Noob Supercharger help?

[Fidhle007]

Ha. Really? You couldn't pay me to keep one of those... A distributor and no diagnostic capabilities? Oh yeah, and that timing belt...

A '93 to '95 M50 (which would be the easiest swap to get the kind of numbers you're talking about) in good condition should need far less maintenance work then an M20 (oil and spark plugs) and I'd argue that it's not that much more complex, just more advanced. You should be able to buy one for a few hundred dollars anyway.

[kickinindian]

:???:yea i know
i just really like the m20 motors alot simple and reliable :pimp:

[Fidhle007]

M50 motors are stupid cheap. The amount of other stuff involved would be about the same cost and with a good tune you'll be putting out the same numbers...

[kickinindian]

just for the info why are superchargers not legal in cali? i know turbos can be because my friend has his refereed on his mitsu truck and he used an eclipse turbo and its legal

[ak-]

Probably not.

Swap your motor. You can make 24v swaps BAR legal in California

[kickinindian]

seems like the supercharger would be cheaper to accomplish and if i can get it right i could make it removable to be able to smog every two years

[Fidhle007]

Why not motor swap? You'd have the same power numbers with fewer headaches...

[kickinindian]

well i was thinking going with the small m62 or a supercharger off a toyota previa van it seems like centrifugal are better for top end but twin screw and roots are better for low end? and thats kinda what i want so would i be able to make my goal to add 70-90 hp or would i need to do the head swap and get the stock i head and 1.3 motronic etc.

btw thanks kvasi for answering all of my questions ive never done any of this and im just trying to learn as much as i can

[Kvasi]

You should mount the blower on exhaust side and get a ic with as few bends on pipes as you can get..
Dont know centrifugal (belt driven turbos) superchargers to mutch, but twin scrolls "use" about 30 hp to turn.

So, its kinda easy and not exactly, 1 Bar boost = HP x 2 - 30 hp.

[kickinindian]

how much could you estimate or a web page i could be pointed to to see how much HP and torque i would gain?

[kickinindian]

im pretty sure but i cant go nuts without knowing what i can get away with where i live im thinking if i can get rid of the PS pump and go electric and install the SC there and have it go into a SAAB intercooler then go into the stock afm and be good hopefully but be able to take out the SC and install the stock airbox for smogging every other year

[Kvasi]

Isnt the b27 low compression? If so, boost it.. :)

[kickinindian]

the eta is the m20b27 i cant remeber the exact head number but stock one. that is about how much i would probably want to run 4lbs+-
like i said nothing too crazy

[Kvasi]

Dont know your eta and us models, but a stock european will take 0,3 bar of boost with all original. Both early and late models. Above that you will need to retard ign and add fuel.

[kickinindian]

yea i dont want anything nuts but just enough to make my eta not feel so SLOWWWW.....
so another 80 or so HP sounds pretty modest gain and but i didnt just wanna stop at stock i specs

could i even use the stock eta stuff? maybe switch to 1.3 wiring and swap in better valve springs and rockers? also plan of goin 3.xx LSD too and since the eta revs pretty low i was thinking i could just use the small Merc SC and i probably would not have to worry about leaning out at higher RPMs


it just seems that SC seems the easiest and or cheapest route to go for the HP and Torque gain