Spark plugs for gen 3?

cbrtrx

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I see the gen 3 uses a heat range 7 stock now same as the NGK 6510s that are very popular for the older boosted coyotes, NGK does not offer an 8 though. What plugs are people using on their gen 3s besides Brisk? Only other option I see is the Denso ITV24 but I don't hear about many using them.

 

turnswrench

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I see the gen 3 uses a heat range 7 stock now same as the NGK 6510s that are very popular for the older boosted coyotes, NGK does not offer an 8 though. What plugs are people using on their gen 3s besides Brisk? Only other option I see is the Denso ITV24 but I don't hear about many using them.
6510s here.
 

AZ_whippleS550

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Dustin Whipple only says to use Denso ITV24 on a gen 3 Ngk 6510 is the same heat range as oem
 

Jackson1320

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I don’t know why but ford changed the heat range on the coyote in 2020
 
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cbrtrx

cbrtrx

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I don’t know why but ford changed the heat range on the coyote in 2020
It makes sense being that it's a higher compression ratio engine now. I feel the 6510 is the wrong heat range for a boosted set up on a gen 3. I'm trying to see who's been running the ITV24s which is equivalent to an 8 but not too many people I see yet.
 


turnswrench

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On a gen 3? How much boost? Would you happen to have any pics of the plugs after they were used?
25 psi at peak, one ethanol e85. 1,075whp

PXL_20210107_035629172.jpg
PXL_20210107_035611858.jpg
 

15GTPP

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6510’s here as well. Gapped at .26.
 

Grimreaper

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did you guys running old school copper plug gaps come to this decision based on having actual spark blowout? or tuner/installer?
 
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cbrtrx

cbrtrx

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25 psi at peak, one ethanol e85. 1,075whp

PXL_20210107_035629172.jpg
PXL_20210107_035611858.jpg
Those plugs look good but how many miles/passes on them? I'd think at over 15 psi a 7 heat range would be way too hot especially on a gen 3 engine.
 
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cbrtrx

cbrtrx

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Where did you hear this? You may be thinking of the gt500's?
I didn't hear it I've seen it. My new 2020 has heat range 7 plugs, it says right on them. They are NGK plugs manufactured for Ford, the only real difference between them and the 6510 is the gap. The 6510s come with a smaller gap. This is most likely why Whipple is now recommending the Denso heat range 8 plugs. I called them and they specifically said not to use the 6510s on boosted gen 3 cars.
 

Jackson1320

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Where did you hear this? You may be thinking of the gt500's?
Go to any part retailer and put in the information for a 2018/19 and the plugs listed are different than 2020.
Also the stock 2018/19 plugs from ford are discontinued
 

 
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