Max Torque

12th December 2008, 21:53

I've noticed that when changing from gear 2 to gear 3 AT 30MPH there's more acceleration then keeping my foot down untill i get to say 45mph in gear 2 then chaging into gear 3. Any ideas why? Is this the torqre is at? I'd like to know where the rest of them are

Sorry if you don't understand but hope someone will.

12th December 2008, 21:56

peak torque is at the same rpm in each gear.

12th December 2008, 22:03

Would help me if i didn't have a fat clock in the space where the rev counter is

12th December 2008, 22:47

Quote:

Originally Posted by dannyboy2005

Would help me if i didn't have a fat clock in the space where the rev counter is

not sure how the rpm/mph per gear is on 1. but I remember my 1.5D topped out roughly at these figures in each gear...
NOTE: 'topping out' was at peak power not peak rpm
1st - 18mph
2nd - 36mph
3rd - 60mph
4th - 80mph
5th - never bothered finding out/looking at the rpm dial

based on the fact they might be loosely similar the 1.1 and 1.5D (1.1 has a shorter ratio'd box but higher rpm, hence my assumption above).

Based on the above it's unlikely the 1.1 would hit 45mph in second, or if it does it's well past peak power and well into the downward slope of the torque curve...
How does the instant acceleration feel at this 30mph figure in both gears dude? 2nd should by guestimate have more umph than 3rd..

does the car drive ok?

12th December 2008, 23:04

In 2nd gear at 30mph the engine is revving at around 3K rpm. Peak torque on the 1.1 occurs at around 3-3500 rpm. By the time you hit 45mph in second ( approaching 5K revs) the torque curve is begginning to drop thus the acceleration rate is also dropping.

I have hit 55mph in second on my 1.1 but this is at 6000rpm (redline) way past the peak torque figure and by then the engine does run out of puff on the 8v but the speedo could be out a notch. From experience my 1.1 feels at it's best at around 4K which is where most 8v engines peak in torque. Is your car standard or modded at all ?

Hope this helps anyway mate

12th December 2008, 23:04

Quote:

Originally Posted by adsayer

not sure how the rpm/mph per gear is on 1. but I remember my 1.5D topped out roughly at these figures in each gear...
NOTE: 'topping out' was at peak power not peak rpm
1st - 18mph
2nd - 36mph
3rd - 60mph
4th - 80mph
5th - never bothered finding out/looking at the rpm dial

based on the fact they might be loosely similar the 1.1 and 1.5D (1.1 has a shorter ratio'd box but higher rpm, hence my assumption above).

Based on the above it's unlikely the 1.1 would hit 45mph in second, or if it does it's well past peak power and well into the downward slope of the torque curve...
How does the instant acceleration feel at this 30mph figure in both gears dude? 2nd should by guestimate have more umph than 3rd..

does the car drive ok?

Wicked cheers bud.. Thanks given.

Like you say pedal to metal in gear 2 anything above say 40mph is rubbish acceleation.

Gear 2 is great for a nippy over taking at 30mph its good untill you hit around 38/40mph.. Gear 3 is great if you use it just after 30mph coz you sill have aload of power and its a long rev untill we hit 60. IMO gear 3 is my fav

Going down slip roads to join a motor way or something like that anthing like that i would guess would be economacal to use all your gears and hit #5 when you join because reving it to the max in gear 2 to get 'Max Power' really dosn't help.

Tbh.. Not having a rev counter dose make you appriciate your car more, not knowing if your in the red or not and you sort of guess where your best at changing gears too.

Cheers Bud!

12th December 2008, 23:06

Quote:

Originally Posted by saxoboii1989

In 2nd gear at 30mph the engine is revving at around 3K rpm. Peak torque on the 1.1 occurs at around 3-3500 rpm. By the time you hit 45mph in second ( approaching 5K revs) the torque curve is begginning to drop.

I have hit 55mph in second on my 1.1 but this is at 6000rpm (redline) way past the peak torque figure on the 8v but the speedo could be out a notch. From experience my 1.1 feels at it's best at around 4K which is where most 8v engines peak in torque. Hope this helps mate

+1.. Couldn't agree more. Any more then about 40mph in gear 2 its rubish. 55MPh in gear 2? Probs no different accelerating in gear 4?

12th December 2008, 23:08

get hold of a cheap pod or make yourself somthing and fit a tach mate

find your revs could help improving your driving style getting the most out of gear changes ect

12th December 2008, 23:12

Quote:

Originally Posted by VTEC-Saxo

get hold of a cheap pod or make yourself somthing and fit a tach mate

find your revs could help improving your driving style getting the most out of gear changes ect

Its the wiring in that i cba with.. Removing the trim to fit it etc.. The trim never goes back the same once its been removed

http://www.saxperience.com/forum/sho...d.php?t=177153 <<-- Thats the guide BTW before any n00bs ask.

12th December 2008, 23:13

Quote:

Originally Posted by dannyboy2005

+1.. Couldn't agree more. Any more then about 40mph in gear 2 its rubish. 55MPh in gear 2? Probs no different accelerating in gear 4?

55mph in 2nd is at the absolute limit on the 1.1 but it is probably more like 52mph as the saxo speedometers are not the most accurate. 55mph in 3rd is where my 1.1 feels in it's prime (around or just over 4K revs. In 4th gear at 55mph is at 3200rpm just where the torque begins to peak. To get the best acceleration in each gear you want to be shifting halfway between peak torque and Peak BHP which is higher up the rev band (5500 rpm on the 1.1). It is difficult to know when to shift gear unless you have a rev counter, try to get one fitted as it is well worth having

12th December 2008, 23:13

Quote:

Originally Posted by dannyboy2005

Its the wiring in that i cba with.. Removing the trim to fit it etc.. The trim never goes back the same once its been removed

http://www.saxperience.com/forum/sho...d.php?t=177153 <<-- Thats the guide BTW before any n00bs ask.

Get a loud anoying exhaust to learn the rev range

by ear
Not tach, good savings by citroen there

12th December 2008, 23:17

Don't know if its the same for 1.1's but the VTR's peak torque is at 3.5k, peak power at 5.5k

12th December 2008, 23:22

Quote:

Originally Posted by VTR_Craig

Don't know if its the same for 1.1's but the VTR's peak torque is at 3.5k, peak power at 5.5k

They both have similar power delivery as they are both 8v engines so they drive the same in that respect but the VTR is obviously faster as it has more BHP/lb ft to make use of

12th December 2008, 23:52

Quote:

Originally Posted by VTR_Craig

Don't know if its the same for 1.1's but the VTR's peak torque is at 3.5k, peak power at 5.5k

On Order.. Super Sprint full system (Expect Manifold... TOOO much money)

12th December 2008, 23:55

I have noticed that gear 5 at about 70/80 mph has extreamly good acceleration fr a little car.

Will keep up with all motorway traffic (Wheer you go throw spots of slow 50mph traffic then back to 90mph) cars fine sticking with that!

Considering a rev counter

Going to get:

Supersprint Magnum full de-cat system (again.. a tad more power)
Air filter (Unsure what to get as they are expensive)
Get my Throttle Body modified.

Other then that theres not much else you can do to a 1.1 is there?

13th December 2008, 01:00

no point getting your body mod'ed mate will make fuck all difference imo