Superchargers??? What do you know??

chriSTIan · Post by **chriSTIan** » Mon Oct 15, 2007 9:23 pm

You'll definitely need an after market fuel pressure regulator,i have one of the CAPA kits that i bought a while back (2nd hand),i got the install book as well,
I didn't get a Rising Rate Fuel Regulator with it so i bought one from the states.
Biggest problem is ignition advance/retard or the all dreaded pinging.
The kit i have comes with a very basic water injection system,
or you can run an i/c or get your computer remapped or better still go with a harness/ecu off a wrx/rs

SuBaRiNo · Post by **SuBaRiNo** » Mon Oct 15, 2007 9:46 pm

I might need to look at Tims EJ20T... if thats the same in regards to the fuel pressure reg then there should be no reason it would need to be changed.

Kinda difficult little project to do this one... everyones opinions different. Thanks for the imput Christian.

Dave

steve_rising_sun · Post by **steve_rising_sun** » Tue Oct 16, 2007 10:06 pm

Hi Guys ,the standard fuel pressure regulator / injector set up will work fine with the mild boost that the front EJ22 pully will produce with a 1gg blower but you will need a basic water injection system. At full tilt with a good standard fuel system, leaning will not be a problem. The knock sensor is only able to retard about 5 to 6 deg. so even on PULP pinging is an issue. Install the blower as draw through and throw your BOV at your neighbours dog. In the standard ports all vacumn accessories will work fine. You can switch off the clutch at idle to help with vibration as it is hard to solidly mount the blower on the EJ. Running up to about 4 to 5Ib this will really make a big fat Liberty wagon go very well. Running a draw through means that closed or part throttle the blower produces little volume and requires little energy to drive.
Steve

SuBaRiNo · Post by **SuBaRiNo** » Tue Oct 16, 2007 10:12 pm

Thats a HUGE help Steve.... Can someone explain what he means by setting it up as Blow through... also what is a water injection system?? Please excuse my lack of knownledge on this.

Dave

Matatak · Post by **Matatak** » Tue Oct 16, 2007 10:14 pm

good stuff steve.

wts a water injection system? im curious.

steve_rising_sun · Post by **steve_rising_sun** » Tue Oct 16, 2007 10:21 pm

Please give me a call for a quick answer 08 83496960bh, and I will try and post a written response a bit later.
Steve

bluesteel · Post by **bluesteel** » Wed Oct 17, 2007 8:44 am

heres an explanation for you, way too much effort to write it out myself

daveosubi · Post by **daveosubi** » Wed Oct 17, 2007 10:23 am

Autospeed has some good articles on water injection too.

http://www.autospeed.com/A_107970/cms/article.html

http://www.autospeed.com/cms/article.html?&A=1539

My brother was an apprentice mechanic at an old wv shop a while ago, he said a kombi came in with water injection, not sure what was wrong with it, but he said the internals around the combustion chamber were very clean, shiny and looked like new. I also know it was used in ww2 fighter planes for short power bursts.

Ive also read stories of improper designs syphoning water overnight into the motor, because there water tanks were mounted high above the outlet for the waterinjector. This results in bent rods when starting in the morning, and im going out on a limb here but, I guess you have a real hatred of that happening.

YouTube · Post by **El_Freddo** » Wed Oct 17, 2007 10:33 am

daveosubi wrote:This results in bent rods when starting in the morning, and im going out on a limb here but, I guess you have a real hatred of that happening.

Hehehe... I'd second that

Bennie

SuBaRiNo · Post by **SuBaRiNo** » Tue Oct 23, 2007 10:33 pm

Whats peoples opinions on using a timing belt idler pulley as an engine belt pulley? Problem i have at the moment is im wanting a pully around 50mm in diamater (flat type). Smallest engine pulley listed is infact that diameter but impossible to locate.

Dave

Matatak · Post by **Matatak** » Tue Oct 23, 2007 10:35 pm

thered be nothing wrong with that
only thing is that most Timing belt pulleys are alot wider (which means u dont have to be so exact with the positioning of it to keep a belt on it

SuBaRiNo · Post by **SuBaRiNo** » Tue Oct 23, 2007 10:47 pm

I have been told by a pully company that they may not be able to deal with the RPM although i have found another guy running a similar set up using the same pulleys for the same use... with no problems.

Dave

YouTube · Post by **El_Freddo** » Wed Oct 24, 2007 4:04 pm

I don't see why they wouldn't work, you might want a key in there though.

For the width of the pulley, join 2 of them, similar to the cam pulleys on the crank (EA82) - actually, use them!

Just knock that ridge off one of them and you'll be sorted.

Cheers

Bennie

SuBaRiNo · Post by **SuBaRiNo** » Wed Oct 24, 2007 9:03 pm

Are they flat or ribbed/cogged?

Dave

YouTube · Post by **El_Freddo** » Fri Oct 26, 2007 2:25 pm

SuBaRiNo wrote:Are they flat or ribbed/cogged?

Cogged for a cam belt... I presume this is what you were after?

Cheers

Bennie

SuBaRiNo · Post by **SuBaRiNo** » Fri Oct 26, 2007 4:26 pm

no flat... for the back side of the belt... but i got one now that looks like it should work sweet... will keep ya updated.

Dave

SuBaRiNo · Post by **SuBaRiNo** » Sun Nov 04, 2007 5:51 pm

Anyone know where exactly i should hook a boost guage up?

Would a "T" peace on the brake booster hose before the one way valve work?

Dave

SuBaRiNo · Post by **SuBaRiNo** » Tue Nov 06, 2007 8:02 am

Hmm no one knows on that one. But i think thats a fine spot to patch it.

Another question... by halving the size of the Super Charger pulley will that infact make it spin double the speed and result in twice the boost??

Dave

bluesteel · Post by **bluesteel** » Tue Nov 06, 2007 8:25 am

yes... thats about right

did matt send you all the different ones he had?

he had a really small blower pulley to go with an underdrive crank pulley , but we couldnt get the small pulley to stop slipping and that was with over 180 degrees wrap around it!

mattims · Post by **mattims** » Tue Nov 06, 2007 7:34 pm

you probably wont get twice the boost for twice the speed. Blowers get really inneficient at high revs .. but you might be close going from 3.5 to 7psi ish. I would look at keeping all your pulleys as big as possible to avoid slipping belts. If you can increase the size of your crank pulley and then get an underdrive kit for all your other pulleys that would be better. but probably more work and money