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big boost cup
Got any pics
182cup & 172 racecar
I think mine is 960 with race fuel and me in it.
it's one of chi's, some pics on here somewhere, will see if i can find them
big boost cup
That's quite light. Going by that I should be sub 900 easy
Thats more like it would be interested in pics of this lol
MarkCup
ClioSport Club Member
I never formally weighed my 172 Cup but I did weigh everything I stripped from it less everything I put back in (e.g. race seat +mount vs standard).
I took out a total of 117kgs so from a starting point of 1,021 it left me at 904kgs.
I took out a total of 117kgs so from a starting point of 1,021 it left me at 904kgs.
A little off the topic but I weighed my 172 non-cup the other day. Basically completely standard, full fuel but without spare wheel/toolkit. Came in at 1099kg, I aim to start stripping it at the weekend and will do an after weight once the cage and stuff is fitted. My friend's cup under the same conditions weighed 1046kg. Might be a useful reference for someone.
So if a fat clio weighs 1000kg USING EASY FIGURES with a standard engine at say 170 bhp at the flywheel, less 30% transmission loses, is approx 120bhp to drive the car along, so in this example is 120 bhp per tonne.
If we get the weight down to say 900 kg which is good going, the power to weight is 133bhp per ton which is effectively an increase of 13 bhp per tonne???
OR should we take flywheel bhp at 170?
This gives at 900kg an effective increase of 19 bhp per tonne. Useful but ?
What will that give if every thing else is equal in reduced lap times.? (of course there will be better braking and cornering from reduced weight and transfer etc to help reduce the lap times)
Where I am trying to go with this is to open the debate on how relevant weight reduction is to a track day car enjoyment ON TRACK.
Agreed Great in the paddock /pits a well prepared light weight car.
I know this is a hobby but it can cost loads of money and huge time to achieve very little on the stop watch (which we arent allowed to use anyway!!)
Yes For pure race we need to get down to the class weight limit to shed every 10th of a second.
Quite a few race classes /championships/ touring cars, use success ballast which can add up to 60kg + to slow down the winners. Even with this added weight the drivers / car performance only seems to be effected by a few tenths per lap, which yes does become significant after 20 mins plus race distance. ( there will be hopefully some body with the lap time to weight calculation ?)
If money is tight (always) I would suggest spending it first on safety, brakes, suspension and driver tuition.
Sorry if bit off subject
best regards mark
If we get the weight down to say 900 kg which is good going, the power to weight is 133bhp per ton which is effectively an increase of 13 bhp per tonne???
OR should we take flywheel bhp at 170?
This gives at 900kg an effective increase of 19 bhp per tonne. Useful but ?
What will that give if every thing else is equal in reduced lap times.? (of course there will be better braking and cornering from reduced weight and transfer etc to help reduce the lap times)
Where I am trying to go with this is to open the debate on how relevant weight reduction is to a track day car enjoyment ON TRACK.
Agreed Great in the paddock /pits a well prepared light weight car.
I know this is a hobby but it can cost loads of money and huge time to achieve very little on the stop watch (which we arent allowed to use anyway!!)
Yes For pure race we need to get down to the class weight limit to shed every 10th of a second.
Quite a few race classes /championships/ touring cars, use success ballast which can add up to 60kg + to slow down the winners. Even with this added weight the drivers / car performance only seems to be effected by a few tenths per lap, which yes does become significant after 20 mins plus race distance. ( there will be hopefully some body with the lap time to weight calculation ?)
If money is tight (always) I would suggest spending it first on safety, brakes, suspension and driver tuition.
Sorry if bit off subject
best regards mark
imprezaworks
ClioSport Club Member
Mk5 Golf GTI :)
Very good advice mark
NorthloopCup
ClioSport Moderator
I always say, you can buy the car but you can't buy the driver.
182cup & 172 racecar
It's what I keep saying to. Nobody listens.
Less weight improves almost everything and it's free to start with. Once you get into diminishing returns and start having to spend its no longer really worthwhile.
For me, my car has no interior, relocated smaller battery and buckets/harnesses/cage, but still has glass windows, full dash and heater original panels etc to maximise useability and keep costs down.
For me, my car has no interior, relocated smaller battery and buckets/harnesses/cage, but still has glass windows, full dash and heater original panels etc to maximise useability and keep costs down.
banther
ClioSport Club Member
Tony don't you come in here with your 'good advice' and 'years of experience' and expect people to listen!
Wait, all this weight reduction is for lap times? I thought we were all just trying to get greater fuel economy on track!
Eventually all that expense and time spent saving weight will pay for itself in fuel costs. Admittedly this takes quite a while... But that just means the best way to save money is actually to spend more time on track.
In fact, this logic works for all weight affected consumables, discs/pads + tyres?
Better get more track days booked...
Eventually all that expense and time spent saving weight will pay for itself in fuel costs. Admittedly this takes quite a while... But that just means the best way to save money is actually to spend more time on track.
In fact, this logic works for all weight affected consumables, discs/pads + tyres?
Better get more track days booked...
182cup & 172 racecar
I've said before, I can get my road car with everything in, sets, c d's, shopping bags etc, around Brands in 59-60 sec.
The race car does 55-56, but that ain't bad, plus I didn't cook the brakes and was on pet's, it was fun enough.
The race car does 55-56, but that ain't bad, plus I didn't cook the brakes and was on pet's, it was fun enough.
182cup & 172 racecar
Pets??
Pe2's
Pe2's
I've taken out the spare and tools and the backseat rests on a sport (more to come) already it accelerates better in third gear and stops quicker to. This isn't placebo as my brakes are utter shite (got a full set on order from g172)
If shedding weight just means the suspension/brakes/tyres have less work to do then its worth it!
100kg is like 4 bags of cement. I could feel that difference in a transit when I used to be a driver so sure as hell would you feel it on a little Clio!
If shedding weight just means the suspension/brakes/tyres have less work to do then its worth it!
100kg is like 4 bags of cement. I could feel that difference in a transit when I used to be a driver so sure as hell would you feel it on a little Clio!
imprezaworks
ClioSport Club Member
Mk5 Golf GTI :)
Every little helps. If nothing else I like the rawness
I've just fixed the interior fans in the car and im moving on to the rear now. Still not sure whether to go exposed metal or keep the carpets/plastics.
Wheres the sound deadening on these cars from what I can see peeling the carpet away theres some on the passengers floor and a bit above thr exhaust. Anymore in the rear?
Wheres the sound deadening on these cars from what I can see peeling the carpet away theres some on the passengers floor and a bit above thr exhaust. Anymore in the rear?
p@blo
ClioSport Club Member
Clio/A3
Boot floor pan/spare wheel well, inner rear quarters, roof, rear passenger floor pan, front floor pan, engine bay scuttle & front turret/s from memory.
I hate how to remove the rear doorcards you have to unbolt the seatbelts. What a stupid design is that? Im still stood here at the back of my car debating whether to go the whole hog. I know if I want to sell the car in future its easy enough to put it all back in but I don't ever want to have to lol
p@blo
ClioSport Club Member
Clio/A3
For a road car where it's useful to be able to use the boot space, carry passengers etc I don't understand the point of deliberately making an already small car even more impractical by stripping out all of the interior. Personally I wouldn't bother, but whatever floats your boat I guess Joe.
Cub.
ClioSport Moderator
I left all the interior in mine.
"Clubsport spec".
Put it like this, if weight needs to be lost, I'd be starting on the driver. Not the car. 😂
"Clubsport spec".
Put it like this, if weight needs to be lost, I'd be starting on the driver. Not the car. 😂
872kg dry
