98transguy

iTrader: (7)

just got fast 90/90 combo installed on car. tried to start car today and it has trouble getting it to idle. have to give it gas for a few seconds before i can let go and have it idle. does it every time after i shut off car and try to start it again. i heard something about drilling a hole in the blade of the throttle body? could this be a reason it wont idle? opinions?
thanks guys

CRL 01 SS

iTrader: (4)

You need to drill the hole bigger in the TB blade to let more air into the engine at idle.

98transguy

iTrader: (7)

what size does it need to be drilled out to? and if they know this problem why doesnt fast drill the hole larger to begin with?

Detroitmuscle

iTrader: (16)

Drill a small hole, can be even smaller than the one in the stock TB and you should be fine.

TryingT/A

iTrader: (5)

That seems like the problem with fast. The suction over the blade causes the blade not to close while the car is running. Some drill a hole, some mess with the screws. Slow Trap resolved his issue by putting on a return spring on the t/b. Someone did that but couldn't get 100% throttle due to a heavy spring.
I would resort to drilling last. will post the link if I find it

Oh yeah, hole size drilled is usually 1/8 inch like the stock (I think)

TryingT/A

iTrader: (5)

Here's the link
https://ls1tech.com/forums/showthrea...sticking+blade