I need some serious advice because all my research is starting to confuse me. :dunno: I'm going to upgrade my tdo4 turbo. Cobb Stage 2 just sucks! (okay, after two years). BTW- I have no specific power goals, just want to be quicker than my current set-up. I also decided to stay with a top mount. My car is my daily driver so I want a good midrange power. I was originally sold on the quick and easy vf39 due to the easy installation and least expensive option. Now, after much research I think the vf39 is an impossible option due to all the cracked hotsides and if they are in good condition they're now going for 450-550. Why not spend a bit more and get a better turbo, right? Here's my questions... Suggestions on best turbo and matching injectors? budget is 1000 If I get something other than vf34/39, who can tune my car locally? Does this mean I'll have to dump Cobb AP that I've been running? thanks for the help
Dave I dunno how long u can wait...I will have my vf34 setup FS maybe next year...Fuel Pump, Injectors, VF34 w/10k miles, and ECU already tuned...u just need a TMIC (upgraded) with 255whp/252wtq
how about next week? I can't wait. I'm buying Sarah's wrx from her next year, then my car will really go under the knife. (2.5L swap) I just need a fix until then.:yumyum: I keep seeing the FP evo3 16g as a good option, but I no clue about the tuning & injector choice...http://store.forcedperformance.net/...uct_Code=NTWRXFP18G5H&Category_Code=WRX-Turbo btw- what is the approximate range for a evo3 16g on a 2.0L? I thought their site stated 330horsepower, but that can't be right!?! Are we talking 260-280? just wondering
A larger turbo will make your top mount not have to work as hard to cool the charge since a larger turbo will be more efficient. No worries there. I'm not too up on the bolt-on options, but a super-16g or some variant from Deadbolt sounds like a good option as far as bolt-ons are concerned. For injectors, get big ones. Like 8**cc range. I'm hitting 80% IDC on 650's @ 22psi on my turbo with weenie heads. There's enough people here that can make it run right to get you by.
Go with a super16g, especially if your budget is around a 1000 dollars. As far as injectors go, a set of 720cc or something similar will be plenty, but obviously the bigger the better. I ran modified stockers for 18g and they were fine, although I only boosted 18-19psi. As far as tuning goes, there are plenty of people around here that could get you running with that set up since so many people are now dealing with that turbo, or you can wait for another tuner to be flown in, or you can drive to chicago and visit P&L. The only reason you would have to drop the cobb would be if someone around here did a openecu tune but you can always resell that and make back some of your money since a AP never really loses all of its value
Go with the big 16g (db or the fp evo3). I am running the fp18g with 630cc injectors. at 22 psi my idc's max out right around 90-91%. So I would say anything over 650 and you will be more than ok. As for the tune, I can tune ap's if you need something. Not a big fan of doing ap2's, but it can be done. Wagon's Rock did the evo3 and had DB tune it. He posted up some dyno plots and such. Russ
regarding the cracks in VF39s, does this crack mean certain death? I know there are a lot of STIs out there with high miles that most likely have cracked turbos....
Russ, I will probably hit you up for this. question though...Let's say i slap this in the 16g, injectors, etc....Can I safely drive it until tuned? ( Could I run the vf39 map (2004- Cobb = vf39 map available) since it's closer to a 16g set-up)? btw- I bought my AP a couple years back so I'm a V1 guy:roll: also, anyone answer this one? I'm running a stock airbox with K&N drop-in. Is this going to be okay? i thought I could run with it up to 300whp so i should be okay, correct?
On the same lines... what are peoples opinions on the different brands? (deadbot, FP,...). Anyone had any problems or favor one for any reason?
Yeah, that's what i thought and the reason i was questioning running the Cobb OTS vf39 map.....which includes deatschwerks 660cc injectors. :dunno:
I guess I wasn't aware that Cobb had other maps out now -- last I saw was the standard stage 2.5 that supported STi pinks. So I guess if you had 660cc modded stockers, you'd be fine with running the OTS map until your tune as long as you took it easy on the go pedal (re: stay out of boost).
yup, they have a map for the 2004 that supports the 660cc injectors with a vf39. either way I'll get a real tune asap...just need the car to run though since it's still my daily driver:roll:
It will start, it just runs really- REALLY rich. I tried it right after I installed my 665cc injectors just to see if it would work. I flashed a new map right after that and started scaling the injectors properly.
Your car will start up and run. It will probably not like it to much, but once your fuel trims start adjusting it will even out a bit. I can get ya a map that will be pretty close to get ya started and then go from there. Russ
+1 for Russ's limp maps That was a life saver for me. I drove my car for quite a while with the limp map installed and never had any problems, just no power.
another question regarding the FP 16g. they offer a 7cm turbine housing or an 8cm, same cost. Does anyone have any experience with the different sizes? Is the 7 that much quicker to spool up and does it real make a noticable difference on the top end? meaning less power with the 7cm...
I say buy the 8cm if they are the same price. You will like the extra top end a bit more and it shouldn't be a big difference in spool if the tune is good
What are you looking for, spool or top end?? Go from there. If you EVER plan on dumping in a 2.5l, go with the 8cm, if you plan on sticking with the 2.0l, go with the 7cm. With the 7cm you will be in the low to mid 3k mark for spool, and going to the 8cm will push the even higher. Russ
I'll probably go with the 8cm even though 99% of my driving is around town. hope i don't regret it. If/when I start the big project for the 2.5 swap I'll actually take this turbo off and put it on Sarah's (my GF) 04 rex.
Alright, unless something happens next week I'm ordering a 16g evo3, big top mount, and DW 650cc injectors. Does it make sense to go with a GM boost solenoid?
Argh, I'm still learning. Thanks Tom! Okay, I throw turbo, pump, inj... on my car, with the exception of the GM boost solenoild. Who can tune my car around here? I'll need a map to get my car rolling and then take it to someone for a good tune. BTW- I'd love to ditch my AP from my so i can throw that on my other wrx.
Maybe you can sweet talk Russ into it or have DB take care of it for ya. What I would do is have the car tuned with the AP still installed (realtime tuning ftw) and then have the final map saved as an AP base map. Then copy the rom, uninstall the AP and then reflash the rom with ecuflash. Done.
Another question. Considering I'm sticking with the tmic, what's the best heat shield for the turbo? I'm assuming the modified stocker I'm using may not fit. Does anyone use a turbo heat shield bag? and are they worth it? something like this... http://www.heatshieldproducts.com/turbo_heat_shield.php
The blanket from boost logic seems to get good reviews. http://www.boostlogic.com/xcart/product.php?productid=45&cat=0&page=1
