built motor 450-500 awhp??

[simon930]

i just blew my 03 wrx 2.0l motor and i want to build a motor that makes around 450-500 awhp. i was looking at the gt35r kit also.
this is my daily driver
im not in a rush to build the motor so i have time.

some ?'s

what routes should i go ?

shortblocks?

hybrid or not?

heads?

cams?

what turbo etcccc....

thanks let me know

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[sense of nature]

Better set a budget first ,450-500 AWHP build will be expensive!

[sidewayz]

Shortblock,pistons,cams,35r 450whp. Done.


Do some research. This has been done many times before

[simon930]

I was thinking of getting the Topspeed SS1 shortblocl which comes with

-New Subaru 2.5L engine
-CP TS Spec Forged Pistons
-Coated Pistons
-Fully Blueprinted assembly
-Forged EJ257 Crankshaft
-Forged EJ257 Connecting rods

Should I do a hybrid with the gt35r?
Or
Should I stick with Sti heads and the gt35r?

[kasra007]

Your shortblock seems fine but get better rods, the stock ones won't hold for that power level.
Definitely will want cams with that turbo.
Stock heads will do more than fine at that power level and no need to change them.
The turbo is also fine, you can even use the bolt on version to save some money and then use 50/50 meth/water.

this build will roughly cost you around 11-14k

[dap]

Originally Posted by kasra007

this build will roughly cost you around 11-14k

I think the 11-14k estimate is off. Wanting up to 400whp might be 11k but up to 500whp will def be over 14k. You will need other supporting mods (fuel, gauges, etc) and that will add up quick. I would say around 17k and up is closer. Best of luck.

[kasra007]

Well 11-14k is considering you have the basic mods such as FMIC , fuel pump, injectors, turboback, engine management (cobb, utec..). I am going to assume no body is going to buy a WRX or STI and instantly mod it car to 500 WHP.
Having those already with some haggling skills and patience to find the right parts at the right price you can get to 500 WHP.
For gauges you only need oil pressure, boost, and a/f ratio.
Labor for everything should not really cost you anything above 3500, the rest is for parts.

[PhatBotti Tuning TKR]

OP,

11k-14k is absolutley absurd!

You have stated what you wanted, but please know you can have that + reliability at that power level. No need for the headwork what so ever either.


I currently have 34k hard miles on my Rallyspec motor. The motor builder there, Jodie, has been building for years. His motors dont get the typical 500-15000 miles most people get with their "builds"

On pumpgas, I currently put 467whp to the tire (dynojet dyno). On racegas (c16), I put down 557whp, with room for more believe it or not. Stock heads!!


$3500 for the motor (Short block w/ cosworth pistons, manley rods, cosworth bearings)
$2000 for labor
$1500 for a T60R stock location (FP RED sized)

0r

$1800 for a CXR750 stock location (80lb/min 500whp pumpgas turbo) This just came out, Im selling them and am about to put one on my personal car.


$7300 will get you 500whp or close on pumpgas

If you do not have an IC, My TXS FMIC works just fine and can be had for like 700 brand new. D-werk 1300's if you do not have large injectors, 550.

$8550 tops my friend for the upper end of what you asking!!

-Mikey

[bugeye1257]

yeh i really dont know where some of you guys are coming up with these ridiculous high numbers to make 500awhp. save a **** load if you do some of the work yourself also!

[kasra007]

Originally Posted by PhatBotti Tuning TKR

OP,

11k-14k is absolutley absurd!

You have stated what you wanted, but please know you can have that + reliability at that power level. No need for the headwork what so ever either.


I currently have 34k hard miles on my Rallyspec motor. The motor builder there, Jodie, has been building for years. His motors dont get the typical 500-15000 miles most people get with their "builds"

On pumpgas, I currently put 467whp to the tire (dynojet dyno). On racegas (c16), I put down 557whp, with room for more believe it or not. Stock heads!!


$3500 for the motor (Short block w/ cosworth pistons, manley rods, cosworth bearings)
$2000 for labor
$1500 for a T60R stock location (FP RED sized)

0r

$1800 for a CXR750 stock location (80lb/min 500whp pumpgas turbo) This just came out, Im selling them and am about to put one on my personal car.


