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Old 06-12-2009, 10:36 PM   #1
Equilibrium Tuning
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Default Badass Bugeye's are Multiplying! 404whp/421ft-lbs on 91 + Meth!

This is yet ANOTHER bugeye with lots of power .

I finished tuning this one late last night and it came out very nicely. Here's the mod list:

EJ257 shortblock
Stock WRX Heads
ATP GT35R bolt-on turbo
SMC Alcohol Injection kit (M10 nozzle)
TurboXS FMIC
EQ Tuning Blow-Through MAF Pipe for TXS/SSAC FMIC
EQ Tuning Short Ram Intake for BTM Applications
Perrin equal length headers
DW 750cc injectors
APS turbo Inlet
Grimmspeed uppipe
Tial 38mm EWG
Greddy Type RS BOV
STI oilpan (and pickup)
Crucial Racing TGV deletes
Helix catless downpipe
Borla Hush catback
IXIZ Air/Oil separator
EQ Tuning Custom Tune

This tune was done on Cali 91 Octane with 50/50 Meth/Water Injection. Peak boost is at 25psi.




Its very interesting to compare this with the other bugeye I posted with the same turbo. That one made very similar peak hp on straight 91 octane at only 20psi, but that's mainly because of the cams and head work. On this car, you can see that the extra boost really helps with the torque levels and brings the hp peak in much sooner. Now we need to get the cammed car on some race gas and turn up the boost to see what it can really do

*** Standard Dyno Chart Disclaimer ***

This software reads low and should be compared to the lower reading mustang dynos. Here are some proven numbers and trap speeds for reference:

Stock WRX - 155-165whp
Stock STI - 215-225whp

265-275whp - 107-108mph traps
300-310whp - 112-113mph traps
325-335whp - 115-116mph traps
380-390whp - 120-121mph traps

*** End Disclaimer ***

Thanks
-- Ed
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Last edited by Equilibrium Tuning; 06-14-2009 at 02:03 AM.
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Old 06-12-2009, 11:44 PM   #2
rexworx
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WoW...
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Old 06-12-2009, 11:57 PM   #3
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So much inspiration to get a 2.5l into my bugeye
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Old 06-13-2009, 12:19 AM   #4
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that looks really nice for stock heads and 91 piss gas. i wanna see what this car can do with cams.
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Old 06-13-2009, 02:59 AM   #5
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wow peak power at 5k-7k. ed ftw!
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Old 06-13-2009, 03:02 AM   #6
2002Dubx
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<------Needs a 2.5 very soon!
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Old 06-13-2009, 03:44 AM   #7
domestic_abuser
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Do you think if this car had EJ255/7 heads on the car it would have made more power due to better cams?
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Old 06-13-2009, 08:12 AM   #8
Iflysti06
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Wow nice numbers on some 91 piss gas!
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Old 06-13-2009, 12:20 PM   #9
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WOW Ed you have been busy!! See you tonight!
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Old 06-13-2009, 03:59 PM   #10
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Quote:
Originally Posted by ownnij View Post
that looks really nice for stock heads and 91 piss gas. i wanna see what this car can do with cams.
Thats what Im saying. stock heads and piss gas... good fuel and a set of cams etc and hang on!!!
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Old 06-13-2009, 04:13 PM   #11
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Im not sure about the EJ255 cams I think they are about the same duration/lift. But I could be wrong.

EJ257 cams would help slightly. their duration is about the same but with a lil more lift. Id recommend aftermarket, some such as BC can be had for quite cheap, and well worth it IMO. If you can get a smokin deal for some stock EJ257 cams then go for it. Theres a thread somewhere around here with before and after plots of just stock ej257 cams on a hybrid and it picked up something like 80whp. I dont remember what kind of turbo was on it but it was GT30R or bigger.


The heads themselves pretty much flow the same. no point in the head swap

JDM EJ207 bigport heads...

Im running kelford cams with my hybrid build. 276 / 10.7mm lift intake and 272 / 10.3mm for exhaust. and a ewg dom3 for a turbo.


