Question about Hotchkis TVS system? - Team Camaro Tech
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post #1 of 22 (permalink) Old Mar 1st, 09, 01:38 PM Thread Starter
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Question about Hotchkis TVS system?

I have the Hotchkis TVS system with their bilstein HPS 1000 shocks front and rear. Out on the highway and smooth roads it handles great, but on my local bad roads the ride is quite bumpy and harsh. My question is do you think the ride is so bumpy on my local roads do to the front springs and rear leafs or due to the shocks? I am asking because I am debating if I want to use the same setup on my 68 Chevy II, but thinking maybe to go with different shocks so the ride is not so bumpy on my local roads?
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post #2 of 22 (permalink) Old Mar 1st, 09, 01:53 PM
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Re: Question about Hotchkis TVS system?

I would guess it's the springs. Shorter and stiffer than factory. I have the same set-up (no rear bar) but with GR-2's, which aren't anywhere near as nice a shock as the Bilsteins and it's pretty harsh on a bumpy road.


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post #3 of 22 (permalink) Old Mar 1st, 09, 02:06 PM
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Re: Question about Hotchkis TVS system?

Same here Hotchkis front/rear lowering leafs and springs with GR-2's and its very very very stiff.

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post #4 of 22 (permalink) Old Mar 1st, 09, 02:11 PM Thread Starter
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Re: Question about Hotchkis TVS system?

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Originally Posted by Skeeter55 View Post
Same here Hotchkis front/rear lowering leafs and springs with GR-2's and its very very very stiff.
What wheels and tires are you guys running, any clearance issues?
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post #5 of 22 (permalink) Old Mar 1st, 09, 02:13 PM
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Re: Question about Hotchkis TVS system?

As unpopular as composite leaf springs are, your might still consider trying them.

I have Flex-a-Form composites - 225 lb./in. in the back of my '68 Camaro, and found the ride to be much smoother, even over bumps, than with the (I think) 175 lb./in. Hotchkis 2407C's I had before. The difference is that the composite springs react faster than steel spings do, so bumps are more readily absorbed.

Mike - '68 Camaro with lots of stuff done to it.


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post #6 of 22 (permalink) Old Mar 1st, 09, 02:17 PM
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Re: Question about Hotchkis TVS system?

I have the 18" Billet Raleys form www.wheelvintiques.com

Fronts rims are 18x7 with 4" backspace and stock disk brakes...
Front tires are 245/40/18s BF Goodrich G-Force....(NO RUBBING)

Rear rims are 18x9.5 with 5.5 back space and stock drum brakes...
Rear tires are 285/40/18s BF Goodrich G-Force (slightly rub next size tires will be 275/40/18)

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post #7 of 22 (permalink) Old Mar 1st, 09, 02:43 PM
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Re: Question about Hotchkis TVS system?

Let's see if I can remember this.

Wheels are American CL-205
Front 17x8 4.75 bs 235/45-17 Potenza RE-750
Rear 17x9.5 5.5 bs 275/40-17 Potenza RE-750
Brakes are C5 Front Discs/C4 Rear Discs

No rubs, trimmed slightly the rear fender lip on the right only.


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post #8 of 22 (permalink) Old Mar 1st, 09, 07:00 PM
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Re: Question about Hotchkis TVS system?

A leaf spring by design uses the arch in the spring to help support the weight of the car. When you lower the car, you flatten the spring and to compensate for that lake of arch, the spring must be made stiffer. Also, stiffer springs equal less body roll. So the bottom line is stiffer is better (insert dirty thought here) for handling. But rides not so nice as stock
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post #9 of 22 (permalink) Old Mar 2nd, 09, 07:47 AM
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Re: Question about Hotchkis TVS system?

I have the Hotchkis package on my '69 with KYB shocks. Handles great but I find the ride quality pretty harsh. I'm running old school rallys with 60 series tires. I have been looking into replacing the shocks with Konis or Bilsteins but am not going to spend the dough if it does not change the ride quality dramatically.
Not trying to hijack the thread but has anyone upgraded from the KYB or similar stiff shocks to a Koni, Bilstein or similar and found a much better ride quality? $500 in shocks is a lot to spend and wind up disappointed.

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post #10 of 22 (permalink) Old Mar 2nd, 09, 06:53 PM
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Re: Question about Hotchkis TVS system?

We have the Hotchkis second gen kit and the Bilsteins are nice, not all that stiff, in fact, we found them to be a bit soft for autocrossing and bought adjustable shocks to get more stiffness. Tire type makes a huge difference in ride too, our DOT autocross tires make for a horrible ride on the street.

I think the Hotchkis springs are better suited for use with wider wheels and tires than 15" wheels and 60 series tires.
David

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post #11 of 22 (permalink) Old Mar 2nd, 09, 07:13 PM Thread Starter
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Re: Question about Hotchkis TVS system?

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Originally Posted by davidpozzi View Post
We have the Hotchkis second gen kit and the Bilsteins are nice, not all that stiff, in fact, we found them to be a bit soft for autocrossing and bought adjustable shocks to get more stiffness. Tire type makes a huge difference in ride too, our DOT autocross tires make for a horrible ride on the street.

I think the Hotchkis springs are better suited for use with wider wheels and tires than 15" wheels and 60 series tires.
David
I am putting 18x8 fronts with 245/40/18 nittos and 18x9 rear with 275/40/18 nittos, so are you saying the ride will get better? Currently have 15x7/15x8 rallys with I think 245/60/15.
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post #12 of 22 (permalink) Old Mar 2nd, 09, 07:14 PM
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Re: Question about Hotchkis TVS system?

Quote:
Originally Posted by Cal69 View Post
I have the Hotchkis package on my '69 with KYB shocks. Handles great but I find the ride quality pretty harsh. I'm running old school rallys with 60 series tires. I have been looking into replacing the shocks with Konis or Bilsteins but am not going to spend the dough if it does not change the ride quality dramatically.
Not trying to hijack the thread but has anyone upgraded from the KYB or similar stiff shocks to a Koni, Bilstein or similar and found a much better ride quality? $500 in shocks is a lot to spend and wind up disappointed.
I run hotchkiss springs with KYB's. Car is pretty harsh.
Switching to QA1's next weekend, though we are still a month shy of Chicago's ragtop season, so she probably won't get out for a while.





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post #13 of 22 (permalink) Old Mar 2nd, 09, 07:15 PM Thread Starter
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Re: Question about Hotchkis TVS system?

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Originally Posted by JimM View Post
I run hotchkiss springs with KYB's. Car is pretty harsh.
Switching to QA1's next weekend, though we are still a month shy of Chicago's ragtop season, so she probably won't get out for a while.
Please reply when you do get out with them because they were what I was thinking for the next option. Thanks
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post #14 of 22 (permalink) Old Mar 2nd, 09, 07:21 PM
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Re: Question about Hotchkis TVS system?

Quote:
Originally Posted by JimM View Post
I run hotchkiss springs with KYB's. Car is pretty harsh.
Switching to QA1's next weekend, though we are still a month shy of Chicago's ragtop season, so she probably won't get out for a while.
X2 Jim please let use know why and how you like them better when you get out for a ride.

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post #15 of 22 (permalink) Old Mar 3rd, 09, 07:10 PM
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Re: Question about Hotchkis TVS system?

We sell a lot of QA1 and combine them with hotckkis often. I can tell you the QA1s will ride very nice on a setting of 4 or so, then turn them up to 6 or 7 for Autocross.

Also, the Hotchkis / Bilstiens ride much better then KYBs, but then again, anything rides better then KYBs, LOL!
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