My 500$ wonder (July 25th, MBC and 42#injectors )

[TMK-001]

Hahahaha, not surprised. Its always cool (well I think) to be really stealth!

[culpy]

hey Cmac,

Whats your setup on your 02? Wheel size? Rim size? Shocks and springs? Thats just how I want mine to stand!! Mean!!!

Thanks, Culp

[Pinepig]

15x6.5 BBS RMs et33 with 195/50 15 tires

Coil overs up front on shortened struts with Rabbit inserts

Rears have cut stock springs and bilstiens.

[PSloan]

I'd like some words of wisdom regarding your intercooler and BOV setup. I understand the theories but I'm not well learned on deciding whats crap and whats not. what size intercooler are you running - and what compression ratio?

[Pinepig]

The intercooler is a 12x3x6.5 vertical flow ( much more efficient than a horizontal flow ), the theory is that the greater the heat differential between the compressed air ( inside ) and the outside air the more heat exchanging occurs. On an horizontal flow most of the work is done by the first 8 inches or so of the intercooler so the last 12 inches ( if a 20 inch long core ) does relatively nothing. The size I used is about maximum if you go with a 3 inch thick core, a 16 inch wide one would probably fit if you dropped to a 2 inch thick core. Make sure whatever core you use will flow enough air for the HP you are looking to achieve, Bell intercoolers has a nice chart on their site that shows the figures for bar and plate cores.

The BOV can be placed anywhere in the charge piping ( before or after the intercooler ), I used the one from a DSM ( Eclipse ) because they are cheap ( 30 bucks on Ebay ) and work well as is up to 19psi, squish them a bit and they'll hold more boost without leaking.

Block is a stock 2002 motor ( 8.3 to 1 IIRC )

[PSloan]

Nice! Thanks!

[donfjohnston]

(nt)

[Pinepig]

The other day my buddy Greg gave me a manual boost controller so I put that in, note to self, check operation before installation. I had the MBC turned all the way closed instead of open to start with and the first run down the street was interesting to say the least. A quick look down showed the boost gauge pegged at 3200rpm ( 25psi) That can't be good on stock pistons. I've been playing with it all week ( touchy little bastards ) and finally have it set to 11psi, I still have the creep up top but it gets to 11 ( spinal tap reference ) quicker. I'm seeing positive pressure by 2000rpm. Turbo sounds wicked spooling up.

I put the 42# injectors in it today as the 24s were going static at about 5000rpm before the MBC, it was working fine anyway but I didn't like the fact that eventually they would burn up if I kept flirting with high RPMs. So I'm back to running data logs and getting a good tune on it again. I'll report back in a few days after I have it running perfect and let you know the difference a MBC can make ( plus a couple of pounds of boost )

[eggie]

Hey Charlie,

Just checking in on your progress. Looks good. We wanted to make a trip up this summer, but with the baby, it doesn't look promising.

I'll call ya if we do.

Ltr,

Michael

[canadamatt]

It looks like you just chopped off the vband flange and welded the downpipe straight to the flange. Was your exhaust flange 2.6" ID perchance? I'm trying to find a vband and flange for a hx30, but its a bit of a wonky size it seems... I'm hoping I can use a 2.5" vband and just use the die grinder to open it up a bit..

Matt

[Pinepig]

I used the 2.5 inch Vband kit .

Yep it's a 2.6 inch, so the 2.5 doesn't fit perfectly. to fix it I made a gasket out of some 16ga sheet metal to widen the tapered parts a bit ( a big thin metal donut ) , the 2.5 v band seals up just fine now.

[Pinepig]

thwack for a buddy having a problem finding the thread.

[cj]

Removing that air injection pump will result in 10hp. Also you'll find your 1/4 mile times will drop 3 tenths.

:-D

Cris

[Pinepig]

Removing that air injection pump will result in 10hp. Also you'll find your 1/4 mile times will drop 3 tenths.

:-D

Cris

Took that thing out when I did the water/methanol injection a few weeks back, 22psi FTMFW.

[fiftytakedowns]

HEy man Im in davis at the school and heard about your project. Some people were trying to talk me down the same route, and im really tempted. Cause junkyard turbos area easy, and some guys in the DAvis Motorsport club are real good with Megasquirt and would help me with the project.

your block is stock? not lower compression pistons? ARP Head studs? have you done any headwork. HOw much have you put into turbo (kit) parts

Thanks man