Spark Plugs for bigger turbo???

[BlacktopturboSX]

I'm running a GT2871r .64 turbo with 850cc injectorsDo i need different Spark plugs than a NGK BKR7E's gapped to .022?

????

[RPS13 DRIFTER]

i know the heat range 7 is used for "mild horsepower" i think there made to be gapped at 30.

[DrifterProdigy85]

Im gonna be running BKR8EIX gapped to .025" with my T3/T67 setup.

[seanman]

ok so since were on the subject of turbo's, can someone explain what the T67 part is of the turbo description? and as far as the GT2871r goes, i get the gt28 but whats the 71r? im no noob to engines, just a bit to turbo descriptions

[S14toRPS13]

I'd say if you want to boost more than 15 psi then go with heat range 8 plugs. I'm using heat range 8 plugs cause I was planning to run 17 psi, but my wastegate actuator only allows me to run 14 psi . It runs fine except I have to warm up my engine for about 5 minutes and let my spark plugs get up to normal operating temp before my engine will run smoothly.

[WoolyS14DET]

I hate cold starts !!!!

[DrifterProdigy85]

2871R broken down is Garretts GT28 Turbine Wheel with a 71mm exducer of the Compressor Wheel.

People generally refer to the T04R or T04Z as the T67 because the Compressor Wheel inducer is 66.7mm. The exducer is 84mm which is greatly larger than the 2871R.

Heres a picture showing the parts of the Compressor/Turbine Wheel.

[seanman]

oh sweeeet thanks dude!