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Old 02-18-2010, 11:39 AM   #1
Wagon_bob
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Default Frankenstine Q's

Ok bare with me i am new to this Subaru stuff......

Ok so i just got my first Subi and i am like everyone else in the world i want more power now... I just want some peoples opinion about the best way to go.....

Okk here is what i found i have:
I took off the intake mani the other day and found out i have a EJ25 Block and on the heads it says i have EJ20 heads. Now i am not sure why this is but it is what it is. My car also has a FMIC running top feed "PINKS" with the VF39 STi turbo. It has a stock exaust header but aftermarket up pipe and down and full turbo back..... Now today i looked under the floor and also found i have the TurboXs piggyback dealeo. So that is what i have


Now for what i want:
I do not Know what Hp it has now I am getting a Base dyno run this weekend, But i am looking for a nice safe 350Hp or so?? So this summer i am pulling the motor and doing what needs to be done. I just want OPINIONS oh what way to go. Now i do not really want some Crazy bild ideas because my wife said i get some money but not a lot.....

So any info would be great Thanx
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Old 02-18-2010, 01:45 PM   #2
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put some forged pistons in that block, do tgv deletes, and get a bigger turbo ie 18g the tune
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Old 02-18-2010, 07:56 PM   #3
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ok thats it..... Thats kinda easy. What about rods? balincing the crank.
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Old 02-18-2010, 09:12 PM   #4
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if the block is fine I would just put some drop in forged piston OR over bore .20 with forged pistons and call it a day. UNLESS you WANT to go crazy (which you stated you didnt) and then do rods, acl bearings, 09 sti crank blueprinted and balanced and then 3-5 angle valve job on the heads with Kelford os GSC cams and new valves springs and retainers. OR just do pistons. the balls in your court. GAME ON
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Old 02-21-2010, 04:37 AM   #5
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Ok not trying to beat a dead horse but now i have a couple more questions...... Only because i am not happy with my dyno runs today!!

267hp 276tq

Ok i just got a smoken deal on a GT35R from a friend and another just said he would hook me up with custom up and down pipes. What should i do to the motor to support that so i dont kill it.... Because i belive i can not just get the piping done and throw it on?!?
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Old 02-21-2010, 10:59 AM   #6
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so you have a 2002 WRX Wagon? It's a VF39, I'm not surprised you got that.
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Old 02-21-2010, 11:29 AM   #7
25rsti
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in order to run that turbo you would need forged internals on the block #1. Some headwork would be appropriate #2. At least some 850cc injectors, TGV deletes, Big MAF intake, bigger fuelpump, fmic, ebcs, and a good tune.
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Old 02-22-2010, 01:34 AM   #8
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Quote:
Originally Posted by FuJi K View Post
so you have a 2002 WRX Wagon? It's a VF39, I'm not surprised you got that.
but it still has the 2..5 block thought i would get more then that??


Quote:
Originally Posted by 25rsti View Post
in order to run that turbo you would need forged internals on the block #1. Some headwork would be appropriate #2. At least some 850cc injectors, TGV deletes, Big MAF intake, bigger fuelpump, fmic, ebcs, and a good tune.
Ok, so shoult i stay with the 2.0 heads or should i up grade them also?? and how about the ej25 block is that good enough??
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Old 02-22-2010, 11:15 AM   #9
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Quote:
Originally Posted by Wagon_bob View Post
but it still has the 2.5 block thought i would get more then that??

Ok, so shoult i stay with the 2.0 heads or should i up grade them also?? and how about the ej25 block is that good enough??
In turbo cars, power is on the turbo. Torque is on the displacement some. You don't up your turbo, you stay with the same power. I have my built motor with $6000 into it, but it's not gonna make 600hp with a TD04L.

The head choice is depending how much power you're looking at. GT30R+ turbo sizes is when you should start looking at head upgrades and head porting.
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Old 02-22-2010, 09:01 PM   #10
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ok, i understand you dont know anything about these cars so im going to let you in on something, you realize your making more power than a stock sti right? First thing i would look into upgrading is your transmission, if you have stock wrx trans its only good to maybe 350whp if you dont beat it, an sti trans swap into your wrx is going to run you about 4000$ on average. ive seen em go for 6000 on ebay with really low miles. if you didnt realize that 6 speed was not stock on your car, check your brakes, because 02 wrx brakes suck with about 270 wheel. i have alot of mods in my car and WISH it came with a 2.5 block and 2.0 heads. thats a sick swap, supposidly with proper tuning a torque monster. but before you jump to going fast, make sure your driveline can take the power. cause 600whp doesnt mean anything if your trans blows on the line, or when you finish and crash your car into a tree because it doesnt stop. make sure to think things through. im not bashing so please dont take it that way. hope this helped.

Last edited by Gamble_WRX; 02-22-2010 at 09:07 PM.
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Old 02-22-2010, 09:04 PM   #11
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ohh and to add, from what i read your probably loseing power with that front mount on the Vf39. ive seen like 20+ horse power lost with a good tune. yeah, get a topmount or a bigger turbo, you will see some gains.

http://www.iwsti.com/forums/2-5-lite...ost-power.html
this guy had an upgraded turbo and still lost power

people can say they heatsoak all they want, you will find a noticeable throttle response change and a decent power gain (from that post he got 30+ WHP in some areas) not saying that high, but noticeable, your trans should still handle the power, and get a good tune you'll be good. upgraded top mounts go on ebay for like 130, you will have to bend the drivers side mount, so youll need a torch and a pair of channel locks. good luck!

