vf39 tuned at turboxs

[fastlanerex]

car has 90k miles

298.5 WTQ 313WHP

21.5 psi full boost at 3800 rpm

mod list

ss autochrome fmic
utec
turboxs shorty intake
samco turbo inlet tube
ported polished exhsust manifold
grimmspeed highflow crosspipe
hks bov
vf39

walbro fuel pump
565 pinks
iag ewg uppipe with tial 38mm v-band
invidia turboback

* Registered users of the site do not see these ads.

[boostdog]

i'd say that's some nice power! esp on a 2.0 good job. now hit the strip and see what it does.

[scramjett]

What's your take on "lag" with your setup? You've got a VF39 + FMIC, which the experts say will be a real laggy car. I'm in the middle of doing a VF swap + FMIC in my 08 and people are telling me it will be too laggy. I guess I'll find out soon enough when I finish my install. . . .

[emsmap]

I have almost the same setup as you OP. Jermaine tuned my car about a 1 and a half ago. I achieved 297whp at 19 psi on my 2002 wrx. I since then have raised the boost to 21 and it feels like a freight train all the way to redline. Yes there is more lag with my FMIC and vf39 but I actually like the lag lol. My mod list is:

IHI VF39 Turbocharger
CSS Front Mount Intercooler
Walbro 255lph Fuel Pump
Modded Stock Injectors (Flow Tested 1000cc)
Forge BOV/BPV
UTEC Engine Management Piggyback ECU
Group N Motor Mounts
ABC Boost Control Solenoid
TurboXS Catless Uppipe
HKS Catless Downpipe
Blitz Nur Spec R Exhaust
Spt Intake
Samco Radiator Hoses and Auxillary hoses
TurboXS Tuner Wideband Controller
Oil Catchcan
Protune by Jermaine at TurboXS

[Paul]

Originally Posted by scramjett

What's your take on "lag" with your setup? You've got a VF39 + FMIC, which the experts say will be a real laggy car. I'm in the middle of doing a VF swap + FMIC in my 08 and people are telling me it will be too laggy. I guess I'll find out soon enough when I finish my install. . . .

You shouldnt be asking the OP since he has a 2.0 and you have a 2.5. With Your motor a vf39 will NOT be laggy......stop listening to those "experts"

[srt2stiguy05]

Originally Posted by Paul

You shouldnt be asking the OP since he has a 2.0 and you have a 2.5. With Your motor a vf39 will NOT be laggy......stop listening to those "experts"

Well I agree with the OP cause responsiveness is now LESS (3800 RPM) Instead of (3200-3400)


I think either go TMIC (STi or aftermarket) or Bigger Turbo and a better tune with OUT UTEC like Open Sourced and you will see better #'s and faster Response

[GDB FAN]

Originally Posted by Paul

You shouldnt be asking the OP since he has a 2.0 and you have a 2.5. With Your motor a vf39 will NOT be laggy......stop listening to those "experts"

+123456789
It may feel "laggy" because the exhaust housing/wheel was increased. 13.5psi will come faster then 22psi.


back to the topic...
Those are awesome numbers, even for a 2.0L!!! I'd like to see the dyno sheet.

[shadowmd]

nice numbers!

i'm looking at getting my vf34 pro-tuned soon. can't wait!

[Paul]

Originally Posted by srt2stiguy05

Well I agree with the OP cause responsiveness is now LESS (3800 RPM) Instead of (3200-3400)

Yep on a 2.0 thats what happens.....different story on a 2.5

Originally Posted by srt2stiguy05

I think either go TMIC (STi or aftermarket) or Bigger Turbo and a better tune with OUT UTEC like Open Sourced and you will see better #'s and faster Response

Guess your one of those experts?

OP: sorry for the ot....cant wait to see the graph!

[Badler]

Originally Posted by srt2stiguy05

Well I agree with the OP cause responsiveness is now LESS (3800 RPM) Instead of (3200-3400)


I think either go TMIC (STi or aftermarket) or Bigger Turbo and a better tune with OUT UTEC like Open Sourced and you will see better #'s and faster Response

What's wrong with UTEC? Please explain. Most are OS flashed and use the UTEC on top of that, like myself. God forbid you get tuned on UTEC, by the people who MADE IT...

