Spark plugs on FI

[IBM camaro]

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]

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]

Originally Posted by Can't_C_Me

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]

Thanks guys

[PoorMansCamaro]

Originally Posted by Can't_C_Me

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.

[sycraft]

Originally Posted by NOT URSS

what about ZR1 LS9 Plugs?

We are talking V6 engines here..

Mine are gapped at .035

[NOT URSS]

lol i see that now

[Ventmaster]

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 à 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.

[Nutbutt]

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

[BaylorCamaro]

Originally Posted by Ventmaster

----------------------------------------------------------
NGK Spark Plugs #739-LTR7IX-11
Iridium IX Spark Plug
14mm Thread Size,
25mm (.984") Reach,
5/8" (16mm) Hex Size,
.044" Gap stock à 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.

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]

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]

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]

Originally Posted by JohnnyBfromPeoria

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]

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

John B.