What spark plug?

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Mar 27, 2012 | 12:58 PM

scooter k

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What spark plug?

TSP 408, 9.5:1, GT91 turbo 20-25psi, on E85. I'm shooting for around 1000rwhp. I have no clue which plug to go with.

Mar 27, 2012 | 07:02 PM

scooter k

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Br7ef???

Mar 27, 2012 | 07:06 PM

Camaro9969

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From: Granby, Mass

Ya that or the efs only differnce is the V power but both will work well maybe regap them a little smaller. they come i believe 30 out of the box

Mar 27, 2012 | 07:10 PM

89ROC-Z

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That setup on 20 psi is going to go way beyond 1000...

Otherwise i really don't know on the plug. Is boost just like n2o were you don't want a projected tip?

Mar 27, 2012 | 07:17 PM

scooter k

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It's in a 4x4 truck through a 4L80. I guess I don't know what it will do for sure.

Mar 29, 2012 | 07:21 PM

scooter k

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bump..... BR7EF plug then? Or is this going to take a 9 or 10?

Mar 29, 2012 | 08:23 PM

koolrayz

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From: mansfield ohio

I would start with an 8 or 9 and see what it likes from there. Better off to err with to cold of a plug when tuning then to hot

What spark plug?

What spark plug?

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