Hope this sort of answers your question.

If Im incorrect about the cam specs on the EJ255/EJ257 someone please correct me.

Ian,

Quote:
Originally Posted by domestic_abuser View Post
Do you think if this car had EJ255/7 heads on the car it would have made more power due to better cams?

Last edited by rexworx; 06-13-2009 at 04:20 PM.
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Old 06-13-2009, 04:31 PM   #12
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Quote:
Originally Posted by Iflysti06 View Post
Wow nice numbers on some 91 piss gas!
Quote:
Originally Posted by ownnij View Post
that looks really nice for stock heads and 91 piss gas.
It also has Meth injection so that raises the effective octane quite a bit.
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Old 06-13-2009, 06:50 PM   #13
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^^^ true but its still piss gass
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Old 06-14-2009, 08:32 AM   #14
ownnij
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+1 its still piss gas 91 oct lol only if i we had some Sunoco stations with 94 octane here..
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Old 06-14-2009, 09:46 AM   #15
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i'm certainly impressed , nice work.
i have an extra, blown 2.0 with heads. i am on the fence tween buying a built 2.5 street block from rallispec for 2700$ or rebuildin the 2.0 stroked/bored over. the 2.5 will build more torque but the 2.2 revs higher. the way i see it with the 2.2 is , with launch control i'm building plenty of torque off the line anyway...10psi @5k rpms. but then i get 8500rpms on top over the 2.5. then of course METH.
either way i want to do massive headwork to the stock wrx heads before touching the bottom end. from what i hear the head work and cams and such are gonna set me back at least 2 grand. lookin like 5k on a built motor then the trans...still cheaper than a new car...i love my bugeye anyway.
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Old 06-14-2009, 10:01 AM   #16
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Quote:
Originally Posted by rexworx View Post
Im not sure about the EJ255 cams I think they are about the same duration/lift. But I could be wrong.

EJ257 cams would help slightly. their duration is about the same but with a lil more lift. Id recommend aftermarket, some such as BC can be had for quite cheap, and well worth it IMO. If you can get a smokin deal for some stock EJ257 cams then go for it. Theres a thread somewhere around here with before and after plots of just stock ej257 cams on a hybrid and it picked up something like 80whp. I dont remember what kind of turbo was on it but it was GT30R or bigger.


The heads themselves pretty much flow the same. no point in the head swap

JDM EJ207 bigport heads...

Im running kelford cams with my hybrid build. 276 / 10.7mm lift intake and 272 / 10.3mm for exhaust. and a ewg dom3 for a turbo.


Hope this sort of answers your question.

If Im incorrect about the cam specs on the EJ255/EJ257 someone please correct me.

Ian,
INCORRECT EJ255 and EJ257 Cams are exactly the same , EJ255 and EJ257 heads are different .
EJ255 heads will increase your compression vs using EJ257 heads with the same pistons.
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Old 06-14-2009, 10:41 AM   #17
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Quote:
Originally Posted by juanmedina View Post
INCORRECT EJ255 and EJ257 Cams are exactly the same , EJ255 and EJ257 heads are different .
EJ255 heads will increase your compression vs using EJ257 heads with the same pistons.
Juan, you're wrong. STi cams have more lift - research.

STi heads AND pistons are both different than the EJ255.
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Old 06-14-2009, 11:22 AM   #18
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Quote:
Originally Posted by zeropsi View Post
Juan, you're wrong. STi cams have more lift - research.

STi heads AND pistons are both different than the EJ255.
That is a misconception, you are wrong lol

There is a recent thread by MP were he measured EJ255 and EJ257 cams and they are exactly the same. Search the 2.5L section, I would do it for you but I am posting from my BB
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Old 06-14-2009, 11:32 AM   #19
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I'm not going to argue about who knows motors better.
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Old 06-14-2009, 02:21 PM   #20
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Quote:
Originally Posted by zeropsi View Post
I'm not going to argue about who knows motors better.

