144 replies to this topic

[Foxy]

Really surprised you got a SC car with those bits for £8.5k.  Was it bought in the winter or a desperate seller?  Not seen many up for that price that didn't need work. 

I know Chris-SC is Welsh, but that doesn't make him desperate.

I presume the assumption would be: wrap = respray required. Therefore the respray would be factored in anyway. It does sound remarkably cheap. No respray required and it would have made 10k+ I would have thought.

[Graeme Lambert]

Really surprised you got a SC car with those bits for £8.5k.  Was it bought in the winter or a desperate seller?  Not seen many up for that price that didn't need work. 

 

It was bought in winter, but I gave ChrisSC a hassle-free sale (if you ignore me breaking my neck).

 

But I sold in winter too, an 03 turbo with 36k miles but in very good condition stage 2 and got over £12,500 for it.

 

G

[Hark]

I think you did very well there mate, especially looking at what Nomex just listed his for.  I reckon it's going to be a very special car when it's complete.

[ghand]

i think the gearboxs are the same but i had a higher rev limit (i think) 

  NA gearbox does have shorter gearing than the VXT (though not as short as the 4.17FD box) and if all things were exactly equal, would accelerate quicker than a VXT on it's standard box.

Thanks for that, See Chris I do remember the odd thing now and again

[CHILL Gone DUTCH]

i think the gearboxs are the same but i had a higher rev limit (i think) 

  NA gearbox does have shorter gearing than the VXT (though not as short as the 4.17FD box) and if all things were exactly equal, would accelerate quicker than a VXT on it's standard box.

Thanks for that, See Chris I do remember the odd thing now and again

I'm always learning something new, But not really interested in turbos

[Captain Vimes]

 

I´ve saved a few results from the dutch forum where the numbers come from. (will paste them here when i get home)

 

 

0-100km from the dutch fourum. (All done via perfbox sessions only).

 

3.50 (turbo 477 pk)
3.84 (turbo 380 pk)
3.90 (turbo 290 pk)
4.30 (turbo 283 pk)
4.41 (turbo 4-500 pk)
4.46 (2.2 turbo 260pk)
4.47 (2.2 turbo 298pk)
4.68 (2.2 SC 256 pk)
4.80 (2.2 SC 245 pk)
5.70 (2.2 NA 190pk)
6.18 (2.2 NA 147pk)
6.70 (2.2 NA 147pk)

 

 

For anyone that likes numbers/data I HAD to put this into a quick graph and see if there was a simple formula to calculate 0-100kph for a given power. (I know power to weight would be better and there are LOTS of variables but the numbers suggest there's a fairly good relationship between power and 0-100kph here)

 

Anyway, 2 of the numbers look a bit strange (4.41 @450pk and 3.90 @ 290pk) so I've dropped them for the formula, but the others conform to a very simple formula with quite a good fit (for those interested the R-squared value is 97.2%).

 

Formula is:

 

           Y=91.946 / X^0.535

 

where Y=Time(secs) and X=Power (pk - not sure how close this is to bhp?).

 

 

Putting the formula to use we get:

  - Standard NA      Y= 91.946 / 147^0.535 = 6.4s

  - Standard Tubby Y=91.946 / 197^0.535 = 5.4s

 

Both of these are quite a long way behind what is quoted in the official stats but these are based off 'normal' drivers on the road so should be expected. They align to the stats shared by Smiley pretty well.

 

So on to mods:

  - Stage 2 SC/TB Y= 91.946 / 250^0.535 = 4.8s

  - Stage 3 SC      Y = 91.946 / 300^0.535 = 4.3s

 

Graph here:-

Edited by Captain Vimes, 28 January 2014 - 12:06 AM.

[JG]

Looks about right . The NA was notorious for not making it's claimed 0-60 time.

[jameso]

I would also say certainly to 60 and 100 that torque/tonne is the main factor not bhp/tonne

[Graeme Lambert]

 

 

Really surprised you got a SC car with those bits for £8.5k.  Was it bought in the winter or a desperate seller?  Not seen many up for that price that didn't need work. 

