Considering a 5.9 EFI swap into 68 Val -833 O/D car

Considering a 5.9 EFI swap into 68 Val -833 O/D car

JCB, I have read many of your other posts and I was hoping you'd chime in.

My idea is to just get the stock 5.9 in the car (maybe with the headers) via the Hotwire harness, and get everything shook down and working. Then save the $'s for the engine upgrade. The hitch was whether or not the stock PCM would do both the stock motor and subsequent upgraded motor. Sounds like the answer is YES! Cool.

This makes for a few more questions too.

Do you know how much HP/Torque you were making with your 5.9 that just had the cam, headers and injectors? How did it drive? Pull good, etc?

Do you know how much HP/Torque your 408 is making? At 10.25 to 1 can you run pump gas in it? I always heard you had to stay below the 10 to 1 ratio to run pump fuel.

Do you have contact info for Sean (Hemifever)? Or can you tell me what the programmer and tunes cost? And how many tunes can you hold on your programmer? It would be nice to have a highway mileage cruise tune and a makin' power gettin' nasty tune.

What is wideband? I assume it has to do with O2 sensor? What are the benefits and what mods are necessary to use/install it?

Thanks again,

CE

jbc426 said
I'm running a reflashed 1998 factory Dodge Ram 2500, 5 speed ECU in my 68 Barracuda convertible. The same ECU was reflashed to run my previous otherwise stock 5.9 with a bigger Hughes roller cam, headers and bigger injectors.

Recently I reflashed it for a fresh 408" motor with ported Eddie headed, match-ported Airgap intake, Hughes Big Gulp throttle body, 10.25 to 1 compression, with even a bigger cam and injectors.

Same ECU made both motors run excellent using a Hotwire Hotrod harness. I went with a guy named Sean aka Hemifever for the handheld programmer and tunes. He's good at what he does! Fresh tunes are emailed to me, I download them into the handheld tuner and upload them into my ECU. I send him a video clip of the wideband readings and the car driving on the road from cruise to full throttle and he tweaks the tunes to optimize them.

It's as plug and play as it gets. If I went aftermarket, I would use the Holley ECU's.