boochacas

iTrader: (1)

What are the best spark plugs out there?

BMR Sales2

iTrader: (40)

It really depends on what is done to your car and what you do with the car itself. Tell us some more about your car and we will be able to help you out better.

boochacas

iTrader: (1)

Well what happened is that I'm only getting about 10 or 11 mpg. I started to do some research and fount out it could be a air to fuel ratio, dirty maf, bad plug wires, bad or not a good brand plugs ect. Basically I want my car to give me more that 170 miles per tank. I decided to start with plugs and wires as they are due. My mods are SLP MAF, SLP air lid, k&n filter, SLP bellow, oil catch can, gutted cats, O2 simulators, SLP loud mouth exhaust. My car has never been tuned.

boochacas

iTrader: (1)

I use it as a daily driver

BMR Sales2

iTrader: (40)

As far as spark plugs go I would use the NGK TR55 spark plugs along with a s good set of MSD or Taylor spark plug wires.

While you are doing your tune up I would also change out the fuel filter.

Majestic9C1

iTrader: (19)

I run TR55's in mine and so far they are doing well

Paul Bell

iTrader: (9)

What vehicle is this in?

boochacas

iTrader: (1)

2002 z28

Paul Bell

iTrader: (9)

Although many here have had good results with the NGK plugs, my truck killed at least one NGK plug every week. Stock engine, the correct plugs.

I switched to original equipment ACDelco plugs problem gone and they've lasted many thousands of miles.

josh4ku

iTrader: (10)

stock ac delco plugs here... They are good.

scotty2000ss

iTrader: (2)

Would you recommend different plugs if you have an aftermarket cam, headers and an intake on an ls1?

Paul Bell

iTrader: (9)

I'll stay with ACDelco for plugs. I'm doing a motor with 230 AFR heads and a .634 lift cam and I'm using the ACDelco equivalent to what AFR recommends to use.

josh4ku

iTrader: (10)

I'm building a 700 hp turbo 5.3 and going to use new ac delco wires.

dr_whigham

iTrader: (49)

Paul you'll need to be colder than stock for the HP increase... You know that. Run a TR6 in a heads / cam car.

Paul Bell

iTrader: (9)

It's the AFR 230 heads. Their instructions say to start with A/C #41-985 spark plugs, that's what I have waiting for the heads. When I dyno, I'll try up a range then down a range.

dr_whigham

iTrader: (49)

They all say that. My 205's said the same. When adding HP & compression, it's a no brainer to go a step colder. Your tuner will tell you the same thing. Just don't want to see you spend money and do work twice, that's all

Paul Bell

iTrader: (9)

Wasn't that the fun in all this??