OP, don't listen to this person.

[4thgenx42]

DAMN, those are some good numbers. Cant wait to see if ill end up with a VF39 or 16g.

Congrats!

[srt2stiguy05]

Originally Posted by aaronmsadler

What's wrong with UTEC? Please explain. Most are OS flashed and use the UTEC on top of that, like myself. God forbid you get tuned on UTEC, by the people who MADE IT...

OP, don't listen to this person.

Well you dont have to listen to me at all, Just my experience using UTEC and its 1 dimensional tuning source, I have made More Power on Open source then Using UTEC.

[Racer_X_X]

Originally Posted by srt2stiguy05

Well you dont have to listen to me at all, Just my experience using UTEC and its 1 dimensional tuning source, I have made More Power on Open source then Using UTEC.

That would tell me that the person tuning the UTEC (in your car) didn't know what he was doing.

[Badler]

Originally Posted by Racer_X_X

That would tell me that the person tuning the UTEC (in your car) didn't know what he was doing.

Yup.

[Steve.804]

Nice numbers! Do you know what your boost is at redline?

[fastlanerex]

Originally Posted by Steve.804

Nice numbers! Do you know what your boost is at redline?

tapers to 19.5 psi at redline when it hits it hits hard. i called jermaine about getting my dynoplot emailed to me im still waitin on it plus a timeslips coming soon

[fastlanerex]

got dyno graph for some reason i cant copy and past it from anywhere my myspace pics my email.. Im getting pissed so i took a pic of it on my comp with my cell phone hope it comes out ok.


I hate computers **** it i give up unless someone can walk me through this ive never had a prob posting pics before

[Paul]

i see a red x

[STimo]

Originally Posted by scramjett

What's your take on "lag" with your setup? You've got a VF39 + FMIC, which the experts say will be a real laggy car. I'm in the middle of doing a VF swap + FMIC in my 08 and people are telling me it will be too laggy. I guess I'll find out soon enough when I finish my install. . . .

a VF39 LAGGY??? LOL.. IMO that's what the 2L WRX should have came with, and the STI an 18/20G.. I run a 30R on my 2.5L and i dont consider my car laggy in the least bit, i hit full boost @ 4K rpm and redline at 7.5K, thats plenty of RPM to keep the turbo spooled through every gear..
Most people dont floor their car in 5th gear at 30mph, now if ur dong that then any turbo is going to be laggy.. All you have to do is downshift and you have instant power, no "lag" at all from ~3.5K and up on my car with a 30R.. I just dont understand how people consider these turbos laggy.. a 40R on a 2.5L, now thats starting to get laggy for a street car.. But even a 35R on the 2.5L has plenty of useable power, and i wouldnt even consider it "laggy".. You have to look at the dynocharts and see where the car is making power..
The car might feel "laggy" because you're making another ~100whp over what the car was before and it'll take ~500rpm (just as example) to get that extra 100whp, but the car is still making about the same power as it did before at the same rpm with a smaller turbo it just dosnt feel like it because the car is so much faster.. if you look at 30R/35R STI's you'll see that they're making ~230whp by ~3.5K rpm and thats what a stock STI puts out TOPS..
You have to remember These arent supercharged v8's that have a flat powercurve, you dont floor a car at 2K rpm and expect it to take off.. If you want power like that you should have gotten a supercharged v8.. But hell even a supercharged v8 is faster when you start at ~3k rpm instead of like 2K rpm.. Basically if you know how to drive your car, "lag" should NEVER be a problem unless you're running a 40R or bigger on a 2.5L.. Once im at 3.5K-4K rpm with my 30R, boost response is almost instant..
IMO lag is when you're at the right rpm for the turbo to be spooled to full boost, and you punch it from that rpm and the time it takes to hit full boost from then is LAG, and you wont start getting that until you have a 35R or bigger on a 2.5L.. And even then, all you gotta do is brakeboost it and that fixes the "lag" problem..
If you know how to drive your car correctly lag should NEVER be a problem.. I race my buddies cobras and v8's all the time from a roll, and if i dont brakeboost i take off just as hard as they do, however if i brakeboost that'll make me pull ~1 to 1 1/2 cars instantly on a car that i would pull even with if i didnt brakeboost..

