Running sc and air con

dewismotorsport

What's the crack? Do I have to run it with a US pump or have heard about it running backwards with a change of belt run, is there a way to keep both? Not the end of the world if I have to loose it but would like to keep it.

Cheers Adam

evocarlos

keep it 🙂
just add a 2nd pulley to the cs bracket so the belt runs the alternator
theres info in my supercharger fitting guide 🙂

the US pump spins the same way its the US alternator that needs to be spun the opposite way with the cobalt tensioner

z22se-fan

Don't forget to space out the A/C pump an inch or so forward to allow clearance for the belt

dewismotorsport

Cheers guys, I tried searching but didn't come up, I did see that second tensioner mod, but then someone mentioned reverse pumps etc Where can I buy the tensioner wheel on its own? Don't really want to pay £100 of quid for the complete unit just to use the plastic wheel.

evocarlos

i just got one from ebay for £25 it was a z22se one

you can fit the cs bracket up against the block then put the alternator on top
@[deleted] i used your image again 🙂

but on the astra you will find clearance issues with the rad top hose
you can see why i fitted the bracket on the front and with a 2nd pulley
i had also read that poundy had been thru a few alternators with the bracket at the back so made me think to pop it on the front

dewismotorsport

Cheers for the pics, makes it easier to visualise, basically gonna build kit up on my spare engine so I know it all fits the engine etc before transferring it onto the car.

Any ideas on belt length to use?

evocarlos

p5k 1463 for easy fit
p5k 1453 for tight fit
im on a smaller pulley now so using a p5k 1440 i think

Dave_Gilbert

stop showing off then:cry::cry: mines got far to many ecus to fit a charger:cry: hahahahaha. anyone fancy swapping a vectra for an astra haha

evocarlos

Dave Gilbert said:
stop showing off then:cry::cry: mines got far to many ecus to fit a charger:cry: hahahahaha. anyone fancy swapping a vectra for an astra haha

you will have to buy the electric supercharger off ebay haha 🙂

z22se-fan

No problem. But that's not the way my belt is routed. I have the bracket at the front as well. It goes fully round the alternator pulley. Sadly I don't have the original picture anymore but @[deleted] probably has 🙂 I like the idea of the alternator being driven by the belt almost full (if that makes sense). The clearance issue with the top rad hose is resolved by routing it around the belt where the Original air filter box was mounted. Belt length is 5 pk 1675 which doesn't exist so I ordered 6 pk 1675 of an old Audi type and removed a rib (carefully)

Dave_Gilbert

evocarlos said:
you will have to buy the electric supercharger off ebay haha 🙂

whats 1 of them? will it sound like a charger and make it go like 1?:LOL::LOL:

evocarlos

z22se-fan said:
No problem. But that's not the way my belt is routed. I have the bracket at the front as well. It goes fully round the alternator pulley. Sadly I don't have the original picture anymore but @[deleted] probably has 🙂 I like the idea of the alternator being driven by the belt almost full (if that makes sense). The clearance issue with the top rad hose is resolved by routing it around the belt where the Original air filter box was mounted. Belt length is 5 pk 1675 which doesn't exist so I ordered 6 pk 1675 of an old Audi type and removed a rib (carefully)

heres your original image @[deleted] i did try it like this but the top of the belt was way to close to the top rad pipe so did the 2 pulley mod 🙂

evocarlos

Dave Gilbert said:
whats 1 of them? will it sound like a charger and make it go like 1?:LOL::LOL:

no lol its a 12v leaf blower

Dave_Gilbert

ohhhh🙁

z22se-fan

evocarlos said:
heres your original image @[deleted] i did try it like this but the top of the belt was way to close to the top rad pipe so did the 2 pulley mod 🙂
[ATTACH]49707[/ATTACH]

Ah Yes thanks 🙂 it is close Like everything with the s/c mod 🙂 You should see how tight my front bumper fits with the prerad:confused:

dewismotorsport

Cheers for the info guys (y)

evocarlos

z22se-fan said:
Ah Yes thanks 🙂 it is close Like everything with the s/c mod 🙂 You should see how tight my front bumper fits with the prerad:confused:

im still planning to buy a spal slim line fan and mount the prerad further back so i can get a new gsi bumper with grills 🙂

dewismotorsport said:
Cheers for the info guys (y)

always here to help 🙂