[andysGTR]

Need some new spark plugs for my r32 gtr with an r34 n1 engine running 500bhp and not sure which plugs or heat range to get?

 

[Clrs]

Need some new spark plugs for my r32 gtr with an r34 n1 engine running 500bhp and not sure which plugs or heat range to get?

NGK7. I use HKS SuperFire Racing, but ordinary NGK are fine.

 

[TCarter]

NGK7. I use HKS SuperFire Racing, but ordinary NGK are fine.

I find the iridium NGK ones to work nicely.

 

[Clark Motorsport]

Trust Greddy 8's made by NGK can't go wrong don't foul up like Denso ones.

Keep them in stock should you need any

Rich

 

[Saifskyline]

I am running greddy 8's as above, they seem to have good reputation online.

 

[nightcrawler]

+1 on greddy 8

 

[peckhs]

bumping an old thread..

I am needing some plugs for my BNR32 and one of my mates is going to pass me some NGK BKR9EIX.

I am using HKS M45 Super Fire.

However, I checked and the plugs are ISO length plugs, meaning they are 2.5mm shorter.

Can I use a ISO length plug? or we must definitely use a JIS length plug?

What are the effects of a shorter length plug?

The ISO is 2.5mm shorter.

Thanks.

 

[Clark Motorsport]

You will need the JIS Greddy plugs. We keep them in stock should you need them. Cheers

 

[Dan ep3 turbo]

Just use bcr8es run 800bhp one these l

 

[Jimbostir]

Get 8 heat range. I run BKR8EIX. They're the iridium version of what dan runs.

 

[peckhs]

Get 8 heat range. I run BKR8EIX. They're the iridium version of what dan runs.

I reckon you know that the plug is shorter.
Have you had any problems running with the 8s?

 

[Dan ep3 turbo]

I reckon you know that the plug is shorter.
Have you had any problems running with the 8s?

There's a spring in coil pack so it makes no diffrence

 

[peckhs]

There's a spring in coil pack so it makes no diffrence

Noted Dan.
Thanks.

 

[Chris_Gojira]

Hi,

For RB26DETT:

Stock Spark plugs (Platinum):
NGK Premium Platinum SPARK PLUG - RB26DETT standard - PartBox Performance and Tuning Parts

Performance spark plugs (racing also available, but not needed for road use)
Stock heat range:
NGK: NGK Racing Spark Plug BKR6EIX - PartBox Performance and Tuning Parts

1 grade colder compared to stock (+/- 450HP):
NGK: NGK Racing Spark Plug BKR7EIX - PartBox Performance and Tuning Parts
HKS: HKS Super Fire Iridium Spark Plug (M Series, JIS Type) - PartBox Performance and Tuning Parts

2 grades colder compared to stock (+/- 650HP):
NGK: NGK Racing Spark Plug BKR8EIX - PartBox Performance and Tuning Parts
HKS: HKS Super Fire Iridium Spark Plug (M Series, JIS Type) - PartBox Performance and Tuning Parts

3 grades colder compared to stock (700+ HP):
HKS: HKS Super Fire Iridium Spark Plug (M Series, JIS Type) - PartBox Performance and Tuning Parts

Regards,
Chris

 

[peckhs]

and so I pulled the plugs out today and this is how the plugs were ..





Looking at the condition of the plugs, I can't help but feel that something is not right ..

the plugs were fitted less than 3 months ago ... I have only brought the car to track once, and other times were using it as normal...

any idea why they have become like that?

 

[MGT Motorsport Ltd]

Hi


What ECU are you using? do you have a wide band on the car? give us a call ask for Garth he will give you some good advice:thumbsup:.


Regards MGT

and so I pulled the plugs out today and this is how the plugs were ..





Looking at the condition of the plugs, I can't help but feel that something is not right ..

the plugs were fitted less than 3 months ago ... I have only brought the car to track once, and other times were using it as normal...

any idea why they have become like that?

 

[peckhs]

Hi


What ECU are you using? do you have a wide band on the car? give us a call ask for Garth he will give you some good advice.


Regards MGT

Using a HKS F con v3.4

 

[Chris_Gojira]

- Injector fauly
- Injector settings wrong
- Ignition settings wrong
- Oil contamination
- Vacuum leak

and the list goes on and on.
Best to have it checked, or if you want to try it yourself swap over the injectors from a good cilinder to a bad cilinder, new set of plugs and try.

Trial and error in most cases but to be sure you don't damage the car it's best to have it checked by a performance shop.

 

[peckhs]

Can it be the plug is too cold?
I am using a #9 now

 

[Chris_Gojira]

On what power / boost?