Short ratio gearbox

Sween · 18-01-2009, 12:44

Ok guys so it is another gearbox question. I have a local contact who has a number of Pulsar gearbox's for sale and he at least one of them is a short ratio gearbox from the rally version. Considering that we are all aware of the known issues with the normal gearbox I wondered if anyone knew of any issues with these boxes?

Gav_Kara · 18-01-2009, 12:53

im running one mate u loose top end speed but compensate with it faster through gears so makes ya car a good 0-60 beast

PobodY · 18-01-2009, 13:36

Quote:

Originally Posted by Gav_Kara

im running one mate u loose top end speed but compensate with it faster through gears so makes ya car a good 0-60 beast

Seconded - you just run out of gears. Not a huge problem on the roads because you're not supposed to be going fast enough to get to that point. You also don't need to build the boost quite as much if you need to get a quick start, but you need to be ready to shift pretty quickly too.

It'll get you to over 100mph, more than that I can't really say.

Sween · 18-01-2009, 13:39

Cheers for your help guys. What about launches and the box disintegrating. Is it a sturdy unit?

PobodY · 18-01-2009, 14:17

I haven't had mine long enough to destroy the box, but I don't know that it's any better.
I know the synchro seems to have gone on mine on 5th gear and I need to double clutch if I don't quite get the revs right. It's also possible that it was rebuilt before I had it.

Gav_Kara · 18-01-2009, 14:24

Quote:

Originally Posted by Sween

Cheers for your help guys. What about launches and the box disintegrating. Is it a sturdy unit?

not shore about launches mate never done it in mine!!! ive had mine almost two years now and seems ok!!! all depends how you treat a box and clutch if your launching it ect it will only last like a normal box and limited time!!!

Fast Guy · 18-01-2009, 15:47

I've had mine long enough and haven't killed it yet, bear in mind I only have about 290bhp, but I'm not shy about lanving it.

pulsarboby · 18-01-2009, 15:57

because of the fact that the gears are a shorter ratio technically you should not break them as easy under launching i would have thought, as you need to shift from 1st almost immediately (second is like 1st on a standard car)
so there should be less strain on takeoff.
downside is that you need to be able to shift gear very quickly to get to 60-80 and that means you run the risk of crunching the gears through being aggressive with gearchange

Fast Guy · 18-01-2009, 16:45

According to the gear ratios I've found, c/r 1st is longer than standard 1st

1st ----- 3.285-------RB: 3.067
2nd ----- 1.850------RB: 2.095
3rd ----- 1.272-------RB: 1.653
4th ----- 0.954-------RB: 1.272
5th ----- 0.740-------RB: 0.911
Reverse - 3.266 -----RB: 3.153

pulsarboby · 18-01-2009, 17:01

i find that hard to believe tbh even though its in black n white

you have to admitt karl that first is pretty useless as you have to change so quick! when i drove the rb that ive got the difference to a standard box is incredible, to the point of its not like driving the same car, on many occasions ive skipped first and just use second to pull away, unless the one i have is totally different.

18-01-2009, 12:44	#1
Sween 1st Gear Join Date: May 2007 Location: Hertfordshire Posts: 72	Short ratio gearbox Ok guys so it is another gearbox question. I have a local contact who has a number of Pulsar gearbox's for sale and he at least one of them is a short ratio gearbox from the rally version. Considering that we are all aware of the known issues with the normal gearbox I wondered if anyone knew of any issues with these boxes?

18-01-2009, 15:47	#7
Fast Guy whippet trainer Join Date: Jun 2002 Location: N Yorks Posts: 1,013,002	I've had mine long enough and haven't killed it yet, bear in mind I only have about 290bhp, but I'm not shy about lanving it. __________________ 3.7s to 60. 12.063 1/4 on standard turbo

18-01-2009, 15:57	#8
pulsarboby Official GTiROC Sponsor Join Date: Jul 2006 Location: southend on sea, essex Posts: 7,273	because of the fact that the gears are a shorter ratio technically you should not break them as easy under launching i would have thought, as you need to shift from 1st almost immediately (second is like 1st on a standard car) so there should be less strain on takeoff. downside is that you need to be able to shift gear very quickly to get to 60-80 and that means you run the risk of crunching the gears through being aggressive with gearchange __________________ www.GTI-R-us.co.uk for all work, engine builds, cars for sale and quality spares

18-01-2009, 16:45	#9
Fast Guy whippet trainer Join Date: Jun 2002 Location: N Yorks Posts: 1,013,002	According to the gear ratios I've found, c/r 1st is longer than standard 1st 1st ----- 3.285-------RB: 3.067 2nd ----- 1.850------RB: 2.095 3rd ----- 1.272-------RB: 1.653 4th ----- 0.954-------RB: 1.272 5th ----- 0.740-------RB: 0.911 Reverse - 3.266 -----RB: 3.153 __________________ 3.7s to 60. 12.063 1/4 on standard turbo

18-01-2009, 17:01	#10
pulsarboby Official GTiROC Sponsor Join Date: Jul 2006 Location: southend on sea, essex Posts: 7,273	i find that hard to believe tbh even though its in black n white you have to admitt karl that first is pretty useless as you have to change so quick! when i drove the rb that ive got the difference to a standard box is incredible, to the point of its not like driving the same car, on many occasions ive skipped first and just use second to pull away, unless the one i have is totally different. __________________ www.GTI-R-us.co.uk for all work, engine builds, cars for sale and quality spares

18-01-2009, 12:53	#2
Gav_Kara 2nd Gear Join Date: Apr 2007 Location: Skegvegas Lincs Posts: 445	im running one mate u loose top end speed but compensate with it faster through gears so makes ya car a good 0-60 beast

18-01-2009, 13:39	#4
Sween 1st Gear Join Date: May 2007 Location: Hertfordshire Posts: 72	Cheers for your help guys. What about launches and the box disintegrating. Is it a sturdy unit?

18-01-2009, 14:17	#5
PobodY 5th Gear Join Date: May 2008 Location: Under the R... again. Posts: 3,256	I haven't had mine long enough to destroy the box, but I don't know that it's any better. I know the synchro seems to have gone on mine on 5th gear and I need to double clutch if I don't quite get the revs right. It's also possible that it was rebuilt before I had it.

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