[STi Mikey]

Originally Posted by STimo

a VF39 LAGGY??? LOL.. IMO that's what the 2L WRX should have came with, and the STI an 18/20G.. I run a 30R on my 2.5L and i dont consider my car laggy in the least bit, i hit full boost @ 4K rpm and redline at 7.5K, thats plenty of RPM to keep the turbo spooled through every gear..
Most people dont floor their car in 5th gear at 30mph, now if ur dong that then any turbo is going to be laggy.. All you have to do is downshift and you have instant power, no "lag" at all from ~3.5K and up on my car with a 30R.. I just dont understand how people consider these turbos laggy.. a 40R on a 2.5L, now thats starting to get laggy for a street car.. But even a 35R on the 2.5L has plenty of useable power, and i wouldnt even consider it "laggy".. You have to look at the dynocharts and see where the car is making power..
The car might feel "laggy" because you're making another ~100whp over what the car was before and it'll take ~500rpm (just as example) to get that extra 100whp, but the car is still making about the same power as it did before at the same rpm with a smaller turbo it just dosnt feel like it because the car is so much faster.. if you look at 30R/35R STI's you'll see that they're making ~230whp by ~3.5K rpm and thats what a stock STI puts out TOPS..
You have to remember These arent supercharged v8's that have a flat powercurve, you dont floor a car at 2K rpm and expect it to take off.. If you want power like that you should have gotten a supercharged v8.. But hell even a supercharged v8 is faster when you start at ~3k rpm instead of like 2K rpm.. Basically if you know how to drive your car, "lag" should NEVER be a problem unless you're running a 40R or bigger on a 2.5L.. Once im at 3.5K-4K rpm with my 30R, boost response is almost instant..
IMO lag is when you're at the right rpm for the turbo to be spooled to full boost, and you punch it from that rpm and the time it takes to hit full boost from then is LAG, and you wont start getting that until you have a 35R or bigger on a 2.5L.. And even then, all you gotta do is brakeboost it and that fixes the "lag" problem..
If you know how to drive your car correctly lag should NEVER be a problem.. I race my buddies cobras and v8's all the time from a roll, and if i dont brakeboost i take off just as hard as they do, however if i brakeboost that'll make me pull ~1 to 1 1/2 cars instantly on a car that i would pull even with if i didnt brakeboost..

I couldnt agree with you more, especially about the stock turbo's. For the price of these cars the wrx should come with the 39 and the sti should come with a 18G sized turbo.

OP, I feel your pain. Im so bored during the day, I was laid off 2 months ago. Played golf, drove down to florida for awhile, now what?!?? Dont have an interview until June.

[scramjett]

Originally Posted by STimo

a VF39 LAGGY??? LOL.. IMO that's what the 2L WRX should have came with, and the STI an 18/20G.. I run a 30R on my 2.5L and i dont consider my car laggy in the least bit, i hit full boost @ 4K rpm and redline at 7.5K, thats plenty of RPM to keep the turbo spooled through every gear..
Most people dont floor their car in 5th gear at 30mph, now if ur dong that then any turbo is going to be laggy.. All you have to do is downshift and you have instant power, no "lag" at all from ~3.5K and up on my car with a 30R.. I just dont understand how people consider these turbos laggy.. a 40R on a 2.5L, now thats starting to get laggy for a street car.. But even a 35R on the 2.5L has plenty of useable power, and i wouldnt even consider it "laggy".. You have to look at the dynocharts and see where the car is making power..
The car might feel "laggy" because you're making another ~100whp over what the car was before and it'll take ~500rpm (just as example) to get that extra 100whp, but the car is still making about the same power as it did before at the same rpm with a smaller turbo it just dosnt feel like it because the car is so much faster.. if you look at 30R/35R STI's you'll see that they're making ~230whp by ~3.5K rpm and thats what a stock STI puts out TOPS..
You have to remember These arent supercharged v8's that have a flat powercurve, you dont floor a car at 2K rpm and expect it to take off.. If you want power like that you should have gotten a supercharged v8.. But hell even a supercharged v8 is faster when you start at ~3k rpm instead of like 2K rpm.. Basically if you know how to drive your car, "lag" should NEVER be a problem unless you're running a 40R or bigger on a 2.5L.. Once im at 3.5K-4K rpm with my 30R, boost response is almost instant..
IMO lag is when you're at the right rpm for the turbo to be spooled to full boost, and you punch it from that rpm and the time it takes to hit full boost from then is LAG, and you wont start getting that until you have a 35R or bigger on a 2.5L.. And even then, all you gotta do is brakeboost it and that fixes the "lag" problem..
If you know how to drive your car correctly lag should NEVER be a problem.. I race my buddies cobras and v8's all the time from a roll, and if i dont brakeboost i take off just as hard as they do, however if i brakeboost that'll make me pull ~1 to 1 1/2 cars instantly on a car that i would pull even with if i didnt brakeboost..

