How to build it up?

evolutionmovement · Post by **evolutionmovement** » Wed Feb 04, 2004 5:35 am

Skid pad numbers are fine, but I find they bear little relevance to real world handling capability. The turbo Legacy will destroy any of those car in foul weather, too.

Steve

BAC5.2 · Post by **BAC5.2** » Wed Feb 04, 2004 6:32 am

evolutionmovement wrote:Skid pad numbers are fine, but I find they bear little relevance to real world handling capability. The turbo Legacy will destroy any of those car in foul weather, too.

Steve

True.

The only real info a skid pad gives would be who can drive around a circle the fastest.

The beauty of All Wheel Drive

I should get a sticker that says that on my rear window.

scottzg · Post by **scottzg** » Wed Feb 04, 2004 7:12 am

swaybars do sooo much. a stock 2.5rs does a .82g's on a skidpad. a wrx has softer suspension and narrower rims (but the same width tires). it pulls a .87g.

Assuming the rs doesn't have a lead roof, the only difference is the swaybars. the rear bar on a rs is 13mm, the wrx its 20mm.

The rs has much more oversteer, making it easier for "joe idiot" to save his ass after he entered that turn too hot. A la honda.

rsstiboy · Post by **rsstiboy** » Wed Feb 04, 2004 10:59 am

kelley wrote:here's what my current set up is.
ej22t
ihi vf23
stromung turbo back
hks headers, blitz fmic,
and an autronic ecu. at 15 psi it makes around 400 crank hp.
I would recomend at least 550 cc injectors.
i hit full boost by 2500 rpm. hope thathelps you some.

sounds like a really nice setup! how do you find the VF23 on a 2.2? i would have thought it would be a tad too small for that? upgrade to a TD05 it flows about the same as a VF22(5cfm difference between the 2) it will give you some more top end and responds to high boost and highflowing better than IHI turbos, how much HP is that at the wheels?

Dizzy · Post by **Dizzy** » Wed Feb 04, 2004 3:24 pm

Actually, I think that a VF23 would be a pretty good match for the 2.2t at 15psi. Like you mentioned, high end would drop off compared to a larger turbo. However, it would be awesome for a daily driver.

eastbaysubaru · Post by **eastbaysubaru** » Wed Feb 04, 2004 5:02 pm

Is the VF23 a roller bearing turbo?

-Brian

kelley · Post by **kelley** » Wed Feb 04, 2004 8:14 pm

yes the vf 23 is ball bearing.
it works very nicely with the ej22t.
the way I have things set up i my redline is 6500 rpm with full boost at around 2500 rpm. I would have no problem running 20 psi with this set up as long as I had the injectors.
but I am building this other motor so I have not done much with this for a while.

ciper · Post by **ciper** » Wed Feb 04, 2004 8:33 pm

Wouldnt 20PSI on a VF23 be way outside its range at high RPMs?

boostjunkie · Post by **boostjunkie** » Wed Feb 04, 2004 8:43 pm

I think you might be right, Ciper.

Alot of the wrx (2.0L engine) guys haven't had success with the vf-series (even the vf-22) at high (~20psi) boost levels. Any that did, made short work of the turbo . . . within months.

BAC5.2 · Post by **BAC5.2** » Thu Feb 05, 2004 12:13 am

Boostjunkie - I know you want to help me do all this work

. I want someone who know's what they are doing to give me a hand. I pick the car up this weekend! I'm so excited! 1 day of classes left until I get my car!

How hard was the TD05 swap?

kelley · Post by **kelley** » Thu Feb 05, 2004 12:23 am

I disagree that 20 psi on an ej22t is out of the vf23's efficiency range. I have ran mine to 19-20 psi with very good results

this was due to a boost spike problem I was haveing with my greedy profec ebc. other than my dutycycle being at 100% by 12-13 psi no problems including no knock or detination. I wouldn't recomend doing this without proper fuel.

rsstiboy · Post by **rsstiboy** » Thu Feb 05, 2004 12:08 pm

boostjunkie wrote:Alot of the wrx (2.0L engine) guys haven't had success with the vf-series (even the vf-22) at high (~20psi) boost levels. Any that did, made short work of the turbo . . . within months.

i have to disagree, maybe their setup was poor, but there are plenty of guys running around 20psi on this turbo without problems, but in saying that the VF22 isn't as reliable at high boost as the mighty TD05!!

ciper · Post by **ciper** » Sat Feb 07, 2004 12:48 am

Information on it is easy to find, why dont we just calculate it and get this over with?

kelley · Post by **kelley** » Sat Feb 07, 2004 2:01 am

yeah if you need to push more than 20 psi there is always the t-88

that would be efficient at high boost. might be alittle laggy on aur motors though.

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How to build it up?