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You would probably know more about this than I do since you are running this tranny on your car. I was merely asking for an explanation for the big power loss when switching to this transmission, so I hope you don't take this personally. The information I provided was based on my conversation with Eric at Boulder Nissan. The guy is a freind of mine and I order most of my parts through him (he gives me really good deals and I would recommend him to any Colorado Z owners). Although he is the parts manager, he did a lot of work on that car. The owner let him drive the car home numerous times when it had the 6 speed. They used to also drive it to the local track, and pretty much everywhere else the car went. When it was converted to an auto, they hardly ever drove it on the streets again, and it is now trailered to the track. One day we were having a conversation about the car and I asked him about the advantages/disadvantages of the swap. The reason this was brought up is that the car dynoed at about 50whp less with the new tranny, and they were installing a 50 shot of nitrous to make up for the difference. Overall, they were happy with the conversion because the car was almost a whole second quicker in the quarter mile (which is why they did the swap in the first place). But he said that they no longer drive the car on the street because it revs really high at traffic lights, and it also revs high on the highway. I am aware that the trap speed is what determines how fast the car really is, but I'm not sure how the swap affected that. I can't remember their trap speed before the swap and I didn't ask him about that. The decrease in ET was due to much better acceleration though. Now sucking up a lot of power is not a good thing under normal circumstances. But when it comes to drag racing, I can't deny that this transmission has an obvious advantage over any 5 or 6 speed manual transmission, regardless of whether it increases or decreases the actual whp. Like you said, streetability is a matter of opinion. Some people will argue that 20g turbos are streetable, while others would totally oppose that view. It all depends on what you build you car for (e.g. drag racing, circuit racing, etc). BTW, the .8 second decrease in ET was *before* the nitrous was installed. Everything else on the car was the same as before, with the exception of the transmission. As far as I can remember, they have a 4700 RPM stall-speed torque converter. Once again, don't take this personally. The only reason I said that it destroys streetability is because this is what it sounded like. Nice website btw.
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