Some questions about NA versus Turbo versus Supercharged 5
Discussion
You can get a heated glass screen to zip into the mk.1 hood iirc. My hood is fine at the mo but if I ever need to replace it will go for a mk.2 hood with heated screen.
Agree with a lot of the comments here - make sure everything else is sorted on the car, alignment and tyres are critical and have transformed my car. If I were to go the FI route I think I would go s/c to keep the n/a characteristics of the car, maybe up to 190bhp or so - but having said that if I had the 2k plus to do that I would be selling the car and using the money to put towards a Chim
sorry!
Agree with a lot of the comments here - make sure everything else is sorted on the car, alignment and tyres are critical and have transformed my car. If I were to go the FI route I think I would go s/c to keep the n/a characteristics of the car, maybe up to 190bhp or so - but having said that if I had the 2k plus to do that I would be selling the car and using the money to put towards a Chim
sorry!Talking from experience of having a 1.6 110bhp Mk2 MX5, and then changing to a 2.0t 240bhp Astra VXR, the two just don't compare!
I'd choose the MX5 over the VXR any day. Power means sod all if you haven't got the fundamentals, like a good drive. For me, there's no substitute for a RWD, 2 seater, convertible.
(Btw, I'm not referring to the Teg, as I imagine they're quite nice to drive)
I'd choose the MX5 over the VXR any day. Power means sod all if you haven't got the fundamentals, like a good drive. For me, there's no substitute for a RWD, 2 seater, convertible.
(Btw, I'm not referring to the Teg, as I imagine they're quite nice to drive)
NiceCupOfTea said:
...If I were to go the FI route I think I would go s/c to keep the n/a characteristics of the car, maybe up to 190bhp or so...
A lot of people say that but I disagree. I think a turbo is nearer to the characteristics of the stock engine.With a supercharger you get torque everywhere. I can now overtake in 6th at low revs. I can accelerate from 1500rpm in any gear. I can thrash it if I want to and when I do it's very quick but I can go very fast using low rpm torque.
That's not very much like n/a .
With a turbo you don't tend to get much torque at low revs but as the revs build you get a big build-up of torque. If you want to go quickly you need to use a few more revs. Yes a turbo tends to have more torque in the mid-range than a turbo but it mostly builds at low-mid range.
That's much more like n/a - just a bit more hyper!
I'm still on the fence as to turbo or s/c though.
Combover said:
Per £ spent, which of the two (S/C or Turbo) gives more power for a standard bolt on kit?
That's a difficult one to answer. If you are just talking about bragging rights for the pub then a turbo will give bigger top-line figures. However if you consider total power to be the total area under the power/torque curve then it's probably much closer. I'd hazard a guess that a turbo will still have the edge but it's not all about numbers, you have to take driving characteristics into account too. A cheap sc will be more driveable than a cheap turbo because a cheap turbo won't start boosting until 4k rpm or so until you replace the downpipe & exhaust to a freer flowing system whereas a sc is a pump so produces boost all the time.As has been said before. Get passenger rides. Drives if possible.
A turbo can feel much more powerful than it really is due to the torque rush whereas an SC can feel less powerful that it is due to the smooth flat torque curve.
I'd offer my car but it's quite extreme for a SC setup and the weather isn't great for high power, summer tyres and a driver that isn't used to the car. Happy to give passenger rides though
A turbo can feel much more powerful than it really is due to the torque rush whereas an SC can feel less powerful that it is due to the smooth flat torque curve.
I'd offer my car but it's quite extreme for a SC setup and the weather isn't great for high power, summer tyres and a driver that isn't used to the car. Happy to give passenger rides though
Myself and guy with a turbo Mk1 5 with 230bhp both took the same passenger out for demo runs as he was trying to make the same decision. He said the turbo felt quicker in a straight line but mine felt scarier around the bends as I could keep the power up all the way through and get back on the power between bends much quicker making it feel quicker overall.
Depends what you want it to feel like really.
Depends what you want it to feel like really.
MrV said:
Quick question for you guys ,do you find you run out of gearbox before you run out of power ??
In other words whats your top speed ,yes I know the 5 isn't all about top end grunt I'm just being nosey as mine tops out at about 135 leptons
Yep, I have a relatively lowly (by FI standards) mark 1 JRSC, but on a flat, long straight and clear piece of autobahn, I thought it would be rude not to stretch its legs a little. The 5 isn't particularly pleasant at those sorts of speeds, so I didn't dwell on the dials for too long, but I think the indicated speed was somewhere between 1.35 and 1.40 leptons and the revs were around the 7k mark, so I decided discretion was the better part of valour and eased off. Car was still accelerating though...In other words whats your top speed ,yes I know the 5 isn't all about top end grunt I'm just being nosey as mine tops out at about 135 leptons
MX-5 Lazza said:
My Mk2.5 Sport 6-speed is geared for just over 160mph and I think my car will probably reach it. I know it can easily get to 150mph and is still pulling strong - on a private air-field of course!
I genuinely find it difficult to believe an MX5 will actually make 160mph, even with 230Bhp. MrV said:
Quick question for you guys ,do you find you run out of gearbox before you run out of power ??
In other words whats your top speed ,yes I know the 5 isn't all about top end grunt I'm just being nosey as mine tops out at about 135 leptons
yes, the back straight at Goodwood and my car hits the redline in top gear.In other words whats your top speed ,yes I know the 5 isn't all about top end grunt I'm just being nosey as mine tops out at about 135 leptons
Combover said:
MX-5 Lazza said:
My Mk2.5 Sport 6-speed is geared for just over 160mph and I think my car will probably reach it. I know it can easily get to 150mph and is still pulling strong - on a private air-field of course!
I genuinely find it difficult to believe an MX5 will actually make 160mph, even with 230Bhp. Gassing Station | Mazda MX5/Roadster/Miata | Top of Page | What's New | My Stuff