RE: Twin-turbo Ford GT hits 257.7mph
Discussion
hairykrishna said:
They still seem 'slow' thinking about it. Red Victor, that mental corvette in the US and doubtless many of their competitors do >200mph in a 1/4 and are road legal. I realise top speed is a different optimisation but with a taller final ratio there must be all kinds of things potentially faster than this over a mile?
Off you go then , best of luck liner33 said:
hairykrishna said:
Sort of brings up a 'what's the point?' question really. Why doesn't someone just take a proper dragster along and blow them all into the weeds?
This is the street legal class, these are street legal "dragsters" Firstly they are mostly manual cars. secondaly the first 60ft has little to do with the top speed. look how slow they pull off. i could show vids of lesser powered cars that would kill these things in the 1/4.
As for whats the point? well the same could be said for any racing format. THe obvious answer is to be the best (ie the fastest). same could be said for the bonivile type events but there is still a massive turn out for them. i guess if you have to ask then you just dont get it! lol
As said before this sport is still pretty new and no where near as popular as drag racing. although some of the big tuning compaines are having a go now. once this takes off then you will see higher spec cars running.
Chris.
PS. hairykrishn do you know that the top fuel dragsters actually push well over 300mph in the 1/4 mile? in fact they run over 250mph in the 1/8! By half track the engines are deiseling and the sparks are doing f
k all! by full track (4 and a bit seconds) the rings are burnt up and the engine is basically fked! as they cross the line and pull the chute they cut the fuel off to stop the engine. once back in the pits they strip the engine and install new pistons, rings, bearings, etc and bolt the thing back together. Edited by chuntington101 on Monday 2nd April 21:26
chuntington101 said:
You really couldn't be much further from the truth! these are NOT DRAG RACERS they are mile racers. Yes they still run stupidly powerfull engines but thats about it!
Firstly they are mostly manual cars. secondaly the first 60ft has little to do with the top speed. look how slow they pull off. i could show vids of lesser powered cars that would kill these things in the 1/4.
As for whats the point? well the same could be said for any racing format. THe obvious answer is to be the best (ie the fastest). same could be said for the bonivile type events but there is still a massive turn out for them. i guess if you have to ask then you just dont get it! lol
As said before this sport is still pretty new and no where near as popular as drag racing. although some of the big tuning compaines are having a go now. once this takes off then you will see higher spec cars running.
Chris.
PS. hairykrishn do you know that the top fuel dragsters actually push well over 300mph in the 1/4 mile? in fact they run over 250mph in the 1/8! By half track the engines are deiseling and the sparks are doing fk all! by full track (4 and a bit seconds) the rings are burnt up and the engine is basically fked! as they cross the line and pull the chute they cut the fuel off to stop the engine. once back in the pits they strip the engine and install new pistons, rings, bearings, etc and bolt the thing back together.
I know the top fuellers do >300. I was talking about the street legal cars (pro mod? I know little of drag racing I'm afraid). I wasn't bashing the idea of the 'fastest in a mile' competition - whatever people enjoy really. I was just slightly surprised that the fastest cars weren't even faster. I suppose if it's new-ish, like you say, the guys with the massive budgets and purpose built cars will be along soon enough.Firstly they are mostly manual cars. secondaly the first 60ft has little to do with the top speed. look how slow they pull off. i could show vids of lesser powered cars that would kill these things in the 1/4.
As for whats the point? well the same could be said for any racing format. THe obvious answer is to be the best (ie the fastest). same could be said for the bonivile type events but there is still a massive turn out for them. i guess if you have to ask then you just dont get it! lol
As said before this sport is still pretty new and no where near as popular as drag racing. although some of the big tuning compaines are having a go now. once this takes off then you will see higher spec cars running.
Chris.
