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#1
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Manual Transmission Gear Ratio
The STI 6 speed has a top gear ratio of .76, while the SVX auto top ratio is .64. Is there a manual which has a top ratio closer to the .64 or any after market gear kits which would have it? When doing highway miles I want to keep the RPM down when cruising.
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#2
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Keep also in mind that any manual tranny will have a lower final gear ratio too...so even if you find a tranny with a .64 high gear, it will still be turning more RPMs than the Auto in the SVX.
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Huck Subaru Ambassador 92 SVX LS-Tour Magnaflow Exhaust, 5-Spd-AWD 88 XT6 AWD 5-Speed "Bride of FrankenWedge" 15 Impreza Premium Sedan 15 Crosstrek XV 5-Speed My 5-Speed "How-To" Write-up 1976 Pontiac Firebird Formula Current Count of Subaru's Owned.... "70" |
#3
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http://www.subaru-svx.net/forum/show...m+forester+6mt
The JDM Forester STi trans has a 0.707 top gear. Short of getting a custom gear cut, that's about as good as you're going to get.
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Chris 92 Ebony Mica LS-L "A Rolling Restoration": 223,250 KM - Sleeping 2007 STi 6MT, Stance GR+ coilovers, PWR Rad, JDM hood badge, svxfiles 6000K HIDs, JDM Clear Corners, $15/15 min mod, $20/20 min mod, Energy Swaybar Bushings, Hella Supertones horns, Gold STi BBS rims, Group A lightweight crank pulley, A/C system removed, Custom header-back exhaust, Hybrid carbon/metal rear sway bar, restored headlights with CCFL halos 2008 Subaru Legacy Spec B - Diamond Grey Metallic - Sold 2020 Ram 1500 Longhorn - Red Pearl |
#4
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Perhaps you shouldn't get a 6mt??? Me thinks a 4.44 is more suitable from what you have indicated thus far.
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Subaru SVX 94' Laguna Blue - 8.5 C/R Built Motor, 6spd |
#5
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the best 6mt for a cruising ratio is the JDM forester... since they are not easily found I believe the USDM 6mt has a .72 as listed which is very nice... I get 21mpg in my silver with the .86(i think) JDM sti trans I have and thats with a little dipping on the throttle here and then too... So a stock SVX should get closer to 25-28mpg. With the USDM trans it should be right around 30mpg w/ a good running car.
Tom |
#6
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#7
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Ah okay, yeah manual tranny is just so fun... I just love driving my car... if you do go for 6mt I would recommend to be very careful around E-bay... when I was doing my initial searches I found that about half of the offers on e-bay were scams. Also do remember you are looking at roughly $5,500+ for the entire swap.
Good luck
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Subaru SVX 94' Laguna Blue - 8.5 C/R Built Motor, 6spd |
#8
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I build an auto for $2700 that should last you forever and make your car faster thanks to faster shifts and less drivetrain loss.
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#9
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#10
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I guess there is really only a couple hundred rpm difference between .76 and .64.
How is the JDM 6 mt different from stock? I see one listed on ebay. |
#11
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I was just letting you know that there is an auto that won't break on you option out there. Your forth one comment made it sound like replacing them had left a bad taste in your mouth and was the reason you'd get a manual despite wanting low rpm highway cruising.
Since you actually want a manual because you want a manual........ Get an 07 6 speed. They have the same dif gear ratios as us. |
#12
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or just see if some one like ppg has a 5th or 6th gear that would work for you.
Thats what I want to do in my rs is get a 5th gear that will work with my 4.11 rear end to drop my cruise rpm at 70 down closer to 3krpm. |
#13
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I am right around 3k rpm @ 70-73 mph in 6th.
At 3.2k I will be around 80+ mph and so on.
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Subaru SVX 94' Laguna Blue - 8.5 C/R Built Motor, 6spd |
#14
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Try looking at the 07 STi or 07? 08? Legacy Spec-B gearboxes as they got new ratio patterns compared to the older ones.
Also might try to find the 3.0 spec-B 6spd stats as sold in europe as this might also have new and interesting ratios. |
#15
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umm, do the math with the 3.545 dif gears and I think you'll find the 07 sti is by far the best 6 spd for an svx
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