I am thinking getting a new turbo for my 08 WRX. I was considering td05-18G. I have 2.5L and will not upgrade fuel system, since it already got STI injectors. I don't know if I should go with td06-18G or td05. It's $500 difference, kind of pricie I don't want to run more than 18psi, since it's a DD. What do you guys think about those turbos on 2.5L? Am I going to see 270-290 whp @17psi on td05-18g?
I have a TD05 18g coming on Wednesday for my '06 WRX. The TD05 18g is quite small for the 2.5L, but it's going to have slightly better spool and top end then a VF39. I'm sure you'll be able to max out your injectors with this turbo (I don't plan on swapping out mine). With a good tune, it can easily put out ~300 whp. With some meth or race gas, the TD05 18g can crank out 24-26 PSI, and get up in the 350 WHP range. I got mine used on NASIOC, and wouldn't honestly recommend tossing the cash out for a new one. If you're going to buy new and looking for good spool and good power, a TD05 20g is a better fit for the 2.5L.
I have a TD05 18G right here waiting for you. PM me if you're interested. Only had about 3-4k miles on it. Also PE 800cc injectors too if you consider upgrading yours.
I don't know if sti pink injectors + 18G is the best combination. You'd be maxing out the injectors and barely touching 17psi.
It'll be better than stock without question. Saw Jorge do a tune of 18g + 2.5 in a leggy that really made it scoot.
That's ok for now I only plan on boosting 15-17psi anyway. Just looking for something with little more power in the upper RPM range
I should point out that the 8cm compressor is terrible for this turbo. The decrease in spool puts it right in line with numerous much larger turbos, and the top end of the TD05 is very similar. If you're really just looking for a very quick spooling DD turbo with a broad torque range on the 2.5L, the TD05 18g or the EVO3 "big" 16g are good turbos.
isn't there a boost creep issue with the TD05 and the 2.5? I went EWG for my current hybrid build for that reason (TD05-20G on hybrid engine).
it's the 7cm that has the creeps, that's why they recommend the 8cm for 2.5l u can run td05 or 6 on the 2.5l without issues shoot, i run a td04 on mine =P
18g is to small for a 2.5l. Spool will be close to 20g area with alot less output. Also, with my 18g on a 2.0l, at 21psi my idc's are 91-92% with 630cc injectors. Russ
The TD05 spool is around 500 rpm sooner (~3k vs 3.5k rpm) then the 8cm 18g or any 20g. But yes, you could call it a smaller turbo for the 2.5L.
I know 18G is kind of small for 2.5L, but I am using stock injectors and want good spool for daily comute I just want to get 270whp with 18G and good spool. Don't want to spend extra $500 for TD06 if I could use TD05. I will port WG, so boost creep doesn't bother me.
YES, but no no no with stock fueling system. If you want 270whp and lots of down-low torque (300+), the Evo3 16g may be more up your alley. It pushes more air than a VF39, spools faster, and would be perfect for running 18psi near 3k. Either way, the 18g (either one), VF39, VF34, or whatever will get you to where you want to me. The Evo3 will simply get you in the torque sooner. I'm considering going from my VF39 to the the Evo3 because I miss that low end torque so much Edit: and yes, porting is a fantastic idea. It's not fun hitting fuel cut well into 4th gear. It sucks
desided to go with Deadbolt TD06-18G turbo. Talked to Jerry he said they had 06 wrx make 277whp with stock fuel system at Mustang dyno. I was planning for 250-270 whp @ 15-17psi. I will search for used TMIC before getting that turbo. Can't wait til next spring. :yumyum:
Not sure about the 08's, but you can get about that power with a stage 2 VF39 for probably quite a bit cheaper than your 18g. Like I said, not sure how the 08's differ though.
An 18g will spool faster and keep power longer. It's not just about peak numbers, it's about powerband, especially if he's choosing a small turbo like the 18g on a 2.5L. With that said, I'm not sure I'd shell out the cash for a new 18g, either. I got my used 18g for just a bit more then used VF39's were going on NASIOC. At any rate, it'll be a fun car. EDIT: Just noticed you decided on the TD06 18g. I would very strongly suggest against the 8cm housing. The large housing increases lag significantly, and you will not be able to take advantage of the higher topend with your stock injectors.
you'll need to get a dbw wrx or sti intake manifold. unless some company made a bigger tmic for the 08 wrx. Also, is the turbo made for the 08+wrx or pre 08?
yes, it's noticeable but IMO, if going from vf39 to 18g, your butt dyno probably won't notice too much of a difference.
side question- I've seen a few 2.5L wrx's with 16g evo3s that hit 300awhp...if that's true wouldn't the 18g net you in the 300-310/20 area?
It's a bolt on turbo to 08 WRX and they have it oil and water cooled. It comes with 7cm Td06. It's very hard to find used 08 turbo. Legacy GT and 08 wrx are the only one to use this turbo and not a lot of them are used. I think I would rather spend some more money and get turbo from dependable sourse. Of course it would be nice to get it cheaper but it's not so easy to get them However, I could get a used Perrin or AVO TMIC from Legacy forums, they are easier to find since everybody go FM.
It should get more than that if I had bigger injectors I only have STI fuel system in my car. Maybe in a near future I would get 750 injectors w/pump and should see 300+ whp.
With new injectors, yep. And Evo3 would be a torque monster. That's my next step. Still can't believe you're as fast as me with a 16g on a 2.0 Steve
Max, IMHO...if your'e going through the trouble of an installation and tune I'd say you put the appropriate fuel system in place too. Sounds like you have time to save up for this since your plan is next spring. Of course, PM me for the installation when you're ready!
It's such a mess installing injectors I remember it took me 20 minutes to change my Civic injectors but WRX are hidden in the deep. So, I was planning to run that turbo with low boost and get STI type power until I am ready to take on the injectors. And yes Dave, I will be calling you with turbo install. I could take everything out but don't want to screw up new turbo by installing it incorrectly. I know you have done them before so a little help would be nice from a guy with experience
yes, injectors aren't the most fun...but they are not as bad as one would think. For me, Injectors are 1.5-2.0 hour job....from opening the hood to closing it.
Dave's car as quite the top end. Nothing like 18.5 PSI at redline. The big 16g or 7cm 18g turbo's are both good for an easy 300+ WHP car (mustang dyno) with the right fuel, and can net an easy more 50 WHP from meth/race gas as you turn up the boost.
If they're the same as the previous years STI and (2.5L) WRX, they're 550's. Good, as I said, the 7cm is what you want. You're right about turbos for the 08 WRX, though. Even low mileage VF39/43's are going for over $500 on NASIOC. At least buying new gives you a peace of mind.
that's the way i like it:biggrin: Not to blah blah too much, but man...I love the tune!!!!!! The car runs better than ever! now if I could get my build done so I can hang with fuji..his pssshhh is just too fast! sorry to go off topic guys
