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r3dn3ck · 11-19-2006, 09:14 AM

I have both their plenum and the 75mm TB. The 75's will lean your AF out a bit and they're not any better for our purposes than a 70. I'd stay with the 70 unless you have a blower/turbo.

I really prefer the Accufab TB's to any other. They've always given me the best results and I've never had to adjust the TPS setting with the Accufab but the PP tb's always have to be tinkered with a bit to sort out the TPS voltage.

Expect seat of the pants gains in the top end (not much but some). Typical dyno results are 8-12hp with both the TB and plenum. The Plenum I like because it comes with NPT threaded vacuum inlets so you can upgrade to AN lines from the rot prone hard plastic lines and rubber connectors.

11-19-2006, 09:14 AM	#2 (permalink)
r3dn3ck Wowbagger hates me too! Join Date: Nov 2005 Location: Magrathea/California Posts: 7,180	I have both their plenum and the 75mm TB. The 75's will lean your AF out a bit and they're not any better for our purposes than a 70. I'd stay with the 70 unless you have a blower/turbo. I really prefer the Accufab TB's to any other. They've always given me the best results and I've never had to adjust the TPS setting with the Accufab but the PP tb's always have to be tinkered with a bit to sort out the TPS voltage. Expect seat of the pants gains in the top end (not much but some). Typical dyno results are 8-12hp with both the TB and plenum. The Plenum I like because it comes with NPT threaded vacuum inlets so you can upgrade to AN lines from the rot prone hard plastic lines and rubber connectors.