Probably a very simple question; dynamics of adding forced induction to an RS2.5 eng
#1
VIP Member
Thread Starter
iTrader: (3)
Join Date: Nov 2002
Location: Lastweek Lane - Watertown, NY
Posts: 10,133
Car Info: 02WRXpseudoSTiWannabeWagon
Probably a very simple question; dynamics of adding forced induction to an RS2.5 eng
...or any NA engine.
Question is, what are the critical factors that influence why the EJ255(?), in other words, the RS/TS engine, wasn't more popular to be turbo'd?
I believe I only know of one company that provides product for that engine, Ludespeed, but why?
Is it due to compression ratio? I'll look it up, but I'm pretty certain that the RS engine is higher.
It really threw me for a loop when I rode with a friend in his RS-T and saw that he was only blowing like 3 psi and creating some pretty impressive power, but I never asked why he was unable to push WRX comparitive boost. I just figured it was due to hardware.
The block is the same, save for the 'non vs. semi-closed deck'.
The difference between thepistons and rods are a very good reason, I know, but if you're building up your engine, it's a no brainer that you'd be upgrading those pieces to forged, anyhow.
I'll have to research bore and stroke differences while I'm at it.
Question is, what are the critical factors that influence why the EJ255(?), in other words, the RS/TS engine, wasn't more popular to be turbo'd?
I believe I only know of one company that provides product for that engine, Ludespeed, but why?
Is it due to compression ratio? I'll look it up, but I'm pretty certain that the RS engine is higher.
It really threw me for a loop when I rode with a friend in his RS-T and saw that he was only blowing like 3 psi and creating some pretty impressive power, but I never asked why he was unable to push WRX comparitive boost. I just figured it was due to hardware.
The block is the same, save for the 'non vs. semi-closed deck'.
The difference between thepistons and rods are a very good reason, I know, but if you're building up your engine, it's a no brainer that you'd be upgrading those pieces to forged, anyhow.
I'll have to research bore and stroke differences while I'm at it.
#3
VIP Member
Thread Starter
iTrader: (3)
Join Date: Nov 2002
Location: Lastweek Lane - Watertown, NY
Posts: 10,133
Car Info: 02WRXpseudoSTiWannabeWagon
I guess it boils down to compression ratio is higher and materials are softer. It would seem as though the manifold from any EJ should be compatible.
Thread
Thread Starter
Forum
Replies
Last Post
onemisledyuth
Engine/Power - non turbo (All non turbo Imprezas)
3
01-13-2004 11:50 PM
AC_gohan
Site Suggestions and Feedback
3
11-29-2002 01:09 PM