cashrolling

A few months ago I put one APS sr 40 on my stok motor and it was fine.When I reach 90k miles I decided to reinforce the engine before going bad.So the 23 October I took my cer to my trustworthy shop and we decided to go with the following mods, in order to have reliability and smoother power:
-crower rods
-92mm wiseco pistons
-2.5 sti crankshaft
-cosworth heads, valves and cams
- plus all the minor components.......and lots of machine work on the engine...
Finally after a grueling wait 2 days ago I got the car back.I am surprised how much it has improved.On the dyno we got 421hp, but the real difference is driving it.Basically the engine is at full boost about 1100rpm earlier and it pulls hard to 8000rpm.I am very happy with the results and it was cheaper than changing the engine with a 2.5 block.....

Daveo

what part of your post is about a 2.2 stroker kit matey?

Dave

P20SPD

iTrader: (1)

2.5 crank in a 2.0l i guess.

DARKDESTROYER9

im not sure because i dont know the maths equasion but if you take into account the bigger pistons and longer throw of the 2.5 crank it should work out close to 2.2 ltr, it would be nice to have prices of the maching ect and the cost of parts to compare to a 2.5 conversion or a 2.2 stroker kit

911

There is a great thread about building a 'steel' 2.5/2.33/2.2 in projects that has some really good info on the machining and the costs from those who actually do it. (very rare)

The cost difference is essentially the rebore/new liners and machining for the crank bearing.
Graham.

cashrolling

OK, if I can help here is the bill attachments.I spent in all Euro 6300,00.
That included all the main parts, machine shop works, hours of work and all bunch of little things they changed in the engine(pulleys, belts, pumps).....
If I had to put the 2.5 block with same kind of internals and heads I would have spent little over 9k.I am extremly pleased with the results, turbo lag is completly gone and full boost is well around 1000rpm earlier...

cashrolling

OK, the other day my aps sr40 gave up already after 2000KM, so I sent it to get fixed, I was very disappointed and put the original turbo back on.Surprise, the car is sick fast, with the engine set up this way and the stock turbo there is almost zero turbo lag, the car is always very reactive and pull hard all the way to 8000 rpm.I love it so much that I think I will not put back the aps turbo!!!!