STI heads on forged EJ20 block
14 March 2007, 01:59 PM
#1
Scooby Regular
Thread Starter
iTrader: (9)
Join Date: Aug 2005
Posts: 790
Likes: 0
Received 0 Likes
on
0 Posts
STI heads on forged EJ20 block
Hi guys,
would a forged bottomend with STI V5/6 heads be any good?
I have an engine from a MY99 classic with uprated internals and thinking of using STI heads incl. cams on it.
I mechanic tried the STI heads already on his 2.0l and said, that it is no more power to expect from this change...
But the cams are "sharper" and also the valvetrain seems to be better on STI V5/6 heads, isnīt it?!?
Please let me know!
Greets
Markus
would a forged bottomend with STI V5/6 heads be any good?
I have an engine from a MY99 classic with uprated internals and thinking of using STI heads incl. cams on it.
I mechanic tried the STI heads already on his 2.0l and said, that it is no more power to expect from this change...
But the cams are "sharper" and also the valvetrain seems to be better on STI V5/6 heads, isnīt it?!?
Please let me know!
Greets
Markus
14 March 2007, 03:52 PM
#2
Scooby Regular
iTrader: (1)
Join Date: Aug 2005
Location: Manchester ish
Posts: 18,547
Likes: 0
Received 0 Likes
on
0 Posts
if you have different heads etc then to take full advantage of them you would need an ecu to match them (rev limits, fuelling for intake etc) so on their own they possibly wouldnt gain you anything.
14 March 2007, 04:12 PM
#3
14 March 2007, 04:54 PM
#4
Scooby Regular
Thread Starter
iTrader: (9)
Join Date: Aug 2005
Posts: 790
Likes: 0
Received 0 Likes
on
0 Posts
And of course I have got a programmable ecu to map for the heads, so with this I can take advantage of the other camprofile the STI V5 heads have?!
@Wurzel:
Unfortunatly I do not have a closed deck block, just a normal WRX MY99 shortblock with uprated internals and WRX heads.
Maybe you can get a closed deck block from a member here?!
I will take a look around too, send me a mail to mks22@gmx.at with the spec you are after.
@Wurzel:
Unfortunatly I do not have a closed deck block, just a normal WRX MY99 shortblock with uprated internals and WRX heads.
Maybe you can get a closed deck block from a member here?!
I will take a look around too, send me a mail to mks22@gmx.at with the spec you are after.
14 March 2007, 07:40 PM
#5
I have read that the 'best' heads are Sti V3 as the cams are the 'best'
Many use the V5 heads and I'm sure they are better than non Sti heads.
Good place to ask this question is on 22B.
Graham
ps:
Mark at Lateral has a row of CDB and so has API Engines.
Many use the V5 heads and I'm sure they are better than non Sti heads.
Good place to ask this question is on 22B.
Graham
ps:
Mark at Lateral has a row of CDB and so has API Engines.
15 March 2007, 11:59 AM
#6
Scooby Regular
Thread Starter
iTrader: (9)
Join Date: Aug 2005
Posts: 790
Likes: 0
Received 0 Likes
on
0 Posts
Thanks for the advice, will ask the guys there too!
Problem with the STI V3 heads, is that I would have to change many other things to make it fit a MY99/00 engine!
Problem with the STI V3 heads, is that I would have to change many other things to make it fit a MY99/00 engine!
Trending Topics
16 March 2007, 06:12 PM
#8