I know Chris-SC is Welsh, but that doesn't make him desperate.

I presume the assumption would be: wrap = respray required. Therefore the respray would be factored in anyway. It does sound remarkably cheap. No respray required and it would have made 10k+ I would have thought.

 

 

Yes,

To be fair as I was/am hoping to do a colour change the paintwork condition was of little concern to me and was indeed factored into my valuing of the car, and other cars offered.  

[Mopeytitan]

  I have other cars to use so more than likely wouldnt sell it if it was supercharged as i could use it occasionally but just wanted to make sure the money i spend wasnt going down the drain.  

  Don't go there then. Most SC VX's go about 2k over their NA price. (after investing 3.2)   

Really?!?!? Most NA's are going for £5-7k at the moment. Can't say I've seen a lot of SC cars up for sale for £7-9k. I think its nearer £3-3.5k more.

In fairness I got my sc for 6900 but probably due to being a bit cosmetically ropey. But I would definitely say a good nick one would be around 3-3.5 more than the na Al

[2-20]

^{Are the number of gear changes the same on a SC or Turbo to reach 100 Kph ?}

Edited by 2-20, 28 January 2014 - 12:20 PM.

[siztenboots]

100kph =  62mph , can the 2.2 do that in second or do you need the rpm raised a lot more?

[ciderbooze]

Just makes it in second with the cms (Klassen) map. I believe , too busy looking out the window to be sure though.

[Mangham54]

If rpm limit is raised above 6500rpm, then it is possible in 2nd. I would have thought you can just scrape 100kph in the NA if you rev to the redline and bury the clutch at the right moment, before the rev-limiter kicks in. You are only short of 62mph by a couple of mph in second gear in standard fettle. The TMS re-map increased the rev-limit so you could get above 62mph in 2nd.

[2-20]

OK so only a standard NA need the third gear engagement (which doesn't help the times)

[smiley]

OK so only a standard NA need the third gear engagement (which doesn't help the times)

 

Correctamundo.

[Tusk]

Does anyone supply a complete supercharger kit? I know Courtneys sell various pieces, but is there an option somewhere to get all the required bits at once without fitting?

 

If so, how much would that likely cost?

[Nev]

I would also say certainly to 60 and 100 that torque/tonne is the main factor not bhp/tonne

 

Indeed, it's about:

 

1) torque (until you start overcoming resistances which are negligible in 0-60) 

2) traction and weight transfer onto the drive wheels (which the heavier VXT promotes)

 

Regardless of that though, any 250 BHP supercharged VX will be pretty damn quick though

 

 

Edited by Nev, 08 February 2014 - 06:08 PM.

[Captain Vimes]

Does anyone supply a complete supercharger kit? I know Courtneys sell various pieces, but is there an option somewhere to get all the required bits at once without fitting?

 

If so, how much would that likely cost?

 

Courtenay's are the only place that I know of that have the parts on the shelf ready for a DIY SC conversion but there's no 'kit' exactly. 

 

Have a look half way down this thread( http://www.vx220.org...r-to-the-z22se/ ) for a link to a pdf that contains a fairly comprehensive list of parts needed.

 

Total cost will depend on:

 

• what power you're going for
• whether you can find a second hand charger at a good price
• what mapping option you choose
• Exhaust option
• CC option etc.

A basic stage1 (210bhp) can be done for £1600. Stage 2 (250bhp) for around £2k if you're willing to be creative on some of the technical bits and clever in sourcing but could easily escalate to over £3-4k in parts if you buy all the 'best' off the shelf parts.

 

TBH the Lee/Joe option is good value at £3.3k (+final mapping + exhaust?)

[Tusk]

Thanks mate, very useful. I've not had the car long and I love it how it is but as ever the urge to tinker is always there! I'm insured with a mainstream company at the moment, if I can get a sensible quote from a specialist a supercharger becomes more realistic. Budget wise I think all options are good value for the gains achieved. £1600 for stage one is very tempting as a starting point for budget creep!