madteg
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| posted on 15/7/15 at 08:20 PM |
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Best type 9 ratio
I am going to have my spare box rebuilt, what ratio should i go for. Engine is 2.1 zetec turbo with 320BHP max torque at 5800 RPM.
Thanks Kev.
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rusty nuts
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| posted on 15/7/15 at 09:03 PM |
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Go for a high first at the very least . Who are you getting to do the box, might be worth asking them?. How's the motor home?
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madteg
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| posted on 15/7/15 at 09:20 PM |
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Thinking to get BGH to do it, motor home finished and runs great.
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snapper
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| posted on 16/7/15 at 05:00 AM |
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You've got the power to take a high 1st depends on wether you want a cruising 5th or a very high top speed
Get a gear speed calculator downloaded and have a play with the ratios
IMHO 1st needs to be 40+ 2nd 60+
Diff ratio needs to be low with a very close box and 3.9 is the lowest Sierra easily found
Your power should pull a 3.6 with ease but then gears need to be lower
A bit of a conundrum
I eat to survive
I drink to forget
I breath to pi55 my ex wife off (and now my ex partner)
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beaver34
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| posted on 16/7/15 at 07:19 AM |
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ive have a spc semi helical gearset in mine with long first.
i have the same power roughly and with a 8k limit mine does 58mph in first gear, its perfect like that
im running 205 60 r13, forgot diff ratio maybe 3.6
[Edited on 16/7/15 by beaver34]
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livelee
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| posted on 16/7/15 at 03:08 PM |
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Not as much power as you but I have the SPC box in mine, it's lovely. Running a 4.3 mazda lsd. 1st is just shy of 50mph.
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