Opinions on 6 speed STI gear ratios
Folks - wondering how you get on with these ratios - seem to be on the JDM STI 01 to 05.
It's actually for a different car (project) but the 3rd, 4th, 5th are a perfect match and those are the ones I am interested in. Are these 3 gears 'too' close to enjoy? Or does the change in rpm work nicely? I need to keep a turbo on the boil and have a 7k rpm limit (peak power about 6500). (My final drive will be the same too) 1st: 3.636 2nd: 2.375 3rd: 1.761 ( 77mph @7k?) 4th: 1.346 ( 100mph @ 7k?) 5th: 1.062 ( 133mph @ 7k?) 6th: 0.842 final 3.9 Any opinions welcome! |
What turbo are you running? That will play a part in how high up the RPM you need to keep her.
The shorter the gear ratios the better if running a big big turbo, but then you have a nightmare on motorways. An inbetween is always good. I can't see you having any issues with those gear ratios. |
It's a GT3071R 0.86 - I'm 14psi at 3100 rpm. Need +3500rpm for proper sparkle/go so 'big' but not huge by any means.
I've got a massively long top gear bolted onto this (for cruising only) so the 3/4/5 are the 'go gears' for fun on the road. You've pretty much answered my concern anyway - cheers |
I run a 3076 0.63 on a 2 litre with a hawkeye box, (with longer ratios ), once rolling it's just a case of hanging on for dear life...
dunx |
cheers - that will spool a bit later than mine I suspect but not a huge amount but any idea what the ratios are? (and is that a 6 speed also?)
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Yes six speed but even longer !
3K rpm @ 80 mph in top means a theoretical 200mph top speed ! I haven't found a reliable source of info but I keep looking... dunx |
Bit off thread, but how are you getting that type of spool? Is it on a 2.5?
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all i can say is i love my jap spec box i have never looked back much more fun to drive then the old 5 speed box , just keep grabing for the next gear lol
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Originally Posted by Grant74
(Post 10023131)
Bit off thread, but how are you getting that type of spool? Is it on a 2.5?
Issue with current box are the epic ratios and chasm between 2nd and 3rd. 2nd gear gets me to 84, 3rd to 130mph. The more I dig into the scooby world the more I realise how massively shorter the gears you guys run are. If the jap spec is the 4.44 I see, then it's going to be brutal (and fun). Feel free to move this to other marques but it's such a specific question it seemed better here... |
sorry i have a six speed jap box which is 3.9 and is great the old five speed box would not take any where near the power your runing
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