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Old 02-18-2009, 07:30 PM   #1
theguy
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2006 WRB STi
www.CAMtuning.com

Default 2002 WRX VF39 w/E85 328whp 372wtq

Thanks to Cameron(06rexwagon) for tuning the car. It feels great. The car would probably spool faster with a topmount but I can live with it. We had trouble getting the car to boost more than 21 psi. Stock 5 speed, stock clutch, and yes I am aware of the problems that may arise.
www.camtuning.com

mods list:
VF39
modded stock injectors flowing 820-830cc
Hallman MBC
walbro 255
SPT intake
Greddy FMIC
catless uppipe
catless turboback
flashed ecu

e85


vf39- 288whp 280wtq


vf39+meth- 308whp 324wtq


all runs on the same dynojet. e85 tune was done with FMIC. other tunes had an ebay TMIC, XO2 racing i think.
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Old 02-18-2009, 08:34 PM   #2
TDagen
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FNF LSX Swap,E85 and more

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E85 lol its good stuff It always has an impressive torque increase...
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Old 02-18-2009, 08:45 PM   #3
juanmedina
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WRX VF39+E85 12.0, 121mph

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I can't wait, new clutch and sensor for me maybe Tuesday
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Old 02-18-2009, 08:59 PM   #4
Swine
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What issues? What are your IDC's?
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Old 02-18-2009, 09:33 PM   #5
Boost_Creepin
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Sweet Numbers
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Old 02-18-2009, 11:40 PM   #6
blkscooby
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What BPV are you using?
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Old 02-19-2009, 11:33 AM   #7
JoeTX
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Insane TQ for a 2.0 with so few mods. E85 FTW!
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Old 02-19-2009, 03:19 PM   #8
thefoos
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7064 TS WRB

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This is awesome. I love E85. I'm getting ready to put a VF39 on my WRX as well. I'd be curious what the timing map looks like. Cam, willing to share a tidbit of info?
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Old 02-19-2009, 04:04 PM   #9
theguy
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www.CAMtuning.com

Default

Quote:
Originally Posted by Swine View Post
What issues? What are your IDC's?
i don't know what they are but i asked cameron about another car with almost the exact same setup and he said it wasn't going to be an issue. i would pm 06rexwagon and ask if you want a specific #

Quote:
Originally Posted by blkscooby View Post
What BPV are you using?
no bpv, it is an hks ssq bov. i need to do some modification to make a bpv work with this setup
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Old 02-19-2009, 04:27 PM   #10
rico_q808
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bLuE

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holy crap, great #'s. I wish we had some E85 in hawaii.
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Old 02-20-2009, 03:46 PM   #11
Dutchman1101
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Great numbers! What altitude are you at?

I'll be doing E85 with my small 16g here pretty soon.
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Old 02-20-2009, 06:03 PM   #12
theguy
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www.CAMtuning.com

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Quote:
Originally Posted by Dutchman1101 View Post
Great numbers! What altitude are you at?

I'll be doing E85 with my small 16g here pretty soon.
the dyno is around 6000 ft, thanks
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Old 02-20-2009, 06:57 PM   #13
JSarv
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12.07@115.9mph-EJ205

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what sae correction was used?

-Jerod

If that is a 39 why are you not seeing full boost before 4k rpms??? Even with a front mount...
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Old 02-20-2009, 07:15 PM   #14
theguy
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www.CAMtuning.com

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Quote:
Originally Posted by JSarv View Post
what sae correction was used?

-Jerod

If that is a 39 why are you not seeing full boost before 4k rpms??? Even with a front mount...
correction is 5, i hit full boost at 3600 in 4th but it is still a little later than with a top mount. at 6000ft the sae correction is more than it should be, but it is a good measure of the gains from the previous tunes. i will get a 1/4mile time and trap speed as soon as the track opens up around here
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Old 02-20-2009, 07:22 PM   #15
SlverEJ20
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PSM

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Nice numbers man I wish where I live had more e85 pumps
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Old 02-20-2009, 10:17 PM   #16
JSarv
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l33t *******
12.07@115.9mph-EJ205

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I didn't really look at the comparo, thats definitely right on for E85 -gain wise.

I just don't believe in SAE because it basically just lies. A trap speed 1/4 time would be awesome.

I'm sure it pulls hard, but I can't believe you don't see boost till 3400 in 4th I mean given the altitude and fmic, you should still see it by 3400 in 3rd and sooner in 4th...

I want to say at sea level on a top mount a 39 should see a full 20psi by 2800 in 3rd gear..

Jerod
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Old 02-21-2009, 12:10 AM   #17
theguy
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www.CAMtuning.com

Default

i hear where you are coming from, i don't know what to tell you about the boost but i just tried out 3rd and it was at full boost at 4000. all i know is that it is awesome and i love the way that car feels. maybe the turbo is losing some air somewhere...
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Old 02-21-2009, 12:40 AM   #18
TDagen
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FNF LSX Swap,E85 and more

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probably a boost leak.... IMO easy fix one beer lol
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Old 02-24-2009, 05:44 AM   #19
1gcrazy
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Wastegate coming open a little early?? Wastegate spring and a retune?
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Old 02-24-2009, 03:34 PM   #20
theguy
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Default

i know the distinct sound of the wastegate opening up and i actually jump up to about 24lbs in 4th whereas i can't get above 21lbs in 1st-3rd. the wastegate doesn't make any noise until 4th but maybe it isnt closing all the way in the earlier gears... im not experienced enough to really have a good idea though.

if it were a boost leak would it still jump up higher in 4th than 1st-3rd?
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Old 02-24-2009, 04:46 PM   #21
Steve.804
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Rotated 35R Jorge Tuned

Default

Great looking tune. Looks like it hits hard. What spring are you using with your Hallman?

