dalewakelin
New member
still have a minor crush on the abarth 500.
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Car photos/discussion thread
- Thread starter barnsley
- Start date
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barnsley
born in a.....
Big fan of those Abarths. So much made it the 1000th post (without realising).
Anyway, I've asked this before with a different images.
Right or left guys?
shambles1980
New member
answer the above post id go left..
and
this is my fave car of all time
jaguar xj 220
and
this is my fave car of all time
jaguar xj 220
SavageCupcake
New member
Can I have both? If i really had to choose then the r32.
dalewakelin
New member
RamboOC
Suspended By Request of Police
Big fan of those Abarths. So much made it the 1000th post (without realising).
Anyway, I've asked this before with a different images.
Right or left guys?
Both are the best cars I can think of
But if were to choose right now i would go for the r33 (r32?)
barnsley
born in a.....
how do you recodgnise an r32 from r33 ?
The front usually. R32 is more square
R33:
R32:
SPS
Moderator
Any particular reason? Do you feel that you need to?
MrKambo
New member
VXR is a turbo charged engine, the engine this car has is prone to going bang due to detonation, using 99 reduces that risk, not to mention the car runs like a sack of shit on 95.
Most performance cars you'll find use vpower (99) as its better for the engine, its hard to explain without showing you graphs and stuff, the car just isn't as responsive on 95 as it is on 99. if you drive a normaly family saloon, i wouldnt bother with 99, unless its a performance version such as a M5 or RS6.
the 102 was a random shot round the nurburgring.
SPS
Moderator
Just that from what I've read, some cars are designed to run on high octane fuel and so perform sluggish without it. I tried it in my BMW 318i to see if it made a difference but I'd say it was fractional - looks like I need to get me an M3.
Indeed you guys are on the right track with your thoughts on performance fuels. The octane rating doesn't really signify that the fuel contains more energy instead it means it can withstand higher pressures without pre-igniting. So it can't just give any engine moar power!!! because the engine needs to be diligent enough to react to the higher rated fuel and adjust it's ignition timing accordingly thus extracting moar power!! yey!
Previously fuels used lead to prevent pre-ignition and they were actually able to achieve higher compression ratios than they are currently but then someone discovered lead makes kids retarded and gives you cancer or something bad like that and hence now you can pretty much only get unleaded fuels.
Because of all of that a normal car won't benefit from a higher octane fuel but a performance car might. A race car would NEED that fuel or with the higher compression ratio's used it would self destruct, or would it?
Well actually yes it would, when petrol pre-ignites the hydrogen is breaking down rather than the carbon and it actually produces far more power. If you could actually use petrol in that way you could make a far leaner and more efficient engine but it's just ever so slightly difficult to control. Really we should have the tech and when it comes it could be game changing. Incidentally it would make octane ratings irrelevant.
JR
Anyone fancy doing your dream 5-car garage, say capped at £2m so you can't have 4 Veyrons and a Wraith, include mods?
Previously fuels used lead to prevent pre-ignition and they were actually able to achieve higher compression ratios than they are currently but then someone discovered lead makes kids retarded and gives you cancer or something bad like that and hence now you can pretty much only get unleaded fuels.
Because of all of that a normal car won't benefit from a higher octane fuel but a performance car might. A race car would NEED that fuel or with the higher compression ratio's used it would self destruct, or would it?
Well actually yes it would, when petrol pre-ignites the hydrogen is breaking down rather than the carbon and it actually produces far more power. If you could actually use petrol in that way you could make a far leaner and more efficient engine but it's just ever so slightly difficult to control. Really we should have the tech and when it comes it could be game changing. Incidentally it would make octane ratings irrelevant.
JR
Anyone fancy doing your dream 5-car garage, say capped at £2m so you can't have 4 Veyrons and a Wraith, include mods?
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SPS
Moderator
Indeed you guys are on the right track with your thoughts on performance fuels. The octane rating doesn't really signify that the fuel contains more energy instead it means it can withstand higher pressures without pre-igniting. So it can't just give any engine moar power!!! because the engine needs to be diligent enough to react to the higher rated fuel and adjust it's ignition timing accordingly thus extracting moar power!! yey!
Previously fuels used lead to prevent pre-ignition and they were actually able to achieve higher compression ratios than they are currently but then someone discovered lead makes kids retarded and gives you cancer or something bad like that and hence now you can pretty much only get unleaded fuels.
Because of all of that a normal car won't benefit from a higher octane fuel but a performance car might. A race car would NEED that fuel or with the higher compression ratio's used it would self destruct, or would it?
Well actually yes it would, when petrol pre-ignites the hydrogen is breaking down rather than the carbon and it actually produces far more power. If you could actually use petrol in that way you could make a far leaner and more efficient engine but it's just ever so slightly difficult to control. Really we should have the tech and when it comes it could be game changing. Incidentally it would make octane ratings irrelevant.
JR
Anyone fancy doing your dream 5-car garage, say capped at £2m so you can't have 4 Veyrons and a Wraith, include mods?
This concurs from what I've briefly read. Are there any common road cars that would suffer very badly from 'low octane' fuel?
mArTyN
New member
http://www.torquecars.com/articles/fuel-octane-ratings.php
An interesting read for you.
At the end of the day it all comes down to the octane rating that your engine was designed to work with.
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Nope not common. Perhaps some performance stuff from pre-90's when 4-star was still mainstream wouldn't take too kindly to low octane depending how they were setup but that's pretty much going to be an impossible situation as they wouldn't like the 15% ethanol either and would be so obsolete or specialist nobody would cock that up.
JR
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