Just got back from the Dyno and made 384 RWHP and 494 RWTQ (SAE) with an A/F ratio of 12. Guess I had expected a bit more , but my tuner said it was due to my plugs and gap.
Currently I'm running NGK TR6@.048. He told me to get some Motorcraft AGSF-12C@0.35 and I would get close to the 400/500.

So I searched the forum and found some info that the AGSF is for the post November 2002 heads with 8 threads, and the AWSF is for the 4 threads heads. Is that correct or can I use either one for my 4 threads head?

 

Some info I found on another thread...


MOTORCRAFT

PART# / HEAT RANGE
AWSF-32C / stock heat range - copper plug
AWSF-22C / 1 Heat range colder - copper plug
AWSFA-12C / 2 Hea range cooler - copper plug
AGSF-32C/ Recommended for FRPP heads(not sure on heat range)

NGK

PART# / HEAT RANGE
TR-55/ 3951/ Stock Heat Range
TR-6/ 4177/ 1 Step Colder
BP7EFS (PN - 3526) BR7EF (PN - 3346) two steps
R5724-8 (PN - 7317) two and a half steps
R5724-9 (PN - 7891) three steps
R5724-10 (PN - 7993) four steps

AUTOLITE

PART# / HEAT RANGE
764s / Stock
103s / 1 heat range cooler
AR94 / 2 heat range cooler
AR93 / 3 heat range cooler
AR92 / 4 heat range cooler

CHAMPION

PART# / HEAT RANGE
YS-59C / -3 or -4 below stock heat range

DENSO

PART# / HEAT RANGE
IT16 / stock heat
IT20 / -1 heat range
IT22 / -2 heat range
IT24 / -3 heat range

 

Your NGK TR-6's are fine just gap them closer like 38 your gapped to wide and could actualy be blowing out the spark.
If you set them to 38 I'm sure you will be able to tell the dif. not sure on the HP gains but the plug will perform better.

Suavy

 

ok, so no need to go 2 ranges colder even with a #8 lower pulley.

Thx!

 

quote"2002 Black Lightning, MAC air filter, Accufab TB, JDM/Kooks/Magnaflow exhaust, #8 lower pulley, TR6, Superchip, Rancho bars, 2" shackles
RWHP: 384
RWTQ: 494


Those numbers are not very good porsen...Who is your tuner?

 

That's what I thought. What should it be?

It would be unfair to disclose the name of my (local) tuner as he's only had one shot at it so far. He told me to get a new air intake as the current was a bottleneck with it's 80mm neck. I'll work with him a little more since I got unlimited reburns from him

 

I think thats what tuning is all about, instead of bashing the guy right away. Good attitude. As long as he's keeping your a/f safe and your timing reasonable....let him work it up slowly until your making good power.

On a side note...my personal opinion is...you got too much pulley! At least get a good aftermarket heat exchanger to help keep that sucker cool!

 

Never heard of such a thing as to much pulley

I know, I know, I'm pushing the envelope when using the L as a daily driver, but once on a #8 there's no turning back (until I blow a plug)

JeffsLightning, what numbers would you have estimated from the mods?

 

You should be about 420 hp and over 500 TQ. TR6 is fine just change gap to 35 to stop blow out. What type of chip are you using, and what is the temp there??????

 

At least that...Can you get dyno tuned?

 

It was 10am and the temp was around 80. The chip is the new red single position SCT 4 bank chip from Superchips and the tune will be checked further on the next Dyno day.

Any hints on the thread count on the AGSF and AWSF type plugs, respectively?

 

porsen
Like Suavy said the TR6's are fine, just gap them at .038

I run the TR6's and I have over 630RWHP and I know guys with more HP running them too.

 

ok then, enough said

Thx.