View Poll Results: What is the optimum top of 2nd?
50mph
7
12.28%
60mph
27
47.37%
70mph
23
40.35%
Stock
0
0%
Voters: 57. You may not vote on this poll
In a perfect world...
#46
But I still badly want a shorter 2nd...
#47
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I had a customer with a GT4 coming next month ask me if I could source a 2.7L 981 gearbox with the shorter 1-2 and upgrade it with Matt's shorter 3-4-5-6 ratios along with a lightweight flywheel and a bunch of other upgrades! The shorter ratio box on this project has has me all giddy and I am starting on working on trying to get the mapping in the ECU adjusted for the new math...
How long has there been an option for selecting multiple quotes??!?!?? I had no idea!
Last edited by BGB Motorsports; 07-29-2015 at 08:10 AM.
#48
Three Wheelin'
#49
Thread Starter
Nordschleife Master
I know. I'm just having some fun. Being able to shift down to 1st doesn't fix that 2nd is too tall and that the 1-2 gap is too big.
Too lazy to multiquote...
I don't think the non-S 3rd gear will be short enough mated to just alternative 4-6. That's leaving too much on the table. Better to do 3-4-5 and leave 6 stock if it's about the last $1000.
Too lazy to multiquote...
I don't think the non-S 3rd gear will be short enough mated to just alternative 4-6. That's leaving too much on the table. Better to do 3-4-5 and leave 6 stock if it's about the last $1000.
#50
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I know. I'm just having some fun. Being able to shift down to 1st doesn't fix that 2nd is too tall and that the 1-2 gap is too big.
Too lazy to multiquote...
I don't think the non-S 3rd gear will be short enough mated to just alternative 4-6. That's leaving too much on the table. Better to do 3-4-5 and leave 6 stock if it's about the last $1000.
Too lazy to multiquote...
I don't think the non-S 3rd gear will be short enough mated to just alternative 4-6. That's leaving too much on the table. Better to do 3-4-5 and leave 6 stock if it's about the last $1000.
#52
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#54
As has been mentioned before, there is no lower ring and pinion currently available for this car. Thus it's not possible to answer your question.
#56
If you want to speculate, simply multiply all speeds in gears by a fixed percentage of your choosing...
#57
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Matt has said elsewhere that there are both technical and business hurdles, and he won't be making a ring and pinion for the GT4. Perhaps someone else will, but I have yet to hear of it. I would prefer a R&P option, but this discussion is on a new 2nd gear, which seems the next best thing.
#58
It actually looks pretty reasonable- Porsche themselves did a shorter R&P between the 997.2 GT3 and GT3 RS. 1st is very tall now, 48 mph, so dropping it to 42 and 2nd to 68 would work pretty well.
It is true that rev drops are important, but to some extent you do get tighter rev drops, because with a R&P you'll be doing the tighter rev drop 4-5 shift at close to the same speed you'd have previously been covering the wider 3-4 gap.
It is true that rev drops are important, but to some extent you do get tighter rev drops, because with a R&P you'll be doing the tighter rev drop 4-5 shift at close to the same speed you'd have previously been covering the wider 3-4 gap.
#59
Thread Starter
Nordschleife Master
Pete's right, this is going off topic. This thread is about optimum speed for 2nd gear.
As you were. I'm not actually one of those territorial people who feels he owns a thread and that it has to go down a single narrow path of discussion. I like when a thread get a life of its own and develops multiple topics because it is just that interesting.
As you were. I'm not actually one of those territorial people who feels he owns a thread and that it has to go down a single narrow path of discussion. I like when a thread get a life of its own and develops multiple topics because it is just that interesting.
#60
I agree wholeheartedly. Now, any theories as to why Canadian GT4s have been held up in port for almost five weeks now?