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Subaru / SPT Mods

29 messages,  Last post on Dec 13, 2005 at 2:13 PM

You are in the Speed Shop Tuning and Modification Forum.

What is this discussion about? Subaru, Performance Mods, Coupe, Hatchback, Sedan, Wagon

Messages Page 2 of 3

#10 of 29 Re: Vishnu Chip [buddhabman] by Mr_Shiftright HOST

Mar 31, 2005 (8:57 pm)

Replying to: buddhabman (Mar 31, 2005 1:53 pm)
 A cat-back exhaust, which you will need on a street car, is only good for 3-4 HP as a rule, so that's not much for what you spend. I bet a cannister type air filtration system (ram-effect) would help. I've heard there are some slick ones coming out of Europe that might get you 7-8HP at high rpm.
 
  

#11 of 29 I wonder if Vishnu stays by krzyss

Apr 01, 2005 (5:16 am)

"highly regarded" after Car&Driver write up about their long term Evo.
Apparently after the "upgrade" car became very trouble prone.
 
Krzys
 
PS http://www.caranddriver.com/article.asp?section_id=17&article_id=9270&page_number=4
 
PS2 It could be true about any tuner not just Vishnu.

#12 of 29 that's some "chip" by Mr_Shiftright HOST

Apr 01, 2005 (10:00 am)

Well this is what happens with mods...you need to shake the bugs out, sometimes over and over again. I thought it was interesting that to gain 82 HP they had to install a new exhaust system, a new turbocharger housing, new camshafts and cam gears, and a remapped engine computer. This is a far cry from just a "chip" for 50 HP.
 
We have an EVO out here in the Bay Area that is apparently putting out about 800HP with a stroker kit and all kinds of other radical works. Problem is, the car has no armor shielding and nobody is willing to dyno it---too risky for personnel and liability to the car.
 
Sounds like their EVO was running too lean, a common mistake when creating more boost from TC or SC.

#13 of 29 Re: Vishnu Chip [buddhabman] by erickson00

Apr 06, 2005 (11:08 am)

Replying to: buddhabman (Mar 31, 2005 1:53 pm)
I want that...
 
But $750 for them to perform a few minutes of work on the ECU seems excessive...
 
If I could get it for $300 - $500 I would seriously consider it.
 
What happens to my factory warranty if I get the ECU reflashed?

#14 of 29 warranty by Mr_Shiftright HOST

Apr 06, 2005 (12:25 pm)

I think it's toast. Apparently some dealers now have equipment that can tell as soon as they hook up.

#15 of 29 more Subbie mods by steve_ HOST

Apr 06, 2005 (12:46 pm)

There's some more discussion about various Subbie mods over in Subaru Crew - Modifications II.
 
Steve, Host

#16 of 29 Anyone has used the VISHNU 50hp ECU refresh for Legacy???? by fzanetti

May 17, 2005 (7:47 am)

I was just curious...
 
Was just curious if anyone got his/her 2.5GT a Vishnu ECU refresh?
 
How was the feeling? Incredible difference?
 
I have drive the WRX with Vishnu ECU refresh Stage Subzero - 265hp, and the punch increase is very noticeable....(talking manual transm here btw).
 
Also, does anyone here know how fas the sportshift transmission changes gears???? Both in the S mode and changing gear manually.....
 
Any advise is very welcome...
 
Thanks in advance guys,
 
Cheers,
 
Flavio Zanetti
Boston - MA

#17 of 29 Vishnu by focusd

May 17, 2005 (2:52 pm)

Vishnu all the way, call them and see what they offer. I know fellow Evo owners love that shop and same goes for STI guys.
 
www.evovssti.com

#18 of 29 Ecutek Reflash by soupboy

Jul 21, 2005 (10:28 am)

is the way to go. I had my WRX done at www.grdperformance.com in addition to full, catless race exhaust. I wound up at 215-220 whp&wtq vs. 165-170 bone stock. The difference is amazing particularly with spool up and powerband width.
 
Vishnu does the same thing that most Ecutek reseller/installers do. They access your ECU the same way your Subaru tech dept would if you brought it in for repairs - via the OBDII port. Unlikes "chips" or "piggybacks" that require cutting or splicing of OE wiring harnesses there is no physical evidence of a reflashing...nor can they prove it.
 
40-50whp and 50-60wtq are common improvement ranges on the current iteration reflashes for the Legacy GT. AWD dyno time plus a new DP might add another 10-15whp/wtq and a new UP maybe 5-10whp/wtq.
 
$750 is a BARGAIN for 20%+ power improvements - there is no other bolt-on that can replicate it for the price/value/reliability/warranty issues. You could waste $1-1.5K on a TBE exhaust only to get a loud, smelly car with nominal 10whp/wtq gains.
 
As for competition Volvo makes a Type R V70 at 300hp, BMW's 540iT was about 290hp and the S6 Avant was 340hp.
 
You could have a sleeper Legacy GT that is faster, more powerful and more reliable than any of the above for <50% of the cost of any of the above.

#19 of 29 I would not use by krzyss

Jul 21, 2005 (12:22 pm)

"faster, more powerful and more reliable" to describe car that had its ECU modified.
Did you read the nightmare Car&Driver had with their Vishnu modified Evo?
 
Krzys

Messages Page 2 of 3

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