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Thread: proper ecm chip
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01-02-2008 #1
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- Oct 2007
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- ridgefield ct
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proper ecm chip
i'm wondering what chip would work best in my car. i have a 383, 9.7:1 d-dish pistons, xe274h-10 cam and vortec heads. i have the stock, computer controlled distributor with a 305ho chip in it. for best performance do i use a high performance 305, a standard 350, or a HP 350 chip? it works well so far but i of course want everything out of it that i can. the computer is hooked to a knock sensor, ECT sensor, MAP sensor and of course the dist. evrything else is disconnected and about to be removed.
thanks for your help.
work in progress--for the next 10 years.
1987 monte carlo ss 383ci, 9.7:1, xe274 cam, vortec heads, 200r4, 3.73 posi.
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01-14-2008 #2
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- Aug 2005
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- 198
If all it is really controlling is timing, I would think they would all have similar curves. If your still using the TBI, I would run the computer that matched the TB and have Affordablefuelinjection.com burn you a chip that can best suit your cam, eliminate unused sensors and match the demands of the better heads.
68 Chevelle SS396. Pro-touring in Progress
Pro-jected 396, TKO 600, 3.90'd 12 bolt, LS1 brakes.
01-14-2008 #3
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- Oct 2007
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- ridgefield ct
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- 876
it's still carbed. people always talk about changing their weights and adjusting the vac advance on a traditional distributor so i figure the electronic one is a bit behind. especially on a curve intended for an emissions 305.
work in progress--for the next 10 years.
1987 monte carlo ss 383ci, 9.7:1, xe274 cam, vortec heads, 200r4, 3.73 posi.
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