^Enjoy your time away from work as much as humanly possible!! I was laid off 6 years ago and went almost 7 months w/o a job and the only thing I regret about it is that I didn't take advantage of the time off. Think of it like this... You'll probably never again have this much time off again until you retire.

******************

Hey I don't know if the "lag" tangent this thread has taken is meant to be for me to read... But, I was just talking about what other guys here on NASIOC have said about VF turbo's and FMIC's. Some people seem to think that they are "laggy" combination FTL. In all honesty this is my first turbo car and I'm making everything up as I go... got a good deal on a VF48 that was too good to pass up and so I bought it. Needed a FMIC to run the turbo, so I bought that. Needed injectors and fp to get the most out of the 48, so I bought those but I bought 850cc's because I didn't know how I'd feel with a car that's only about ~300whp and I bought big enough injectors to run at least a 20G. Needed to get a tune and when I started looking for a tuner because there are not any where I live is when I started hearing back from people, " A vf48 and a fmic, you're going to have a sea of lag! " So now my car is in pieces until I can finish my turbo swap hopefully next week and I'm getting cold feet about *only* going with a turbo that is good for a little over 300hp depending on the dyno. So I've got a little buyers remorse about not going with something bigger like I had always planned on... Had planned on a Blouch 18G before I bought my car, but the deal on the 48 was so good it was too good to pass up. My car is just a toy and something I like working on and doesn't see many trips to the grocery store, so not being a DD machine I think I'm doing too much work to it to just get a little over 300whp when for the same ammount of work and maybe another $650 I could be running an 18or20G. I've not seen anyone else run a 48/39 on a FMIC until the OP started his thread and I wanted his impressions of the setup even though he's got 0.5L's less than I do. Sorry for hijakcing the thread!!

[Steve.804]

I think it's funny how people presume turbo lag. A VF series turbo with a FMIC is "laggy as hell" as it peaks torque (say 300+ to the wheels) at or around 3500rpm (EJ25, probably closer to 4000rpm on an EJ20) with a good tune and supporting mods when a totally bone stock 07 STI makes peak torque at 4400rpms and only puts about 230 to the wheels. That's slow AND weak

Your choice of turbo has a much higher reflection on 'turbo lag' than your choice of intercooler. VF-anything is not a laggy turbo.

[yeahdudebrown]

In all seriousness, what did the guys at Turboxs think about your SSAC fmic?

[fastlanerex]

Originally Posted by yeahdudebrown

In all seriousness, what did the guys at Turboxs think about your SSAC fmic?

I dont really care I did my research before making that purchase and when jermaine told me that my car put down higher numbers than most vf39 stage 4 wrx did on his dyno...that tells me theres absolutly nothing wong with my fmic

[GDB FAN]

Originally Posted by fastlanerex

I dont really care I did my research before making that purchase and when jermaine told me that my car put down higher numbers than most vf39 stage 4 wrx did on his dyno...that tells me theres absolutly nothing wong with my fmic

I think he was talking about how the SSAC is a knock off of Turbo XS's FMIC kit. Not that it's crappy and cheap. (I have one too and it's great )