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DRV2FST DRV2FST is offline
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Join Date: May 2005
Location: Murfreesboro, TN
Posts: 596
I had mine twinplugged and wonder if I should have. On turbo's there is real doubt if it is worth it or not. There are some downsides, more plug cables to buy, more plug cables to come loose, more plugs to buy, more plugs to install in awkard angles (like behind the turbo), custom drilled valve covers, ...

If you do your own work I would be tempted to skip it for now, put in a good AFR guage and see if you think it is necessary. The downside is of course engine out again if it is necessary, unless you do all this testing with engine out. I would guess (because I am not that tecchnical) that twinplugs might be more justified on a CIS car than on an EFI car. With EFI there are more ways you can tune to deal with the issue.

Either way, this is just an owners opinion NOT an expert opinion.
Crashed: Silver 1992 Turbo S2
Sold: '86 930 minor mods; '94 3.6 Turbo; '85 Euro 930 (3.2 Intake, Tec3r EFI, TwinPlug, Garrett Turbo, JE 8.1 Pistons, 505 rwhp)
Old 03-09-2007, 05:20 AM
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