trevsjwood

iTrader: (2)

I'm going to have the the above fitted to my 03 WRX, 53000miles on clock, before upgrading to 380-400bhp. Would it be a good idea to replace the stock crankshaft at the same time as it's got to come out and probably wouldn't effect the end labour cost greatly. I understand the stock crankshaft is good up to 450bhp.
Any views appreciated
Trevor

dunx

iTrader: (3)

£370 for an STI crank last time I looked... and some have run over 500 bhp/

HTH

dunx

merlin24

iTrader: (1)

As above - Version 9 Nitrided crank would be a good upgrade.

Mick

trevsjwood

iTrader: (2)

Thanks chaps - but you think best to upgrade altogether?
Trevor

RA Dunk

if you upgrading rods and pistons why not go the full distance and do the bearings and crank too, you would end up with a forged pretty much bullet proof engine then

merlin24

iTrader: (1)

If you plan on keeping the Scooby and can budget for a forged build - go for it - future proof it for when you need more than your 380-400bhp

trevsjwood

iTrader: (2)

Thanks-I agree
Trevor

trevsjwood

iTrader: (2)

Roughly how many hours labour would a garage charge for fitting pistons conrods and crank?
I understand the engine has to come out and stripped.
Thanks for any input
Trevor

carl.woolford

hi had one done the other day dropped the standard block down and they charge 265 to rebuild it also with all new bottom end gasket set, hope this gives you some idea of prices

trevsjwood

iTrader: (2)

Thanks Carl-I'm getting very wide ranging views, one is 10-12 hours which fits near to what you did- another says 2-3 days but he want's to take the head off as well and check for any needed work there.
costs would be;
Wossner pistons and rods-£880
STI9 Crank ,RCL bearings-£560
Gaskets, oil, etc
Work on the head, valves etc + labour £1500-£2000

Total £2940-£3440

anybody along these lines?
Trevor

Jay m A

iTrader: (2)

If you are going to replace crank, rods and pistons, then you might as well increase the capacity and stroke it to 2.1...

Have a look at the Engine tuner deal in trader announcements.

chrisdicko

iTrader: (21)

Just to ask another Q along the same lines....

Hopefully I will go forged next year, and will obviously be replacing the rods, pistons, as said above.

But...as Jay suggested a 2.1 Stroker would be a good idea if everything is out. But what are the 2.33L, 2.5L conversions etc which I've read about on here. Why say go for a 2.1 Stroker over a 2.33 or 2.5 conversion etc? Do the prices vary much? What else is there to do with the engine while it's out?


Sorry if that sounds numb, but I've always wondered......

MartynJ

Because either one of the other 2 would require a change of block and the additional cost of buying one, on top of all of the bits that go with them.

chrisdicko

iTrader: (21)

So a stroker is the cheaper way to go when going forged, and gives that bit more power?

Jay m A

iTrader: (2)

Its a no cost option on a EJ20 block, if your plan is to replace crank, rods and pistons.

As Martyn mentions above, a 2.33 requires a EJ22 block, 2.5 needs an EJ25 block.

Or of course you could reline your 2.0 block depending on type, but of course that is an additional expense...

Jay m A

iTrader: (2)

Extra power? negligable but more torque lower down so a better spread of power

chrisdicko

iTrader: (21)

I see! Thanks a lot for the info

What does a Stroker kit consist of?

banny sti

iTrader: (68)

EJ20 block, 2.5 crank, stroker rods and pistons That gets you to 2.1 capacity

Banny

dunx

iTrader: (3)

Of course it would be rude not to fettle the heads whilst it's in bits....

LOL

dunx

P.S. I'm in the queue for a 2.1 too !

trevsjwood

iTrader: (2)

I e-mailed David at API because Engine Tuner are just to far away, asking the question did they do the 2.1 stroker. His response was that he felt it didn't represent good value for money and that although there were advantages with it, the 2litre would do almost as well. He recommended to me the 2.5litre new short engine with forged pistons as the best way.
I don't know about the comparison between replacing pistons/rods/crank verses fitting a 2.1 stroker from Engine tuner because from the prices it would appear to be a no-brainer.
I've been told to expect labour charges of 35-40hours x £50hr for pistons /rod/crank
Trevor

Jay m A

iTrader: (2)

If you are in Northampton then Zen are even closer

trevsjwood

iTrader: (2)

Zen are my favourite, they've done much work for me and to be fair I haven't asked them the question,yet, but it will be asked.
At the moment I'm in the gathering information mode.
Thanks
Trevor