2.5 Block conversion
08 October 2011, 10:17 PM
#1
2.5 Block conversion
Read somewhere that you can convert a 2.5 block from open to closed deck blocks. has anybody had this done and if so how reliable is it, whats the drivability like, what power can you make, where do you get it done and how much?
08 October 2011, 10:20 PM
#2
Quite a few on here can pin them, if that's what you mean. Paul Finch is only an example...... Enginetuner, API etc
http://www.finchmotorsport.co.uk/pag...69&p=69example.......
Shaun
http://www.finchmotorsport.co.uk/pag...69&p=69example.......
Shaun
08 October 2011, 10:48 PM
#4
hi sorry i didnt know whether it would make a difference or not. currently i drive a 2005 sti with 2.5 bottom end, standard heads, hyperflow monster fmic, md321h, 650cc injectors k&n caik with autronics. i'd like a reliable 500bhp maybe even 600 at a push. i see a few people on here making very impressive power on the ej22 blocks
08 October 2011, 11:35 PM
#6
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i have seen a cosworth 2.6 and 2.7 stroker version, think its based on the usdm but id be interested to see what kinda power they are running on that block. I know if you plan massive power then the 2.35 is the way
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10 October 2011, 01:02 PM
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Drops a liner in is a very good description of his work.and then when you run more than 1psi of boost or go over 3000rpm the liner he has just dropped in will just drop a little bit further down the block.
10 October 2011, 01:18 PM
#11
2.5 cdb rotated GT35/42
Last edited by banny sti; 10 October 2011 at 01:21 PM.
10 October 2011, 09:35 PM
#14
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iye a full year of it to be exact,then i took it somewere else and got another years worth of hassle over yet another dodgy liner.so after 2 years of nothing but problems i bought a car that had just had an engine built by enginetuner with one of there 2.1 strokers,and 18 months later its still going as good as it did when it was first built.
i must be getting old
i must be getting old
10 October 2011, 11:14 PM
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iye a full year of it to be exact,then i took it somewere else and got another years worth of hassle over yet another dodgy liner.so after 2 years of nothing but problems i bought a car that had just had an engine built by enginetuner with one of there 2.1 strokers,and 18 months later its still going as good as it did when it was first built.
i must be getting old
i must be getting old
11 October 2011, 10:17 AM
#19
I wouldn't let Chy wash my car never mind do anything mechanical on it.
Don't bother with a linered motor of any sort.
Either pin the 2.5 like I have (600bhp) or go the whole hog and get a 2.35.
I've been a real fan of the 2.5 but having witnessed first hand that what a difference replacing a fully built and linered 2.5 with a proper 2.35 then I can honestly say if you can afford it and want serious power then its the way to go. Be warned though its expensive.
If you're just after a fast road car with circa 500bhp then I'd advocate the pinned 2.5 everytime. They are simply awesome to drive with power and torque everywhere you need it.
Don't bother with a linered motor of any sort.
Either pin the 2.5 like I have (600bhp) or go the whole hog and get a 2.35.
I've been a real fan of the 2.5 but having witnessed first hand that what a difference replacing a fully built and linered 2.5 with a proper 2.35 then I can honestly say if you can afford it and want serious power then its the way to go. Be warned though its expensive.
If you're just after a fast road car with circa 500bhp then I'd advocate the pinned 2.5 everytime. They are simply awesome to drive with power and torque everywhere you need it.
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