supercharger

i am looking to get a supercharger for my 147 gta! i looked at the autodelta one but i tink that it comes with engine as well! i was wondering if anywere else sells a supercharger on its own!

It doesn't come with the engine that's the cost of the work and all the parts, you need to already own the car/engine. You may well be able to buy the kit without fitting, try giving them a call.

thanks for that shuldive thought to phone! phoned there now yes that price is just for the supercharger and fitted! looks like ill hav to wait another wile b4 i think of spending that kind of money! only have the car about a month and still lovin the way it drives standard so am in no rush!

You can probably buy the components yourself for half the money.

Originally Posted by OperationAlfa

You can probably buy the components yourself for half the money.

What he said

I am also being serious I must point out. Autodelta are very good don't get me wrong, but they are expensive!

Originally Posted by OperationAlfa

I am also being serious I must point out. Autodelta are very good don't get me wrong, but they are expensive!

(Sorry dude ) but what he said again very expensive, least to say they would probably be the best people to approach for my engine, but i can't and i wont.... i can acheive the same results at home for less than half what they charge

I think it's the convenience factor and the fact that the work will be warrantied and everything that bumps the price up. although saying that some of their off the shelf componentry is equally overpriced.

They do seem to be doing a good job of selling on their brand though.

I'd seriously consider ponying up for the fitted 2.2JTS
supercharger from AD.....

...if it wasn't for the pesky French rules concerning
car mods.


(Instead, have to wait and see what the 1.8 turbo'd
engines are going to be like.)

Moved to Tuning Lounge

I like their upgraded wishbone arms for GTAs, £400 odd quid, its just a normal arm with a PowerFlex bushed whacked in! Cheeky buggers!

Actually it was a specially supplied arm that was subsequently polybushed by Autoldeta. Unfortunately the wishbone supplier they used dont make these any more.

The S/C kits aren't as cheap as you might think to do yourslef.
A engineer friend of mine looked at doing one to a track car he built after intially thinking it would not be too expensive.
When he totted everything up it was more than he originally expected.

Of course you have to get your installation, pulley setup and mapping right too.
Its not without risk, a shredded alternator belt due to a faulty install will also likely snap your cambelt which will bend all your valves..

does anyone know if anyones had a s/c fitted to a GTA on here?
i wouldnt mind asking them a few questions. Like.....mpg? 10? haha.
and clutch aswell actually? do u reckon u'd get away with a std GTA clutch?

Ask trailbraker.

bit of a longshot.... but try calling mark frisby at rapidgb Rapid GB - About Us - he knows loads of stuff about supercharging small block chev's but has also done bmw's etc etc - he may just be able to point you in the right direction?

i'm running a 5psi kit on my holden - 530bhp and actually does more mpg than originally! with 5psi no need for expensive intercoolers - just loads more oomph! - its a vortec centrifugal kit so no clutch frying at take off ;-)

Standard clutch woud still be fine for most folks, Rotrex is a centrifugal setup too.
The Rotrex chagers give increasing boost with square of RPM so really keeps on pushing up the rev range,
which works really well for a powerful FWD car.
No nasty "desiel like" low rev wheelspin when the torque comes in too early to be useful and then tails off up the rev range,
..as is the case for the most common supercharger type the roots supercharger
(e.g. Mini-cooper S)

If you have done additional engine mods though then an uprated clutch is required.
I would suggest waiting till your standard clutch wears and then replace with an uprated one, and a Q2 diff at the same time to control the power.

MPG will be affected by about 10-15%, especially with the larger fuel injectors they use on the higher output cars.

If you did a lot of rush hour commuting mpg would be affected even more maybe 20%.

On the plus side, long flowing journeys MPG is not so bad.

There are a few chaps on here who might be able to give more accurate mpg figures for a standard conversion that you are most likely interested in.

The torque increase is very significant indeed, much more than for the 3.7 N/A conversion by itself.

Originally Posted by bacon

does anyone know if anyones had a s/c fitted to a GTA on here?
i wouldnt mind asking them a few questions. Like.....mpg? 10? haha.
and clutch aswell actually? do u reckon u'd get away with a std GTA clutch?

Originally Posted by GhostyDog

I think it's the convenience factor and the fact that the work will be warrantied and everything that bumps the price up. although saying that some of their off the shelf componentry is equally overpriced.

They do seem to be doing a good job of selling on their brand though.

Their sports springs are fairly competitive a lot of the competition prices are quoted ex vat to lure you in.......

Personally I'd take the 3.7 option over a supercharger....but then I'm a bit of an N/A fanboy.

As for the clutch, if you do need to go uprated, be prepared to fork out. I couldn't find anyone offering uprated clutches for less than £700+VAT. Standard ones are good for over 300bhp, so I've been told.

Originally Posted by MattyB

Personally I'd take the 3.7 option over a supercharger....but then I'm a bit of an N/A fanboy.

As for the clutch, if you do need to go uprated, be prepared to fork out. I couldn't find anyone offering uprated clutches for less than £700+VAT. Standard ones are good for over 300bhp, so I've been told.

I thought clutches were rated in lbft or NM? I don't think rpms make any difference to their operation. Like revving a 100bhp car twice as fast to make 200bhp (just imagine you could), the standard clutch would take it fine. But if you doubled the torque to make 200bhp at the point where it originally made only 100bhp, the clutch would likely slip..

So you're probably right, a 3.7 NA making 330bhp or so at 7,800 probably would be too much of a strain on the standard clutch, but if you supercharged a 3.2 to make 330bhp at 6,000rpm, then I reckon you'd have trouble..

And I would go for the N/A too

Pud is correct it's torque that kills clutch that is why they rate the torque normally rather than the bhp figures. Torqye can kill a lot of things like driveshafts etc but bhp not so much.

Your right. I really should re-read what I type ...

Originally Posted by Trailbraker

Standard clutch woud still be fine for most folks, Rotrex is a centrifugal setup too.
The Rotrex chagers give increasing boost with square of RPM so really keeps on pushing up the rev range,
which works really well for a powerful FWD car.
No nasty "desiel like" low rev wheelspin when the torque comes in too early to be useful and then tails off up the rev range,
..as is the case for the most common supercharger type the roots supercharger
(e.g. Mini-cooper S)

If you have done additional engine mods though then an uprated clutch is required.
I would suggest waiting till your standard clutch wears and then replace with an uprated one, and a Q2 diff at the same time to control the power.

MPG will be affected by about 10-15%, especially with the larger fuel injectors they use on the higher output cars.

If you did a lot of rush hour commuting mpg would be affected even more maybe 20%.

On the plus side, long flowing journeys MPG is not so bad.

There are a few chaps on here who might be able to give more accurate mpg figures for a standard conversion that you are most likely interested in.

The torque increase is very significant indeed, much more than for the 3.7 N/A conversion by itself.

Cheers TB, much appreciated.