89 replies to this topic

[998city]

also what sort of compression does my engine have i got a standard 998 city engine

[1275 SPRITE]

You will have to change the bottom pulley for one with an extra belt drive to drive the charger.
For a suck through system like yours, a normal HIF44 should be used, not the turbo type as they are sealed for boost pressure not vaccum pressure like yours.
2 core rad would be a good idea too.

[1987_ParkLane]

oh so it is ok to buy the usual size bottom pulley and use a larger one for the top? what is the reason of slowing down the blower?

also where do i get larger diameter supercharger pulleys

This really only applies to the 998's as it sucks it too much air for them. Personally I'm not going to use any different size pullies, but thats me.

[1987_ParkLane]

You will have to change the bottom pulley for one with an extra belt drive to drive the charger.

Ah sorry if I didn't explain, you will need the special bottom pully for it, but you can get these from most places like MED .

[mattwho?]

well would it be best to increase the top pulley size or the bottom also do i need to do this because it would be making to much psi?

what sort of compression should i be aiming at? same as a turbo?

Are you talking about a 998? If you are, the bottom pully should really stay the same, and you should also really increase the size of the top pully so it doesn't spin as fast.

On mine I'm aiming for 8.5 - 9 CR at about 8psi.

I also got my supercharger kit for £875 brand new .

spill it where did you get it for that wonga?

[1987_ParkLane]

spill it where did you get it for that wonga?

I got it from Morspeed, but I wouldn't go there, just do a search and read and you will see why, thats all I'm saying on the matter.

Also I'm upgrading to a megajolt set up so I will be selling my brand new Jon Speed, aliminum bottom pully, I need to change this as I need the bottom pully with the trigger wheel built into it from MED, here is the link to the Jon Speed one:

http://www.jonspeed4...?productid=1288

They are £150 new, so I'll be looking for around £130 incl. delivery, if anyone is interested.

[1275 SPRITE]

Nice, do you have any pictures?

[1987_ParkLane]

Nice, do you have any pictures?

I'll take some now .

[blister]

would it not damage the engine to run both the usual pulleys that would be used on a 1275 on a 998 then?
1987_ParkLane

[1987_ParkLane]

would it not damage the engine to run both the usual pulleys that would be used on a 1275 on a 998 then?
1987_ParkLane

I'm not sure what you mean ?

[blister]

well if both the supercharger pulley and the bottom pulley are the size for the 1275 kits then would the turbo not be running to fast?

[1275 SPRITE]

no, it will just mean it would produce slightly more boost than on a 1275.

[1987_ParkLane]

No, and as James just said, it would produce more boost than on a 1275.

[THE STIG]

moorspeed kit is just a kit bought in from jonspeed,


i have a inlet pipe and carb that will be for sale , has yellow spring and float boat kit fitted .would need to change needle if fitting to a 998

see here for pics of fitted http://www.theminifo...howtopic=127198

jonspeed bottom pulleys are £100 on ebay search supercharger will bring it up also a few superchargers on there

heres a gen 5 with the teflon blades cheap just needs a drive pully http://cgi.ebay.co.u...emZ230348439941

this guys doing them for £194.99 http://cgi.ebay.co.u...emZ250444946760

[1987_ParkLane]

jonspeed bottom pulleys are £100 on ebay search supercharger will bring it up also a few superchargers on there

Ah yes, well someone can have mine for £85 incl. delivery .