Just a Little Insight Needed

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10-31-2009, 11:55 AM
newjade

Just a Little Insight Needed

Hi all. I am new to the forum and in need of a little guidance. I am in the process of changing over a Triumph TR6 from the 2.5 liter inline 6 over to a later model Chevy 4.3 liter V-6 with a TBI and hooked up to a 700-R4 transmission. My question is, I am unsure of whether to stick with the wiring harness that came in the donor vechile, or buy a custom wire set. I plan on keeping the TBI set up as well as the lockup converter, so I will need to move the ECM over to the Triumph. As I will be getting around a 75 HP boost even in stock form, I want to keep engine mods simple, streetable, and economical, but I would like to see about another 25 or so HP. What mods would you guys recommend for this small gain. Also, as the donor vechile came with electronic speedometer, I will need at least a new speedomete if not all new gauges. What brand would you guys recommend for this. Thanks all.
10-31-2009, 03:19 PM
Dave Severson

Welcome to CHR newjade.... Can't help you a lot with the efi stuff, it's above my pay grade, I'm still a carb guy!!! I have put together a couple of cars with EFI, we have a guy here locally that does all the wiring harness mods, makes it a simple plug and play deal... I've also done them with a Painless harness, even easier!!!!! As for the V-6, friend of mine runs one in his roadster. He put a chip and stainless headers on it last spring, helped a bunch on the performance!!!!!!
11-02-2009, 05:49 AM
35fordcoupe

I sent my LT1 engine harness to LT1 Wiring to clean it up. they removed all the emissions and anti theft type stuff, put in fan and fuel pump relays and it came back with all the dash wires labeled and ready to hook up. They also reprogrammed the computer. It was about $275 and sure beat the ~$750 a new harness would have cost. I don't have the harness in permantely yet, but everything seems straight forward not to mention I labeled everything before removing it from the camaro (not sure if you had that option). They seem to work with most late model GM harnesses so I recommend them! (someone here, forget who, recommended them to me)

LT1350.com