Discussion
craigjm said:
Yeah would be interesting to know how much space the batteries would take up to get 250 mile range with decent performance in a car that weighs 1800KG
1800kg before batteries?Quick google suggests Tesla Model S starts at 1,950kg with 60kwh battery pack, 2,100kg with 85kwh - and the 85kwh pack weighs 540kg, which'd tally with the weight difference between the two.
So, without batteries, that's a 1,600kg car. 85kwh gives an official 240 mile range. So you'd probably need 90kwh to give you that 250 mile range, call it 600kg.
As for space...
pic from http://ecomento.com/2015/02/11/tesla-model-s-batte...
Just to bump this topic a little bit. I never could get a response from gear vendors that 300BHP posted about in terms of the transmission splitter. However, i found a company in the UK and the response was that one suitable for my car would be 3 grand plus vat and fitting! hmm thats a lot of fuel based on a 25% saving on cruise! The UK supplier said that the mod would give me the lower RPM at cruise I was looking for and 25% fuel saving on cruise but then started talking about If you wanted better acceleration they could do a higher stall torque converter and install a valve body reprogramming kit which apparently would make the vehicle launch better and make the shift faster and cleaner. Not sure what that entails though so have replied to ask for more details.
craigjm said:
Cheers 300bhp that is pretty much my thought
I am sure the GM box can fit and there are adaptor plates available. Have had an initial quote of 2k for a gearbox and fitting. This would give it some improved oomph off the line and a quieter and slightly more economical cruise at motorway speeds.
The later 6 speed GM boxes are physically bigger so would require some hacking of the car I guess
The most popular engine swap for these cars and other series 1-3 seems to be Americans replacing the engine with a 6.2 LS3 Chevy v8 and the aforementioned GM four speed box.
The Lord giveth and He takes away. I am sure the GM box can fit and there are adaptor plates available. Have had an initial quote of 2k for a gearbox and fitting. This would give it some improved oomph off the line and a quieter and slightly more economical cruise at motorway speeds.
The later 6 speed GM boxes are physically bigger so would require some hacking of the car I guess
The most popular engine swap for these cars and other series 1-3 seems to be Americans replacing the engine with a 6.2 LS3 Chevy v8 and the aforementioned GM four speed box.
Yes, the 4L80 will give you a head start at the traffic lights but what the 3 speed torqueflite mated to the Jag V12 gave you was one of the fastest 50-70 cars of the era and a performance that still takes a lot of beating. The ratios of the 4L bog you down by comparison in that zone which is ultimately your overtaking zone. You'd definitely want to try before you buy as you might not like the difference.
Going back to other points, most modern kit can be shoehorned in terms of length but most modern engines are DOHC and so very tall and wide at the top so usually show problems there. Post 4 speed autos are nearly all electronic so you need to know that there is an aftermarket TCU replacement or remapping. And even then most kits are for banging in crude changes so no smooth driving.
The reason why the LS is king is because it is very compact so can replace almost anything without having to relocate the entire drive train and it is massively supported with adapters and electronics etc.
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