[cirpower]

Hi all

Yesterday, I took my normal ZL1 to the track. The car worked great and the power is just amazing.

Goimg forward, I would like to use racing slicks to add grip. However, I felt that the back was relatively soft accelerating out of corners.

Now I kinda wish I had gone with the 1LE.....

Is there a way to upgrade to the 1LE suspension? What are all the parts that need to be changed and how much would that cost including fitting? Does that even make sense?

Also, racing slicks are a lot more available in 18 inch, so I guess I need some new wheels. Anyone has a good recommendation for 18 inch wheels that dont cost an arm and a leg?

cheers
cirpower

[nicktechla]

Originally Posted by cirpower

Hi all

Yesterday, I took my normal ZL1 to the track. The car worked great and the power is just amazing.

Goimg forward, I would like to use racing slicks to add grip. However, I felt that the back was relatively soft accelerating out of corners.

Now I kinda wish I had gone with the 1LE.....

Is there a way to upgrade to the 1LE suspension? What are all the parts that need to be changed and how much would that cost including fitting? Does that even make sense?

Also, racing slicks are a lot more available in 18 inch, so I guess I need some new wheels. Anyone has a good recommendation for 18 inch wheels that dont cost an arm and a leg?

cheers
cirpower

I was thinking about maybe doing the same.

https://wildhammermotorsports.com/ca...t-performance/

https://wildhammermotorsports.com/ca...t-performance/

[TRZ06]

Originally Posted by cirpower

Hi all

Yesterday, I took my normal ZL1 to the track. The car worked great and the power is just amazing.

Goimg forward, I would like to use racing slicks to add grip. However, I felt that the back was relatively soft accelerating out of corners.

Now I kinda wish I had gone with the 1LE.....

Is there a way to upgrade to the 1LE suspension? What are all the parts that need to be changed and how much would that cost including fitting? Does that even make sense?

Also, racing slicks are a lot more available in 18 inch, so I guess I need some new wheels. Anyone has a good recommendation for 18 inch wheels that dont cost an arm and a leg?

cheers
cirpower

You do not need to upgrade to the harsh ZLE DSSV shocks/springs.

All you need to do to tighten up the rear-end is add either a rear cradle lock-out kit or swap out the rear cradle bushings for solid ones. That makes all the difference.

[Badmojo]

I'm not sure how much track time you have in total, but I'd focus on getting the most out of the factory parts first. There is more in driver-mod than parts typically. If you have tons of experience, then disregard.

Originally Posted by cirpower

Hi all

Yesterday, I took my normal ZL1 to the track. The car worked great and the power is just amazing.

Goimg forward, I would like to use racing slicks to add grip. However, I felt that the back was relatively soft accelerating out of corners.

Now I kinda wish I had gone with the 1LE.....

Is there a way to upgrade to the 1LE suspension? What are all the parts that need to be changed and how much would that cost including fitting? Does that even make sense?

Also, racing slicks are a lot more available in 18 inch, so I guess I need some new wheels. Anyone has a good recommendation for 18 inch wheels that dont cost an arm and a leg?

cheers
cirpower

[BlueinTN]

Originally Posted by TRZ06

You do not need to upgrade to the harsh ZLE DSSV shocks/springs.

All you need to do to tighten up the rear-end is add either a rear cradle lock-out kit or swap out the rear cradle bushings for solid ones. That makes all the difference.

yeah all the aero stuffs just a gimmick....


and the brakes....


and the tires....


and the added camber top hats....


And the DSSV shocks thats stupid stuff F1 uses just to get a multimatic sticker on there car.

[Badmojo]

I think the point is that the novice driver or average driver is going to see a bigger difference from the Goodyear 3R's vs the GYSC3's instead of anything else.



There is no difference in the brakes between the ZL1 and the ZL1 1LE except the caliper color.

Originally Posted by BlueinTN

yeah all the aero stuffs just a gimmick....


and the brakes....


and the tires....


and the added camber top hats....


And the DSSV shocks thats stupid stuff F1 uses just to get a multimatic sticker on there car.

[nicktechla]

Originally Posted by Badmojo

I think the point is that the novice driver or average driver is going to see a bigger difference from the Goodyear 3R's vs the GYSC3's instead of anything else.



There is no difference in the brakes between the ZL1 and the ZL1 1LE except the caliper color.

the red color adds slightly more performance

[Gunkk]

Originally Posted by cirpower

Hi all

Yesterday, I took my normal ZL1 to the track. The car worked great and the power is just amazing.

Goimg forward, I would like to use racing slicks to add grip. However, I felt that the back was relatively soft accelerating out of corners.

Now I kinda wish I had gone with the 1LE.....

Is there a way to upgrade to the 1LE suspension? What are all the parts that need to be changed and how much would that cost including fitting? Does that even make sense?

