Hitting 12 seconds
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Joined: Aug 2004
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Hitting 12 seconds
Will I hit late/early 12 seconds on a 1/4 mile track with this setup on a 2005 WRX STi?
IHI VF34 turbo
STi Pink 565cc injectors
Walbro 255lph fuel pump
ECU upgrade (XEDE or ECUtek)
APS 3" High Output TBE w/ CAT
Suspension upgrades (you guys know what's up)
Will be running 91 octane gas (not planning on higher octanes)
IHI VF34 turbo
STi Pink 565cc injectors
Walbro 255lph fuel pump
ECU upgrade (XEDE or ECUtek)
APS 3" High Output TBE w/ CAT
Suspension upgrades (you guys know what's up)
Will be running 91 octane gas (not planning on higher octanes)
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Well, a stock STi does it in about 13 seconds so my educated guess would be you gotta good shot at it. On 93/94, I'd say hell yeah, but on 91, I think you'll need a very good tune, but anything's possible. Keep in mind tires will play a role in your time as well. Drag tires will hook up much faster and may buy you some tenths. One question though, you're upgrades seem well thought out, but doesn't the STi come with 565cc injectors stock?
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Car Info: 02WRXpseudoSTiWannabeWagon
I think that the VF34 could/should get you there, but is a bit small for a 2.5 liter engine. It's just about right for the EJ20, IMO.
Originally Posted by Me&STi
Will I hit late/early 12 seconds on a 1/4 mile track with this setup on a 2005 WRX STi?
IHI VF34 turbo
STi Pink 565cc injectors
Walbro 255lph fuel pump
ECU upgrade (XEDE or ECUtek)
APS 3" High Output TBE w/ CAT
Suspension upgrades (you guys know what's up)
Will be running 91 octane gas (not planning on higher octanes)
IHI VF34 turbo
STi Pink 565cc injectors
Walbro 255lph fuel pump
ECU upgrade (XEDE or ECUtek)
APS 3" High Output TBE w/ CAT
Suspension upgrades (you guys know what's up)
Will be running 91 octane gas (not planning on higher octanes)
Last edited by MARKSTI; Dec 16, 2004 at 11:05 PM.
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Joined: Aug 2004
Posts: 150
Originally Posted by BlackedOutSTi
One question though, you're upgrades seem well thought out, but doesn't the STi come with 565cc injectors stock?
Thanks, I appreaciate everyone's time to answer the question. I have a better idea now on how it will do. I will consider using higher octanes, I'm just a little worried of what it may do to my car. I read the manual regarding octanes, and I'd follow the recommendations as much as I could.
Last edited by Me&STi; Dec 16, 2004 at 11:49 PM.
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Joined: Jan 2004
Posts: 42
You would be better off getting a VF22 clipped and port/polished. It will hold boost longer and give you more topend. Gruppe-s sales them for $599. You can get all the work done to it at deadbolt.com. Talk to Jerry. This may even put you in Low 12's high elevens. You can also take your injec. out and ship them to Perrin and have them modded to 816cc. for $200. This flow rate will help out alot with the bigger turbo.
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Hey, just thought I'd let you know you may be correct about the injectors....I was just on APS's website and according to them, the 2004 spec STi has side-feed 480cc injectors. I don't know what model year you have, but I think the '05 has the 565cc's. I believe the 480's were running very close to 100% duty-cycle, if not higher, which would eventually cause a large warranty repair bill for SOA. Someone else on here may have more accurate info though....
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^^^
Right on BlackedOutSTi... thanks a bunch!!
I have an 05 WRX STi and I think it is side feed injectors for this model (or for all models of STi's?). After all these inputs, and I'm going to do a little more searching to see what I can come up with. But, I am considering Vishnu to tune the car for me, I kinda don't trust myself a lot on this. I'm thinking of doing Stage 1 for now, and see how it does on 1/4 track. Then from there, I'll see if I want to step up to Stage 2 which can get you to 11's.
Right on BlackedOutSTi... thanks a bunch!!
I have an 05 WRX STi and I think it is side feed injectors for this model (or for all models of STi's?). After all these inputs, and I'm going to do a little more searching to see what I can come up with. But, I am considering Vishnu to tune the car for me, I kinda don't trust myself a lot on this. I'm thinking of doing Stage 1 for now, and see how it does on 1/4 track. Then from there, I'll see if I want to step up to Stage 2 which can get you to 11's.
Last edited by Me&STi; Dec 19, 2004 at 01:09 AM.
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first off there are at least 2 STIs over on nasioc that have got into the 12s bone stock so you should be right in there with that list
also 04-05 stock STI injectors are 480cc. the STI 565 you hear about are the old top feeds. But you can run a VF34 on stock injectors just fine, I did for 20K miles, even though the injectors are running near max on the VF34 with good tuning you wont be running as rich as on stock EM and therefore your injectors will have more headroom. with TBE, short ram, headers, and set at 16PSI I never ran over 95% IDC once tuned. And if you only plan on running 91 oct I would get an Ecutec flash over the Xede.
also 04-05 stock STI injectors are 480cc. the STI 565 you hear about are the old top feeds. But you can run a VF34 on stock injectors just fine, I did for 20K miles, even though the injectors are running near max on the VF34 with good tuning you wont be running as rich as on stock EM and therefore your injectors will have more headroom. with TBE, short ram, headers, and set at 16PSI I never ran over 95% IDC once tuned. And if you only plan on running 91 oct I would get an Ecutec flash over the Xede.
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Originally Posted by Me&STi
^^^
Right on BlackedOutSTi... thanks a bunch!!
I have an 05 WRX STi and I think it is side feed injectors for this model (or for all models of STi's?). After all these inputs, and I'm going to do a little more searching to see what I can come up with. But, I am considering Vishnu to tune the car for me, I kinda don't trust myself a lot on this. I'm thinking of doing Stage 1 for now, and see how it does on 1/4 track. Then from there, I'll see if I want to step up to Stage 2 which can get you to 11's.
Right on BlackedOutSTi... thanks a bunch!!
I have an 05 WRX STi and I think it is side feed injectors for this model (or for all models of STi's?). After all these inputs, and I'm going to do a little more searching to see what I can come up with. But, I am considering Vishnu to tune the car for me, I kinda don't trust myself a lot on this. I'm thinking of doing Stage 1 for now, and see how it does on 1/4 track. Then from there, I'll see if I want to step up to Stage 2 which can get you to 11's.