been able to justify the cost at this point (albeit RockAuto has the zerk fitting equipped ones for a reasonable price but since the OEM ones are still good... 😕).

The same goes for the sway bar bushings. One of the things (along with a few others) on the to-do list is to replace them with polyurethane bushings. I know there are dividing thoughts on the poly bushings but in my experience I'm a poly fan. I'm currently running polys in the upper engine to core support dog bones and have been pleased with the feedback in the steering wheel. Another item on the to-do list is to replace the trans and block mounts over to polys. My research shows in that case, however, the feedback in the wheel may be too much for my taste so we'll see.

Oddly enough (at least I think I'm odd :)), regarding the MacPhersons, I have factory's at all four corners. When the time comes, to be completely honest, I'm planning on putting OEM shocks (possibly new coils, too) back in. In my '99 Grand Prix I was running KYB GR-2's and while I didn't have any complaints per-say, I feel the OEM setup in my '05 provides a better ride and handing response (but, again, that's just me and I'm "different" :) ).

 

@JUSTA6

Hey Steve. Thanks for the invite - it's appreciated! Unfortunately, I will not be able to attend 😞. That's the day the family is getting together to celebrate my daughter's birthday 🎂. Maybe next year... ?

Share this post


Link to post
Share on other sites
19 hours ago, Stewy said:

@Last Indian

Hey Gary. Right now I still have, in both front and rear, the OEM sway bar links. I've been itching to swap them out for ones that are serviceable (i.e. have the zerk fittings on them) but I haven't been able to justify the cost at this point (albeit RockAuto has the zerk fitting equipped ones for a reasonable price but since the OEM ones are still good... 😕).

The same goes for the sway bar bushings. One of the things (along with a few others) on the to-do list is to replace them with polyurethane bushings. I know there are dividing thoughts on the poly bushings but in my experience I'm a poly fan. I'm currently running polys in the upper engine to core support dog bones and have been pleased with the feedback in the steering wheel. Another item on the to-do list is to replace the trans and block mounts over to polys. My research shows in that case, however, the feedback in the wheel may be too much for my taste so we'll see.

Oddly enough (at least I think I'm odd :)), regarding the MacPhersons, I have factory's at all four corners. When the time comes, to be completely honest, I'm planning on putting OEM shocks (possibly new coils, too) back in. In my '99 Grand Prix I was running KYB GR-2's and while I didn't have any complaints per-say, I feel the OEM setup in my '05 provides a better ride and handing response (but, again, that's just me and I'm "different" :) ).

 

@JUSTA6

Hey Steve. Thanks for the invite - it's appreciated! Unfortunately, I will not be able to attend 😞. That's the day the family is getting together to celebrate my daughter's birthday 🎂. Maybe next year... ?

Just as a informational source, sway bars, as you know make a huge difference in handling, but the real weak link in the 6th & 7th generation GP’s were the links! Without the right configuration for the front end links, there is only about a 40% impact on handling! The front links are to tall & too small in bolt diameter! The rear links are just plain abominable! They have less then a 20% impact on handling! Take a look at the bar diameter and than look at the end link rod diameter! 

Yes, the poly bushings will make a vast improvement in the performance of both bars, but only when you change the end links! With the stock links the improvement is negligible. The good news is those improvements really have very little impact on ride quality! AKA soft vs stiff.

Likewise the upper motor mounts in poly is good! They help control engine rotation and using poly makes that even more effective, which in turn helps deliver more of the available torque to the wheels via the transaxle. The lower engine mount and transmission mount on the other hand really don’t. They are for dampening, thus they simple transmit more resonance frequency to the frame structure, causing more of a uncomfortable underlying vibration. Yes you will feel it in the wheel, but its not feedback, its just structural resonation, not power or handling feedback.

You need to be happy with the ride you create, but the KYB AGX is a better, far different strut than the Gr2. If you set the ride control to the softest setting they ride quite well, but if I remember right have a larger shaft than the Gr2 and definitely larger than the OEM strut and the AGX are just a different mechanical design than the Gr2. That shaft is the only upper connection of the entire front suspension. The smaller that shaft the less stable the entire wheel assemble is and the more flex there is in that assembly. So even strut tower braces can’t help that! 
Likewise the lower control arm/Aarm is a weak link at the bottom because of the ineffective, illogical vertical front bushing which is one step away from worthless, IMO. This coupled with a smaller than necessary strut shaft account for most of the reason for torque steer in these cars.

Share this post


Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now

Tired of these Ads? Purchase Enhanced Membership today to remove them!
×
×
  • Create New...

Important Information

We have placed cookies on your device to help make this website better. You can adjust your cookie settings, otherwise we'll assume you're okay to continue.