A Complete Advancement for the V6 World - Pontiac G8 Forum: G8 Forums - G8Board.com
 
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post #1 of 8 (permalink) Old 04-25-2014, 10:56 PM Thread Starter
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A Complete Advancement for the V6 World

As much as I would love to dive into my northstar swap, I can't get me head away from a twin turbo V6. So I am still deciding between the two. That being said, I have my modified 6L50 which I started tuning this week and I've been trying to get it to shift to my liking. The reasons that my 6 speed and 3.45 gears weren't a finished product were because:

1. Under WOT it would hit the rev limiter before shifting
2. Sport/Manual mode did not work because the donor car I got the transmission out of used the hardwired method to wire the shifter vs the serial method the G8 uses.

The first problem I was able to iron out with HP tuners in about an hour of trial and error.

The second issue, however, was not as simple. I first tried the obvious- changing the option from hardwired to serial. But that did nothing. I sat around scratching my head trying to figure out how I could do it and on my way home tonight it hit me-

I took a stock G8 GT transmission tune. Flashed the module with the whole package and then wrote my calibrations into that software. And for an extra two credits, I now have a fully functional and seamless six speed automatic in a V6 G8.






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Don't mind the CEL, it is because the ECM lost communication during the flash and I was too excited to test it to bother clearing it before the road test lol


2008 Pontiac G8 | LY7 V6 | 6L50 AT Conversion | 3.45 LSD Rear Differential | Panther Black Metallic | GT Tail Lamps | Red Leather Seats | GXP Rear Diffuser

1957 Oldsmobile 98 | 371 Rocket V8 | J2 3x2 Tri Power| Jetaway Dual Coupling Hydra-Matic | Sierra Gold | Magnaflow Dual Exhaust | Autronic Eye
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post #2 of 8 (permalink) Old 04-26-2014, 12:07 AM
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That is really good news.. Glad you ironed it out. maybe now us V6ers can start making some horsepower..

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post #3 of 8 (permalink) Old 04-26-2014, 05:43 AM
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Love the 6 speed swap. I personally am against the Northstar motor due to my disdain and hatred for it from experience. The twin turbo would be awesome, but if you were going to do a V8 swap just drop an LS motor in it.

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post #4 of 8 (permalink) Old 04-26-2014, 10:54 PM Thread Starter
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Quote:
Originally Posted by Zodiac View Post
Love the 6 speed swap. I personally am against the Northstar motor due to my disdain and hatred for it from experience. The twin turbo would be awesome, but if you were going to do a V8 swap just drop an LS motor in it.

I'm doing serious research on turbos as we speak



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2008 Pontiac G8 | LY7 V6 | 6L50 AT Conversion | 3.45 LSD Rear Differential | Panther Black Metallic | GT Tail Lamps | Red Leather Seats | GXP Rear Diffuser

1957 Oldsmobile 98 | 371 Rocket V8 | J2 3x2 Tri Power| Jetaway Dual Coupling Hydra-Matic | Sierra Gold | Magnaflow Dual Exhaust | Autronic Eye
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post #5 of 8 (permalink) Old 04-27-2014, 12:29 AM
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the newer camaro heads are set up for turbos and the cts has the turbos

09 G8/GT stryker blue 12.13 @ 114 , best mph 115
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post #6 of 8 (permalink) Old 04-28-2014, 01:47 PM
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[QUOTE=kgenesse;2219490]I'm doing serious research on turbos as we speak

Have you found out any advancements yet in the turbo options?
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post #7 of 8 (permalink) Old 04-29-2014, 03:54 PM
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Quote:
Originally Posted by Zodiac View Post
Love the 6 speed swap. I personally am against the Northstar motor due to my disdain and hatred for it from experience. The twin turbo would be awesome, but if you were going to do a V8 swap just drop an LS motor in it.
When you say swap a v8 in there what all would we have to do/ replace along with it. I would think a transmission. I really think about doing that some days but i don't really know how much it'll cost.

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post #8 of 8 (permalink) Old 04-29-2014, 04:02 PM Thread Starter
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Originally Posted by currie618 View Post
When you say swap a v8 in there what all would we have to do/ replace along with it. I would think a transmission. I really think about doing that some days but i don't really know how much it'll cost.

Just the basics are over 6k in parts


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2008 Pontiac G8 | LY7 V6 | 6L50 AT Conversion | 3.45 LSD Rear Differential | Panther Black Metallic | GT Tail Lamps | Red Leather Seats | GXP Rear Diffuser

1957 Oldsmobile 98 | 371 Rocket V8 | J2 3x2 Tri Power| Jetaway Dual Coupling Hydra-Matic | Sierra Gold | Magnaflow Dual Exhaust | Autronic Eye
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