Engine build - which heads best for 2.1?
#1
Engine build - which heads best for 2.1?
Hi all,
I am in the process of specing up my engine build, am going 2.1 on a cdb, and am looking at which heads to use.
Current options are, go for V5/6 sti heads, with new / different cams etc
Or: going for avcs/vvt heads, which I know will need wiring in as my wrx doesn't currently have these. I like the idea of being able to get more torque
Whatever route I go heads will be machined/ported etc, new valves etc
What I would like to know more about is;
- what wiring is required to add vvt heads onto my wrx, which ecu will I need (ideally looking at simtek)
- if I go v5/6 head route, what cams would you reccomend?
I have a target figure of around 500bhp, but maintaining driveability, minimal lag etc is as important as overall figures.
Thanks
Iain
I am in the process of specing up my engine build, am going 2.1 on a cdb, and am looking at which heads to use.
Current options are, go for V5/6 sti heads, with new / different cams etc
Or: going for avcs/vvt heads, which I know will need wiring in as my wrx doesn't currently have these. I like the idea of being able to get more torque
Whatever route I go heads will be machined/ported etc, new valves etc
What I would like to know more about is;
- what wiring is required to add vvt heads onto my wrx, which ecu will I need (ideally looking at simtek)
- if I go v5/6 head route, what cams would you reccomend?
I have a target figure of around 500bhp, but maintaining driveability, minimal lag etc is as important as overall figures.
Thanks
Iain
#5
Scooby Regular
iTrader: (7)
http://www.thor-racing.co.uk/Link-103.asp
And about Autronics is about £1495 mapped and fitted
Simtek is useless ECU for AVCS controling.
Jura
#6
ok thanks, so the autronics is only just more expensive than simtek so will be within my budget, syvecs I know is very good but also very expensive
Do you know what is involved with adding the extra wiring, is it fairly straightforward or a massive job?
Do you know what is involved with adding the extra wiring, is it fairly straightforward or a massive job?
#7
Scooby Regular
iTrader: (7)
http://www.linkecu.com/support/docum...on/SubaruV5to6
http://www.linkecu.com/support/docum...on/SubaruV7to9
You will need AVCS wiring loom and AVCS solenoid.
Jura
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#8
Scooby Regular
iTrader: (23)
http://www.ds1motorsports.com/assets...l_document.pdf
I`ve been thinking about doing the same on a UK WRX with sti long motor, Still in the thinking process at the mo, Not sure if its worth it with Ecu etc....
#10
Scooby Regular
iTrader: (7)
Hi there i'm now building 2.1 stroker with AVCS,at this time i will run just with std.ECU,mine engine is JDM WRX which have built AVCS on inlet side and i will run just std.JDM WRX ECU,but i think i will need custom map for AVCS.
If you are will go for AVCS,you will need AVCS wiring loom/kit here is link http://www.iaperformance.com/product...oducts_id=2580
and AVCS solenoid which cost around £80
And additional wiring will be maybe nothing serious if you are go built engine from scratch.
You will see....Keep posted.
Jura
If you are will go for AVCS,you will need AVCS wiring loom/kit here is link http://www.iaperformance.com/product...oducts_id=2580
and AVCS solenoid which cost around £80
And additional wiring will be maybe nothing serious if you are go built engine from scratch.
You will see....Keep posted.
Jura
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