I agree 100% I know motors better

Quote:
Originally Posted by Maxwell Power View Post
Cliff Notes: There are none.

I frequently get customers emailing and calling asking for EJ257 cams for their 06+ WRX or LGT. They are under the impression that they are larger in some regard. Some say "more lift" some say "more duration".

It just simply isn't true. I have a 'box o cams' that is filled with EJ255 and EJ257. I spent a couple hours yesterday profiling all these cams and this is what I got.

I profiled 4 sets of cams.
06 and 07 STi (EJ257 cams)
06 and 07 WRX (EJ255 cams)

all of them were 9.6mm lift intake and 9.8mm lift exhaust.
duration is a little more difficult to get exact because the degree's can go by quick on the wheel. However, it was the same for all four sets at right about 204/208. The cams are all VERY precisely ground. They all had the same base circle to within' 0.1mm. I find this interesting because it means that the differences in valve lash are solely the fault of the head assembly (casting, valve seat installation) and valve stem differences.

So, gentlemen (and the occasional lady), the only cam differences would be the JDM cams to the USDM cams and the EJ205 vs the EJ257.

thanks for reading,
Dominic Acia
Maxwell Power
www.getadomtune.com
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Old 06-14-2009, 04:16 PM   #21
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I still believe in what I said. Oh well.
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Old 06-15-2009, 07:57 AM   #22
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to quote sponaugle about facts regarding the 257 oem cams...

keep in mind when he's referring to stock wrx that the post was made in 2003
Quote:
Originally Posted by sponaugle View Post
From the service manuals, I found the following. NOTE THAT THESE VALUES ARE PROBABLY NOT WITH .050" LIFT, BUT JUST CAM CONTACT.

Stock WRX
Intake opens at 10 deg BTDC, closes at 50 deg ABDC. That equals 240 degrees total time.
Exhaust opens at 53 deg BBDC, closes at 7 deg ATDC. That equals 240 degrees total time.

US STI:
(AVCS Max)Intake opens at 15 deg BTDC, closes at 45 ABDC. That equals 240 degrees total time.
(AVCS Min)Intake opens at 5 deg ATDC, closes at 65 ABDC. That equals 240 degrees total time.
Exhaust opens at 55 deg BBDC, closes at 5 deg ATDC. That equals 240 degrees total time.

From this, you can derive that on the 2.5L STI, the CAM advance is variable by only 20 degrees. The JDM STI varies by as much as 30, while the STI RA only does up to about 15.

To convert this info to other quotes, you need to measure when the lift exceeds .050", and then start counting degrees. Either way, according the the manual the US WRX and US STI have the same duration cams.

Cobb tuning claims that the stock WRX cams are 206-208 degrees, when measured for .050" of lift.

I will try to confirm these numerbers myself with a few measurements.
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Old 06-15-2009, 08:47 AM   #23
ownnij
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hmmm dont really care about sti cams but this cars powerband kicks ass. i would just like to see it with some headwork.

do you think the atp gt35r can put down what the rotated kits can? as far as 500whp on pump? lol probably not.
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Old 06-15-2009, 01:26 PM   #24
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In the middle of a hybrid swap 272 cams P&Ped and when i step back to look at the car i think what the hell am i getting into but looking at this graph makes me feel all warm and fuzy. lol Thanks Man your my 91 pump hero!
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Old 06-15-2009, 02:57 PM   #25
Equilibrium Tuning
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Quote:
Originally Posted by ownnij View Post
hmmm dont really care about sti cams but this cars powerband kicks ass. i would just like to see it with some headwork.

do you think the atp gt35r can put down what the rotated kits can? as far as 500whp on pump? lol probably not.
Rotated kits don't put down 500whp on pump gas... at least not on our pump gas and our dyno's . The most I've seen out of a rotated 35R on pure 91 Octane was about 370whp... granted that was on a bone stock STI engine/heads.

-- Ed
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