After I got my cam installed its smoked for a while (black and white). When I start the car or just drive around town, my car wont smoke, but when I race, rpm's over 4000 rpms it smokes up the whole street and has a real gasy smell.The smoke is white, but it only smokes after 4000 rpms on 1st and 2nd, after 2nd the smoke is gone. What do you think it is. Also when I sit at idle for a while you can smell the gas, card idles great and some times is hard to start. But all over it moves and I can feel the difference with the cam..big difference!! also i'm not losing oil or water.
thanks
jonny

ps: I the proud owner of a used 86 iroc-z
5.0 tpi, 4 wheel disk brakes, posi 3.23 rear gear, t-tops, straight no dents perfect black paint, with flowmaster exhaust system and a blown tranny..(cause of tranny, I bought the car for $1000 with a blue tittle) cars has been sitting for 6 years..

------------------
MODS:
14X3 OPEN ELEMENT K&N AIR FILTER, UNDERDRIVE PULLIES,
REMOVED SMOG CRAP,LT1 CAM,HEADMAN HEADDERS, CUSTOM Y PIPE,
CUT OUT (WERE KAT US TO BE)3 INCH ALL WAY TO FLOWMASTER MUFFLER,
HYPERTECH CHIP STAGE 2, 160 THERMO,160 FAN SWITCH,B&M COUNSLE RATCHET SHIFTER,
B&M SHIFT KIT , TRANNY COOLER, AND 410 GEARS

 

I would bet its a vac leak.
My car was doing the same thing and I found a vaccume leak on the brake booster line "the metal tube was broke"
Time for the carb cleaner bath!
SSC

 

The gas smell is probably just the car running richer than you are used to with the new cam. You can advance your timing to get rid of that, it also may be whats causing the black smoke. I have mine set at 18* BTDC and it still smells a little of gas, more noticeable at idle. But if you aren't loosing oil, then I don't know what the white smoke could be.

------------------
1987 Chevy Camaro IROC-Z
L98 TPI 350 (5.7L)
TH 700R-4 Transmission
Borg Warner 7.75" 9 Bolt Rear End with 2.77:1 Gears.

Current Mods: LT4 HOT Cam, Comp Cams 1.52:1 Roller Rocker Arms, LPE High Flow TPI Baseplate, Edelbrock TES 1 5/8" Headers, Catco 3" High-Flow Catalytic Converter, Hooker 3" Aerochamber Cat-Back System, Transgo Shift Kit, Performance Resource Chip, Accel Ignition, K&N Filters, JET TPI Air Foil, All Free Mods, Falken ZIEX Z-Rated Tires.

Best ET: 14.32 @ 97.7mph
(corrected for elevation)

 

Well I just found out that I am losing oil!!!Dammit!!! I dont see how, my car never smoked before??? I dont know what it could be?? At idle or on start up it wont smoke at all, only on 1st and 2nd over 4000rpms after that its fine.(to my knowledge) also when I rev it hard it will smoke a little. What do you think it is?? Thanks for the quick responses guys..

------------------
MODS:
14X3 OPEN ELEMENT K&N AIR FILTER, UNDERDRIVE PULLIES,
REMOVED SMOG CRAP,LT1 CAM,HEADMAN HEADDERS, CUSTOM Y PIPE,
CUT OUT (WERE KAT US TO BE)3 INCH ALL WAY TO FLOWMASTER MUFFLER,
HYPERTECH CHIP STAGE 2, 160 THERMO,160 FAN SWITCH,B&M COUNSLE RATCHET SHIFTER,
B&M SHIFT KIT , TRANNY COOLER, AND 410 GEARS

 

my car does the same damn thing, it's burning oil in 2 cylinders, and when i open it up i kill birds..., gonna pull the motor now for some rings

------------------
86 Camaro with 88 305 LB9 using 86 carb setup, edelbrock performer manifold, 305 S/R Torquer Heads, Hedman Headers, Crane Compucam 2032 edelbrock cat-back, gutted cat, slp underdrive pulley, mallory ignition, 305 h.o dual snorkel air cleaner, hypertech thermomaster chip,160 degree thermostat, 5-speed, 3.23 posi

95 Beretta Z26, 3100 V6, 4 Speed auto, stock

 

Well that sucks!
Did you or the shop put in valve springs or replace any valve related items? It sounds like some thing in the valve train doesent like the bigger cam.
SSC

 

No just the cam, used same lifters and valve springs. Is that bad?? Hope not. Only replaced the timing chain and sprokets. everyting else is the same.
Thanks
jonny


------------------
MODS:
14X3 OPEN ELEMENT K&N AIR FILTER, UNDERDRIVE PULLIES,
REMOVED SMOG CRAP,LT1 CAM,HEADMAN HEADDERS, CUSTOM Y PIPE,
CUT OUT (WERE KAT US TO BE)3 INCH ALL WAY TO FLOWMASTER MUFFLER,
HYPERTECH CHIP STAGE 2, 160 THERMO,160 FAN SWITCH,B&M COUNSLE RATCHET SHIFTER,
B&M SHIFT KIT , TRANNY COOLER, AND 410 GEARS