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Old 09-19-2007, 01:03 PM   #1
Equilibrium Tuning
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Default GT35R 05 STI + C10 = 503whp on stock block!

I tuned this 35R car last night and I'm continually impressed with what can be done on the stock block. This car has a custom 35r kit built by the owner with some input from me.

The car has a GT35r with custom open dump wastegate, custom catless downpipe, nur-spec catback, Perrin blow-through pipe adapted to fit custom fmic piping, custom dual walbro setup, PE850cc injectors, and EQ Tuning custom tune using a Cobb AP.

Here's the graph after 3+ hours of tuning on 110 Octane:


This is the highest hp car that has been measured by the road dyno to date and needless to say it was FAST. The previous record holder was an FP Red at 30psi that did 450whp. This car was tuned at 27psi peak with conservative a/f and timing. Remember this is the stock block and the owner of this car actually wants it to last some time . We also ended up completely maxxing out the PE850's at this boost level so we really had no choice but to stop at this level. Either way, this is plenty of power for the stock block and should trap in the mid 130's. This turbo obviously wants to boost 30psi+ and it would be great if we could rev it out to 8k RPM, but we'll leave that for the built block and upgraded fuel system later down the road . As it is, this setup is a too laggy and the powerband is too narrow for my personal tastes, but in a straight line its an absolute monster. If we can rev to 8k+ this could be some very usable power on a road course as well.

Thanks
-- Ed
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Old 09-19-2007, 01:09 PM   #2
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Wow.. i guess all that custom work that was done was done right!!

130+mph stock block sti.. ill take that. Nice work Mr. Ed.. is it scary tuning these cars or what? There cant be much room for error at 27psi and 500whp
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Old 09-19-2007, 01:13 PM   #3
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Quote:
Originally Posted by PaulRex View Post
Wow.. i guess all that custom work that was done was done right!!

130+mph stock block sti.. ill take that. Nice work Mr. Ed.. is it scary tuning these cars or what? There cant be much room for error at 27psi and 500whp
Its definitely a bit nerve racking... especially at first. Its funny how comfortable I can get in the passenger seat of a 500whp car after about 3 hours though

-- Ed
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Old 09-19-2007, 01:21 PM   #4
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Nice.... I am suprised you didn't max out the maf. I usually see the perrin boost tube max out the maf around 460hp on my dyno.
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Old 09-19-2007, 01:35 PM   #5
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very nice
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Old 09-19-2007, 01:38 PM   #6
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Quote:
Originally Posted by Vaus View Post
should trap in the mid 130's.
yea....don't know about that. Mid 120's yes. Mid 130's no.
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Old 09-19-2007, 01:43 PM   #7
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Nice tune. What was the hotside of the turbo (63/82/106)?

Nick
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Old 09-19-2007, 01:54 PM   #8
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Quote:
Originally Posted by SloRice View Post
yea....don't know about that. Mid 120's yes. Mid 130's no.
I'm guessing ed is basing his statement on the fact that sean is trapping 115mph with 330hp.
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Old 09-19-2007, 01:56 PM   #9
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Quote:
Originally Posted by TopSpeed View Post
Nice.... I am suprised you didn't max out the maf. I usually see the perrin boost tube max out the maf around 460hp on my dyno.
I was actually impressed that it didn't max out as well. It was positioned differently than in the Perrin kit, so that might make some difference. MAF V was hitting around 4.7v so we still have some head room with this housing. This pipe is designed fairly well in terms of power capability, although it could use some work to smooth out the flow across the MAF. I think the length of the pipe and the depth at which the sensor is mounted has a lot to do with why this particular pipe could handle this flow. Remember we maxed out the PE850's at around 12:1 a/f. That should could give you a good idea of the air flow involved.

Thanks
-- Ed
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Old 09-19-2007, 02:00 PM   #10
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Quote:
Originally Posted by SloRice View Post
yea....don't know about that. Mid 120's yes. Mid 130's no.
Whatever makes you feel better

A couple reference points on this measuring tool...

270-275whp = 107-108mph
300-305whp = 110-112mph
330-335whp = 115-116mph
380-385whp = 120-121mph

Based on that I would say this car has a good shot at 130mph+ traps. Granted this is just an estimate, so I'm not making any actual claims here .

Thanks
-- Ed
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Old 09-19-2007, 02:01 PM   #11
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Quote:
Originally Posted by White out View Post
Nice tune. What was the hotside of the turbo (63/82/106)?

