Supercharging DIY

Yello

Finally Ive got time to work on my Speedster/VX220 SC conversion :D its a quite funny and learning experience, its not just to buy a inlet and the SC and think you have it all, theres a lot of other bit`s and pieces you need. I was lucky and found SC, inlet pulleys brackets etc.. cheap from the US, only gone 1600miles and in like new condition.

This is what I got:

Im going for the LSJ 6rib belt setup, and have bougth a new LSJ alternator and a used AC-compressor that I have modified a little bit :twisted: also got the LSJ waterpump bracket, this is also a bit modified now (pics coming) my goal is to keep everything looking like it`s OE :think:

AC-compressor:
Before:

After:

Yesterday:

Sorry for poor quality pictures, will use the SLR from now on.

Well thats all for today, more info and pics coming up..

PS! Sorry if my English are not perfect, I`m Norwegian cheers..

nickb777

Well done on doing it yourself, did you say AC on a vx?

vocky

don't forget to get a spare auxillary drive belt if you have to ship one from the states 🙂

looking good, keep the updates coming 🙂

Yello

Not an AC, but parts of an AC-compressor, just for the pulley, to keep the LSJ belt setup.
Yeah Vocky, Ive heard about problems with the belt, so I ordered 3 of them 🙂
Updates will come, haven`t got time to do anything today 🙁

rik1083

Yello said:

Yesterday:

make sure you can reach the bottom manifold mount (you might need to take the alternator off to get to it?)

glider

I'm looking forward to following this thread :thumbup:

exmantaa

I'm missing the 6 ribbed LSJ crank pulley, but you probably have that covered. :thumbup:
You will use standard 2,2 compression with Courtenay/Hitec ECu remap, or..??

Yello

Yeah Ive got it covered, got the crank pulley, alternator, belts etc.. from www.worldpartsexpress.com
Il use standard compression and Courtenay remap, the ECU are at Courtenays now, seems like some great guys over there, who knows what they are talking about.

rik1083

http://www.worldpartsexpress.com good link!

I can see the crank pulley.. but which one do i choose, there are 3 and all seem to say they are ok for the 2.0
http://www.worldpartsexpress.com/partlo ... atalogid=1

Do they have the belt and tensioners/idlers listed there? I can't seem to find them in the maze of categories
Do you have the part numbers needed for these bits.. could be very useful 🙂

Thanks
Richard

p.s. it was $320.53 for the alternator? :o

exmantaa

Djeezzzz, I paid $70,- for my LSJ alternator, including shipping to Holland!! (Morad carparts in the US..)

I will go for the Atom LSJ belt-setup, as this has standard no AC pump. (I heard that Hitec/Courtenay now also use this same set-up in their latest SC conversions..) It uses a one sided belt and the standard 2,2 belt tensioner, but needs an extra idler pulley. 8-)

alanoo

Yep this is a clever design, but how can we source this new idler pulley ?

exmantaa

We can probably buy it from Hitec / Courtenay, or fabricate it...
This is how it looks. (it seems to use the same plastic pulley as the spanner wheel)

alanoo

Interesting

rik1083

is the tensioner (Spann) the same as ours?
... so we only need the piddly little idler?

do need the atom alternator? is it the same as the lsj alternator?
how many ribs on the belt?

oops we're hijacking your thread! 🙁

exmantaa

This tensioner ("spanner" in Dutch 😉 ) is the standard 2,2 version.
The standard 2,2 alternator has 5 ribs, but the LSJ alternator is a 6 rib version and turns normally opposite to the 2,2 alt. (I wanted one for my LSj engine.)

Easiest conversion is: 2,2 crank pulley, 2,2 belt tensioner, the 2,2 alternator, a new idler pulley as in the pics and a special 5 ribbed SC pulley. (but you probably want a smaller SC pulley anyway)

or version B for 6 ribbed belt: Use LSJ 6-rib crank pulley, 2,2 tensioner, 6-ribbed (LSJ) alternator pulley, fabricated idler pulley, standard (or smaller) 6-rib SC pulley.

Or you can opt for the original LSJ belt layout as above. With complete LSJ tension system, LSj Alternator, the AC pump pulley and a double sided belt...

Back on topic:
Very curious to what injectors, but especially to what SC pulley size the Courtenay modified ECU is calibrated for. Can you measure the diameter of this before install please?

rik1083

when I have talked to courtenay before, they say that in order to re-use the 5 rib setup (as on our cars), they need to reposition the SC pulley by a couple of mm (using a pulley puller I suppose) so that 5 of the 6 groovs match up properly with the 5 on the belt. Is that what the atom does as well?

I'll do whichever setup I can get my hands on easiest/cheapest dunno..

alanoo

The atom should use a native 6 rib setup as it is an LSJ

rik1083

alanoo said:
The atom should use a native 6 rib setup as it is an LSJ

it doesnt use the "native" setup.. that's why we're having this conversation..

exmantaa

The Atom has a 6-ribbed belt (I asked this on the US forum), so they use "option B" on their LSJ engines. 8)

alanoo

rik1083 said:

alanoo said:
The atom should use a native 6 rib setup as it is an LSJ

it doesnt use the "native" setup.. that's why we're having this conversation..

Yep sorry I wasn't clear enough
It uses "a" native 6 rib setup, not changing the LSJ puleys
but not "THE" native LSJ full setup 😃