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8.1 tranfer gears
Posted: Tue Jan 05, 2010 7:37 pm
by ajsr
anyone tried them?
yes im sure they will break shit , but anyone?
Posted: Tue Jan 05, 2010 8:07 pm
by weaves
have you got a link to these?
i wonder how much of the transfer case wall is left after grinding?
weaves
Posted: Tue Jan 05, 2010 8:25 pm
by ajsr
sleepy
Posted: Wed Jan 06, 2010 8:49 am
by big_little112
i have 6.5:1 in mine with 33" an hilux diffs its awsome any slower an i think i will fall asleep
Posted: Thu Jan 07, 2010 12:55 pm
by sierrajim
Given the terrain in VIC I don't see why you'd need to go so low. 1st low would be crazy low and would mean that you'd be using 3rd and 4th in low range to get wheel speed.
Posted: Thu Jan 07, 2010 2:16 pm
by alien
nothing wrong with 3rd and 4th for wheelspeed... 4th is a nice strong gear anyway =)
im running 5.14 tcase with 31s and its pretty much bang on stock on road and offroad i use 2nd low a lot, as well as 3rd and 4th, even 5th skipping between sections of track (although more and more i find myself shifting back to 2wd for this).
The high range reduction on the 8.1's would bring a 33" tyre close to stock... seems a bit low for 33's in low range, and probably too tall in high range for 35s etc... weird.
Posted: Thu Jan 07, 2010 4:48 pm
by Gwagensteve
I reckon your car is geared pretty well AJSR. I don't think it would work as well with 8:1's in it.
Steve.
Posted: Thu Jan 07, 2010 9:39 pm
by jimbo jones
I looked into em a while ago but stuck with the 6.5's and Im running 37's and I feel its geared right it crawls really good with not much throttle at all
http://www.outerlimits4x4.com/ftopic160 ... highlight=
Posted: Fri Jan 08, 2010 8:01 am
by Gwagensteve
I've crunched some numbers and with 34" tyres and WT diff gears and 8:1 Transfer:
Crawl: 106:1
Highway: 3282 rpm @ 100km/hr
I don't think a car in victoria needs 106:1 crawl. I'm at 127:1 and it's only usable because my low end torque is soft and my motor revs high. I wouldn't build a car with more motor geared that low - in fact, I'd be building an auto at 60-80:1 crawl.
I understand you're looking to go EFI 1.6- I'd say the 87:1 or so you have with 6.5's is a better package. You'll be getting frustrated with the lack of wheelspeed with 8:1's IMHO.
Steve.
Posted: Fri Jan 08, 2010 10:12 am
by ajsr
thanks for the input steve
thats a lot lower than I thought and ive got nt 3.9's