first off lets see if anyone can figure out my problems, i just put my LT4 blower motor in and after i broke it in i started beatin it around and anytime i take it past 5,500 to 6,000 it starts breakin up. any ideas? i dont have a blower on it yet. could it be time for a better ignition?mods are:: 383 Lt4 6spd,ported heads,9.5:1 comp,58mm TB,ram air,MSD coil,255lph pump,long tubes,stock opti,crower blower cam,comp is programed to this new setup.

also i started my car the other day and my security light didnt go out until 5 minutes later? is my key goin bad?

STUFF FOR SALE:: PICS AVAILABLE EMAIL ME

Forged 350 crank cut .010 under $250+S&H

Forged H beam 6" rods ground for clearancing $150+S&H

$350+S&H for both

BMR Tubular red lower control arms with grease fittings needs new bushings 30+shipping

CARPETED CUSTOM SPEAKER BOX CUT FOR (2) 12" SUBS
NEVER USED FITS IN THE TRUNK, SITS FLUSH WITH THE TOP OF THE TRUNK 100 LOCAL PICK UP

pass side headlight assembly (black) 170 shipped
HEADLIGHT+MOTOR 180 SHIPPED


6spd swap
low mileage 6spd trany
comes with 6spd pedals
slave cylinder
Fidanza aluminum flywheel used one summer($400)
McLeod street twin clutch used one summer($600)
B&M ripper shifter
white shift **** with built in button
will include top of center council
askin 2200 OBO id like local pick up if possible. it is still in my car so if you want a ride we can arrange it

a/c compressor 75 shipped

AIR PUMP 30 SHIPPED

 

You didn't mention injectors. I'd venture to guess you're running out of fuel.

 

I don't quite think you understand how confused I was by your wording. I couldn't imagine why you'd need to break in a blower motor, or even know how many RPMs it was spinning at. NOR Why your ignition, or other mods would impact it LOL Then I figured you must be talking about Blown (Supercharged) LT4

Yes, I vote for Injectors.

 

Yeah, I was thinkin the same thing.

+1 for the injectors

 

i dont know i have 30lb injectors runnin N/A shouldnt that be enough? i have my fuel press. set at 43-45 should i turn it up some?

 

Wait, so you're running a motor set up for boost, but you're not running any boost?

I'd say it's because of just that. Motor wasn't made to run w/o boost. Cams are set up with boost in mind.

 

Possibly interested in T56. PM me with details when you get a chance.

Thanks.

Ruben F.

 

What make of crank? Is 4340 or 5140 forged? How many miles on the h-beam rods and crank?
HVY SS

 

i have the computer programed for the motor without boost. i dont think thats why

 

anybody have any other guesses?

anyone interested in anything thats forsale?

 

Programmed or not, the cam being a boost cam could still be the problem. Afterall, you didn't build the motot.