That's kind of strange you cant hit full boost in 3rd but can in 4th. Using the MBC you're bypassing the factory solenoid so the turbo should be taking its natural curve until it opens up and lets the wastegate do its job reguardless of the gear. The only thing I can think of is a pre-turbo leak where it's less evident in a higher gear (higher load) than in lower gears.

Quote:
Originally Posted by JSarv View Post
what sae correction was used?

-Jerod

If that is a 39 why are you not seeing full boost before 4k rpms??? Even with a front mount...
If he does have a slight leak then it might turn the boost on a little sooner but I think the graph looks pretty good. Notice he hits the more typical 2.0 vf39 280ish awtq at around 3800rpms. I think what makes this graph look a bit laggy is the fact it excells all the way to 372awtq. This is certainly not the norm. Also most people are tuned 19-20psi while he's pushing 24psi.
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Old 02-24-2009, 05:06 PM   #22
theguy
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Quote:
Originally Posted by Steve.804 View Post
Great looking tune. Looks like it hits hard. What spring are you using with your Hallman?

That's kind of strange you cant hit full boost in 3rd but can in 4th. Using the MBC you're bypassing the factory solenoid so the turbo should be taking its natural curve until it opens up and lets the wastegate do its job reguardless of the gear. The only thing I can think of is a pre-turbo leak where it's less evident in a higher gear (higher load) than in lower gears.



If he does have a slight leak then it might turn the boost on a little sooner but I think the graph looks pretty good. Notice he hits the more typical 2.0 vf39 280ish awtq at around 3800rpms. I think what makes this graph look a bit laggy is the fact it excells all the way to 372awtq. This is certainly not the norm. Also most people are tuned 19-20psi while he's pushing 24psi.
i bought the mbc off a local guy so i assume it is using whatever spring it comes with originally. the car feels amazing and im really happy it is just a little wierd the way 4th hits 24psi.

remember the dyno was done in 3rd and i am barely getting to 21psi, if that... we were trying everything to get more than 21psi and finally did but it took a screw driver to help keep the wastegate closed to get 25psi. it was just to see if that would help and it did but i cant drive around with a screw driver jammed against the wastegate arm on that pull the car hit 345whp before blowing the intercooler piping off the turbo(bad clamp) at 4500 rpm so i guess the way to fix it would be EWG, does that sound like a solution?

Last edited by theguy; 02-24-2009 at 05:17 PM.
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Old 02-24-2009, 05:44 PM   #23
06rexwagon
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9.8@150

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Quote:
Originally Posted by JSarv View Post
I didn't really look at the comparo, thats definitely right on for E85 -gain wise.

I just don't believe in SAE because it basically just lies. A trap speed 1/4 time would be awesome.

I'm sure it pulls hard, but I can't believe you don't see boost till 3400 in 4th I mean given the altitude and fmic, you should still see it by 3400 in 3rd and sooner in 4th...

I want to say at sea level on a top mount a 39 should see a full 20psi by 2800 in 3rd gear..

Jerod
dynojets don't load the car well. Almost every car I've tuned on that dyno hits 500rpm later than it does on the street, and I've probably tuned 150 cars on that dyno. That coupled with a fmic leads to slow spool. STi's don't hit full boost on a vf39 here until 3400. The car also had a blown up pipe gasket that we swapped for a spare, but used gasket we had laying around. It's not impossible that there's still a pre turbo exhaust leak.
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Old 02-24-2009, 05:46 PM   #24
06rexwagon
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Quote:
Originally Posted by thefoos View Post
This is awesome. I love E85. I'm getting ready to put a VF39 on my WRX as well. I'd be curious what the timing map looks like. Cam, willing to share a tidbit of info?
I'll share. Not sure if this is the final one or not but it's not far from it.


I guess you can't see it too well on the forums.

Last edited by 06rexwagon; 02-24-2009 at 06:01 PM.
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Old 02-24-2009, 06:58 PM   #25
Steve.804
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Rotated 35R Jorge Tuned

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Quote:
remember the dyno was done in 3rd and i am barely getting to 21psi, if that... we were trying everything to get more than 21psi and finally did but it took a screw driver to help keep the wastegate closed to get 25psi. it was just to see if that would help and it did but i cant drive around with a screw driver jammed against the wastegate arm on that pull the car hit 345whp before blowing the intercooler piping off the turbo(bad clamp) at 4500 rpm so i guess the way to fix it would be EWG, does that sound like a solution?
Ok so the wastegate can't stay shut. Certainly an EWG will fix that issue or you can use a helper spring. Be sure to keep an eye on your boost guage and make sure you dont over boost in the midrange. 06rexwagon might have to make some tweaks if you see a vast improvment in spool and boost.

helper spring
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