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-   -   vf52 swap done (http://legacygt.com/forums/showthread.php?t=193911)

jshute 09-29-2012 11:48 PM

vf52 swap done
 
Well, bear with me as I am typing this on my phone. Just had innovative tuning in buffalo ny drop in my brand new subaru VF52. With a decent already existing parts list on the mustang dyno she put down 320lbft and 308hp on 93 octane. Stock injectors with upgraded deastchworks fuel pump. The only future mods I plan on are agency power UEL headers and deastchworks injectors with upgraded Perrin side feed rails. At this point I am going with NGK 3762 copper plugs and upgrading to amsoil 5w40.

The car feels great, lacking any real "umph" in 1st, which o believe may be due to lightweight flywheel. I think 350whp should be a snap once the few little items are done as we had to dial her back due to injector duty cycle. I just wanted to share my extreme happiness with you guys. Any helpful advice appreciated. Thanks

BarManBean 09-30-2012 01:10 AM

Congrats, sounds like you have pretty much everything in order. Most would recommend sticking with stock plugs tho, but whatever.

jshute 09-30-2012 07:12 AM

I was told that the copper would have a colder spark and less chance of a missfire. But it seems to be pulling strong.

Max Capacity 09-30-2012 11:00 AM

Most recommend stock NGK's, I'm one step colder because they were $10.00 cheaper.

If you begin to have missfire or issues, put NGK's in it.

lee07 09-30-2012 12:23 PM

Nice but 308 seems a bit high too me, max is at 280 and I'm at 287 with fuel pump and injector upgrade.

Most vf52 lgt don't even break 300, You might be the first one or the dyno is just reading high

Congrats, btw where do you make peak power? Mine makes peak power at 5700

jshute 09-30-2012 12:48 PM

There have been a few more additions to this parts list.
Perrin BPV
Perrin short ram air intake
Perrin EBCS
Perrin shift knob
Deastchworks fuel pump
http://legacygt.com/forums/picture.p...pictureid=7424
http://legacygt.com/forums/picture.p...pictureid=7423

jshute 09-30-2012 01:02 PM

My bad 308lbft and 320 HP. Peak torque is at 5370, we did taper boost down at 5100 due to exceeding the IDC. All I have left is AP header, deastchworks injectors and a Retune. It should probably be mentioned that the motor although stock is brand new short block with used 2.5l wrx heads (unsure if their is a difference.) Thanks for the compliments, I leave props to innovative!

lee07 09-30-2012 02:26 PM

So was this on 100 octane or 93? If 100 then that's more believable

jshute 09-30-2012 02:48 PM

93 octane.

jshute 09-30-2012 02:58 PM

My apologies, the parts list was pre VF52 swap those two mentioned tunes on the parts list were on the VF40 that was on the car.

lee07 09-30-2012 03:04 PM

320 on pump just doesn't sound right for a vf52, on e85, Yeah

I may go e85 in the spring and will be lucky to even see 320, more like in the 310 range.

That might be a high reading dyno or I have a low reading dyno.

So how do you like the new turbo?

jshute 09-30-2012 03:18 PM

The new turbo is fantastic, the old tune was a completely different style. Previously 1/4 throttle would create WOT feel. Turns out the light throttle inputs had been Maxed out to create the feeling of "quick" while tooling around town. I picked up the car from some one who blew up the engine after a week of owning it. He bought a stock shortblock with used 2011 wrx heads. He put the engine in and had electrical issues. Found the car with the parts list in the photo for $11,000.00. I purchased the VF 52 from subaruonlineparts.com from a 2012 wrx.

The shop had never tuned a VF52 with out added injectors. So they had it on the dyno for a while and toad tuned for about 45 mins. I don't know if the change in the internals effect anything. I can only say it was on a mustang dyno, it has silver platinum plugs, castrol GTX 5w30 and a subaru oil filter.

I would like to find out how to load the car a bit to increase boost in 1st gear. It's snappy but you never really feel that significant pull in 1st like I did on the VF40. It may have just been the light throttle settings that gave me that feeling. I plan on pulling some timeslips this Friday night. So it will be interesting to see where I'm at.

jshute 09-30-2012 03:32 PM

My only comparison as of yet is from 2nd on up she pulls like an evo 8.

idiot4hire 09-30-2012 04:09 PM

Quote:

Originally Posted by jshute (Post 4094008)
The new turbo is fantastic, the old tune was a completely different style. Previously 1/4 throttle would create WOT feel. Turns out the light throttle inputs had been Maxed out to create the feeling of "quick" while tooling around town. I picked up the car from some one who blew up the engine after a week of owning it. He bought a stock shortblock with used 2011 wrx heads. He put the engine in and had electrical issues. Found the car with the parts list in the photo for $11,000.00. I purchased the VF 52 from subaruonlineparts.com from a 2012 wrx.

The shop had never tuned a VF52 with out added injectors. So they had it on the dyno for a while and toad tuned for about 45 mins. I don't know if the change in the internals effect anything. I can only say it was on a mustang dyno, it has silver platinum plugs, castrol GTX 5w30 and a subaru oil filter.

I would like to find out how to load the car a bit to increase boost in 1st gear. It's snappy but you never really feel that significant pull in 1st like I did on the VF40. It may have just been the light throttle settings that gave me that feeling. I plan on pulling some timeslips this Friday night. So it will be interesting to see where I'm at.


They tuned my lgt with a vf52 but I am not sure if they knew I had a vf52 because the previous owner put it in and I didn't know it had it until recently it was a nice mid-summer surprise

Max Capacity 09-30-2012 04:16 PM

Yes my 280whp is on all stock fueling, If I had injectors and fuel pump they sounded like they could have gotten another 20-30whp. Again this was on a mustang dyno. The car actually drives like it has more HP.

The important thing is the car drives great and I expect to be driving it for years.


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