98hc4mula

iTrader: (5)

Here is my setup

HKE 408/ AFR 205's,ARH 1 7/8 w/Catted Y,Fast 92&NWTB,K&N FIPK,HS Modified rockers,Pwerbond UDP. 11.2:1 CR tuned for the street on 93 octane.


circle D 4l80e and Circle D 3C converter.
konis,Adj PHB, 1Le Front S-Bar. MWFab9 3"short,Tunnel mount TA,MW LCA,Wavetrack w/4.10 gears,3.5"PST alum DS.
Billet Specialties 17x11 4.75 bs,17x7 fronts.
Best 11.2@120 1.56 60'

Im having a hell of a time tunning the cars Idle. It surges like crazy. I have tried everything I can think of with no luck.
I need to change the plugs bc its running too rich and I think they are fouled.
it was registering anywhere from 10-11.5 AFR

Cape T/A

What are u running now? Dont really think your wheels are necessary to know when picking plugs, lol

Z28/2002

iTrader: (27)

Something a step or two colder than stock

jksellers87

try e3 diamond fire plugs carb or injectors?

BriancWS6

iTrader: (18)

Ngk tr6

98hc4mula

iTrader: (5)

Lol. I copied my signature for the post. And didn't you know wheels are important for the car to run right haha

98hc4mula

iTrader: (5)

Ordered some tr6. That's what im running buy wanted to make sure they were right.

PREDATOR-Z

Tuning should be your concern

98hc4mula

iTrader: (5)

the reason I asked about the plugs is bc I think the plugs are fouled. I have been trying to get the idle right but it is surging like its nobodies business.

PREDATOR-Z

With HPT,
>Engine
>fuel control (This is the area you need to modify.)
>general Fuel (aftersart enrichement) {Take a look at the tables}
Also check Accel enrichement (not for idle though)

SVThuh

iTrader: (2)

NGK TR6 would be a great plug for your setup.

The next step colder plug is a BR7EF and it may be a bit too cold unless your going to be running n2o or boosting it.

What plugs are you running now?

trans_am7935

iTrader: (15)

so am i getting this right, heads and cam require colder then stock plugs?

PREDATOR-Z

Not necessarily. Colder plugs will only compound the problem here if running rich. This is a tuning problem.

BriancWS6

iTrader: (18)

When you increase power as much as adding bolt-ons, heads, and cam does, it's time to go to a colder plug.

trans_am7935

iTrader: (15)

i am also getting the .040 MLS head gasket with 61cc chamber heads, i will be just over 11:1 compression, i was told with any more compression then stock, colder plugs is a must.

PREDATOR-Z

Guys, there is a protocol to follow.
READ your plugs, if the flame burns too close to the tip, then yes you need 1 step colder, if the flame is firing correctly, it is not necessary.
That is how you determine if colder plugs are needed.
The cam plays a role (DCR).

trans_am7935

iTrader: (15)

thanks, so i will use my already installed plugs after my heads and cam swap, then check them in 10 miles or so and make a decision form there