Major upgrade in the works
Major upgrade in the works
Here's a little picture to get this teaser going.
More info later today.

also I just realized this was posted in the wrong section.
can a mod move it over to suspension?
Last edited by ei3dag3; Jun 9, 2012 at 08:46 PM.
i did just a lot of forum hopping.
found these on ls1tech's forums.
a guy in tyler, tx was selling them and had these posted from back in early 2011.
i just pm'd him and asked him to text me if he had them a good 2 months ago.
then i had my friend in tyler take a look for me.
lucky for me his wife was coming to bastrop so I just met here near that area and picked them up for an incredibly cheap price.
he ended up leaving brake fluid so that paint is all bubbled...but thats a quick fix. for the price I couldn't complain.
if you're patient you can easily find the 4 together for about 500 bucks.
it's a steal compared to what msrp is on them.
i did want the 6 piston calipers, but they are a little to expensive for my taste.
indeed!
i probably won't be using ctsv rotors, but we'll see.
Last edited by ei3dag3; Jun 9, 2012 at 02:44 PM. Reason: Automerged Doublepost
thats why i didn't want them. they are hard to come by used.
then on top of that you'd have to buy the rears which in general are hard to come by.
ebay has them for like 300-400 for the rears alone, but who knows what you can find on forums.
i just kept looking. its the same thing i'm doing for the s252.
i'm pretty certain you'd need to modify the caliper if you had the 6 pistons or get new rims.
i've seen some camaro's use the ctsv calipers i have on 17s, but they had to trim a little bit of caliper away.
honestly the 6 pistons in the front isn't even worth it.
4 pistons on each side is more than enough for the ss.
as far as rotors..
it depends on the diameter after i bolt them.
i have a friend coming over with his saab.
he has the same exact brake setup I do now with same hubs.
reason i'm using his car is because saab's don't have studs so I can
take measurements then go to vatozone and buy rotors for test fitment without worrying about running into bolt pattern issues.
something tells me 03 ford cobra rotors will work. they are 13".
he bought my brembo's and put them on his car. we did measurements before so that is just guesswork.
Last edited by ei3dag3; Jun 9, 2012 at 02:57 PM.
you got somewhere you can go to have rotors redrilled? or get blank rotors??
an excuse my stupidity, but couldn't you jus get 2 front LNF rotors an slap em on the back? Or some LSJ front rotors, They're a lil smaller
an excuse my stupidity, but couldn't you jus get 2 front LNF rotors an slap em on the back? Or some LSJ front rotors, They're a lil smaller
they're a lot smaller. cobalt with brembo's diameter is 12.4". rear disc is 11.5."
the stock cobalt ss brembos have 4 pistons.
however these pistons are 38mm in size.
the rears only have 2 pistons each and they're like 45mm or something like that.
currently my lnf doesn't even have brembo's i'm using the lsj calipers.
07 and below ctsv's come with 14.37 in the front and all cts'vs have 13.98" in the rear.
the front brembos on the 07 below ctsv's have 4 pistons with a diameter of 44 & 40 mm on each side iirc.
and the rear ctsvs have 4 pistons as well. not sure what size the pistons are but obviously they are better than stock tc rears.
Last edited by ei3dag3; Jun 9, 2012 at 09:50 PM.
was selling the car a long time ago.
then i got rear ended at a red light.
now i'm just kind of stuck with it.
so i'm just gonna pay it off and keep it.
eventually will still get the car i want though.
its cheaper to do a full brembo ctsv swap than just buying cobalt ss brembo's.
plus the ctsv's brembo calipers are larger than the cobalt ss brembo's.
this will probably cost me about 6-7 hundred bucks when all is said and done (including new rotors and pads).
i may be able to. I just need to take measurements first.
i would get them drilled in 5x110 by r1 concepts though. not blank.
it all just depends on the distance between the center of the hub and the brackets.
So my buddy jn2 came over with his saab and we test fitted stuff.
Got some good news and bad news.
So i'll start off with the bad news.
Here is a picture of the rears.


As you can tell they do not directly bold onto our hub.
So i'm thinking of going to a machine shop and having them fab up brackets for me to be able still bolt the rears to the hubs because i'd like to use them.
However if they fab something up at the approximate location we used we'd need the 14" z06 rotor in the rear as well. Which would mean my brakes would break necks since the braking ratio might be too rear bias.
Now to the good news.
The rear ctsv calipers do bolt up to the front.

I'm not certain what size rotor you'd need, but I imagine they still be a little bigger than the rotors used on stock brembo's. Not really good news for lnf guys, but guys with lsj calipers on the fronts could upgrade to these calipers for fairly cheap.
Now for the best news.

heres the front ctsv calipers on the front of the car.
the bolt that should be used here is a m12 x 1.75 however we didn't have any so we just used a long bolt that was smaller with a nut to temporarily hold it on.
here is the stock ss/tc rims on.



The brembo's clear the inner part of the wheel but not the outer part.
In order to fit the front ctsv brembo on the rotors on the front wheels you'll need to machine 1/8th of an inch away on both sides of the caliper bolt bracket. Not 100% sure yet, but either brembo may need a 20-25 mm spacer. It just depends on it machining that 1/8th away takes enough off to clear the ss/tc rims.

Next step for me now will be to buy two z06 14" rotors and get the front calipers machined.
i'll probably be looking for a rear ss/tc wheel bearing/spindle assembly so that I can take that and the rear calipers to the machine shop. that way i can use them on my car in the back.
Got some good news and bad news.
So i'll start off with the bad news.
Here is a picture of the rears.


As you can tell they do not directly bold onto our hub.
So i'm thinking of going to a machine shop and having them fab up brackets for me to be able still bolt the rears to the hubs because i'd like to use them.
However if they fab something up at the approximate location we used we'd need the 14" z06 rotor in the rear as well. Which would mean my brakes would break necks since the braking ratio might be too rear bias.
Now to the good news.
The rear ctsv calipers do bolt up to the front.

I'm not certain what size rotor you'd need, but I imagine they still be a little bigger than the rotors used on stock brembo's. Not really good news for lnf guys, but guys with lsj calipers on the fronts could upgrade to these calipers for fairly cheap.
Now for the best news.

heres the front ctsv calipers on the front of the car.
the bolt that should be used here is a m12 x 1.75 however we didn't have any so we just used a long bolt that was smaller with a nut to temporarily hold it on.
here is the stock ss/tc rims on.



The brembo's clear the inner part of the wheel but not the outer part.
In order to fit the front ctsv brembo on the rotors on the front wheels you'll need to machine 1/8th of an inch away on both sides of the caliper bolt bracket. Not 100% sure yet, but either brembo may need a 20-25 mm spacer. It just depends on it machining that 1/8th away takes enough off to clear the ss/tc rims.

Next step for me now will be to buy two z06 14" rotors and get the front calipers machined.
i'll probably be looking for a rear ss/tc wheel bearing/spindle assembly so that I can take that and the rear calipers to the machine shop. that way i can use them on my car in the back.
Last edited by ei3dag3; Jun 9, 2012 at 08:43 PM.
new update..for the rears.

i was forum hopping and i think using a bracket like this should do the trick. they will however been in a different postion/degree, but as long as the bleeder is facing up it should work.
i think i will also use this same bracket on the fronts so I do not have to slot the holes larger on the front spindle.

i was forum hopping and i think using a bracket like this should do the trick. they will however been in a different postion/degree, but as long as the bleeder is facing up it should work.
i think i will also use this same bracket on the fronts so I do not have to slot the holes larger on the front spindle.
Last edited by ei3dag3; Jun 9, 2012 at 09:35 PM.



