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View Full Version : ZR160/BRM gearbox


Captain Slow
22-01-13, 10:24 PM
Wanted, as above for the Streetwise VVC.

ZRed
23-01-13, 01:39 AM
I'll have a 160 boxthere

ZS
23-01-13, 08:04 AM
Remember the ZR160 box does not have a Torsen Diff in it, but the BRM Box does...

Captain Slow
30-01-13, 09:28 PM
I'm not massively bothered about the diff, more the shorter ratios.

How much for the 160 box?

ZRed
30-01-13, 11:57 PM
£75

Cally180
31-01-13, 02:20 AM
Does the 160zr box for the V6 engine? Is there much of a ratio difference?

petet16
31-01-13, 06:35 AM
Does the 160zr box for the V6 engine? Is there much of a ratio difference?

No, it won't fit a v6, different bolt pattern on the bell housing

Aden
11-02-13, 12:46 PM
If the bellhousing is swapped can the ZR160/BRM boxes be put on a 180? I assume they can but wonder how they'd hold up to the torque?

And thinking this would definitely improve acceleration, but much? And at what cost of top speed...

ZS
11-02-13, 01:50 PM
ZS180 Ratios:

Final Drive 3.94:1
1st 3.17:1
2nd 1.84:1
3rd 1.31:1
4th 1.03:1
5th 0.77:1


BRM Ratios:

Final Drive 3.938:1
1st 3.938:1
2nd 2.23:1
3rd 1.750:1
4th 1.033:1
5th 0.848:1


Not sure what that equates to in usability though? :)

petet16
11-02-13, 02:19 PM
You cant swap the bell housing on it's own, if you wanted BRM ratios the easiest way would be to start with a turbo T series pg1 and build it using BRM internals, I think it might work quite well in a 180.

ZRed
11-02-13, 02:22 PM
Brm ratios are ***** with the 3.9 fd. ***** on the road, and ***** on track (Knockhill, so short track at least).

Change the final drive to a 4.2 from a vvc box and its a lot better.

Aden
11-02-13, 02:24 PM
Brm ratios are ***** with the 3.9 fd. ***** on the road, and ***** on track (Knockhill, so short track at least).

Change the final drive to a 4.2 from a vvc box and its a lot better.

Seems like a lot of hassle, better getting a 160 box and dropping the BRM Diff in?

petet16
11-02-13, 02:36 PM
A 160 pg1 wont fit a v6 though.

Aden
12-02-13, 10:45 AM
A 160 pg1 wont fit a v6 though.

Oh yeah of course, the bellhousing again. *facepalm*