$7300 will get you 500whp or close on pumpgas

If you do not have an IC, My TXS FMIC works just fine and can be had for like 700 brand new. D-werk 1300's if you do not have large injectors, 550.

$8550 tops my friend for the upper end of what you asking!!

-Mikey

You are missing lots of hidden costs and supporting mods...

Clutch
Dyno tune labor.
Camshaft
springs + retainers
Tial 44 mm + dump tube if going EWG
Engine management.
up pipe
headers
engine gasket kit
11 mm oil pump
Headstuds
water pump
railings, extra pump, FPR + labor for installing it.
engine + transmission mounts

if he wants rotated kit then throw in the kit + turbo thats around 2600-3000, not mentioning the extra labor for installing the kit + if any fabrication needed.

add what i listed and it will make up the remainder for where you guys think my estimate is "absolutley absurd!"

I mean sure there are some stuff on that list you can take out.. but going cheap has never helped.

you are leaving behind LOTS of hidden costs..


@bugeye1257, yup if you do the work yourself, you will end up saving 2-3.5k max.

[simon930]

Are u using 2.0 heads or 2.5 heads?

Thanks for all the info

Originally Posted by PhatBotti Tuning TKR

OP,

11k-14k is absolutley absurd!

You have stated what you wanted, but please know you can have that + reliability at that power level. No need for the headwork what so ever either.


I currently have 34k hard miles on my Rallyspec motor. The motor builder there, Jodie, has been building for years. His motors dont get the typical 500-15000 miles most people get with their "builds"

On pumpgas, I currently put 467whp to the tire (dynojet dyno). On racegas (c16), I put down 557whp, with room for more believe it or not. Stock heads!!


$3500 for the motor (Short block w/ cosworth pistons, manley rods, cosworth bearings)
$2000 for labor
$1500 for a T60R stock location (FP RED sized)

0r

$1800 for a CXR750 stock location (80lb/min 500whp pumpgas turbo) This just came out, Im selling them and am about to put one on my personal car.


$7300 will get you 500whp or close on pumpgas

If you do not have an IC, My TXS FMIC works just fine and can be had for like 700 brand new. D-werk 1300's if you do not have large injectors, 550.

$8550 tops my friend for the upper end of what you asking!!

-Mikey

[simon930]

I will be buying the shortblock and assembling the motor myself and putting it in the car so I will save some money that way.

Thanks for all the comments

[Homemade WRX]

Originally Posted by kasra007

You are missing lots of hidden costs and supporting mods...

Clutch
Dyno tune labor.
Camshaft
springs + retainers
Tial 44 mm + dump tube if going EWG
Engine management.
up pipe
headers
engine gasket kit
11 mm oil pump
Headstuds
water pump
railings, extra pump, FPR + labor for installing it.
engine + transmission mounts

you are leaving behind LOTS of hidden costs..

what he said ^^^

though for 450-500whp he doesn't need everything listed there, is doesn't jurt to do it once and get it all out of the way...because we all know once you have 500whp you don't stop there

[wrxwhat]

11-14k is still a ridiculously high estimate.

[RicersWetDream]

Lol that's not high at all....

Once you add in all the stuff you don't think about you can't build a good 500whp car for $8,550.

The short block? Sure, you can build that to hold 500 for maybe 3 grand. The car? Hell no.

Clutch to hold that kind of tq
Transmission inevitably going kaboom with that much tq
All intake and exhaust piping
Engine Management
Gaskets, oil pump, water pump, studs,timing belt/tensioner that should all be replaced or upgraded when doing the engine
Turbo
Fuel Injetors and Pump(s)
Engine Mounts
Head work that should be done: cams at a minimum, but a pnp while they're apart is kind of a no-brainer. Throw springs/retainers in there for fun.

[kasra007]

Originally Posted by wrxwhat

11-14k is still a ridiculously high estimate.

No its not and i still stand correct. This is not your typical stage 2 build, you are missing tons of supporting mods + hidden costs.

