Pulley Swap

naturespower · 11-12-2008, 08:43 PM

Ok, I had a 99 lightning back in 99. I sold it in 01 and have been out of the performance scene since. I just bought a 03 lightning and i just put a 2.80 upper pulley and a 9.25" lower pulley on today. I took it for a test drive and it seems to be bogging down. like it is starving for fuel. I have a friend who has the hp software and in the morning he is going to do some tuning. any thoughts on what setting need to be change and where to set them. Please help...

naturespower · 11-12-2008, 09:07 PM

Any thoughts would be great has anyone installed the same set up if so what tuning did you do and what results did you get

Micstiffy · 04-05-2009, 08:43 PM

Probably needs tuning and possibly more fuel. Do you have a fuel/air gauge?

sonicsvt04 · 04-05-2009, 09:46 PM

one of the first things i would do is check the spark plug gaps. you need to close them down if you have pulleys because all the extra air going through the chamber blows out the spark. and a tune would probably not be a bad idea either

11-12-2008, 08:43 PM	#1 (permalink)
naturespower Registered User Paid Member Join Date: Nov 2008 Location: Katy,TX Posts: 37 NLOC member #: 2655 View this user's gallery iTrader: 0 / 0%	Pulley Swap Ok, I had a 99 lightning back in 99. I sold it in 01 and have been out of the performance scene since. I just bought a 03 lightning and i just put a 2.80 upper pulley and a 9.25" lower pulley on today. I took it for a test drive and it seems to be bogging down. like it is starving for fuel. I have a friend who has the hp software and in the morning he is going to do some tuning. any thoughts on what setting need to be change and where to set them. Please help...

11-12-2008, 09:07 PM	#2 (permalink)
naturespower Registered User Paid Member Join Date: Nov 2008 Location: Katy,TX Posts: 37 NLOC member #: 2655 View this user's gallery iTrader: 0 / 0%	Any Thoughts Any thoughts would be great has anyone installed the same set up if so what tuning did you do and what results did you get

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04-05-2009, 08:43 PM	#3 (permalink)
Micstiffy Registered User Join Date: Apr 2009 Posts: 5 View this user's gallery iTrader: 0 / 0%	Probably needs tuning and possibly more fuel. Do you have a fuel/air gauge?

04-05-2009, 09:46 PM	#4 (permalink)
sonicsvt04 2004 sonic blue #1140 Join Date: Mar 2009 Location: bergen county nj Posts: 46 View this user's gallery iTrader: 0 / 0%	one of the first things i would do is check the spark plug gaps. you need to close them down if you have pulleys because all the extra air going through the chamber blows out the spark. and a tune would probably not be a bad idea either