legacycentral bbs

It finally came. thanks adam.I will take pics of it tonight. should be able to put it on within a couple weeks. I can't wait.

How big is the Vf 23?

Mark,

See the turbo chart I posted on the TD05 upgrade thread.

It flows 423 CFM at 14.7 PSI.

I can't wait to see what kinda numbers you're gonna be able to put down on a dyno with this turbo, exhaust components, and your autronic ems!!

me too.

I adde a few pics of the turbo. they can be found at
http://photos.yahoo.com/blndcs811 click on vf 23

Hey, that looks cool!!!, is this the biggest turbo that we can fit on our cars?

Mike

TD05 e'll fit, both the 16G small and big compressors are larger. Theres also the Larger 18G and the TD06 20G which is massive, and has the power for 500 hp.

Mark,

the vf 23 is not a real big turbo. it is large by ihi standards. it has very good spool up characteristics and will flow 20psi. I am curious what kind of power I can put out with this turbo. I am not sure if it will meet my goals but should come close. I may use an hks turbo eventually. they look like pretty nice turbines.

Glad it arrived safely Kelley....please post pics of your car, or email them to me and we'll get you added to our members car section!

Adam
www.z1auto.com

And FYI everyone, we are running an IHI tubro GB!! Checfk out i-club.com or nasioc.com GB sections.

Turbo information can be found here:

http://www.z1auto.com/10.02/turboAndIC/ ... Specs.html

Thats a good looking turbo. I also like your placement of the gauges. Thats where I put them in my Impreza WRX and is where I'll be placing them on the Legacy.

adam, did you get my pm about the sti parts for the bc. I would liked to know what parts are available. I have heard there are 800 cc injectors for the bc. please let me know. thanks, kelley.

I thought I would fill you fellow legacy lovers in on where i'm at on my project. I have posted a pic on imprezer's i-club under legacy discussion and I will be posting more. well I installed an ihi vf23 turbo and a blitz fmic (the kit is designed for a jdm wrx) so it is not a bolt on. but it now fits very good.
for power wow! for about a week i have been running the boost at only 10 psi. it hits full boost at about 2800 rpm. I have not dynoed it yet but it is deffinately faster than my z. which is 287hp and about the same weight. so my conservative guess is some where between 320 and 350.
the first night I drove it a intercooller line that was loose came undone and it made no boost. the funny thing was with no boost it still felt considerably faster than the car was stock.
just 1 hour ago I turned the boost up to 15 psi. it is so fast I ve not revved it over 4500rpm. in 2nd gear acceleration on an onramp all 4 wheels broke loose! I filled up with gas today and it got just over 18 mpg with spirited driving and still running too rich.
kelley

ok, sounds good to me, where do I buy a vf 23? and how much did you pay?


Mike

Which is better the VF 22 or the VF 23? I was going to buy the VF 34 but now I think it might be too big. I also read somewhere that serious modification needs to be done to the down pipe to get it to fit. I guess the exhaust downpipe flange tha bolts to the turbo needs to be "deeper" instead of just the flat spot that we have there now. What I mean is that the dump valve that we have on the turbo is dumping directly onto a flat piece of the flange and then mixes with the rest of the flow that is getting blown past the exhaust turbine. All this happens right at the turbo so it can be turbulent or something. From what I understand I would need a special downpipe with a seperate pipe for that wide flange (like two down pipes, one for the exaust and one for the dump. they would be joined back up down the line) Anyway. I think I want the VF22 or the VF23, but I dont know which one would be best.

So help please!

You don't need any special downpipe, although, i would swap out the stock one for a nice 2.5 or 3inch d/p. bellmouth downpipes are my favorite. then there are the twin dump (separated wastegate/ exhaust) which work well too. but yes, the turbo will bolt right on the exhaust. the vf22 will be laggy and not much fun until about 4k, from 4k to redline, it goes fast. the vf23 however spools quicker while still having good midrange and topend. i would vote for the vf23. another good turbo is the vf29, or if you want a comprimise between the vf23 and vf22, then a vf30 is good. the vf34 is just a faster spooling vf30. the vf30 is just a little smaller than the vf22 but flows more than the vf23.

Finally, A summary of the VF series Turbo. For long now I havn't known what all the numbers account for.

Thanks dude,
Mark

LegacyT, I didn't know you wanted this information . . . try this:
http://www.mrtrally.com.au/performance/
Go to the technical info and tips site . . . there's a listing of all the VF series turbos there.

how much hp do you think you can safely get with a vf23 on our engines? all the web sites are telling characteristics on wrx's.
thanks, Teague

I'm sure you'd be realizing similar results on our engines as well. The extra displacement of our cars will probably be offset by other factors (flow characteristics of heads, redline, etc).

well at about 15 psi judging by the way my car leaves a 320 hp porsche at any speed maybe 400 crank hp. this is a guess since I have not dyno'd yet. it might be less with lots more torque. it is hard to tell. full boost occures by 2800 rpm. I plan on running at least 20 maybe 23 psi with this turbo as soon as I get my fuel issues out of the way.

how fast 0-60?

Now that's pretty impressive!

Now what kinda IDCs are you logging? A/F? EGT? Are you still using the stock injectors?!?!?!

boostjunkie, I have an egt, a/f, and boost guage
I am still running the stock injectors and fuel pump. evetything runs great. too rich but that is because that is the way I set it originally and havn't changed because I don't currently have a laptop (waiting for the apple 17 in powerbook) which is fine it just doesn't get the greatest mpg.
but not bad.
hopefull this week I'll get some injectors and fuel pump and I will run around 21-23 psi and I'll dyno tune it. so hopefully soon I'll see what kind of power it is makin. I entered it in the uscc scc challenge (just to show people what a bc legacy can do and to advertise for my new business)
so I won't stop til it is makin some serious power. kelley.

wow. goddamn.

just... wow. can you toss out a full mod list? I saw your comment about Z06's in the other thread, and I'm starting to think about an upgrade ladder now that I finally have an intercooler. so far I've been using boostjunkie's list as a conceptual guide, and I'd love to have your list too so I can get a good idea of what's involved.