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Do you mean it's easy to convert a catalyst equipped car to normal exhaust when installing a Mountain chip? (not sure of what closed loop/open loop means, even if I think it's related to the lambda sensor ... ^^)HJ2 wrote:Even better: If you want to convert your car from open loop to closed loop. this is possible too, without too much work to be done
Well as far as I know some SE were actually fitted with a catalyst (depending on the country)HJ2 wrote:Uhm, no, the other way around.
the SE it standard open loop, without a Cat. You can tell because of the higher fuel consumption
OK, thank you. I was confused because I thought the lambda sensor had something to do with the catalyst, and I believe most people prefer not to have one on their Élan. (I thought the lambda sensor had to be removed when removing the catalyst)You can convert the SE to closed loop with another chip and addition of an oxygen sensor (Lambda) so you'll get a significant better fuelconsumption (No Cat is needed)
Interesting.I have removed the Cat on my Closed loop S2 and it passess emission tests without any problem.
... when removing the catalyst from a car, the engine management has to be modified, too.
Scott wrote:ok you propose hispec or wilwood instead of ap unless you do track racing. ok.. what about rear brakes though?? what choises are there?
also i have to say that my elan has 0.75 bar turbo boost so i guess if it comes to a chip i need everest.
so is everest and generally these chips safe choices? i mean the reliability.
and what do you gain as performance?not in papers. but in real.. what differences have you seen on your car? less RPM in high speed, bigger top speed, better 0-60?
MPx wrote:Scott wrote:ok you propose hispec or wilwood instead of ap unless you do track racing. ok.. what about rear brakes though?? what choises are there?
also i have to say that my elan has 0.75 bar turbo boost so i guess if it comes to a chip i need everest.
so is everest and generally these chips safe choices? i mean the reliability.
and what do you gain as performance?not in papers. but in real.. what differences have you seen on your car? less RPM in high speed, bigger top speed, better 0-60?
I've got Bob's HiSpec kits both front and rear. The brakes work well in combination much better stopping and much more reassuring bite than std. The rears have been a PITA with the need for reengineering by HiSpec and the handbrake is every bit as poor as it could be - but luckily I dont use it, so it only has to pass an MOT.
If you have .75 boost in a std car then I suspect either the guage is wrong or something else is (sticking wastegate?) or its already been chipped. I've got a mountain switcher chip, but having fitted it, run it on 6 (everest) 99.9% of the time so I could have saved the trouble and fitted a std everest without the switch. In my hands Elysium doesn't make much difference, and my understanding is that its more marginal on fuelling so for me not worth risking. Although I'm only rarely trying hard enough to really need Everest output, its reassuring that its there - the car is MUCH quicker to accelerate and doesn't drop off for longer - so I'm now used to that response and it feels good, dont like going back to std, and cant see the point of going in between. There is an MPG penalty (~20%), but I dont drive far enough often enough to really bother about that - and I find the power addictive so I'm not trying for max MPG. NB I've also got the 2.25 piper exhaust with pre cat eliminator and sports cat, so that also helps with everything except MOTs (it will now NOT pass emissions as is).
In my view the std car is brilliant, but it always felt like it could handle more power in terms of both go and more importantly stopping. The Everest+Exhaust upgrade has given it the a very appreciable boost and its a much more satisfying and fun drive. Its fast as in hot hatch fast - but how fast depends on what you're used to and it still wouldn't frighten any biker on a 600 or bigger sports bike. Its as fast or maybe marginally faster than my Esprit now, but my Esprit is slow if you're used to a Sport 300 Sport 350 or S4s. In my experience the skill of the driver makes much more difference than any mods to the car - I'm still regularly lapped at Combe by my mate Dave in his 1968 S2 Elan which isn't as fast on paper....but in the wet I was quicker than a 260 Cup Exige which would normally leave me for dead. The brakes are in a different league and IMO the best and most important upgrade that you can do - unless you're prepared to work as hard as Pinky does on optimising the std ones.
HTH
MPx wrote:If you dont use the extra performance then there wont be any worse fuel consumption, but if you do use the extra performance available then obviously you will need to buy more fuel.
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