Cammd95Z

iTrader: (4)

Im curious if anyone else who has installed the lt4 hotcam kit has experienced any kind of braking problems? i didn't think that this cam was near big enough to cause vaccum trouble but maybe i was wrong... anyone else with this problem??

BrianEsser

Sure you just don't have a vacuum leak or a shot booster?

I can't see a a hotcam causing any vacuum issues, could be wrong though.

LT1BRN

iTrader: (1)

check for vacume leakes, the Hot Cam is way to small to cause any.

Bad Dad

iTrader: (2)

Agreed

the_merv

iTrader: (88)

Haven't had any kind of problems with the Brakes..I switched to the LS1 Big Brakes, and they work great.

dhdenney

iTrader: (53)

Yeah maybe you hooked a line up wrong or something after reinstalling the mainfold.

slick1851

You have a leak some were, its not the cams re check things

Cammd95Z

iTrader: (4)

I figured it would be a leak somewhere else... anyone know how to check the booster? ive check all the other lines, and they all seem fine... it brakes fine when your driving it and coming to a light the pedal just seems soft when im at a stop trying to hold the car... any ideas?

96capricemgr

iTrader: (1)

Is the car tuned for the cam??? I think the leak suggestions are good just adding another suggestion as to the potential cause.

Cammd95Z

iTrader: (4)

Yea the car was mail order tuned, and i had the EGR and AIR pumps deleted, all of these lines are plugged, and all the hoses seem to have no cracks, i even pulled some of the lines off and blew through them to make sure nothing some how got in there and was blocking air flow, no lines are cracked.. im kinda at loss.. im starting to think maybe my calipers or brake lines...

1994Z28Lt1

iTrader: (1)

well if your were low on vacuum your pedal wouldn't feel soft it would be just the opposite it would feel hard as a rock and kind of numb feeling if it feels soft then you have air bubbles in the brake lines somewhere and they need to be bled or you are leaking brake fluid from somewhere, see if you cant get your hands on a vacuum gauge i would think at idle with that cam you should be anywhere from 14-17 inches at hot idle

LT1BRN

iTrader: (1)

I dont think tuning would make much deference in the breaks, I've been driving my car for 2 months now, with a ton of mods, but couldnt tune it Yet, A/F ratio is fine so Im not really worried, point is breaks are fine.

Yous booster could be shot, cant help with checking, hope some one here can.

Cammd95Z

iTrader: (4)

Good to know. I cant believe i didnt think a little harder about the brakeing situation and pedal firmness without vaccum i guess i will let it go till spring when i put new brakes and i will just bleed them too and check the calipers to be safe. thx for the help everyone

the_merv

iTrader: (88)

Yea, bleed them. If you have the chance, get the LS1 Brakes.

Cammd95Z

iTrader: (4)

what has to be changed in order to use LS1 Brakes on an LT1

the_merv

iTrader: (88)

Whole Spindle Assembly. If you get them complete, they go in quick.

hyperzone

could go even bigger and get the corvette c5 brakes from UMI... hehe... Yeah, you have to change the spindle to be able to bolt in the LS1 calipers, and obviously you'll have the larger LS1 rotors too.,

Cammd95Z

iTrader: (4)

i can still use my stock rims?

Revelation Z28

iTrader: (10)

not for C5 brakes. you need at least 17" rim for them.

the LS1 brakes yes, because the LS1 Z28 came with 16" rims.

you have salad shooters right?

Cammd95Z

iTrader: (4)

yes i do have the shooters, im seriously considering this now, about what does it cost to do this swap if you find a good low mileage set?