Also, racing slicks are a lot more available in 18 inch, so I guess I need some new wheels. Anyone has a good recommendation for 18 inch wheels that dont cost an arm and a leg?

cheers
cirpower

It would be a lot easier just to buy a ZLE like this one, which looks to be set up for the track...

https://www.camaro6.com/forums/showthread.php?t=562504

[TRZ06]

Originally Posted by BlueinTN

yeah all the aero stuffs just a gimmick....


and the brakes....


and the tires....


and the added camber top hats....


And the DSSV shocks thats stupid stuff F1 uses just to get a multimatic sticker on there car.

LOL, Not sure if you were being serious or not.

Yes, all those other things help obviously, (with the biggest factor being the 3R tires), but I was specifically addressing the non-tight feeling of the rear-end.

Yes, the DSSV shocks are bad ass and used by F1 race cars, BUT the MRC is also great and from those who have swapped, they found no time savings by swapping. They are simply more track focused and 1 dimensional.

The weakest link going from the ZL1 1LE to the SS 1LE / ZL1 are the rear cradle bushings and tire grip. Those 2 items will get you 95% of the handling side of things.

The brakes are just as great on all 3 trims, you can get about 2.2 to 2.5 camber on the ZL1 and SS 1LE. Aero is really a non-factor until triple digit speeds, and while the ZL1 has less aero than the ZLE, there is still enough there to keep things planted. In fact, I would wager that additional down force and/or grippier tires on those rubber cradle bushings will cause more instability, as you are putting more stress on them (higher G loads on rubber bushings is BAAAD)

You have to keep in mind that the suspension system is ALL components working together as a cohesive package to create a sum. When upgrading, start from the foundation and work your way up the chain.

OR, just upgrade to the ZLE if all you want to do is have a dedicated track car.

[TheRealJA105]

Originally Posted by TRZ06

LOL, Not sure if you were being serious or not.

Yes, all those other things help obviously, (with the biggest factor being the 3R tires), but I was specifically addressing the non-tight feeling of the rear-end.

Yes, the DSSV shocks are bad ass and used by F1 race cars, BUT the MRC is also great and from those who have swapped, they found no time savings by swapping. They are simply more track focused and 1 dimensional.

The weakest link going from the ZL1 1LE to the SS 1LE / ZL1 are the rear cradle bushings and tire grip. Those 2 items will get you 95% of the handling side of things.

The brakes are just as great on all 3 trims, you can get about 2.2 to 2.5 camber on the ZL1 and SS 1LE. Aero is really a non-factor until triple digit speeds, and while the ZL1 has less aero than the ZLE, there is still enough there to keep things planted. In fact, I would wager that additional down force and/or grippier tires on those rubber cradle bushings will cause more instability, as you are putting more stress on them (higher G loads on rubber bushings is BAAAD)

You have to keep in mind that the suspension system is ALL components working together as a cohesive package to create a sum. When upgrading, start from the foundation and work your way up the chain.

OR, just upgrade to the ZLE if all you want to do is have a dedicated track car.

You have learned much grasshopper
I don't agree 100% with what I bolded as the factory rubber bushings can still handle more stress, but we all know they are a weak link and less rubber in the suspension bushings is better.

OP: On some tracks the aero will be more of a hindrance than a benefit also

[minn19]

After modding a few cars suspensions/tire sizes etc they were better (especially my GT350), but it still didn't feel completely right. Almost like certain things weren't playing nice together as a cohesive package. Which, is why I went with the ZLE. I don't find the ride that bad, of course on really bad roads it is, but so were so some of my previous cars. Especially my first 15 M3 static suspension, which was worse in terms of ride and much worse when it came to doing what it was supposed to do performance wise. At least with the harsher ride you get a world class suspension setup with the ZLE.

[TRZ06]

Originally Posted by minn19

After modding a few cars suspensions/tire sizes etc they were better (especially my GT350), but it still didn't feel completely right. Almost like certain things weren't playing nice together as a cohesive package. Which, is why I went with the ZLE. I don't find the ride that bad, of course on really bad roads it is, but so were so some of my previous cars. Especially my first 15 M3 static suspension, which was worse in terms of ride and much worse when it came to doing what it was supposed to do performance wise. At least with the harsher ride you get a world class suspension setup with the ZLE.

HAHA, totally agree with you on the M3 crap suspension. BMW needs a new shock/suspension tuning engineering team. They are WAY BEHIND in shock tuning.

I hated my 16' M3 suspension so much I moved to the Ohlin R/T coil-overs, and even then, like you said, it didn't work all that great as a cohesive package.

The ZLE is a great choice that is built right, right out of the gate. I think I am just at an age now though, that I wouldn't want the ride penalty as a daily. That is why the ZL1 or SS 1LE with MRC and a few select mods is the best of both worlds.

[TRZ06]

Originally Posted by TheRealJA105

You have learned much grasshopper
I don't agree 100% with what I bolded as the factory rubber bushings can still handle more stress, but we all know they are a weak link and less rubber in the suspension bushings is better.

OP: On some tracks the aero will be more of a hindrance than a benefit also

[Vtor_ZL1]

Save money for seat time and tires.. and track insurance. and brakes, novices are hard on brakes.