C6 Z51 Chassis improvement ???
Hello,
After more than 1 year driving my fantastic 05 C6 ... I'm more and more looking for some chassis improvement. I'm mostly driving small mountain roads... and I wanted to know if there are some small possible improvement to the Z51 to make the C6 handling being more direct ??? (I'm currently using Falken tires ) Actually I don't really want to go forward with a massive change ... but more in a stepped direction by starting with the right component ... then see how it improves .. etc ... :cheers: Some people apparently simply replace the Sway bar bushings by the Pfadt poly ones... Could that be a starting point to my quest of a better handling (I don't know if it's that much easy, but would be be cool if it was :cool:) Many thanks in advance |
Originally Posted by Hexa
(Post 1580199080)
Hello,
After more than 1 year driving my fantastic 05 C6 ... I'm more and more looking for some chassis improvement. I'm mostly driving small mountain roads... and I wanted to know if there are some small possible improvement to the Z51 to make the C6 handling being more direct ??? (I'm currently using Falken tires ) Actually I don't really want to go forward with a massive change ... but more in a stepped direction by starting with the right component ... then see how it improves .. etc ... :cheers: Some people apparently simply replace the Sway bar bushings by the Pfadt poly ones... Could that be a starting point to my quest of a better handling (I don't know if it's that much easy, but would be be cool if it was :cool:) Many thanks in advance DRM (Doug Rippie Motorsports) has some custom Bilstiens that are priced right and have very favorable reviews. I suggest these as it doesn't sound like you're trying to spend too much. http://dougrippie.com/ Poly swaybar bushings will firm up the ride but I wouldn't expect a big difference. San |
Originally Posted by Hexa
(Post 1580199080)
Hello,
After more than 1 year driving my fantastic 05 C6 ... I'm more and more looking for some chassis improvement. I'm mostly driving small mountain roads... and I wanted to know if there are some small possible improvement to the Z51 to make the C6 handling being more direct ??? (I'm currently using Falken tires ) Actually I don't really want to go forward with a massive change ... but more in a stepped direction by starting with the right component ... then see how it improves .. etc ... :cheers: Some people apparently simply replace the Sway bar bushings by the Pfadt poly ones... Could that be a starting point to my quest of a better handling (I don't know if it's that much easy, but would be be cool if it was :cool:) Many thanks in advance |
Originally Posted by Hexa
(Post 1580199080)
Hello,
After more than 1 year driving my fantastic 05 C6 ... I'm more and more looking for some chassis improvement. I'm mostly driving small mountain roads... and I wanted to know if there are some small possible improvement to the Z51 to make the C6 handling being more direct ??? (I'm currently using Falken tires ) Actually I don't really want to go forward with a massive change ... but more in a stepped direction by starting with the right component ... then see how it improves .. etc ... :cheers: Some people apparently simply replace the Sway bar bushings by the Pfadt poly ones... Could that be a starting point to my quest of a better handling (I don't know if it's that much easy, but would be be cool if it was :cool:) Many thanks in advance also the tires you are running will affect this. In my experience Falkens (the street type) arent the best choice of tire for quick driving |
Small steps.