Nick
I believe it was a .82 hot side but I'll have to double check on that.

-- Ed
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Old 09-19-2007, 03:09 PM   #12
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Nice set-up !!!!



<---------------------- +1 Stock Internals !!! FTW!!!

Time to take it down the 1/4 mile and lets see them 10second pass!!!
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Old 09-19-2007, 03:54 PM   #13
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Not hating here. It looks like a solid tune for a 35R. Props there.

I'm just saying, most 35R'd STI's with setups like this will trap mid-120's. The gearing just isn't getting it done.
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Old 09-19-2007, 04:20 PM   #14
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nice build..
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Old 09-19-2007, 04:23 PM   #15
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ED. whos car is it?
you should ask the owner if he can let me or you drive down the 1/4 mile track hahahaha

damn i wish i drive a fast car like that
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Old 09-19-2007, 04:27 PM   #16
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Quote:
Originally Posted by Phatron View Post
I'm guessing ed is basing his statement on the fact that sean is trapping 115mph with 330hp.
theres 3 other people with 330whp on EDs software dyno
have trap 115- 116 mph
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Old 09-19-2007, 05:05 PM   #17
Equilibrium Tuning
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Quote:
Originally Posted by SloRice View Post
Not hating here. It looks like a solid tune for a 35R. Props there.

I'm just saying, most 35R'd STI's with setups like this will trap mid-120's. The gearing just isn't getting it done.
Let me clarify then... I think it will hit 130's with a good driver who can shift like a mad man

Thanks
-- Ed
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Old 09-19-2007, 05:05 PM   #18
Equilibrium Tuning
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Quote:
Originally Posted by downsti View Post
ED. whos car is it?
you should ask the owner if he can let me or you drive down the 1/4 mile track hahahaha

damn i wish i drive a fast car like that
Haha... we might just be able to arrange that.
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Old 09-19-2007, 06:04 PM   #19
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Well good then, I hope it does see some track times....he could go for the highest stock-block traps speeds!!
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Old 09-20-2007, 12:04 AM   #20
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^^^

That's 10.3 @ 137. hehe

<--- Stock block in the mid 120's with a SZ55 lol

Based on this reference points from his dyno software...

270-275whp = 107-108mph
300-305whp = 110-112mph
330-335whp = 115-116mph
380-385whp = 120-121mph

I would extrapolate this...

445-450WHP = 126-127mph
500-505WHP = 130-131mph


All it need to be done is actually do it, to see if I came close!
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Old 09-20-2007, 02:08 AM   #21
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Quote:
Originally Posted by Speed View Post

I would extrapolate this...

445-450WHP = 126-127mph
500-505WHP = 130-131mph


All it need to be done is actually do it, to see if I came close!
and a badass driver
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Old 09-20-2007, 08:14 AM   #22
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Not having been in car but by the dyno plot, I really wouldn't say that the 35R is too laggy. You get 300WTQ and 300WHP by 4000 RPM or just over. Thats comparable torque performance and much better HP performance than a Stg2 tune. Yes, the turbo isn't fully spooled yet but who cares about what boost at what RPM? Its all about WTQ and WHP at a given RPM. In that department you are doing just fine
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Old 09-20-2007, 09:38 AM   #23
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That's what I try to tell people all the time. The 35R is making the same if not more power than a Stage 2 car by 4000RPM. And realistically, when you are driving around, how many people are shifting at 3500RPM?? I'm not...I'm shifting at 4k-4.5k when just cruising. So it's enough to get a few psi of boost and the car really does move along nicely.
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Old 09-20-2007, 10:13 AM   #24
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Damn Ed we need to get my C16 tune done! I'm getting a bit jealous now! LOL
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Old 09-20-2007, 10:51 AM   #25
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That's the real nice thing about the 2.5 block imo, and why high HP STIs are very plausible DD's. Enough grunt to get around, accelerate in traffic and lane change without the need for boost.


Quote:
Originally Posted by SloRice View Post
That's what I try to tell people all the time. The 35R is making the same if not more power than a Stage 2 car by 4000RPM. And realistically, when you are driving around, how many people are shifting at 3500RPM?? I'm not...I'm shifting at 4k-4.5k when just cruising. So it's enough to get a few psi of boost and the car really does move along nicely.
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