How rich can i run?

[91jettaidi]

Hey guys just want to say this is my first time posting here. I have been following for a while but finally registered today. I just wanted to know if i can run my 91' Jetta rich . . . . well i no i can but what would be the limit. I am going to get some one to tweak it for me but i love to see the cloud behind me when i put the foot down but i don't want any thing to overhead or go bad so how much is to much thanks.

[gigaz2]

welcome to the forum.

a cloud is too much already.
if your car already makes one, manifold needs cleaning because of years of pent up EGR and oil vapour
most cars don't need more power, they need maintenance to get the lost power back

[91jettaidi]

ya but i do like smoking people i mean i only want it to smoke when i put my foot down not when i drive normally but would it still be alright to tweak it rich and what should i clean? the car has been sitting for about 8 months and i still didn't change the oil but i drove it for about 10 min and thats about it.

[oldskool rich]

its always worth cleaning the inlet manifold and ports, they get clogged up to ***.

if your timing is right then black smoke is too much fuel not enough boost, there will always be a period wen there is more fuel than boost but smoke shud clear wen the turbo kicks in, if its still black then your running too much fuel that its not getting burned or not enough boost and you can tighten the bleed valve a little more, your choise

as long as you run a 2.5" down pipe then EGT shouldnt be a problem, best get a gauge just to make sure


what engine are you rolling with in the jetta, what mods you done?

[91jettaidi]

well i got the 1.6 with the KKK turbo on it but its been sitting for 8 months the guy said it was a bad fuel pump but was just the wire on the solenoid. I am planning on running either a 2.5 or 3 inch straight pipe and tweaking it to run a bit rich and turn up the turbo a bit but when i put the foot down i would like to just see black behind me with out any damage to my engine.