If you are trying to save money, don't do any head work because stock heads are more than fine for that power level.

Majority of people think you only need a built engine + turbo setup and thats it..

[simon930]

I already have all the supporting mods like
Aem ems
1000 cc injectors
HKS "3" exhaust
FMIC
Fuel pump
Headers
Downpipe and uppipe (if I don't go rotated)
Built transmission
Stage 3 clutch
So basically I need a built short block for around $3000 and my stock wrx heads freshened up.
Big Turbo (not sure yet) I was also looking at the new AMR CXR750 for stock location.
+ timing belt kit, oil pump, gasket set, motor mounts, arp headstuds. And some other small stuff I probably forgot.

If any1 thinks I forgot something please give your insights on what I will need that I have not listed or might of forgot

[al82]

Originally Posted by simon930

I already have all the supporting mods like
Aem ems
1000 cc injectors
HKS "3" exhaust
FMIC
Fuel pump
Headers
Downpipe and uppipe (if I don't go rotated)
Built transmission
Stage 3 clutch
So basically I need a built short block for around $3000 and my stock wrx heads freshened up.
Big Turbo (not sure yet) I was also looking at the new AMR CXR750 for stock location.
+ timing belt kit, oil pump, gasket set, motor mounts, arp headstuds. And some other small stuff I probably forgot.

If any1 thinks I forgot something please give your insights on what I will need that I have not listed or might of forgot

The turbo should be the last thing on your list...just get your engine back together break it in and then worry what you want to run on it.

You have it pretty much covered....

I just built my block for an 06 wrx so let me know if you have any questions...goodluck

[simon930]

Thanks for your comments

[soobaviator]

Reliability? Reliability to my mind is 500WHP that won't need to be rebuilt for 50-60,000 miles...

$11-$15K is definitely the range you're in that is commensurate with the difficult goals of such high power and DD reliability. Maybe more than that really. The most bullet proof setups would start around a Cosworth long block (or equivalent) which are about $16K to begin with...


-soobaviator

[PhatBotti Tuning TKR]

Originally Posted by soobaviator

Reliability? Reliability to my mind is 500WHP that won't need to be rebuilt for 50-60,000 miles...

$11-$15K is definitely the range you're in that is commensurate with the difficult goals of such high power and DD reliability. Maybe more than that really. The most bullet proof setups would start around a Cosworth long block (or equivalent) which are about $16K to begin with...


-soobaviator

Absolutely not. Do you know cosworth outsources most products??

I saw there 18,500 long block last 750 miles with no compensation

Wrxwhat ran a 6262 for 67,000 miles on his built block and stock heads. I literally have the same setup for a motor and my car resides outside with 558whp, and 34k miles with no oil burning.

Cost of the block, $3,007.00

[soobaviator]

Originally Posted by PhatBotti Tuning TKR

Absolutely not. Do you know cosworth outsources most products??

I saw there 18,500 long block last 750 miles with no compensation

Wrxwhat ran a 6262 for 67,000 miles on his built block and stock heads. I literally have the same setup for a motor and my car resides outside with 558whp, and 34k miles with no oil burning.

Cost of the block, $3,007.00

Awesome so another "Cosworth sucks and I can do better" which is fine by me actually I don't have to carry any water for them. Great results you have but they are most likely a result of your own expertise and attention to detail. The OP is obviously not a builder of your qualification and will need to pay someone to achieve results. It's not going to be that cheap plain and simple.

[kasra007]

i agree with phatbotti a bullet proof setup does not need to be a cosworth block.

[simon930]

Originally Posted by PhatBotti Tuning TKR

Absolutely not. Do you know cosworth outsources most products??

I saw there 18,500 long block last 750 miles with no compensation

Wrxwhat ran a 6262 for 67,000 miles on his built block and stock heads. I literally have the same setup for a motor and my car resides outside with 558whp, and 34k miles with no oil burning.

Cost of the block, $3,007.00

What turbo do u have on ur motor that ur making 558whp and what psi?

Thanks let me know

[kasra007]

Gt35r with a bigger housing will get you there