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mattiekane

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So, where do i start?

i guess, from the beginning.......

I bought a 2004 Subaru Impreza WRX STi with 84k on the clock, well looked after, clean in good condition, never raced or rallied, one middle aged owner......... and a couple of other owners that where not.... 

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During my ownership i have cleaned the STi.....

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I have drove the STi.....

 

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i took it to TOTB....

 

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i also took it to scoobyfest.....

 

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i also had some fun in the snow....

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then things started to brake.....

 

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Got the new brakes on, new rad fitted, then the clutch started slipping so i threw in a paddle clutch, and just when i thought i may get a few miles of trouble free motoring...




Knock Knock.....

no its not a joke, there is something inside the engine that knocking to get out so ive decided that rather than wait for it to make its own door through the block ill pull the lump and find out whats going.

so, this is where i leave the thread for now, 3(ish) years of ownership have brought us to this point...............

 

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Aw mate hope its nothing too serious cause thats a lovely example youve got there. How many miles you get out of it in the three years? 

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It's sat at around 119k now, so got a few miles out of her, but you know how it when something breaks, it's never enough lol

I think I've resigned myself to a rebuild, just not sure what spec etc yet

Loud pipes save lives

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Yeah i know what its like my bugeye was an absolute nightmare. Radiator burst (usual plastic top bit). Paid my mates mechanic to replace rad/ water pump and timing belt kit. Car never felt right and soon after had misfire cels in every cylinder 😔. Had to then pay an actual mechanic to sort the timing (i have a picture of how badly it was done somewhere, will dig it out) . Then front calipets started sticking. Exhaust fell off holes appeard in chassis ect ect could go on lol. Still loved it even though it was a wee sod ... so i bought another wrx ofcourse much to the annoance of my mrs lol. 

Rebuild it mate you will thank yourself im sure everyone on here would say the same. 

 

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Im sure the guy never done it on purpose but I wasnt impressed but it was all a long time ago now. The guy who sorted it just reckoned he never double checked everything was tight. 

 

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oh yeah, looks like hes timed it up then done up the tensioner. ooops, i assume there was nothing damaged and just a timing adjustment required?

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Standard pistons and rods in a ej207 are supposed to be good for 450hp ,so a standard spec rebuild would be plenty power for most . I dare say it really depends on your target power and budget . Although you'd probably be better off buying a new crank ,the standard x drilled nitrated crank is good for 700 hp (so probably not worth upgrading)

Unfortunately you won't know how much damage has been done to the pistons and bores/block untill it's stripped.  Just bear in mind that the semi closed deck is rated to 450hp,  so if you do need new pistons and /or block ,that it's not worth buying 750hp rated internals unless you upgrade the deck type 😉.

Best of luck , bud 

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I was thinking of replacing the crank regardless, partly cos im very tempted by going 2.1, but then I think what's the point may as well just go standard crank, as you say its good for 700bhp-ish, so maybe conrods and piston upgrade just to future proof, chances are it wont get over 400-450bhp, but if I'm already in there, why not. but then if imp doing that I should really source a closed deck block other wise its a waste of money if there is still a "weak link" (The block).

so I think:-

Closed deck
standard crank
upgraded rods and pistons
oil pump
gaskets
etc etc

I have a new water pump and timing belt as it was about due one anyway.

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2 hours ago, mattiekane said:

I was thinking of replacing the crank regardless, partly cos im very tempted by going 2.1, but then I think what's the point may as well just go standard crank, as you say its good for 700bhp-ish, so maybe conrods and piston upgrade just to future proof, chances are it wont get over 400-450bhp, but if I'm already in there, why not. but then if imp doing that I should really source a closed deck block other wise its a waste of money if there is still a "weak link" (The block).

so I think:-

Closed deck
standard crank
upgraded rods and pistons
oil pump
gaskets
etc etc

I have a new water pump and timing belt as it was about due one anyway.

as said, if your replacing the pistons and rods then may as well get the 2.1 kit, only difference it the crank. there's no repalcement for displacement as they say

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As tidy said ,if you are gonna buy uprated rods and pistons along with a new crank ,you could buy stroker pistons (1mm ish shorter ) and a 2.5 sti crank and increase the cc to a 2.1 stroker . 

Have you decided Who's going to build it for you yet ?

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Probably going to build it myself, not overly keen on paying other people to do stuff lol

Loud pipes save lives

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