#1) Lower the car OEM ride height on the stock bolts 1/2 inch. #2) Add a tunnel plate. #3) Customize the alignment specs. #4) Sticker tires - # 3 and # 4 probably equate to your more direct comment. There seems to be nothing you can do with steering ratio or steering feel (like heavier oil for example). FWIW: Then sway bars to dial in your body roll to your preference. Then adjustable non-coil shocks to limit dive or squat or some combination you like. Or toss the traverse spirng and go coil overs as a major step. |
Thank you very much for all the feedbacks :)
I'll actually start by giving a try to the Bilstein B6 Sports ... it's not crazy expensive and if it's not enough I'll continue with the sway bars :) BTW is there any DIY tutorial for replacing the suspensions on a C6 ??? logically it should not be that much difficult since there is no spring on them ??? Many thanks for your help |
http://www.corvettedreams.com/bilstein-i.pdf
there are many good shocks install threads on this site, you can search the c5 and c6 forums for write ups with lot of information |
Originally Posted by Hexa
(Post 1580219222)
Thank you very much for all the feedbacks :)
I'll actually start by giving a try to the Bilstein B6 Sports ... it's not crazy expensive and if it's not enough I'll continue with the sway bars :) BTW is there any DIY tutorial for replacing the suspensions on a C6 ??? logically it should not be that much difficult since there is no spring on them ??? Many thanks for your help |
Thank you again for all those informations :thumbs:
I totally missed one important thing mentioned by Kenny ... actually I'm working for a company where I can get aluminium plates from, so building a tunnel plate should not really be an issue for me. Before I unmount the exhaust to check the original plate do someone maybe have some raw dimension of the Tunnel plate so I can already pickup a plate for my future build ??? :) Many thanks in advance for your great help :) |
Originally Posted by oldmansan
(Post 1580199239)
I'd replace the stock shocks. I couldn't believe how badly the C6 handled when encountering a bump in a corner. Downright dangerous in my opinion. Probably the best money I spent was changing the suspension. I was literally tweaking it tonight for several hours.
DRM (Doug Rippie Motorsports) has some custom Bilstiens that are priced right and have very favorable reviews. I suggest these as it doesn't sound like you're trying to spend too much. http://dougrippie.com/ Poly swaybar bushings will firm up the ride but I wouldn't expect a big difference. San am i mistaken? |
I would get the Pfadt suspension kit and after 4 hours of labor, you will be driving a different car.
|
Originally Posted by el es tu
(Post 1580219293)
http://www.corvettedreams.com/bilstein-i.pdf
there are many good shocks install threads on this site, you can search the c5 and c6 forums for write ups with lot of information |
My vote is for the JOC sway bars.
|
Originally Posted by Hexa
(Post 1580199080)
Hello,
After more than 1 year driving my fantastic 05 C6 ... I'm more and more looking for some chassis improvement. I'm mostly driving small mountain roads... and I wanted to know if there are some small possible improvement to the Z51 to make the C6 handling being more direct ??? (I'm currently using Falken tires ) Actually I don't really want to go forward with a massive change ... but more in a stepped direction by starting with the right component ... then see how it improves .. etc ... :cheers: Some people apparently simply replace the Sway bar bushings by the Pfadt poly ones... Could that be a starting point to my quest of a better handling (I don't know if it's that much easy, but would be be cool if it was :cool:) Many thanks in advance Bill |
Without a doubt the JOC package works really well on Z51.
Try this link and info: http://www.pfadtracing.com/catalog/p...roducts_id/216 Checkout this thread for more opinions: http://forums.corvetteforum.com/c6-t...l-package.html |
Really good point Bill :) Actually to explain the background ... I've been driving an opel speedster for around 6 years and with the Lotus Chassis I was able to feel the road in an amazing way ... everything was transmitted to the driver.
Now with the corvette, I've the feeling of something less direct ... like a sort of latency in the controls which makes me think about a kind of rigidity issue. (not easy to explain) Also in quick curves (typical mountain roads in Europe) ... the C6 is currently a bit bumpy if the raod is not 100% perfect . On the other hand I REALLY like the confort of the corvette over a race car like the Speedster :) Finding the right balance is not easy, but that's basically the reason why I was thinking about the Bilstein and also building a thicker tunnel plate (to add some rigidity) ... which aapparently are not crazy expensive modifications but might help to solve my issues (or start to solve them) :cheers: what do you think about ??? |
Originally Posted by Hexa
(Post 1580232719)
Really good point Bill :) Actually to explain the background ... I've been driving an opel speedster for around 6 years and with the Lotus Chassis I was able to feel the road in an amazing way ... everything was transmitted to the driver.