Last edited by Gamble_WRX; 02-22-2010 at 09:14 PM.
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Old 02-22-2010, 11:19 PM   #12
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i have a 2005wrx wagon with a sti block and wrx heads. I have stock sti internals, tgv deletes, 750cc in jectors a tune, boost controller, walboro fuel pump and a 18g turbo with a sti top mount. I have about 310whp and a little less torque not 100% on the numbers very had it dyno'd this was with a street tune. The car runs great and pulls hard and is a lot of fun. I don't know how much you want to spend but i got my 18g for $750 brand new shipped! I thought it was a great deal. Anyway im just saying the car is great, plenty of everyday power but still enough to keep up or beat anyone your near everyday driving to work. lol. I did everything, bought the sti block with wrx heads (only had 3,000 miles on it ( I know cause i was there when it was bought from subaru brand new)) with tgv deletes, walboro fuel pump, 750cc injectors, sti top mount, 18g turbo, boost controller, tune, 17's, install of the motor, all for only $3,000. The deals are out there you just gotta look for em. But as far as the setup go's i love it and would definatly recomend it. I would honestly invest in a STI TRANSMISSION before you get anymore power though. I never luanch my car because i would most likely break my 5-speed. Thats my next modd is a 6-speed. Our 5-speeds are crap and cant handle much more power then I have now. So unless your planing on running my same setup and never luanching your car your prob gonna break your 5-speed with a quickness. anyway good luck man!
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Old 02-23-2010, 12:01 AM   #13
Wagon_bob
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Thank you for the info and i just wanted to throw it out there i am not a kid who just wants to go fast...... As for my tranny i have a fully cryo treated gear set and some carbon syncros. I guess it is a $7k set up. As for brakes i do get what you say about them..... I have always upgraded them first but i got the car the way it is amd i am not sure what way i am going yet. I do not really want to go with STi's I am looking in to others...

I know i am pushing more then a stock STi but i just wanted more. I do need a tune i know that. So maybe i will start off my up grades by tossing on some 800cc or bigger injectors and maybe a 20G and do a propper tune! and see what that dose. TGV delets of course also.....

Thank everyone for all the info.....

Quote:
Originally Posted by Gamble_WRX View Post
ok, i understand you dont know anything about these cars so im going to let you in on something, you realize your making more power than a stock sti right? First thing i would look into upgrading is your transmission, if you have stock wrx trans its only good to maybe 350whp if you dont beat it, an sti trans swap into your wrx is going to run you about 4000$ on average. ive seen em go for 6000 on ebay with really low miles. if you didnt realize that 6 speed was not stock on your car, check your brakes, because 02 wrx brakes suck with about 270 wheel. i have alot of mods in my car and WISH it came with a 2.5 block and 2.0 heads. thats a sick swap, supposidly with proper tuning a torque monster. but before you jump to going fast, make sure your driveline can take the power. cause 600whp doesnt mean anything if your trans blows on the line, or when you finish and crash your car into a tree because it doesnt stop. make sure to think things through. im not bashing so please dont take it that way. hope this helped.
Quote:
Originally Posted by Masta Splint View Post
i have a 2005wrx wagon with a sti block and wrx heads. I have stock sti internals, tgv deletes, 750cc in jectors a tune, boost controller, walboro fuel pump and a 18g turbo with a sti top mount. I have about 310whp and a little less torque not 100% on the numbers very had it dyno'd this was with a street tune. The car runs great and pulls hard and is a lot of fun. I don't know how much you want to spend but i got my 18g for $750 brand new shipped! I thought it was a great deal. Anyway im just saying the car is great, plenty of everyday power but still enough to keep up or beat anyone your near everyday driving to work. lol. I did everything, bought the sti block with wrx heads (only had 3,000 miles on it ( I know cause i was there when it was bought from subaru brand new)) with tgv deletes, walboro fuel pump, 750cc injectors, sti top mount, 18g turbo, boost controller, tune, 17's, install of the motor, all for only $3,000. The deals are out there you just gotta look for em. But as far as the setup go's i love it and would definatly recomend it. I would honestly invest in a STI TRANSMISSION before you get anymore power though. I never luanch my car because i would most likely break my 5-speed. Thats my next modd is a 6-speed. Our 5-speeds are crap and cant handle much more power then I have now. So unless your planing on running my same setup and never luanching your car your prob gonna break your 5-speed with a quickness. anyway good luck man!
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Old 02-26-2010, 04:00 AM   #14
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any more info???
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Old 02-27-2010, 03:17 AM   #15
reddevil
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To make bigger power you need to start with...

Bigger injectors and Walbro pump.

Then a bigger turbo...

Then a TUNE.....

Thats the minimum.

then upgrade to FMIC

replace stock clutch..

that the easy way to 350whp.. More air + more fuel = more power.
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