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IBM camaro 05-15-2013 04:46 AM

Spark plugs on FI
 
I'm getting close to 64k miles on my car and I'm gonna get we spark plugs right now I'm full bolt on with the IPF supercharger kit what kinda of gap and brand do I need? Same or something different?
FI experts please help thanks

Can't_C_Me 05-15-2013 08:45 AM

NGK LTR7IX-11 $8.99 or Autolite XP5263 $5.99-$6.99 (also been seen to have a $2 mail in rebate). I've used both and like the Autolite better and their easy to find while being cheaper. Both gapped at .032 for FI sometimes a retune maybe needed. So check the gap on your current plugs and go with that if your car is running good now at that gap for your tune.

hunterv6 05-15-2013 08:57 AM

Quote:

Originally Posted by Can't_C_Me (Post 6545994)
NGK LTR7IX-11 $8.99 or Autolite XP5263 $5.99-$6.99 (also been seen to have a $2 mail in rebate). I've used both and like the Autolite better and their easy to find while being cheaper. Both gapped at .032 for FI sometimes a retune maybe needed. So check the gap on your current plugs and go with that if your car is running good now at that gap for your tune.

+1

IBM camaro 05-15-2013 09:25 AM

Thanks guys :)

PoorMansCamaro 05-15-2013 09:44 AM

Quote:

Originally Posted by Can't_C_Me (Post 6545994)
NGK LTR7IX-11 $8.99 or Autolite XP5263 $5.99-$6.99 (also been seen to have a $2 mail in rebate). I've used both and like the Autolite better and their easy to find while being cheaper. Both gapped at .032 for FI sometimes a retune maybe needed. So check the gap on your current plugs and go with that if your car is running good now at that gap for your tune.

i'm hearing NGK LTR7IX-11 iridium is not good for FI...or maybe it was just for nitrous that it's not good for. :iono:

sycraft 05-15-2013 11:30 AM

Quote:

Originally Posted by NOT URSS (Post 6546549)
what about ZR1 LS9 Plugs?

We are talking V6 engines here..

Mine are gapped at .035

NOT URSS 05-15-2013 11:42 AM

lol i see that now

Ventmaster 05-15-2013 01:10 PM

These are the recommendations I got from Jesse- approved by Arno for use with the IPF S/C kit:

Listed below are the 2 replacement plugs that are 1 heat range colder than stock:

Denso Iridium plug: 5340 = ITV22
14mm Thread Size,
25mm (.984") Reach,
5/8" (16mm) Hex Size,
.031" (0.8mm) Gap
Heat Range 22 (one step colder)

----------------------------------------------------------
NGK Spark Plugs #739-LTR7IX-11
Iridium IX Spark Plug
14mm Thread Size,
25mm (.984") Reach,
5/8" (16mm) Hex Size,
.044" Gap stock Need to Gap @ .031
Heat Range 7 (one step colder)

I've not had the opportunity to personally experience either yet...
so can't offer any other insight.:pop2:

Nutbutt 05-15-2013 01:27 PM

I am running the NGK at the specs Arno recommended and the car is running great !

BaylorCamaro 05-15-2013 03:34 PM

Quote:

Originally Posted by Ventmaster (Post 6547050)
----------------------------------------------------------
NGK Spark Plugs #739-LTR7IX-11
Iridium IX Spark Plug
14mm Thread Size,
25mm (.984") Reach,
5/8" (16mm) Hex Size,
.044" Gap stock Need to Gap @ .031
Heat Range 7 (one step colder)

I've not had the opportunity to personally experience either yet...
so can't offer any other insight.:pop2:

Dang that is a tight gap!

I've been running the NGK's first at 0.037 then everyone talked about how the gap should be around 0.032. I closed the gap to around 0.034-.035 and at seemed to stumble a little bit at idle I open it up to 0.036 and fixed it but I get a stumble every now and then. I actually just had a misfire on my number 6 cylinder two days ago. From all the messing around I've been doing with my tune I might have fouled up the plugs.

I just ordered new NGK's and will mess around with it this weekend.

I had discussed with Vince if I needed to change around the tune for a smaller gap and he told me to use whatever gap "works." So I'm not sure wtf I need to do, tbh. lol.

I think for the IPF guys it is pretty well understood that 0.032 is the standard.

Vader2011v6 05-15-2013 09:38 PM

What is the stock gapping and what kind of plugs are stock? I've not done anything to my spark plugs since I got the kit. I'm running all stock specs

JohnnyBfromPeoria 05-15-2013 09:42 PM

Me too, Vader. I have a replacement set sitting on the table, but I just never get around to changing them out.

John B.

Vader2011v6 05-15-2013 10:03 PM

Quote:

Originally Posted by JohnnyBfromPeoria (Post 6549105)
Me too, Vader. I have a replacement set sitting on the table, but I just never get around to changing them out.

John B.

When is it recommended to change them with the supercharger. I have 35000 miles on my car

JohnnyBfromPeoria 05-15-2013 10:06 PM

Any time would be fine, really. They're cheap.

John B.


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