Now with the corvette, I've the feeling of something less direct ... like a sort of latency in the controls which makes me think about a kind of rigidity issue. (not easy to explain) Also in quick curves (typical mountain roads in Europe) ... the C6 is currently a bit bumpy if the raod is not 100% perfect . On the other hand I REALLY like the confort of the corvette over a race car like the Speedster :) Finding the right balance is not easy, but that's basically the reason why I was thinking about the Bilstein and also building a thicker tunnel plate (to add some rigidity) ... which aapparently are not crazy expensive modifications but might help to solve my issues (or start to solve them) :cheers: what do you think about ??? When I drive my FE1 car, my biggest issue is body control. Once you start to hustle the car in and out of corners the body starts moving around giving the car an unsettled feeling. It is the opposite of the car feeling glued to the road. The Z51 cars I drove were better but they seemed to skip and studder over broken pavement, which I didn't like. Actually my FE1 car does that too but I think its because of the dynamic loading on the tires (body all over the place). Back to the Z51 I think the issue is more shock tuning. Either there is too much rebound and the shocks are packing up or the compression is a little stiff. For me I will go with a Z-51 spring package, which will also help with brake dive, and then Z-51 sways with bilstein sports. I have also seriously thought about stepping up to the JOC package with Z51 springs. I like what they have done with their shock tuning. |
Originally Posted by Hexa
(Post 1580232719)
Really good point Bill :) Actually to explain the background ... I've been driving an opel speedster for around 6 years and with the Lotus Chassis I was able to feel the road in an amazing way ... everything was transmitted to the driver.
Now with the corvette, I've the feeling of something less direct ... like a sort of latency in the controls which makes me think about a kind of rigidity issue. (not easy to explain) Also in quick curves (typical mountain roads in Europe) ... the C6 is currently a bit bumpy if the raod is not 100% perfect . On the other hand I REALLY like the confort of the corvette over a race car like the Speedster :) Finding the right balance is not easy, but that's basically the reason why I was thinking about the Bilstein and also building a thicker tunnel plate (to add some rigidity) ... which aapparently are not crazy expensive modifications but might help to solve my issues (or start to solve them) :cheers: what do you think about ??? I have a Lotus Exige S and a C6. Totally different animals in almost every respect. You can't expect them to give you the same feedback. You can stiffen the C6 all you want. It will still feel big and clumsy compared to a car that weighs over 1000 pounds less. The first time I drove my C6 after purchasing my Lotus I realized it would never feel the same. I still love my C6. But it's a different animal and you have to appreciate the pros and cons of it. Yeah, yeah. You think I'm dissing the C6. I'm not. I took it to the canyons yesterday and beat on it. It's loud, fast and fun. It's also fairly comfortable compared to the Exige. I've never taken my C6 to my favorite canyon road. It's too tight and twisty. It is the perfect justification for the Exige. Choose the right tool for the job. Flame suit on. San |
I agree oldmansan ;) the idea is not to change the corvette into something else and also not to have my back hurting after 150km like with a Lotus chassis :)
Also, after 60 000km my suspension are maybe simply becoming old ... ??? which might explain that lack of rigidity feeling in curves. Even my BMW touring, compared to the corvette, provides a more safety feeling in curves ... the back of the car is not like on a wave (sorry I'm not a native english speaker so describing a feeling is a bit hard :crazy2::lol:) |
Originally Posted by oldmansan
(Post 1580236531)
I think you're comparing apples to kiwis.
I have a Lotus Exige S and a C6. Totally different animals in almost every respect. You can't expect them to give you the same feedback. You can stiffen the C6 all you want. It will still feel big and clumsy compared to a car that weighs over 1000 pounds less. The first time I drove my C6 after purchasing my Lotus I realized it would never feel the same. I still love my C6. But it's a different animal and you have to appreciate the pros and cons of it. Yeah, yeah. You think I'm dissing the C6. I'm not. I took it to the canyons yesterday and beat on it. It's loud, fast and fun. It's also fairly comfortable compared to the Exige. I've never taken my C6 to my favorite canyon road. It's too tight and twisty. It is the perfect justification for the Exige. Choose the right tool for the job. Flame suit on. San That being said, on the track if your concern is bottom line speed a C6 can do everything an Elise/Exige can do and more. It requires more tires and brakes and motor to do it but the bottom line is it does...and more. It just feels different when doing it. Plus the C6 does other things the Lotus can't. At 6.0' getting in and out of his car is fun. I won't list all my complaints about the lotus, lets just say its not even in the same league as a GT car. |
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