Question about Tuned port injection

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Jul 31, 2004 | 07:26 PM

drewcoolness99

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From: TEXAS!!!!!!!!!!!!

Question about Tuned port injection

theres a guy next door with a camaro with an LS1 in it. He says that you don't have to set initial timing. Just set it to 0 and the computer does the rest. I said you have to set the initial timing then the computer handles the advance. Hes running all msd ignition. Whos right?

Jul 31, 2004 | 08:56 PM

FordLariat

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From: pound

You should be able to set it to 0 and the computer will set the timing automatically. If you have an aftermarket chip, you may have to set the initial timing.

Jul 31, 2004 | 11:54 PM

benwantland

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I don't think an LS1 even has a distributor... there is no timing to set, it has individual coils for each plug.

But are we talking about an LS1 for sure? You're mixing a couple of GM engine nomenclatures -
Tuned Port Injection (TPI) - Common name for 80's-92 first gen multiport FI
LT1 - The next camaro and corvette engine, used distributor driven off of cam, made from approximately 92- 97
LS1 - All new small block, plastic intake manifold, coil-on-plug ignition, used from 97 up in vettes, 98 up in camaros

Aug 1, 2004 | 08:20 AM

IB Tim

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Aug 1, 2004 | 09:15 AM

jaydez

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From: Middlebury, CT

TPI and the LS1 are 2 different things. the LS1 is a DIS so it has no way to se the timming unless you have a tech2 tool.

the TPI does have a base timing that you set at 0 degrese advance.