PS. hairykrishn do you know that the top fuel dragsters actually push well over 300mph in the 1/4 mile? in fact they run over 250mph in the 1/8! By half track the engines are deiseling and the sparks are doing f
k all! by full track (4 and a bit seconds) the rings are burnt up and the engine is basically fked! as they cross the line and pull the chute they cut the fuel off to stop the engine. once back in the pits they strip the engine and install new pistons, rings, bearings, etc and bolt the thing back together. Edited by chuntington101 on Monday 2nd April 21:26
liner33 said:
hairykrishna said:
They still seem 'slow' thinking about it. Red Victor, that mental corvette in the US and doubtless many of their competitors do >200mph in a 1/4 and are road legal. I realise top speed is a different optimisation but with a taller final ratio there must be all kinds of things potentially faster than this over a mile?
Off you go then , best of luck These are very similar spec to a drag car sure they aren't designed to launch hard and they are geared differently but engine wise the basic construction would share a lot of similarities with a car like RV2.
You can't have a violent launch and still be pulling at 250mph in a mile drag cars aren't about top speed it's all about the acceleration the speed is just the result of that
Drag cars and bikes are geared to be close to the limiter in top gear as they reach the end of the 1/4 mile
It's pointless to discuss what a top fuel car could do as there are literally dozens of reasons why it would not be possible but engines similar to alcohol burning drag cars have been used in streamliners in the past
You can't have a violent launch and still be pulling at 250mph in a mile drag cars aren't about top speed it's all about the acceleration the speed is just the result of that
Drag cars and bikes are geared to be close to the limiter in top gear as they reach the end of the 1/4 mile
It's pointless to discuss what a top fuel car could do as there are literally dozens of reasons why it would not be possible but engines similar to alcohol burning drag cars have been used in streamliners in the past
CBR JGWRR said:
Would a 1/4 engine last for a mile?
No. lets say a fast street legal drag car can do high 8 second times. a mile race is 205-30 seconds. Thats ALOT more time to be WOT (wide open throttle). This puts much greater stress on the engine. The intake air temps alone must be stupidly high at the end of a run in the Ford GT!
Chris.
chuntington101 said:
CBR JGWRR said:
Would a 1/4 engine last for a mile?
No. lets say a fast street legal drag car can do high 8 second times. a mile race is 205-30 seconds. Thats ALOT more time to be WOT (wide open throttle). This puts much greater stress on the engine. The intake air temps alone must be stupidly high at the end of a run in the Ford GT!
Chris.
But thanks for the explaination anyway.
chuntington101 said:
No. lets say a fast street legal drag car can do high 8 second times. a mile race is 205-30 seconds. Thats ALOT more time to be WOT (wide open throttle). This puts much greater stress on the engine.
The intake air temps alone must be stupidly high at the end of a run in the Ford GT!
Chris.
The GT was developing about 1650hp at 8000rpm on the 257 run... I can ask what the intake temps were if you'd like...The intake air temps alone must be stupidly high at the end of a run in the Ford GT!
Chris.
slinky said:
The GT was developing about 1650hp at 8000rpm on the 257 run... I can ask what the intake temps were if you'd like...
Yeah if you can do. If you are able to get that info then maybe you could get a full brakedown of the engine / trans for everyone to drool over to???
Chris.
liner33 said:
If the cooling system is correctly specced I cant see it being an issue you are going to get plenty of airflow for sure , my car was at WOT for 30 seconds or so and my intake temps were not a concern
Correct, but from the pics i have seen they where using the stock intercooler used in the ford GT. This is probably going to be well out of itsefficeny range as its running over 3 times the power of the stock unit (see slink's figures above). Not sure how big the heat exchange is on the GT, but it would have to be pretty massive to shift that much heat constantly for 30 seconds. Deffinately couldn't run a ice tank as it would not last the duration of the run. be very intresting to see the IATs logged for the run. Also you have to think about the cooling systems as a whole. no point keeping intake temps down low if that forces water and oil temps up.
hairykrishna said:
They still seem 'slow' thinking about it. Red Victor, that mental corvette in the US and doubtless many of their competitors do >200mph in a 1/4 and are road legal. I realise top speed is a different optimisation but with a taller final ratio there must be all kinds of things potentially faster than this over a mile?
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