So this is likely the 3000th post of the same subject on the internet, but what the hell. Why not?
So my engine swap occurred in in 2011. 4.3 TBI V6 to Gm performance 350. For sake of ease kept the throttle body injection. Had other challenges to work out so it seemed like a good short term solution. Thought the car had 2.73 gears all the while. While slow they at least approached not horrible territory, or so I thought. That was until I ran my RPO code and it said GU1. Which is 2.41(no posi). Two forty F***in 1. They had to go. The motor ran good and I had no complaints, but it was time. After some debate it was decided to rebuild the 10 bolt. 3.73 gears, posi and such. That threw the transmission into a tizzy. As documented here.
https://gbodyforum.com/threads/had-...exposed-transmission-problems-resolved.63268/
Once that was worked out through the use of BTO's throttle linkage kit and a GN Governor sourced from TransDepot, the car was running really good. I read time and time again the car would be useless on the highway but that wasn't the case. It was loving the higher RPM ranges. Car was cruising comfortably at 75 mph with pedal to spare.
So I finally got the car to the track tonight. Lancaster Speedway, NY. Only 1/8th mile only. I only made one pass, 9.41. Beat a 2000 Trans Am LS1 by a narrow margin. Nice condition car with exhaust and other standard mods. Had him the whole way. I could hear the guys car well, he drove it fine and hard, but the Monte pulled. After the race dude wouldn't even look in my direction. He just got beat by a brick shaped car with the 4.3 emblem on the back.
Before the rear end setup the car ran exactly 1 second slower. Worthwhile upgrade to say the least.
And for all the people that said Throttle body can't do that. It's not a performance setup, that ain't half bad. For all the headaches and costs associated with changing fuel system's, I'm not sure the effort will net me that much.
Not saying my car is hot sh*t or something. But for what people said this car can't be, it far exceeds those expectations. Just happy about that.
Thanks for reading.
So my engine swap occurred in in 2011. 4.3 TBI V6 to Gm performance 350. For sake of ease kept the throttle body injection. Had other challenges to work out so it seemed like a good short term solution. Thought the car had 2.73 gears all the while. While slow they at least approached not horrible territory, or so I thought. That was until I ran my RPO code and it said GU1. Which is 2.41(no posi). Two forty F***in 1. They had to go. The motor ran good and I had no complaints, but it was time. After some debate it was decided to rebuild the 10 bolt. 3.73 gears, posi and such. That threw the transmission into a tizzy. As documented here.
https://gbodyforum.com/threads/had-...exposed-transmission-problems-resolved.63268/
Once that was worked out through the use of BTO's throttle linkage kit and a GN Governor sourced from TransDepot, the car was running really good. I read time and time again the car would be useless on the highway but that wasn't the case. It was loving the higher RPM ranges. Car was cruising comfortably at 75 mph with pedal to spare.
So I finally got the car to the track tonight. Lancaster Speedway, NY. Only 1/8th mile only. I only made one pass, 9.41. Beat a 2000 Trans Am LS1 by a narrow margin. Nice condition car with exhaust and other standard mods. Had him the whole way. I could hear the guys car well, he drove it fine and hard, but the Monte pulled. After the race dude wouldn't even look in my direction. He just got beat by a brick shaped car with the 4.3 emblem on the back.
Before the rear end setup the car ran exactly 1 second slower. Worthwhile upgrade to say the least.
And for all the people that said Throttle body can't do that. It's not a performance setup, that ain't half bad. For all the headaches and costs associated with changing fuel system's, I'm not sure the effort will net me that much.
Not saying my car is hot sh*t or something. But for what people said this car can't be, it far exceeds those expectations. Just happy about that.
Thanks for reading.
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